Answer:
14 bags of snacks.
Step-by-step explanation:
x = the first number
y = the second number
x minus y = 3
x plus y = 13
x - y = 3
x + y = 13
3 x = 8 x + y = 13 8 + y = 13 y = 5 x - y = 3 x +y = 13 2x = 16
The first number = 8
The second number = 5
2x = 16
Difference of the numbers is 3
x = 8
8 – 5 = 3
Sum of the numbers is 13
x + y = 13
8 + 5 = 13
8 + y = 13
y = 5
4 snacks plus beverages = 371 beverages = snacks plus 19
The 8th grade class supplied bags of snacks and beverages for the school dance. They supplied 19 more beverages than bags of snacks. The dance was supplied with a total of 371 items.
x = the number of snacks
y = the number of beverages
snacks plus beverages = 371
beverages = snacks plus 19
x + y = 371
y = x + 19
5 x + y = 371
y = x + 19
Number of snacks = 176
Number of beverages = 195
x + x + 19 = 371
2x = 371
total number of snacks = 371
2x = 352
= 371?
371 = 371
x = 176
19 more beverages than snacks
y = x + 19
= 195
y =
195 = 195
y = 195
6 The seventh and eighth grade bands held a joint concert
The seventh and eighth grade bands held a joint concert. Together there were 188 band members. If the eighth grade band is 3 times as big as the seventh grade band, how big is the eighth grade band?
x = size of the 7th grade band
y = size of 8th grade band
7th grade and 8th grade together = 188 8th grade is 3 x 7th grade
x + y = 188
y = 3x
7 x + 3x = 188 x = 47 y = 3(47) y = 141 x + y = 188 y = 3x 4x = 188
7th grade band = 47 students
8th grade band = 141 students
x + 3x = 188
4x = 188
7th and 8th grade together = 188
= 188?
x = 47
188 = 188
y = 3x
8th grade is 3 times as big as 7th grade
y = 3(47)
141 = 3(47)
141 = 141
y = 141
8 x + y = 81 x = 2y earrings plus necklaces = 81
Amy has 81 pieces of jewelry. She has twice as many earrings as she has necklaces
x = number of earrings
y = number of necklaces
earrings plus necklaces = 81
earrings = 2 x necklaces
x + y = 81
x = 2y
9 2y + y = 81 y = 27 x = 2(27) x = 54 x + y = 81 x = 2y 3y = 81 x = 2y
Number of earrings = 54
Number of necklaces = 27
2y + y = 81
3y = 81
81 pieces of jewelry total
= 81?
y = 27
81 = 81
x = 2y
Twice as many earrings as necklaces
x = 2(27)
2(27) = 54
54 = 54
x = 54
10 9x + 6y = 48 6x + 12y = 72 9 rose plus 6 lily = 48
Julia is making candles. In the morning, she made 9 rose candle plates and 6 lily candle plates. They had a total of 48 candles. In evening, she made 6 rose candle plates and 12 lily candle plates. They had a total of 72 candles. How many candles did each plate have?
x = candles on rose plates
y = candles on lily plates
9 rose plus 6 lily = 48
6 rose plus 12 lilly = 72
9x + 6y = 48
6x + 12y = 72
11 x = 2 6(2) + 12y = 72 12y = 60 y = 5 [9x + 6y = 48] (-2) 6x + 12y = 72
Candles on the rose plates = 2
Candles on the lilly plates = 5
-18x - 12y = -96
6x +12y = 72
9 rose and 6 lilly is 48 plates
9(2) + 6(5) = 48
-12x = -24
= 48
x = 2
6 rose and 12 lilly is 72 plates
6(2) + 12y = 72
6(2) + 12(5) = 72?
y = 72
= 72
12y = 60
y = 5
12 3 adults plus 12 children = 162 3 adults plus 8 children = 122
The cost of admission to a popular music concert was $162 for 12 children and 3 adults. Admission for another group was $122 for 8 children and 3 adults. How much was the admission for each child and adult?
x = the cost of one adult ticket
y = the cost of one child ticket
3 adults plus 12 children = 162
3 adults plus 8 children = 122
3x + 12y = 162
3x + 8y = 122
13 3x + 12y = 162
[3x + 8y = 122] (-1)
The cost of one adult ticket = $14
The cost of one child ticket = $10
3x + 12y = 162
-3x + -8y = -122
12 children and 3 adults spent $162
12 at $10 and 3 at $14 = $162?
