Answer:
20 students do NOT prefer math over lunch.
Step-by-step explanation:
Hello, great question. These types are questions are the beginning steps for learning more advanced Algebraic Equations.
If nine out of ten students ([tex]\frac{9}{10}[/tex]) prefer math class over lunch, then we can infer that one out of ten students ([tex]\frac{1}{10}[/tex]) do not.
[tex]\frac{1}{10} = 0.10[/tex] or 10%
As we can see, this equals a 10% of the students that were asked. If 200 students were asked, we would need to find what 10% of 200 would be. We can do this by multiplying 200 by the decimal form of 10% like so,
[tex]200 * 0.10 = 20 students[/tex]
So we can see that 20 students do NOT prefer math over lunch.
I hope this answered your question. If you have any more questions feel free to ask away at Brainly.
If 5 students had to share 7 brownies, how much would each student get?
A line segment has the endpoints (2,-5)and(-1,-1). What is it’s slope?
A. -6/1
B. -3/4
C. -1/6
D. -4/3
The slope formula:
[tex]m=\dfrac{y_2-y_1}{x_2-x_1}[/tex]
We have:
[tex](2,\ -5)\to x_1=2,\ y_1=-5\\(-1,\ -1)\to x_2=-1,\ y_2=-1[/tex]
Substitute:
[tex]m=\dfrac{-1-(-5)}{-1-2}=\dfrac{-1+5}{-3}=\dfrac{4}{-3}=-\dfrac{4}{3}[/tex]
Answer: D.At 7am last night, the temperature was 10°F. At 7am the next morning, the temperature was -2°F. By how much did the temperature change from 7pm to 7am?
The temperature decreased by 12°F from 7pm to 7am.
Explanation:The temperature change from 7pm to 7am can be calculated by finding the difference between the temperatures at those times. At 7am last night, the temperature was 10°F.
At 7am the next morning, the temperature was -2°F. To find the temperature change, subtract the initial temperature from the final temperature: -2°F - 10°F = -12°F. Therefore, the temperature decreased by 12°F from 7pm to 7am.
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The cost of a book is 90.5 and the tax is 4% what is the new cost
answer: $94.12
work:
let's start by finding the tax.
step one: convert the percentage into a decimal by dividing it by 100.
4 / 100 = 0.04
next, multiply your total by the tax
$90.5 x 0.04 = 3.62.
next, add the tax to the original price to see your new total.
$90.5 + $3.62 = $94.12
so, your total with tax would be $94.12.
i hope this helps, and have a great day! don't hesitate to ask if you need more help with this specific question! ♥ - eviezoom
Solve the following equation |x+8|=2x-3
[tex]2x-3\geq0\\2x\geq3\\x\geq\dfrac{3}{2}\\\\|x+8|=2x-3\\\\x+8=2x-3 \vee x+8=-2x+3\\\\x=11 \vee 3x=-5\\\\x=11 \vee x=-\dfrac{5}{3}\\\\-\dfrac{5}{3}\not \geq \dfrac{3}{2}\\\\\boxed{x=11}[/tex]
ANSWER FAST PLEASE Which is a reasonable first step that can be used to solve the equation 4x+3(x+2)=5(2x-3)
The answer would be A) Distribute
And solving it would leave you with x = 7
The answer is A)Distribute the 3 to x + 2, and distribute the 5 to (2x - 3). because it expands the equation and makes it easier to solve further.
Monica is mixing some custom colored paint for her house. The color she wants requires 3/4 ounces of blue dye and 2/3 of an ounce of pink dye mixed with each gallon of white paint base. How much dye is needed to mix 8 gallons of paint?
A. 11 5/7
B. 11 2/3
C. 11 1/3
D. 11 2/3
Amount of blue dye mixed with one gallon of white paint=[tex]\frac{3}{4}[/tex]
Amount needed for 8 gallons = [tex]\frac{3}{4}\times8=6[/tex] ounce
Amount of pink dye mixed with one gallon of white paint=[tex]\frac{2}{3}[/tex]
Amount needed for 8 gallons = [tex]\frac{2}{3}\times8= \frac{16}{3}[/tex] ounces
So, total dye required =[tex]6+\frac{16}{3}=\frac{18+16}{3}=\frac{34}{3}[/tex]
or
[tex]11\frac{1}{3}[/tex] ounces.
Hence, option C is correct.
NOW THIS IS easy but if u don't wanna help ig it's fine
Givens
Let C = number of caterpillars.
