the gray car can drive 420 miels on 15 gallons of gas and the blue can can drive 510 miels on 17 gallons of gas. what are the unit rates for a gallon of gas for each car? which car has the best unit rate (more miels for less gas_ show your math and explain each step you took to determine your answer.

Answers

Answer 1

Answer:

420+15+510+17=962

Step-by-step explanation:


Related Questions

Below are two regular polygons. Calculate the value of angle a.​

Answers

there’s no attachment

Cynthia has 8.95 grams of flour. how many milligrams does she have?​

Answers

Answer:

8950

Step-by-step explanation:

what is 3 1/2 x 1 1/2 x 2

Answers

Answer:

[tex]\frac{77}{2}[/tex] or 38 [tex]\frac{1}{2}[/tex]

find the second derivative of the given function.
[tex]f(x) = \frac{x {}^{2} + 2x - 1}{ x} [/tex]

Answers

The second derivative would be -2/x^3 (the whole fraction is negative)

Answer:

= -2/x^3

Step-by-step explanation:

Possible derivation:

d/dx(d/dx((x^2 + 2 x - 1)/x))

Distribute 1/x through x^2 + 2 x - 1:

= d/dx((d/dx(2 - 1/x + x)))

Differentiate the sum term by term and factor out constants:

= d/dx((d/dx(2) - d/dx(1/x) + d/dx(x)))

The derivative of 2 is zero:

= d/dx(0 - d/dx(1/x) + d/dx(x))

Use the power rule, d/dx(x^n) = n x^(n - 1), where n = -1.

d/dx(1/x) = d/dx(x^(-1)) = -x^(-2):

= d/dx(0 - -1/x^2 + d/dx(x))

The derivative of x is 1:

= d/dx(0 - -1/x^2 + 1)

Differentiate the sum term by term:

= d/dx(1) + d/dx(1/x^2)

The derivative of 1 is zero:

= d/dx(1/x^2) + 0

Simplify the expression:

= d/dx(1/x^2)

Use the power rule, d/dx(x^n) = n x^(n - 1), where n = -2.

d/dx(1/x^2) = d/dx(x^(-2)) = -2 x^(-3):

Answer:  = -2/x^3

What is the value of
7p + 9/3
when p= 6 and q= 12?

Answers

Is the question 7p+q/3 ?!

Then the answer is 138/3

Because 7*6 + 12/3

42+12/3

LCM is 3

126/3 + 12/3

= 138/3

Answer:

45

Step-by-step explanation:

I don't understand this.

Answers

Answer:

Me too i cant understand

Step-by-step explanation:

ba bay



The radius r in feet of a spherical water tank can be determined by using the formula

Answers

R equals pi r squared

on a map 3 cm represents 60 km. what is the constant of proportionality

Answers

1:20
One centimeter is equivalent to twenty kilometers

11.44 plus O.7 eqalls

Answers

Answer:

12.14

Step-by-step explanation:

because if 11.44 id added to .7 we add a zero to point .7. .70

11.44

+ .70

12.14

Answer:

12.14

Step-by-step explanation: Because if you add 0.7 to 0.44 then you get 1.14, then you add 1.14 to 11 you get 12.14

Lines AB and CD are parallel. Determine the measures of the three angles in the diagram

Answers

Answer:

Step-by-step explanation:

rahim's father's age is 3 times as old as him. if their sum is 56 , find their ages

Answers

Answer:

Rahim is 14 and his father is 42.

Step-by-step explanation:

Let F be Rahim's father's age and R is Rahim's age.

We learn that:

F = 3R  [Rahim's father's age is 3 times as old as him]

and

F + R = 56  [their sum is 56]

----

We have 2 equations and two unknowns, so we should be able to find the answers.

Rearrange the second equation to:  F = 56 - R

The use that definition of F in the first equation:

F = 3R

(56-R) = 3R

Then we can find R:

56-R = 3R

4R = 56

R = 14

Since R=14 and F + R = 56,

F + R = 56

F + 14 = 56

F = 42

Check

Does F=3R?

42 = 3(14)?  YES

Does F + R = 56?

42 + 14 = 56?  YES

Rahim is 14 and his father is 42.

help would help please :) auestion in attacment

Answers

Answer:

See below

Step-by-step explanation:

Ravi will get:

50,000x(2/(2+3))=50,000x(2/5)=20,000

Rani will get:

50,000x(3/(2+3))=50,000x(3/5)=30,000

Solve the system of equations using substitution
3x – 2y = 3 –4x + y = 6

(X,Y)= (? ,?)

Answers

Step-by-step explanation:

I hope this helps.........

Answer:

(-3,-6)

Step-by-step explanation:

1/4 = 8/k HELP! WILL GIVE BRAINLIST IF CORRECT ANSWER SND CORRECT FORMAT

Answers

Answer:

I think 32 because 32/4=8

Step-by-step explanation:

Answer is this photo i know i have bad handwriting

Which image shows a plane slicing a cone to produce an ellipse?

Answers

Answer:

B

Step-by-step explanation:

took the assignment

The ellipse is obtained by slicing the cone at an angle. Then the correct option is B.

What is a conic section?

A shape made up of a surface and a round cone intersecting. A conic section is sometimes a circle, an ellipse, a parabola, or a hyperbola, based on the direction of the surface with regard to the conical.

The ellipse is obtained by slicing the cone at an angle that passes through the surface of the cone.

Then the correct option is B.

More about the conic section link is given below.

https://brainly.com/question/22105866

#SPJ2

The assumption that there are no exact linear relationships among the independent variables in a multiple linear regression model fails if _____, where n is the sample size and k is the number of parameters.
a. n < k 1
b. n > k
c. n

Answers

Answer:

a. n < k + 1

Step-by-step explanation:

Multiple linear regression model is used for analyzing the linear relationship between the independent variables and dependent variable. It is used when there is the need to predict the relationship of a variable based on the values of two or more other variables. These variables could be nominal, ordinal, or interval/ratio level variables.

Some assumptions of multiple linear regression analysis are:

i.  There must be a linear relationship between the outcome variable and the independent variables.

ii. The residuals are normally distributed.

iii. That the independent variables are not highly correlated with each other.

The assumption that there are no exact linear relationships among the independent variables in a multiple linear regression model fails if n < k + 1.

simplify (-2)^4(-2) a.-32 b.-16 c.16 d.32

Answers

the answer is a! hope that helps!

Mark has some money in his wallet. He was paid $8 for for working for an hour and then had a total of $15. How much money did he have in his wallet before working?

show your work

Answers

Mark had $7 in his wallet before working.

15 - 8 = 7

We subtract the 8 dollars that he earned for working from the 15 dollars that he had in the end to find what he had at first.

First, break the irregular polygon into shapes whose (select)
you can find using familiar formulas. The (select) of these areas is the area of the polygon.

First Select options: Areas,distances,sizes,averages,perimeter

Second Select options: Sum, Difference, Average, Product

Answers

The area of a shape is the amount of space it occupies

The complete statement is: First, break the irregular polygon into shapes whose area you can find using familiar formulas. The sum of these areas is the area of the polygon.

How to determine the area of an irregular polygon

An irregular polygon contains several familiar shapes.

So, the first thing to do is to break the polygon into smaller shapes

Then calculate the areas of these shapes

Lastly, add the areas of the shapes to get the area of the irregular polygon

Hence, the area of an irregular polygon is the sum of the areas of the shapes that make up the irregular polygon

Read more about areas at:

https://brainly.com/question/24487155

There are a 11 of birds on a fence between person named ben had the license to hunt animals he shot one bird how many would there be and also how many was there?

Answers

Answer:

Zero

Step-by-step explanation:

Because the rest of the birds will fly away from the fence.

Bobby bought c pieces of candy that
cost $0.65 each and h bags of chips that
cost $0.95 each. Write an expression
that represents how much he spent. .

Answers

Answer:

0.65c + 0.95h

Step-by-step explanation:

For every 'c' pieces of candy it will cost 0.65

For every 'h' bag of chips it will cost 0.95.

CD bisects ∠ACB. Which statements must be true? Check all that apply.

1. AD = BD
2. AC = CD
3. m∠ACD = m∠BCD
4. m∠CDA = m∠CDB
5. m∠DCA = m∠DAC

Answers

Answer: A, C, D

Step-by-step explanation:

1) AD=BD must be true because the angle bisector drawn from the vertex angle of an isosceles triangle is the perpendicular bisector of the base.

2) AC=CD does not need to be true because angles ADC and CAD do not need to be congruent.

3) This must be true by the definition of an angle bisector.

4) This must be true because angles CDA and CDB are both right angles.

5) This does not need to be true because triangle ADC does not need to be isosceles.

The collection of all possible events is called a. a sample space b. an outcome c. an event d. None of these choices.

Answers

The collection of all possible events is called a sample space.

Pls explain this question for me
100/7

Answers

Answer:

100/7 --> 50/3.5 --> 25/1.75 . If we're assuming, without a calculator, we can just say 1.75 ~ 2. So 25/2 = 12.5 as an approx .

But actually, 100/7 -- with no assumptions etc, is just 14.28571429

please solve the question​

Answers

Answer:

x/2 + y√3/2 = 4

Step-by-step explanation:

Step 1: Apply formula

Formula for this problem is :-

xcosα + ysinα = p

Step 2: Substitute values

xcos(60°) + ysin(60°) = 4

x(1/2) + y(√3/2) = 4

x/2 + y√3/2 = 4

Hope it helps.

;)

<3

Daphne drives 500 mi to visit her sister. She stops for lunch after driving 375 mi. What percent of the trip has Daphne completed when she stops for lunch? Record your answer on the grid. Then fill in the bubbles

Answers

Answer:

She completed 75% of the trip

Step-by-step explanation:

375 miles of 500 miles= 375/500

375/500=0.75

0.75 x 100=75%

Krista is measuring plants for science class. She finds a leaf that is 5 inches long and a stick that is 7 inches long. How many inches longer is the stick than the leaf?

Answers

Answer:

2 inches

Step-by-step explanation:

7inches - 5 inches = 2 inches

Hope this helps!

Susan makes 8 dollars for each hour of work. Write a equation of her total pay after working hours

Answers

8x=y

I’m not sure if that’s right but that’s how I would do it.

Can someone please help? The teacher didn’t explain us this part.

Answers

Answer:

With ratio's you would be comparing two different numbers. So RS and AB ratio is 18:24, which could be divided by 6 to simplify to 3:4

Step-by-step explanation:

ill give the brainliest to the correct and the best explained answer :))​

Answers

Answer:

20 m

Step-by-step explanation:

Using the Pythagorean Theorem,

a² + b² = c²

c² = (16)² + (12)²

= 256 + 144

= 400

c =√400

c = 20 m

Solution:

Given:

Length of rectangle = 16 mBreadth of rectangle = 12 m

Solve using Pythagoras theorem:

c (Diagonal)² = 12² + 16²=> c² = 144 + 256=> c² = 400=> c = √400 = 20 m

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