Answer:
from 0 to 12 hours, that is [tex]0\leq x\leq 12[/tex]
Step-by-step explanation:
Notice that the x represents the number of phone hours used, therefore it has to be a number larger or equal zero, but NOT a negative number.
So on one end we have that the number of phone hours used (x) must be larger or equal zero: [tex]x\geq 0[/tex]
On the other hand, when the battery goes to zero, there are no more phone hours to use. We can find what is that other limit by making the battery percent (y variable) equal to zero, and solve the equation for x, thus giving us the upper limit of usable phone hours:
[tex]y=0=100-\frac{25}{3} x\\\frac{25}{3} x=100\\25 x = 100*3 = 300\\x = \frac{300}{25} = 12[/tex]
Therefore, the upper limit for the number of usable phone hours is 12 hours.
Then we write:
[tex]0\leq x\leq 12[/tex] hours
What is the next term of the geometric sequence. 135,45,15
Answer:
5
Step-by-step explanation:
Each term is 1/3 of the preceding term
135 / 3 = 45
45 / 3 = 15
15 / 3 = 5
Answer:
Keep dividing the number by 3.
The next number is 5.
Step-by-step explanation:
Amy usually swim 20 laps in 30 minutes what is her rate in laps per minute
Hey!
---------------------------------------
Solution and Answer:
Amy swam 30 laps in 20 minutes.
Rate = [tex]\frac{20 minutes}{30 laps} = \frac{2 minutes}{3 laps}[/tex]
---------------------------------------
Hope This Helped!
Please answer this correctly
Answer:
52:72
Explanation:
Because it's comparing the men to the TOTAL passengers. Not the women, that's trying to trick you.
Answer:
52:72
Step-by-step explanation:
because it said the male to total passengers
How do you solve this
Answer:
x=75 degrees because it is an isosceles triangle, and both 75 and x are equiangular.
Step-by-step explanation:
Check the picture below.
so we have two twin sides stemming from a common vertex, once they reach the base, they'd make up an angle, however, in an isosceles triangle, the twin sides always make twin angles at the base.
help answer a and part b
Answer:
The proportional relationships are used by showing ratios that can be simplified into 2:3.
Answer:
hbd
Step-by-step explanation:
fcvhk;mlsdhijksnmc3w
On Monday, 449 students went on a trip to the zoo. All 9 buses were filled and 8 students had to travel in cars. How many students were on each bus?
Answer:
Each bus could pick up 49 students
Step-by-step explanation:
(449-8):9=49
Answer:
Number of students on each bus = 49
Step-by-step explanation:
On Monday, 449 students went on a trip to the zoo. All 9 buses were filled and 8 students had to travel in cars.
Total number of students = 449.
Number of students traveled in car = 8
Number of students traveled in bus = 449 - Number of students traveled in car = 8
Number of students traveled in bus = 449 - 8 = 441
Number of buses = 9
Number of students traveled in bus = Number of buses x number of students on each bus
441 = 9 x number of students on each bus
Number of students on each bus = 49
B=kpx when solved for K is?
Answer:
k = B
px
Step-by-step explanation:
Divide both sides by px
Answer:
A
Step-by-step explanation:
what is the number whose 4/5 is 144?
Answer:
180
Step-by-step explanation:
Multiply 144 by the reciprocal of [tex]\frac{4}{5}[/tex], that is
The reciprocal of [tex]\frac{4}{5}[/tex] is [tex]\frac{1}{\frac{4}{5} }[/tex] = [tex]\frac{5}{4}[/tex], then
[tex]\frac{5}{4}[/tex] × 144 = [tex]\frac{5(144)}{4}[/tex] = 180
Which number is between 21 and 3π 2 ? A π + 1 B 14 3 C 5 D 26
The answer is D, 26. [tex]3\pi^2[/tex] is about 26.6!
Final answer:
The number that is between 21 and 3π/2 is 5.
