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3 years ago

Write an expression in simplest form that represents the earnings for washing and waxing x cars and y trucks

Mathematics

1 answer:

Vikentia [17]3 years ago

4 0

Cost- c
cars-x
trucks-y
Equation:
c=x+y

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Abby, Benji, and Caitlin are training for a race. Last week, Abby ran 6One-half miles and Benji ran 8 miles. They ran a total of

vichka [17]

Answer:

C and D

Step-by-step explanation:

This is a comparision problem. (C)

The totla bar represents 30.8 miles. (D)

Caitlin ran 16.3 miles.

Hope this helps!

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3 years ago

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Find the perimeter of this semi-circle with diameter,

Kryger [21]

Step-by-step explanation:

I have written the answer for you...You must know that diameter is twice the radius.

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4 years ago

A linear function is shown below. What point is on the graph of the inverse of this function?

blagie [28]

Answer:

c. (-4, 0)

Step-by-step explanation:

F(X) = -3X - 4

Y = -3X-4

SWAP X AND Y: x = -3y -4

y = -1/3x - 4/3

f⁻¹(x) = -1/3x - 4/3

point (-4,0): x = -4 y = f⁻¹(-4) = (-1/3)*(-4) - 4/3 = 4/3 - 4/3 = 0

8 0

3 years ago

H (t) = -t2 + t + 12 <br> Solve by using quadratic formula

Sedaia [141]

The quadratic formula is:

$x=\frac{-b+\sqrt{(b)^2-4(a)(c)}}{2a}$

and

$x=\frac{-b-\sqrt{(b)^2-4(a)(c)}}{2a}$

Let's identify our a, b, and c values:

a: -1

b: 1

c: 12

Plug in the values for a, b, and c into the equation. Let's do the first equation:

$x=\frac{-1+\sqrt{(1)^2-4(-1)(12)}}{2(-1)}$

Simplify everything in the radical:

$x=\frac{-1+\sqrt{49}}{-2}$

Simplify the radical:

$x=\frac{-1+7}{-2}$

Combine like terms:

$x=\frac{6}{-2}$

Simplify:

$x=-3$

This is one solution, now, let's solve for the other equation:

Since when simplified, everything is the same except the subtraction sign, we can skip the simplification again and change the sign to subtraction:

$x=\frac{-1-7}{-2}$

Combine like terms:

$x=\frac{-8}{-2}$

Simplify:

$x=4$

Your final answers are:

$x=-3$

$x=4$

8 0

3 years ago

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If you need 2 1/3 cups of flour, how many batches of cookies can you make with 10 cups of flour?

Svetach [21]

EZ: the answer would be 4 which would bring you to 9.3 which would be the max number. PLS GIVE BRAINLIEST AND stuff. I'm sort of new to this xD

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3 years ago