Answer:
18/2.5 = 7.2
Step-by-step explanation:
Since there are 18 gallons at the beginning of the trip you divide by 2.5 to find out how much gas is left after each hour.
Calculate the mean of the electric bills for Family A. Round your answer to the nearest cent.
Month | Family A | Family C
January | $88.82 | $134.51
February | $84.80 | $118.06
March | $62.35 | $109.28
April | $65.17 | $90.15
May | $60.20 | $91.20
June | $74.86 | $96.36
July | $92.15 | $130.71
August | $99.89 | $129.16
September | $96.45 | $107.77
October | $81.63 | $100.95
November | $64.12 | $107.64
December | $72.58 | $123.82
Answer:
The mean for Family A=78.585 , ≈78.59
Step-by-step explanation:
I solved this with a TI-84 CE calculator. To do this you press stat-edit-put in the numbers-2nd+mode-stat-right arrow key-calc-1_Var_Stats-Calculate. Then X with the _ over it would be your mean.
Plot the data points into the calculator. Resize the window to fit the data and use the power regression function.
What is the power regression equation for these data points? Round to the nearest hundredth.
A )y = 71. 59x0. 49
B) y = 72. 49x0. 50
C) y = 73. 48x0. 51
D) y = 72. 34x0. 50
Answer:
y = 72.49x0.50
Step-by-step explanation:
Andrea bough a bucket of colored chalk. The list below shows the fraction of each color of chalk in the bucket. 2/6 are yellow, 5/12 are blue, and 3/12 are green. Andrea told Michelle that less than 1/2 the chalk in the bucket is blue. Michelle said she is mistaken. Who is correct? Explain why you chose your answer.
Given the fraction of each colored chalk, Andrea is right that less than 1/2 the chalk in the bucket is blue.
How to solve fractions?Yellow = 2/6Blue = 5/12Green = 3/12Total = 2/6 + 5/12 + 3/12
= (4+5+3) / 12
= 12/12
= 1
Fraction of blue : Total chalk
= 5/12 : 1
Blue = 5/12 ÷ 1
= 5/12 × 1/1
= 5/12
= 0.42
So,
1/2 = 0.5
Therefore, Andrea is right that less than 1/2 the chalk in the bucket is blue.
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A rectangular rug has side lengths of (x- 2) feet
space does it cover?
and (x + 3) feet. How much floor space does it cover
Hi!
Your answer is [tex]x^2+x+6[/tex]
We are asked to find the floor space it covers, which we can solve for by finding the area of the rectangular rug, given its dimensions.
Dimensions:
(x - 2) x (x + 3)
Area of a rectangle:
Length x Width = Area
Plug dimensions into the formula:
[tex](x - 2)(x +3)[/tex]
Use the Distributive Property and FOIL method to solve (if you are not familiar with the FOIL method, see the image attached below):
[tex]x^2+3x-2x-6[/tex]
Combine like terms:
[tex]x^2+x-6[/tex]
Now, this isn't a numerical value, but as we do not know the value of x, this is the simplest answer we can get.
pls help me wirh this
Answer:
They will have 3 dollars left because they can buy 46 cartons. 46 cartons costs $184 dollars so 3 dollars left over from the budget
Step-by-step explanation:
2(x -9) = 9 divided ( - 1/3) what value of x makes the equation true
plsss help :)))
Answer:
x = -9/2
Step-by-step explanation:
1. Divide 9 by -1/3:
[tex]\frac{9}{1}[/tex] ÷ [tex]-\frac{1}{3}[/tex] = [tex]\frac{9}{1}[/tex] · [tex]-\frac{3}{1}[/tex]
= -27
2. Divide both sides by 2:
2(x - 9) = -27
[tex]\frac{2(x-9)}{2} = \frac{-27}{2}[/tex]
(x - 9) = [tex]-\frac{27}{2}[/tex]
3. Add 9 to both sides:
x = [tex]-\frac{9}{2}[/tex]
(or 4.5 if you need it in decimal form)
hope this helps!
Find the volume.