Explanation:
To find the number that is between 21 and 3π/2, we need to determine the value of 3π/2 first. Since π is approximately 3.14, 3π/2 is approximately (3)(3.14)/2 = 4.71.
Now we can compare this value to 21. Since 4.71 is less than 21, we need to find a number that is greater than 4.71 but less than 21. The only option in the given choices that fits this criteria is Option C, 5.
18.
7. A baker's dozen (13) of cookies is on sale
for $4.94. What is the cost of an individual
cookie?
ya
Select all the points that are on the graph of the equation 4y - 6x = 12
a. (-4,-3)
b. (-1, 1.5)
c. (0, -2)
d. (0,3)
e. (3, 4)
f. (6,4)
Answer:
b. (-1, 1.5)
d. (0,3)
Step-by-step explanation:
we have
[tex]4y-6x=12[/tex]
we know that
If a ordered pair is on the graph of the linear equation, the the ordered pair must satisfy the linear equation
Verify each case
case a) we have
(-4,3)
substitute the value of x and the value of y in the equation
[tex]4(3)-6(-4)=12[/tex]
[tex]36=12[/tex] ----> is not true
The ordered pair not satisfy the equation
therefore
The ordered pair is not on the graph of the linear equation
case b) we have
(-1,1.5)
substitute the value of x and the value of y in the equation
[tex]4(1.5)-6(-1)=12[/tex]
[tex]12=12[/tex] ----> is true
The ordered pair satisfy the equation
therefore
The ordered pair is on the graph of the linear equation
case c) we have
(0,-2)
substitute the value of x and the value of y in the equation
[tex]4(-2)-6(0)=12[/tex]
[tex]-8=12[/tex] ----> is not true
The ordered pair not satisfy the equation
therefore
The ordered pair is not on the graph of the linear equation
case d) we have
(0,3)
substitute the value of x and the value of y in the equation
[tex]4(3)-6(0)=12[/tex]
[tex]12=12[/tex] ----> is true
The ordered pair satisfy the equation
therefore
The ordered pair is on the graph of the linear equation
case e) we have
(3,4)
substitute the value of x and the value of y in the equation
[tex]4(4)-6(3)=12[/tex]
[tex]-6=12[/tex] ----> is not true
The ordered pair not satisfy the equation
therefore
The ordered pair is not on the graph of the linear equation
case f) we have
(6,4)
substitute the value of x and the value of y in the equation
[tex]4(4)-6(6)=12[/tex]
[tex]-12=12[/tex] ----> is not true
The ordered pair not satisfy the equation
therefore
The ordered pair is not on the graph of the linear equation
The only points that a valid points on the graph of 4y - 6x = 12 are;
Option A; (-4,-3)
Option B; (-1, 1.5)
Option D; (0,3)
We are given the equation;
4y - 6x = 12
Let us make y the subject to get;
4y = 12 + 6x
y = (12 + 6x)/4
y = 3 + ³/₂x
Option A; at (-4, -3), let us put -4 for x to see if we will get y as -3;
y = 3 + ³/₂(-4)
y = 3 - 6
y = -3
Thus, (-4, -3) is a valid point
Option B; at (-1, 1.5)
y = 3 + ³/₂(-1)
y = 3 - 1.5
y = 1.5
Thus, (-1, 1.5) is a valid point
Option C; at (0, -2)
y = 3 + ³/₂(0)
y = 3
Thus, (0, -2) is not a valid point
Option D; at (0, 3)
y = 3 + ³/₂(0)
y = 3
Thus, (0, 3) is a valid point
Option E; At (3, 4)
y = 3 + ³/₂(3)
y = 3 + 4.5
y = 7.5
Thus; (3, 4) is not a valid point
Option F; At (6, 4)
y = 3 + ³/₂(6)
y = 3 + 9
y = 12
Thus, (6, 4) is not a valid point
In conclusion the only valid points are; (-4, -3), (-1, 1.5), (0, 3)
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Manuel spent a total of $40 at the grocery store. Of this amount, he spent $36 on fruit. What percentage of the total did he spend on fruit?