Let L = legs on each.
Let T = total number of legs.
Formula
T = C*L
a quarter is 1.75 millimeters thick. how high is a stack of 1000 quarters?
Thickness of 1 quarter = 1.75 mm
So, 1000 quarters will be = [tex]1000\times1.75[/tex]
= 1750 mm
So, a stack of 1000 quarters will be 1750 mm high.
To find the height of a stack of 1000 quarters, multiply the thickness of one quarter by the number of quarters in the stack and convert the result to meters.
To find the height of a stack of 1000 quarters:
Calculate the total thickness of 1000 quarters: 1.75mm x 1000 = 1750mm = 1.75m
1 meter = 1000 millimeters, so the height of a stack of 1000 quarters would be 1.75 meters.
kim made two pies that were excatly the same size. the first pie was a cherry pie, which she cut into 6 equal slices. the second pie was a pumpkin pie,which she cut into 12 equal slice. kim takes her pies to a party. people eat 3 slices of cherry pie and 6 slices of pumpkin pie. did people eat more cherry pie or punpkin pie?
Neither. It’s equal.
6 cherry = 12 pumkin
Ratio is 1c : 2p
3 cherry = 6 pumkin so they ate the same amount.
Pears cost $0.92 per pound and apples cost $1.10 per pound. Mr. Bonilla bought 3.75 pounds of pears and 2.1 pounds of apples How much did he pay for the pears and apples?
Which size container of cold farm ice cream is the better deal for Sheldon? Explain.
Cold Farms:
Small box
1 pint = $2.50
1 quart = $4.50
Large Box
1 quart = 2 pints .
2 pints = $4.50
1 pint = $4.50 / 2 = $2.25
Cone Dreams:
Small box
1 quart = $4.25 and
1 pint = $4.25/2 = $ 2.125
Large Box
1 gallon = $9.50.
1 gallon = 8 pints
8 pints = $9.50.
1 pint = $9.50 / 8 = $ 1.1875.
Answer:
The larger size of the cold farm ice cream is the better deal . To get the equivalent volume of the small size to the large size , one needs to spend $2.5 + $2.5 = $5.0 where as for the larger size you will only spend $ 4.5.
Step-by-step explanation:
The price for cold farm ice cream for the small size is $2.5 for 1 pint and for the larger size it is $4.5 for 1 quarts. Sheldon wants to know the better deal for the size container of cold farm ice cream.
Firstly, the prices are in different volume unit we need to convert them to the same units.
1 pints = 0.5 quarts
That means small size of cold farm ice cream is $ 2.5 for 0.5 quart and larger size is $ 4.5 for 1 quart.
Small size
$2.5 for 0.5 quart
$5.0 for 1 quart
Larger size
$ 4.5 for 1 quart
The larger size of the cold farm ice cream is the better deal . To get the equivalent volume of larger size , one needs to spend $2.5 + $2.5 = $5.0 where as for the larger size you will only spend $ 4.5.
I need help with this math problem pls help me
3(4x - 2) = 30
12x - 6 = 30 distributed 3 on the left side
+6 +6
12x = 36
[tex]\frac{12x}{12} = \frac{36}{12}[/tex]
x = 3
Answer: x = 3
the length of a rectangular pen is 5 more than its width. The perimeter is 26 meters. Find the length and width.
PLEAS HELP I WILL MARK YOU BRAINLYEST!!
What is the missing value in the table of equivalent ratios?
1 4
2 8
4 16
6 24
8 ?
A. 22
B. 28
C. 32
D. 40
Hi the answer is d 40 i hope this helps,
4+4 is 8
8+8 is 16
12+16 is 24
So 16+24 is 40
The answer is C. 32. As you can see, the first variable is multiplied by the second variable of the table. Thus, you would have to multiply 8 and 4. Which would give you the answer of 32.
The volume of a square is V equals S to the fourth. The side of a square is 4X to the third, what is the volume of the square
note a square is a 2 dimensional figure and so cannot have volume.
However, the 3 dimensional solid you may mean is a cube and the volume of a cube is
V = s³ ( where s is the length of the side )
here s = 4x, hence
V = (4x)³ = 64x³
the product of two numbers is 814. the sum is 59. whats the difference of these two numbers
A copier printS 89 copies in one minute .How long does it take the copier to print 1,858 copies
Answer: 20.87/21 minutes
Step-by-step explanation: 1858/2 = 20.8764044944
2 x 20.8764044944 = 1858
It takes approximately 21 minutes for the copier to print 1,858 copies, given that the copier prints at a rate of 89 copies per minute.