10 km
8 km
4 km
6 km
Answer:
1920
Step-by-step explanation:
10 x 8 = 80
80 x 4 = 320
320 x 6 = 1920
how many square feet of outdoor carpet will we need for this hole? 4ft 12ft 8ft 3ft
Answer:
56ft
Step-by-step explanation:
first you need to break the shape u so 1 rectangle and 2 triangles so first we need to find the area of the rectangle
Area of rectangle= w x h so 5* 8= 40
Area of triangle = .5 x b x h so 4 x 4 x .5 = 8 and since we have 2 double that and you get 16 so then you need to add it all up and u get the answer 56
plug in 3 for the equation y=-x^2+12x-20
Step-by-step explanation:
y=(-x^2)+12x-20
=(-(3)^2)+12(3)-20
=(-9)+36-20
=16-9=7
y=7
I hope it helped you
can anyone help me with this? no links
Answer:
Step-by-step explanation:
as you see the top "moves" like
2,4,6,8, and next will be 10
the bottom adds 3 to the previos answer
5,8,11,14, next will be 15
5th card is 10/15
A circle has a diameter of 12 ft. What is the length of an arc intercepted by a 60° central angle?
Answer: It's 6.28319 feet
Step-by-step explanation:
A circle has a radius if 20 centimeters and a central angle that measures 118 degrees. Find the length of the arc defined by thus central angle
[tex]\textit{arc's length}\\\\ s=\cfrac{\theta \pi r}{180}~~ \begin{cases} r=radius\\ \theta =\stackrel{degrees}{angle}\\[-0.5em] \hrulefill\\ r=20\\ \theta =118 \end{cases}\implies \begin{array}{llll} s=\cfrac{(118)\pi (20)}{180}\implies s=\cfrac{118\pi }{9} \\\\\\ s\approx 41.19~cm \end{array}[/tex]
The force-extension data for a spring are recorded in the graph below. Assuming force is measured in newtons and
extension in meters, what is the spring constant for this spring?
∆ F/ ∆e = K
(5.4-2.1)/(1.8-0.7)= K
3.3/1.1 = K
K = 3
Are the ratios 7:9 and 3:6 equivalent?
Answer: No
Step-by-step explanation:
What is the multiplication problem that means the same thing as the division problem 1/9 divided by 12?
1/9 x 12
1/9 x 1/12
9/1 x 12
1/12 x 108
Answer:
B
Step-by-step explanation:
We must find the reciprocal of 12, which is 1/12. This means 1/9 divided by 12 is 1/9 times 1/12.
Point A is located at (-3, 0) and is rotated 90°. What are the coordinates of point A'?
(-3, 0)
(0, -3)
(3, 0)
(0, 3)
Answer:
(0,-3)
Step-by-step explanation:
Rotating a point 90° from the second quadrant to the third on a (x,y) graph follows the transformation,
(x,y) → (-x,y)
At store A a pair of shoes is
on sale for 25% off the
regular price of $30. At store
B the same pair of shoes is
on sale for 20% off the
regular price of $28. What is
the difference between the
sales price of the two stores?
Answer:
the.answer is a a pair of shoes is on sale for 25% off the regular 30 at the store
What is the y-coordinate of point D after a translation of (x, y) → (x + 6, y – 4)?
Translating the triangle DEF involves moving the triangle along the coordinate plane
The y-coordinate of point D after the translation (x, y) → (x + 6, y – 4) is 1
How to determine the y-coordinate of D'?From the figure the coordinate of D is:
D = (-2.5,5)
The rule of translation is given as:
(x, y) → (x + 6, y – 4)
So, we have:
(x, y) → (-2.5 + 6, 5 – 4)
Evaluate the sum and the difference
(x, y) → (3.5, 1)
Remove the x-coordinate
y → 1
Hence, the y-coordinate of point D after the translation is 1
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Which best explains whether a triangle with side lengths 2 in., 5 in., and 4 in. is an acute triangle?
The triangle is acute because 22 + 52 > 42.
The triangle is acute because 2 + 4 > 5.
The triangle is not acute because 22 + 42 < 52.