4y = 40
$120 + $42 = $162
y = 10
8 children and 3 adults spent $122
3x + 12(10) = 162
8 at $10 and 3 at $14 = $122?
3x = 162
$80 + $42 = $122
3x = 42
x = 14
Answer:
14
Step-by-step explanation:
How do you round to 630 to the nearest hundred
Answer: Here we will tell you what 630 is rounded to the nearest hundred and also show you what rules we used to get to the answer.
Remember, we did not necessarily round up or down, but to the hundred that is nearest to 630.
First, 630 rounded to the nearest hundred is: 600
When rounding to the nearest hundred, like we did with 630 above, we use the following rules:
A) We round the number up to the nearest hundred if the last two digits in the number are 50 or above.
B) We round the number down to the nearest hundred if the last two digits in the number are 49 or below.
C) If the last two digits are 00, then we do not have to do any rounding, because it is already to the hundred.
Step-by-step explanation:
Rounding 630 to the nearest hundred results in 600.
To round the number 630 to the nearest hundred, consider the tens digit of the number.
In this case, the tens digit is 3.
If the tens digit is 5 or greater, you round up to the next hundred.
If the tens digit is 4 or less, you round down to the current hundred.
Since the tens digit in 630 is 3, which is less than 5, you round down.
Therefore, rounding 630 to the nearest hundred results in 600.
Learn more about Round off here:
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7. Use mental math
28% of 100
Answer:
28/100 x 100= 28
Answer:
28% divided by 100 = 28
Brainly please?
what is -14+5k-3= simplifying
Answer:
5k-17
Step-by-step explanation:
-14+5k-3=5k-14-3=5k-17
What sum is represented by the following number line?
Answer:
Step-by-step explanation:
B
Answer:
It Is B guys
Step-by-step explanation:
a 36 ft tree cast a shadow of 17ft. how long will the shadow be for a 22 ft tree?
Check the picture below.
help me solve this please
Answer:
x= -6
Step-by-step explanation:
First, you would write down the equation how it is shown first.
1) -x/3=2
Second, you would naturally multiply both sides by -3. To solve the equation, you need to use the inverse operation in the inverted order of PEMDAS. (Parentheses, exponent, multiplication, division, addition, and subtraction.)
2) -3(-x/3)=-3* 2
Lastly, you are going to reduce and simplify your new equation. This last step will achieve you your desired answer.
3) x= -6
6/3=2
Step-by-step explanation:
I know because 2×3=6 so 6/3 would have to equal 2.
(4,7) and (5,1) as an equation
Answer:
y = -6x + 31
Step-by-step explanation:
In order for us to make this an equation of the form y = mx + b we have to find the slope.
The formula for slope is rise/ run. The rise is 6 and the run is -1.
So, the slope is 6/-1 or -6.
Our equation is now: y = -6x + b
Substituting 4,7 into the equation we get 7 = -24 + b
So, b = 31.
To check out answers we substitute 5,1 in and it works.
hot air balloon is in the shape of a sphere .find the volume of a hot air balloon that is 32 ft in diameter
Answer:
Search Results
Sphere
Solve for volume
V≈17157.28
Step-by-step explanation:
A fountain launches a stream of water directly out of a pool at a vertical speed of 48 feet per second. The water shoots up and then falls back into the pool. The height, h, of the water at time t, in seconds, is given by the equation h = –16t 2 + 48t. The greatest height of the water above the pool is
Answer:
36 feet.
Step-by-step explanation:
h = -16t² + 48t .......... (1)
The above equation relates the height h, in feet of the water at time t, in seconds.
Now, condition for greatest height is [tex]\frac{dh}{dt} = 0[/tex] ......... (2)
So, differentiating equation (1) with respect to t we get, -32t + 48 = 0 {From condition (2).