Final answer:
Manuel spent 90% of his total grocery expenses on fruit. To calculate this, the amount spent on fruit ($36) is divided by the total spent ($40), and then multiplied by 100%.
Explanation:
Manuel spent a total of $40 at the grocery store and out of that, $36 was spent on fruit. To find out the percentage that he spent on fruit, you can use the formula:
Percentage = (Amount spent on fruit / Total amount spent) x 100%
Plugging in the values gives us:
Percentage = ($36 / $40) x 100% = 0.9 x 100% = 90%.
Thus, Manuel spent 90% of his total grocery expenses on fruit.
t varies inversely as the square root of u.
t = 3 when u = 4.
Find t when u = 49.
Answer:
t = [tex]\frac{6}{7}[/tex]
Step-by-step explanation:
Given that t varies inversely as the square root of u then the equation relating them is
t = [tex]\frac{k}{\sqrt{u} }[/tex] ← k is the constant of variation
To find k use the condition t = 3 when u = 4, thus
k = t[tex]\sqrt{u}[/tex] = 3 × [tex]\sqrt{4}[/tex] = 3 × 2 = 6
t = [tex]\frac{6}{\sqrt{u} }[/tex] ← equation of variation
When u = 49, then
t = [tex]\frac{6}{\sqrt{49} }[/tex] = [tex]\frac{6}{7}[/tex]
The value of 't' when 'u = 49' in the equation [tex]'t = k/\sqrt(u)[/tex]' is approximately '0.86'. This was calculated using the concept of inverse variation in mathematics.
Explanation:The question is dealing with the concept of inverse variations in math. The given expression states that 't' varies inversely with the square root of 'u'. This can be represented mathematically as [tex]'t = k/\sqrt(u)',[/tex] where 'k' is the constant of variation.
From the problem we know that 't = 3' when 'u = 4'. Substituting these terms in into the equation above, we can solve for 'k'. Doing this yields [tex]'k = 3\times \sqrt(4) = 6.'[/tex]
Now that we have found 'k', we can find the value of 't' when 'u = 49'. We can do this by plugging in the known values into the equation. So [tex]'t = 6/\sqrt(49)'.[/tex] It simplifies to 't = 6/7' or about '0.86'.
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Help!!! Easy apparently? Right answers only!!
Answer:
It is A
Explanation:
Two points will always be collinear, but the same can't be said for three, since in some occasions one point is outside the line.
Which of the following expressions are equivalent? Please explain so I can understand.
Answer:
B and D
Step-by-step explanation:
Expression B = 1/[tex]x^{-1}[/tex] = 1/ (1/x) = x
Expression D = [tex]x^{1/3}[/tex] [tex]x^{1/3}[/tex] [tex]x^{1/3}[/tex]
= [tex]x^{1/3 + 1/3 + 1/3}[/tex]
= [tex]x^{1}[/tex]
= x
as shown above the both the value of B and D are equal to x and hence the expressions are equivalent
Which figure is a translation 1?
Figure
Answer:
Figure 4
because they both have same sizes
The figure 4 is translation of figure 1.
What is Transformation?Transformation is the process of changing the graph to a new graph by Rotation, Reflection, Translation, and Dilation.
The translation is a transformation in which the x and y coordinates are shifted of the object.
The only figure in which the transformation is translation of figure 1 is Figure 4.
To know more about Transformation
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fritz drew an array with 5 rows of dots . he drew 15 dots altogether. how many dots are in each row of fitz's array ? how do you know ?
There are 3 dots in each row of Fritz's array. This conclusion is reached by dividing the total number of dots (15) by the number of rows (5). This is an exercise in simple division and understanding arrays in mathematics.
Explanation:The subject of this question from Fritz is Mathematics, specifically, it's about arrays and simple division.