The triangle is not acute because 22 < 42 + 52.
Answer:
The second one. (The triangle is not acute because 2+4>5)
Step-by-step explanation:
If you try to make the triangle, one angle would be obtuse so it's not acute.
Pls give brainly, im trying to get the most possible :>
when he saw 9 customers walk in. He already had 31 wings cooked, but started cooking 32 more. The customers bought all the wings and split them equally. How many wings did each person get?
Answer:
7
Step-by-step explanation:
31 Wings (already cooked)
+ 32 Wings (started cooking)
= 63 Wings total
divided by 9 customers
= 7 per person
A circle with two chords is shown below in the figure. Find the value of x.
X
8
x+12
12
X =
A circle with two chords is given with length X, 8, x-12, 12. Thus, The value of x is 24.
What is the relation between line perpendicular to chord from the center of circle?If the considered circle has center O and chord AB, then if there is perpendicular from O to AB at point C, then that point C is bisecting(dividing in two equal parts) the line segment AB.
Or
|AC| = |CB|
Using the theorem of intersecting chords
[tex]12x =8(x-12)\\\\12x = 8x - 96\\\\12x - 8x = 96\\\\4x = 96\\\\x = 24[/tex]
The value of x is 24.
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Students in biology class are learning about the monarch butterfly’s life cycle. Each student is given a caterpillar. When a caterpillar turns into a chrysalis, it is placed in a glass enclosed with food and a heat lamp and examined.
A. Determine whether the situation describes a survey, an experiment or an observational study.
B. identify the sample, and suggest a population from which it was selected.
Answer: observational study
Step-by-step explanation:
i think its a observational study because they are learning about somthing and to learn about it you have to study and they are given a specemin to observe to that they can study it as it grows therfore why i think the answer is C. Observational study.
A balloon rises to 100 feet in 4 minutes and 125 feet in 5 minutes. Write and solve an equation to find the distance the balloon rises in 8 minutes. Use d for distance and m for minutes. Write the equation and the answer separated by a semi-colon. Included the unit in your answer. For example, d = 5m; 35 feet
Answer:
A proportion is the name we give to a statement in which 2 ratios are equal. Proportions are built off of ratios. It is usually written in one of 2 ways
Step-by-step explanation:
Answer:
there are two different ways it can go up but it will be a ratio amount of air in the
4. The figure below shows three small circles, each with a diameter of 6 centimeters, inside a larger
circle.
.6.cm ....6.cm ..Y. 6 cm
What is the approximate area of the shaded part of the figure? Use 3.14 for .
A. 169.56 square centimeters
B. 678.24 square centimeters
C. 254.34 square centimeters
D. 226.08 square centimeters
Answer: A
Step-by-step explanation:
Write your own equation in slope-intercept form and graph.
Answer:
No se
Step-by-step explanation
Espero Averte Ayudado:
The profit (p) a baker earned, in dollars, is proportional to the number of muffins (m) sold. This equation represents this relationship.
P = 0.75m
enter the profit earned for each muffin sold.
P = 0.75m represents the proportional relationship, therefore, the profit earned for each muffin sold is: $0.75.
What is Proportional Relationship?If two variables, i.e. P and m are directly proportional to each other, the relationship between them can be represented as P = km, where k is the constant.
Given that P = 0.75m represents the proportional relationship between the profit earned and muffins sold, the constant, k, is 0.75, which is the profit earned for each muffin sold.
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Without using a calculator, order the following expressions from least to greatest.
3 square root 27, pie, square root 8
Ssolve 2 and 6, only if you know cuz I'm stuck on this
Answer:
2. Linear Pair Prostulate
6. Transitive Property
Step-by-step explanation:
Solve x² + 11x +18=0 by factoring.
A
x = 3 or x=6
B
x=-6 or x = -3
C
x = 2 or x = 9
D
x = -9 or x = -2
What is 20% of 350? Please explain
Answer:
70
Step-by-step explanation:
20% is the same thing as 1/5
350 times 1/5 is 70.
Answer:
70
Step-by-step explanation:
.2 * 350 = 70