⇒ t = 1.5 seconds
So, the greatest height is = -16 (1.5)² + 48 (1.5) = 36 feet. (Answer)
Which function represents the graph of y=10(4)x ? PLEASE HELP! :)
f
g
h
j
Answer:
The answer is g.
Step-by-step explanation:
Graph the line using the slope and y-intercept, or two points.
Slope: 40
y-intercept: 0
x : 0, 0
y : 0, 0
Hope this helps!
Answer:
Answer:
The answer is g.
Step-by-step explanation:
Graph the line using the slope and y-intercept, or two points.
Slope: 40
y-intercept: 0
x : 0, 0
y : 0, 0
Hope this helps
Step-by-step explanation:
This was tuff but i managed to get the answer ur welcome
Scientists have discovered a new substance with a hydrogen ion concentration of 0.095811180 M. Determine the corresponding pH level for this new substance. Round your final answer 3 decimal places
Answer: 1.018
Step-by-step explanation:
The pH level of a substance indicates the concentration of hydrogen ions ([tex]H^{+}[/tex]) in a solution and is calculated by:
[tex]pH=-log(H^{+})[/tex]
In this case the hydrogen ion concentration is [tex]0.095811180 M[/tex], where
[tex]M=\frac{moles}{volume}[/tex]. Hence:
[tex]pH=-log(0.095811180 M)[/tex]
[tex]pH=1.018[/tex] This means this new substance is acid
63. What is the equation in point-slope form
of the line through the points (10,3) and
(12, 11)? (MAFS.912.F-BF.1.1)
Answer:
y-3=4(x-10)
Step-by-step explanation:
Point Slope Form: y-y1=m(x-x1)
Where m=slope and (x1, y1) is a point on the line.
m=(y2-y1)/(x2-x1)=(11-3)/(12-10)=8/2=4
So the slope is 4,
y-3=4(x-10)
Factor completely : 35 + 5x
Answer: 5(7+x) because this is how you factor
24 tenths minus 1 one and 3 tenths?
Answer: " 1. 1 " ; or, write as: " 1 [tex]\frac{1}{10}[/tex] " .
________________________________________________
Step-by-step explanation:
________________________________________________
(24/10) - 1 3/10 =
2 4/10 - 1 3/10 =
2.4 - 1.3 =
_______________________
2. 4
- 1. 3
___________
?
______________________________
2. 4
- 1. 3
___________
1 . 1
______________________________
The answer is: " 1. 1 " ; or, write as: " 1 [tex]\frac{1}{10}[/tex] " .
_______________________________
Complete the solution of the equation. Find the
value of y when x equals 24.
-2x + 2y = -56
Answer:
For x = 24, y = -4.Step-by-step explanation:
[tex]Put\ x=24\ to\ the\ equation\ -2x+2y=-56,\ and\ solve\ it\ for\ y:\\\\-2(24)+2y=-56\\\\-48+2y=-56\qquad\text{add 48 to both sides}\\\\-48+48+2y=-56+48\\\\2y=-8\qquad\text{divide both sides by 2}\\\\\dfrac{2y}{2}=\dfrac{-8}{2}\\\\y=-4[/tex]
15 people gather for a hot dog eating contest. in the past, eight of these contestants have eaten 37 hot dog during the competition. three at 43, three ate 47 and one ate 49. what is the expected number of hot dogs eaten by a randomly chosen contestant today?
Answer:
41
Step-by-step explanation:
Given that 15 people gather for a hot dog eating contest. in the past, eight of these contestants have eaten 37 hot dog during the competition. three at 43, three ate 47 and one ate 49.
From the information given we prepare table as follows
No of hot dogs eaten X Frequency f X*f
37 8 296
43 3 129
47 3 141
49 1 49
Total 15 615
Expected value of X
= Mean value one person can take = [tex]\frac{615}{15} \\=41[/tex]
the expected number of hot dogs eaten by a randomly chosen contestant today is 41
A surveyed was conducted at Holy Spirit High school where 50 students were randomly
chosen and asked whether they liked apples or bananas. Of the 50, 36 students said they
like apples, 30 students like bananas and 5 students do not like either apples or bananas.