To find out how many dots are in each row of Fritz's array, we need to use division. In this case, the total number of dots (15) would be divided by the number of rows (5).
So, we calculate: 15 ÷ 5 = 3.
So, there are 3 dots in each row of Fritz's array. We know this is correct because the definition of an array in mathematics is a collection of objects or numbers arranged in rows, and each row has the same number of items.
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Students at a bake sale sell bags of cookies for $2.35 each and bags of miniature muffins for $1.75 each. While selling their baked goods, the students also received a $20 donation. The amount of money the students make from selling c bags of cookies and m bags of muffins can be modeled by the expression 2.35c + 1.75m + 20. Interpret the expression 2.35c + 1.75m in this context.
A
The expression 2.35c + 1.75m represents the money earned from selling c bags of cookies.
B
The expression 2.35c + 1.75m represents the money earned from selling m bags of muffins.
C
The expression 2.35c + 1.75m represents the money earned from selling c bags of cookies and m bags of muffins.
D
The expression 2.35c + 1.75m represents the money earned from selling one bag of cookies and one bag of muffins.
Answer:
Option C (The expression 2.35c + 1.75m represents the money earned from selling c bags of cookies and m bags of muffins).
Step-by-step explanation:
It is given that a bag of cookies is priced at $2.35 and a bag of muffin is priced at $1.75. It is also given that the student sells c bags of cookies and m bags of muffins. The total revenue earned by the student by selling c bag of cookies = $2.35 * c bags = $2.35c and the total revenue earned by the student by selling m bag of muffins = $1.75 * m bags = $1.75m. Therefore, the total revenue earned by the student by selling both cookies and muffins = 2.35c + 1.75m. This expression (2.35c + 1.75m) represents the money earned from selling c bags of cookies and m bags of muffins. Therefore, C is the correct choice!!!
Easy middle school number line plotting!! Please help!! Can you tell me if I plotted the ones right? And plot the 3.11
Answer:
3.11 is infinite so we would plot that 1 tick past 3 as the graph is going in increments of .50 and the square root of 7 is 2.64 which we would round to 2.7 (i could be wrong about rounding) soo in your case i would go with 2.6 which is 1 tick past 2.5
Step-by-step explanation:
its been a long time since ive done this and im currently in pre calc 11th grade math so if i got some of the wrong im very sorry :-(
Gail runs a taxi.
Her running costs are £75 per day.
She charges £1.90 per mile travelled.
On Tuesday she carried passengers for a total of 35 miles.
What was her total loss?
Answer:
8.5 £
Step-by-step explanation:
1.90 * 35
= 66.5 £
so,
75 - 66.5
= 8.5 £
Answer:
She lost £8.50
Step-by-step explanation:
£1.90 x 35 = £66.50 (how much she earned on Tuesday)
£75.00 - £66.50 = £8.50
Each floor in the old headquarters of Oldham Bank and Trust is 14 feet in
height except the ground floor, which is 24 feet high. There are 5 floors. How
tall is the building?
To find the total height of the building, we need to calculate the sum of the heights of all the floors.
Height of the ground floor = 24 feet
Height of each floor (except ground floor) = 17 feet
Number of floors (excluding ground floor) = 7 - 1 = 6
Total height of the building = Height of the ground floor + (Height of each floor * Number of floors)
Total height of the building = 24 + (17 * 6)
Total height of the building = 24 + 102
Total height of the building = 126 feet
Therefore, the building is 126 feet tall.
Write the value of the underlined digit 7,270
I am sorry but I do not see the underlined digit, but I will put it this way. 7 in the thousands place is worth 7000, 2 in the hundreds place is worth 200, 7 in the tens place is worth 70, and 0 in the ones place is worth 0.
Hope this helped!
Nate
What is 8363 x 9374)?
Answer:7,836,664
Step-by-step explanation:I used a calculator
Answer:
Step-by-step explanation: 36,211,762
What is the answer to M- 7 =1?