To determine how long it takes for the copier to print 1,858 copies, we can set up a proportion since we know the rate at which the copier prints is 89 copies per minute. We calculate the time it would take by dividing the total number of copies needed by the number of copies the machine can print per minute:
Time (in minutes) = Total Copies ÷ Rate
Time (in minutes) = 1,858 copies ÷ 89 copies per minute
After performing the division, we find that:
Time (in minutes) = 20.8764 minutes
Since we generally measure time in whole minutes when it comes to using office equipment, we can round this to the nearest whole number, thus giving us approximately 21 minutes to complete the printing task.
What’s 4x-7=13 in simplest form
First person to ask gets brainliest
Answer:
X = 3 because simplified it would be 2x=6Answer:
X = 5
Step-by-step explanation:
Step 1: Add 7 to both sides.
4x − 7 + 7 = 13 + 7
4x = 20
Step 2: Divide both sides by 4.
4x/4 = 20/4
X = 5
Hope this helps :-)
HELP ME ASAP!!!! PLEASE!!!!
99 and division and multiplication.
how do you do 7x14 an in expanded form how❓
I believe it would be seven multiplied by fourteen.
Vector has 4 orange picks for every three green picks. If 8 of the picks are orange, how many picks are green?
The answer is 6.
If we know that you get 3 greens for every 4 oranges then all we need to do is extrapolate.
The ratio of orange picks to green picks is 4:3. Given 8 orange picks, we use a proportion to find that there are 6 green picks. Therefore, there are 6 green picks.
To solve this, set up a proportion:
4 orange picks / 3 green picks = 8 orange picks / x green picksCross-multiply to find the value of x:
4 × x = 3 × 84x = 24Divide both sides by 4:
x = 6Therefore, there are 6 green picks.
Hence, if there are 8 orange picks, then there are 6 green picks.
What is the solution to the inequality? 17 < 9 + x
17 < 9 + x Subtract 9 from both sides.
17 - 9 < 9 - 9 + x
8 < x
Be very careful that you leave the open end of the less than symbol pointing towards the x It means that x is greater than 8.
You could write it the other way x > 8 but the pointy end must always be closest to the 7 which is another way of saying what the answer means.
Notice anything after the 8 going right is colored and it is the answer.
I'm stuck on another question 5 4/5 + (-3 2/7)
So that would be the same thing as 5 4/5 - 3 2/7
Put them in mixed fractions to become 29/5 - 23/7
Multiply one side by 7 and one side by 5 to get the same denominator
203/35 - 115/35
Now subtract the numerators to get
88/35
Or if they want it inixed numbers then 2 18/35
54/5 - 32/ 7
=(378 -160)/ 35
=218/35
The volume of a spherical tank is 790.272 pie cubic feet what is the diameter of the container
Answer:
The diameter is 13.88 feet.
Step-by-step explanation:
1. The formula for calculate the volume of a sphere is:
[tex]V=\frac{3}{4}(r^{3}\pi)[/tex]
Where [tex]r[/tex] is the radius.
2. The diameter is:
[tex]D=2r[/tex]
3. So, you must solve for the radius in the first equation:
[tex]r=\sqrt[3]{\frac{4V}{3\pi}}[/tex]
[tex]r=\sqrt[3]{\frac{4(790.272ft^{3} )}{3\pi}}\\r=6.94ft[/tex]
4. Then, the diameter is:
[tex]D=2(6.94ft)\\D=13.88ft[/tex]
If the sales tax is 8% . What is the total cost of a $55 pair of shoes
$50.60 do you need to know how
Find the values of X and Y
Answer:
From the image we have,
[tex](11x-6)^{\circ}[/tex] and [tex](13y-14)^{\circ}[/tex] are linear pairs.
Linear Pair Theorem: If two angles form a linear pair, then they are supplementary.
therefore, by above theorem we have,
[tex]11x-6+13y-14=180^{\circ}[/tex]
simplify:
[tex]11x+13y=200^{\circ}[/tex]
Since, we can seen from the image we have, [tex]15x-8=90^{\circ}[/tex]
[tex]15x=98^{\circ}[/tex]
therefore, [tex]x=6.534^{\circ}[/tex]
Now, putting the value of x in equation [tex]11x+13y=200^{\circ}[/tex] to find for y:
[tex]11\cdot 6.534+13y=200^{\circ}[/tex]
[tex]71.8667+13y=200^{\circ}[/tex]
[tex]13y=200-71.867=128.134^{\circ}[/tex]
Therefore the values of [tex]x=6.534^{\circ}[/tex] and [tex]y=128.134^{\circ}[/tex]
Add 5/9+7/9 . Simplify the answer and write a mixed number
Hello there!