How many students like both apples and bananas?
Answer:
26
Step-by-step explanation:
50 students were asked, and only 5 said that they did not like apples or bananas.This means that 45 students like either apples or bananas, or both of them. We will call these 45 students, the group of "45".We also know that, between these 45 students there are 36 who like apples and 30 that like bananas. This imply that, 45-36=9 students do not like apples, and 45-30=15 students do not like bananas.Then, there are 15 students within the group of "45" that do not like bananas, and 9 students within the group of "45" that do not like apples. This means that 9+15=24 students within the group of "45" only like bananas or apples. The rest of them, 45-24= 26 like both apples and bananas.A survey of all beings on planet Tott found that 12 beings preferred
hab juice to all other juices. If 40 beings were surveyed altogether,
what percent of them preferred hab juice?
Answer:
4.8
12 x 40
100
= 4.8
Step-by-step explanation:
The percentage of beings that preferred hab juice, is 30% of beings preferring hab juice.
The question is asking to find the percentage of beings that preferred hab juice out of a total of 40 surveyed on planet Tott. To do this, we use the basic formula for percentage:
Percentage = (Part / Whole) * 100
In this case, 12 beings out of 40 preferred hab juice. So we have:
Percentage = (12 / 40) * 100 = 0.3 * 100 = 30%
Therefore, 30% of the beings surveyed preferred hab juice.
A book sold 39,200 copies in its first month of release. Suppose this represents 8.7% of the number of copies sold to date. How many copies have been sold to date?
Round your answer to the nearest whole number.
Answer: 450574.7126 which rounds up to 450575
Step-by-step explanation: Do cross multiplication
100 X
----- x ---------
8.7 39200
100 x 39200 = 3920000/ 8.7 = 450574.7
TO CHECK ANSWER
450574.7216 x 8.7% ( convert to decimal .087) = 39200
TO TRANSMIT INFORMATION ON THE INTERNET, LARGE FILES ARE BROKEN INTO PACKETS OF SMALLER SIZES. EACH PACKET HAS 1,500 BYTES OF INFORMATION. AN EQUATION RELATING PACKETS TO BYES OF INFORMATION IS GIVEN BY B=1,500P REPRESENTS THE NUMBER OF PACKETS AND B REPRESENT THE NUMBER OF BYTES OF INFORMATION.
A. HOW MANY PACKETS WOULD BE NEEDED TO TRANSMIT 30,000BYTES OF INFORMATION
B. HOW MUCH INFORMATION COULD BE TRANSMITTED IN 30,000 PACKETS
Answer:
A. It would be needed 20 packets to transmit 30,000 bytes of information.
B. 45'000,000 (45 million) of bytes could be transmitted in 30,000 packets.
Step-by-step explanation:
1. Let's review the data given to us for solving the question:
Size of each packet of information = 1,500 bytes
Number of packets = P
Number of bytes of information = B
2. Let's answer the questions:
A. How many packets would be needed to transmit 30,000 bytes of information?
P = 30,000 ÷ 1,500
P = 20
It would be needed 20 packets to transmit 30,000 bytes of information
B. How much information could be transmitted in 30,000 packets?
B = 30,000 * 1,500
B = 45'000,000
45'000,000 (45 million) of bytes could be transmitted in 30,000 packets.
three sister are getting new outfits. shirts cost 11 each,skirts coat 25 each and shows cost 44 a pair what is the total coast of the new outfits for all of the sisters
Answer:
240.
Step-by-step explanation:
Here is the correct question: Three sister are getting new outfits. shirts cost 11 each,skirts coat 25 each and shoes cost 44 a pair. what is the total cost of the new outfits for all of the sisters?
Given: Cost of each shirt is 11
Cost of each skirts coat is 25
Cost of each pair of shoes cost is 44.
Now, finding total cost of shirt, skirt coat and shoes as cost of one new outfit.
= [tex]11+25+44 = 80[/tex]
∴ Total cost of one new outfit is 80.
Next, finding cost of new outfit for all, three sisters.
