8. It took Sharon 85 minutes to wash three cars. She spent x minutes on each car and 10 minutes
putting everything away. Solve 3x +10 = 85 to find out how long it took to wash each car.
a. 5.5 minutes
b. 28.3 minutes
c. 25 minutes
d. 31.65 minutes

Answer:

2 hours: 27 miles, 3 hours: 40.5 miles, 3.5 hours: 47.25 miles

Step-by-step explanation:

1.) If a hiker hikes 9 miles in 2/3 of an hour, he will hike 4.5 (Half of 2/3 is 1/3 and half of 9 is 4.5) miles in 1/3 of an hour and 13.5 miles per hour. (1/3 times 3 gives us a whole and 4.5 times 3 is 13.5)

2.) 2 hours: 13.5 * 2 = 27 miles

3.) 3 hours: 13.5 * 3 = 40.5 miles

4.) 3.5 hours: 13.5 * 3.5 = 47.25 miles

2 hours: 27 miles, 3 hours: 40.5 miles, 3.5 hours: 47.25 miles

Step-by-step explanation:

1.) If a hiker hikes 9 miles in 2/3 of an hour, he will hike 4.5 (Half of 2/3 is 1/3 and half of 9 is 4.5) miles in 1/3 of an hour and 13.5 miles per hour. (1/3 times 3 gives us a whole and 4.5 times 3 is 13.5)

2.) 2 hours: 13.5 * 2 = 27 miles

3.) 3 hours: 13.5 * 3 = 40.5 miles

4.) 3.5 hours: 13.5 * 3.5 = 47.25 miles

this is the guys above i just need points

Answer:

The answer is D (The last one)

Answer:

(d). c = 0.25d + 60

Step-by-step explanation:

$60.00 is a constant

$0.25 per Mb is a coefficient

(d). c = 0.25d + 60

First, not a function if we draw from A to E

Second, domain is -1 ≤ x ≤ 3

Third, range is -5 ≤ y ≤ 2

Answer: Domain=3,-1,3; Range=-5,-3,2

Step-by-step explanation:

Answer:

$4.80 per square foot

Step-by-step explanation:

1200 ÷ 250 = 4.8

Hope this helps. Pls give brainliest.

Answer:

the y-intercept it at 3

Answer:

(3,0) !

Step-by-step explanation:

The y intercept is where the given line touches the y axis (the vertical line of a coordinate plane)

I hope this helps!

Answer: it’s 8 if that 29 is supposed to be a 39 otherwise i don’t know

Step-by-step explanation:

Answer:true

Step-by-step explanation:

Answer:

See Explanation

Step-by-step explanation:

[tex]1 - \sqrt{x} \neq \: 0 \\ \\ \therefore \: 1 \neq \sqrt{x} \\ \\ {1}^{2} \neq ({ \sqrt{x}) }^{2} \\ \\ 1 \neq \: x \\ [/tex]

Hence, x will take values other than 1.

Answer:

it is. Even you change the value of x, the value of y will also change. Since the y-intercept is 7, if we have 0 as our x value, then the y-value will change to 7. Whenever we change the x value, the y value will also change.

Step-by-step explanation:

Answer:

-19

Step-by-step explanation:

Answer:

-19

Step-by-step explanation:

replace x with seven then simplify

Answer:

For the first one 25.925%

The second is 23.333%

The third is 27.27%

Let me know if this helps!

Answer:

do not know

Step-by-step explanation:

Answer:

Angle 1

Step-by-step explanation:

This is because they form the letter F.

REMEMBER CORRESPONDING ANGLES ARE EQUAL.

HOPE THIS HELPED

Answer:

<A = 117degrees

Step-by-step explanation:

<A and <B are verticle angles, as given. Hence they will be of equal measures. It is given that <A = 5x -3, and <B = 4x + 21.

Using this, set up an equation;

<A = <B

5x - 3 = 4x + 21

Inverse operations,

5x - 3 = 4x + 21

    +3          +3

5x = 4x + 24

-4x   -4x

x = 24

Now substitute back in, to find the measure of <A,

5x - 3

x = 24

5 ( 24 ) - 3

120 - 3

117

Answer:

x = -5 , y = 2

Step-by-step explanation:

Solve the following system:

{y + 2 x = -8

-5 y + 3 x = -25

Hint: | Choose an equation and a variable to solve for.

In the first equation, look to solve for y:

{y + 2 x = -8

-5 y + 3 x = -25

Hint: | Solve for y.

Subtract 2 x from both sides:

{y = -2 x - 8

-5 y + 3 x = -25

Hint: | Perform a substitution.

Substitute y = -2 x - 8 into the second equation:

{y = -2 x - 8

3 x - 5 (-2 x - 8) = -25

Hint: | Expand the left hand side of the equation 3 x - 5 (-2 x - 8) = -25.

3 x - 5 (-2 x - 8) = (10 x + 40) + 3 x = 13 x + 40:

{y = -2 x - 8

13 x + 40 = -25

Hint: | Choose an equation and a variable to solve for.

In the second equation, look to solve for x:

{y = -2 x - 8

13 x + 40 = -25

Hint: | Isolate terms with x to the left hand side.

Subtract 40 from both sides:

{y = -2 x - 8

13 x = -65

Hint: | Solve for x.

Divide both sides by 13:

{y = -2 x - 8

x = -5

Hint: | Perform a back substitution.

Substitute x = -5 into the first equation:

{y = 2

x = -5

Hint: | Sort results.

Collect results in alphabetical order:

Answer: {x = -5 , y = 2

Answer:

2

Step-by-step explanation:

Given:

The interval, x = -2 to x = 0.

Required:

Average rate of change from x = -2 to x = 0.

SOLUTION:

From the graph,

If x = -2, f(-2) = 0.

If x = 0, f(0) = 4

Average rate of change = [tex] \frac{f(b) - f(a)}{b - a} [/tex]

Where,

[tex] a = -2, f(a) = 0 [/tex]

[tex] b = 0, f(b) = 4 [/tex]

Plug in the values into the formula:

[tex] = \frac{4 - 0}{0 -(-2)} [/tex]

[tex] = \frac{4}{2} = 2 [/tex]

Average rate of change from x = -2 to x = 0 is 2.

Answer:

C.

Hope this helps.

Answer:

$6

Step-by-step explanation:

18-12=6

sksmskskssksksk

Answer:

$6

Step-by-step explanation:

18-12=6

Answer:

The answer is Table B. Because only table B. doesn't have repeating x or domain.

Answer:

I think the answer might be b

Step-by-step explanation:

Answer:

7 shirts

Step-by-step explanation:

290/40 = 7.25

But since you can't have 7.25 shirts, it's just 7.

Answer:

y=2x

it already gives you that in 2 hours four inches of snow has fallen. to find one hour you would basically just divide it in half

Answer:

y=-1/2x + 3

Step-by-step explanation:

Answer:

Ellie's age = 2 years

Genya's age = 58 years

The current age of Ellie would be 8 years old.

Given is that the sum of Ellie's and Genia's age is 60 and in 6 years, Genia will be eight times older than Ellie will be.

Assume that the current age of Ellie is [x] years and Genia is [y] years. Than, we can write -

x + y = 60

y = 60 - x

and

(y + 6) = 8(x + 6)

Put y = 60 - x , we get -

(60 - x + 6) = 8x + 48

66 - x = 8x + 48

9x = 66 - 48

9x = 18

x = 2

Ellie's current age = x + 6 = 8 years.

Therefore, the current age of Ellie would be 8 years old.

To solve more questions on functions, expressions and polynomials, visit the link below -

brainly.com/question/17421223

#SPJ2

Answer:

A≈84536

Step-by-step explanation:

After 14 year span, the money in the account would be $84,535.62.

Given that,
Jaxon invested $58,000 in an account paying an interest rate of 2.7% compounded quarterly.

Compound interest is the interest on deposits computed on both the initial principal and the interest earned over time.

Here,
principal(P)  =  85000
rate(r) = 2.7% = 0.027
Time(a)  = 14 years,
n = 4  
Apply compound interest identity,
Amount = principal[1 + r/n]ⁿᵃ
Amount = 58000[ 1 + 0.027/4]⁴ˣ¹⁴
Amount = 84,535.62

Thus, After a 14-year span, the money in the account would be $84,535.62.

Learn more about compound interest here:
https://brainly.com/question/14295570
#SPJ2

Answer:

61 meters

Step-by-step explanation:

The perimeter of a rectangle is 2l + 2w, l being the length and w being the width. Substitute the known value into the equation and solve:

312 = 2(95) + 2w

312 = 190 + 2w

122 = 2w

w = 61

Answer:

A or B I think

Step-by-step explanation:

Not entirely sure of it but ummm

Answer:

I think it's commutative. ;-;

Step-by-step explanation:

Answer:

MN = 10

Step-by-step explanation:

There is a scale factor of 2 [This means that the lengths of triangle ∆MPN are exactly 2 times larger than ∆SRQ], so 5 × 2 = 10.

Notice that each corresponding line is marked by a black mark perpendicular to the side. Since 2 corresponds to 4, and 3 corresponds to 6, 5 must correspond to 10. These triangles are similar as indicated by the marks so there is just a size difference. Because these two triangles are similar, the sides must be proportional.

∆MPN ~ ∆SRQ.

It can also be thought of as completing a set of proportional fractions:

4/2 = 6/3 = ?/5

4/2 = 2 → 6/3 = 2 → ?/5 = 2.

?/5 = 2, ? = 5 × 2 = 10.