Answer:
m=8
Step-by-step explanation:
m-7=1
+7 +7
m=8
Find the value of h(-7) for the function below.
h(x) = 5.7 −19x
A.
-127.3
B.
138.7
C.
0.67
D.
-138.7
Answer:
B. 138.7
Step-by-step explanation:
Put the given number where the variable is and do the arithmetic.
h(x) = 5.7 -19x
h(-7) = 5.7 -19(-7) = 5.7 +133 = 138.7
The answer is down below hopes this helps have a great day!!!
Write x = 1/4 y + 2 in slope intercept form.
Imma give extra points!! Bc im nice c:
98 points
Answer:
y = 4x - 8
Step-by-step explanation:
x = 1/4y + 2
-1/4y -1/4y
-1/4y + x = 2
-x -x
-1/4y= -x + 2
*-4 *-4
y = 4x - 8
Hey!
------------------------------------------------
Solution:
~Subtract x to both sides
x - x = 1/4y + 2 + (-x)
~Simplify
1/4y = 2 + (-x)
~Multiply 4 to both sides
1/4y * 4 = 2 + (-x) * 4
~Simplify
y = 8 - 4x
~Switch
y = 4x - 8
------------------------------------------------
Answer:
[tex]\large\boxed{y~=~4x~-~8}[/tex]
------------------------------------------------
Hope This Helped! Good Luck!
The explicit rule for an arithmetic sequence is an=20/3+1/3(n-1). What is the value of the 89th term?
[tex]\bf a_n=\cfrac{20}{3}+\cfrac{1}{3}(n-1) \\\\[-0.35em] ~\dotfill\\\\ \stackrel{89^{th}~term~\hfill }{a_{89}=\cfrac{20}{3}+\cfrac{1}{3}(89-1)}\implies a_{89}=\cfrac{20}{3}+\cfrac{1}{3}(88)\implies a_{89}=\cfrac{20}{3}+\cfrac{88}{3} \\\\\\ a_{89}=\cfrac{20+88}{3}\implies a_{89}=\cfrac{108}{3}\implies a_{89}=36[/tex]
Answer:
B
Step-by-step explanation:
Just did it
Plz help which one is larger
3/4 is greater than 7/10.
Find the least common denominator or LCM of the two denominators:
LCM of 4 and 10 is 20
For the 1st fraction, since 4 × 5 = 20,
3 /4=
3 × 5
4 × 5 =
15 /20
Likewise, for the 2nd fraction, since 10 × 2 = 20,
7 /10 =
7 × 2
10 × 2 =
14 /20
Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
15 /20 > 14 /20 or 3 /4 > 7 /10
Answer:
3/4 is larger
Step-by-step explanation:
The common denominator is 40
multiply
30/40 and 28/40
30/40 is larger, simplify 3/4 is bigger than 7/10
Help last question!!!
Answer:
yes the ratio of the area of a new rectangle is equivalent to the ratio of side lengths of a new ratio
Step-by-step explanation:
Given the function f(x) = 3x + 1 and the linear function g(x), which function has a greater value when x = 3?
graph of line g of x equals 4 times x minus 5
f(x) is greater.
g(x) is greater.
f(x) and g(x) are the same when x = 3.
g(x) is undefined when x = 3.
Answer:
f(x) is greater
Step-by-step explanation:
The function that has a greater value when x = 3 is: A. f(x) is greater.
What is a linear function?In Mathematics and Geometry, a linear function refers to a type of function whose equation is graphically represented by a straight line on the xy-plane or cartesian coordinate.
Based on the information provided, we can logically deduce the following linear functions;
f(x) = 3x + 1
g(x) = 4x - 5
When x is equal to 3, we have:
f(x) = 3x + 1
f(3) = 3(3) + 1
f(3) = 10
g(x) = 4x - 5
g(3) = 4(3) - 5
g(3) = 7.
Therefore, f(x) is greater.
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