Cost of new outfit for three sister = [tex]\textrm { cost of one outfit}\times \textrm{ number of sisters}[/tex]
∴ Cost of new outfit for three sister = [tex]80\times 3= 240[/tex]
240 is the total cost of new outfit for all the sisters.
The table shown below gives the approximate number of pieces of mail handled by the United States Postal Service for different years.
How many more pieces of mail were handled by the United States Postal Service in 1995 than in 1965?
Express your answer in scientific notation.
Answer:
Step-by-step explanation:
Answer:
1.08×10^11
Step-by-step explanation:
1.08 times 10 to the power of 11
Answer:
1.08×10^11
Step-by-step explanation:
I’m not sure how to graph linear equations on a graph. We are learning slope and linear equations and I’m so confused. Could someone help me understand or give a resource that will help me?
Answer:
Step-by-step explanation:
Desmos is a great online calculator, and when you put in a line, you can personalize it to the way you like it, making learning much easier, plus it gets your homework done quicker! the url is desmos . com
Robert's father is 4 times as old as Robert.After 5 years ,father will be three times as old as Robert. What is their present ages of Robert and his father respectively .
Answer:
Their present ages are:
Robert is 10 years old and his father is 40 years old.
Step-by-step explanation:
Let be "r" Robert's present age and "f" his father's present age.
Based on the information given in the exercise, you can set up the following system of equations:
[tex]\left \{ {{f=4r} \atop {f+5=3(r+5)}} \right.[/tex]
Use the Substitution Method and substitute the first equation into the second one and then solve for "r":
[tex]4r+5=3(r+5)}\\\\4r+5=3r+15\\\\4r-3r=15-5\\\\r=10[/tex]
Substitute the value of "r" into the first equation and evaluate:
[tex]f=4(10)\\\\f=40[/tex]
Nancy can type 240 words in 6 minutes. How many words can she type in 1 minute?
Answer:
The answer is 40
Step-by-step explanation:
Divide 240 by 6 and you'll get 40 as your answer
Answer:
She can type 40 words in 1 minute
Step-by-step explanation:
Just do 240/6 equals 40 so that means every 1 minute is 40 words 40 words times 6 minutes is 240 words
please help: i need to translate a phrase into a two step expression.
Five more than the product of 10 and Maliks height. Use m to represent Maliks height.
Answer: y = 10m + 5
Step-by-step explanation:
Let m be Malik's height , the product of 10 and Malik's height means 10 multiplied by Malik's height, which is 10 x m , which will be
10m.
5 more than the product of 10 and Malik's height means that a particular function is more than the product of 10 and his height by 5. Let that function be y , then
y = 10m + 5 is the expression
Find the average rate if change in the function f(x) = x^2 +2 over the interval x= -5 to x= -2
If f(x) = x^2 +2 and 5<= x <= -2 :
F(-5)=(-5)^2+2=25+2=27
F(-4)=(-4)^2+2=16+2=18
F(-3)=(-3)^2+2=9+2=11
F(-2)=(-2)^2+2=4+2=6
Average =
(27+18+11+6)/4
=62/4
=15.5
Hope this helps
Find the slope of the line that goes through the given points.
(7,2) and (5,2)
Answer: 0
Step-by-step explanation:
describes a horizontal line
so slope = 0
Answer:
0/2
Step-by-step explanation:
you have to subtract the x's and then then the y's, y is always on top. So, y=2-2/ x= 7-5 making 0/2 When the 0 is on the "top" of the fraction, that would mean that the two y-values are the same.
What is the image of (-9, -1) after a dilation by a scale factor of 2 centered at the
origin?
Answer:
(- 18, - 2 )
Step-by-step explanation:
Since the dilatation is centred at the origin then multiply each of the original coordinates by the scale factor for image, that is
(- 9, - 1 ) → (2 × - 9, 2 × - 1 ) → (- 18, - 2 )
Answer:
top is correct
Step-by-step explanation:
How do you use cos on the calculater in math
Answer:First make sure your calculator is on the right setting which would be a DEG. Then depending on the problem you would press COS, put whats needed inside the parentheses and close it.
Or if a different kind of problem you would press 2nd on the top of the calculator then Cos and continue the same way as the first one.
Step-by-step explanation: