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4 years ago

13

Corey bought 112 feet of porch boards at the lumberyard. If each foot cost $1.59,how much change would he get back from $200?

1 answer:

abruzzese [7]4 years ago

6 0

So first you want to do the cost of each foot times the number of feet 112 * $1.59 = $178.08

Then do the subtraction $200.00 - $178.08 = $21.92

Therefore, the answer is C

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How do you solve x/-11 >= -9?

marta [7]

You can cross multiply
-11(-9) x *( 1)
99=1x
99=x
the answer is 99=x

3 0

3 years ago

What is the answer??

eduard

If the bikes original price was $112.99...
and it's 75% off you have to multiply the original price by the percentage thats left which is 25%...
$112.99×.25%=28.25
ANSWER: b)28.25

6 0

3 years ago

A half-acre building lot is five times as long as it is wide. What are its dimensions?

Gnoma [55]

we know that

A half-acre is equal to----------> $2,023.43\ m^{2}$

Let

x---------> the length side of the building lot

y--------> the width side of the building lot

A------> Area of the building lot

x=5y-------> equation 1

$A=2,023.43\ m^{2}$

$A=x*y$

$2,023.43=x*y$ --------> equation 2

substitute equation 1 in equation 2

$2,023.43=[5y]*y$

$5y^{2}= 2,023.43\\y^{2}= 404.686\\y= 20.11\ m$

<u>Find the value of x</u>

$x=5y---> x=5*20.11--> x=100.55 m$

therefore

<u>the answer is</u>

the dimensions of the building lot are 100.55 m* 20.11 m

6 0

3 years ago

What is the factored form of this expression?

kirill [66]

Answer:

= (3t+2)(3t-2)(3t-4)

Step-by-step explanation:

Given the expression 27t^3 - 36t^2 - 12t + 16

On factoring:

(27t^3 - 36t^2) - (12t + 16)

= 9t²(3t-4)-4(3t-4)

= (9t²-4)(3t-4)

factoring 9t²-4

9t²-4 = (3t)² - 2²

From different of two square, a²-b² = (a+b)(a-b)

Hence (3t)² - 2² = (3t+2)(3t-2)

= (9t²-4)(3t-4)

= (3t+2)(3t-2)(3t-4)

Hence the factored form of the expression is (3t+2)(3t-2)(3t-4)

6 0

3 years ago

If Sammy sold 8 water bottles for every 3 water bottles David sold and all together they sold 110 how many did each boy sell

taurus [48]

Sammy- 80
David- 30
I got this by doing 8+3=11
110÷11=10
8×10=80
3×10=30
~JZ
<span>Hope it helps</span>

5 0

3 years ago