First you had to solving by the fractions parts.
[tex]\frac{5}{9}+\frac{7}{9}=\frac{12}{9}[/tex]
Then you reducing by the fraction parts of 12/9.
[tex]\frac{12}{9}=\frac{4}{3}[/tex]
And finally, you simplify by the fraction parts of 4/3.
[tex]\frac{4}{3}=1 \frac{1}{3}[/tex]
Solution by Formulas
Applying the fractions formula for addiction.
[tex]\frac{(5*9)+(7*9)}{9*9}[/tex]
[tex]\frac{45+63}{81}[/tex]
[tex]=\frac{108}{81}[/tex]
Simplifying 108/81 and the answer is
[tex]=1 \frac{1}{3}[/tex]
Hope this helps!
Thank you for posting your question at here on Brainly.
-Charlie
The sum of 5/9 and 7/9 expressed as a mixed fraction is [tex] 1 \frac{1}{3}[/tex]
L.C.M of the denominator is 9
Now we have ;
5/9 + 7/9 = (5 + 7)/9 = 12/9
Rewriting as a mixed fraction :
12/9 = [tex] 1 \frac{1}{3}[/tex]
Therefore, the sum of the fractions expressed as a mixed fraction is [tex] 1 \frac{1}{3}[/tex]
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which equation is the inverse of y=7x^2-10
y = 7x^2 - 10
Switch y and x.
x = 7y^2 - 10
Solve for y.
Add 10 to both sides.
x + 10 = 7y^2
Divide both sides by 7.
(x + 10)/7 = y^2
√ both sides.
√(x + 10)/7 = y
Replace y with f^-1(x)
f^-1(x) = √(x + 10)/7In Microsoft Excel, you have data that has been entered into cell A1. You need a function that looks up this value from A1 in a table of values in E1 through F10. You need to have the value from the second column (F) be displayed in the cell in which you are writing this formula. Also, A1 will precisely match one of the values in the first column (E). What formula would you write to look up this information?
I'm going to assume that there is something in A1 but the way you are describing the problem, you could just as easily write a constant in the formula you are using in cells E1 to E10 and F1 to F10
The trick is to refer to A1 as $A$1 which means that E1 to E10 isn't going to get creative and start looking for things in a1 to a10.
Here is an actual table made from what I think you mean
1 113 114
2 114 116
3 115 118
4 116 120
5 117 122
6 118 124
7 119 126
8 120 128
9 121 130
10 122 132
1 to 10 on the left is in column D
A1 contains 112
In column E the enteries from 1 to 10 simply take = $A$1 + d1
Column F uses $A$1 and adds 2*d to 112
Here is the chart shown in formula form.
1 =D1+$A$1 =$A$1 + 2*D1
2 =D2+$A$1 =$A$1 + 2*D2
3 =D3+$A$1 =$A$1 + 2*D3
4 =D4+$A$1 =$A$1 + 2*D4
5 =D5+$A$1 =$A$1 + 2*D5
6 =D6+$A$1 =$A$1 + 2*D6
7 =D7+$A$1 =$A$1 + 2*D7
8 =D8+$A$1 =$A$1 + 2*D8
9 =D9+$A$1 =$A$1 + 2*D9
10 =D10+$A$1 =$A$1 + 2*D10
Remember that 1 to 10 is in d1 to d10
To look up a value from A1 in a table (E1:F10) and display the corresponding value from column F, use the formula =VLOOKUP(A1, E1:F10, 2, FALSE) in the desired output cell.
To look up the value in cell A1 from a table in E1 through F10 and return the value from the second column (F), you would use the VLOOKUP function. The appropriate formula to enter into the cell where you want to display the result would be =VLOOKUP(A1, E1:F10, 2, FALSE). This formula begins with an equal sign, as all Excel formulas do, and instructs Excel to find the value in cell A1 within the first column of the range E1:F10 and return the corresponding value from the second column of that range. The FALSE argument specifies that you want an exact match.