Chad washes windows after school to make some extra money. He charges $5.50 to wash each window. If the customer provides the supplies, Chad deducts $3.25 from the total cost. One customer paid a total of $27.50 and did not provide supplies. Which equation could be used to find the number of windows, w, that Chad washed for this customer? 5.5w + 3.25 = 27.5 5.5w - 3.25 = 27.5 5.5w = 27.5 5.5 - 3.25w = 27.5

Answers

Answer 1

Answer:

Answer:

$\$5.50w=\$27.50$

Step-by-step explanation:

We know that Chad charges $5.50 per window washed, and he deducts $3.25 from the total cost if the costumer provides the supplies. However, in this case, the costumer doesn't provide the supplies, so Chad will charge $5.50 per window.

This relation can be expressed as

$\$5.50w$

Where $w$ represents windows.

If he charges $27.50, the relation is

$\$5.50w=\$27.50$

Therefore, the right answer is the third choice $\$5.50w=\$27.50$

If you want to find the number of windows Chad washed, you just have to solve the expression

$\$5.50w=\$27.50\nw=(\$27.50)/(\$5.50)\n w=5$

Chad washed 5 windows.

Answer 2

Answer: 3.25w=27.5 is the correct answer.

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The product of two consecutive integers is 420. An equation is written in standard form to solve for the smaller integer by factoring.What is the constant of the quadratic expression in this equation?

x2 + x + ___ = 0

Answers

Answer:

The product of two consecutive integers is 420:

20*21 = 420 and (-21)*(-20) = 420

What is the constant of the quadratic expression in this equation?

Any constant less or equal than 0.25

Step-by-step explanation:

The product of two consecutive integers is 420 can be expressed mathematically as follows:

x*(x+1) = 420

After applying distributive property and subtracting 420 at both sides, we get:

x^2 + x - 420 = 0

In order to factorise, we use the quadratic equation as follows:

$x = (-b \pm √(b^2-4(a)(c)))/(2(a))$

$x = (-1 \pm √(1^2-4(1)(-420)))/(2(1))$

$x = (-1 \pm √(1681))/(2)$

$x = (-1 \pm 41)/(2)$

$x_1 = (-1 + 41)/(2)$

$x_1 = 20$

$x_2 = (-1 - 41)/(2)$

$x_2 = -21$

Then, 20*21 = 420 and (-21)*(-20) = 420

A quadratic equation with the standard form has a solution to the equation: a*x^2 + b*x + c = 0 if its discriminant is greater or equal than zero. Mathematically:

b^2-4(a)(c) >= 0

Here a = 1 and b = 1; then,

1^2-4(1)(c) >= 0

-4(c) >= -1

c <= -1/-4

c <= 0.25

x(x + 1) = 420
x^2 + x = 420
x^2 + x + (- 420) = 0 or x^2 + x - 420 = 0

Pls help I am on a lesson plsss give all my points

Answers

Answer:

7 squared is 49 4 squared is 16.. So it's 49 Pi minus 16 pi. And that's going to be 33 pi.

So the answer is 33 pi.

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Answers

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Plug in 8 for y and 0 for x and solve.

What is the slope of the line passing through the points (-3, 4) and (2, - 1)? A -1B 1
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Answers

Answer:

Step-by-step explanation:

Calculate the slope m using the slope formula

m = $(y_(2)-y_(1) )/(x_(2)-x_(1) )$

with (x₁, y₁ ) = (- 3, 4 ) and (x₂, y₂ ) = (2, - 1 )

m = $(-1-4)/(2-(-3))$ = $(-5)/(2+3)$ = $(-5)/(5)$ = - 1 → A

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Answers

consecutive means right after each other
difference of 1
numbers are
x,x+1,x+2
their sum is 117
x+x+1+x+2=117
add
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largest number is x+2
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largest number is 40

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Answers

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-------------------------------------
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Choice: C
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