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3 years ago

Alexis washes 10 1/2 windows in 3/4.At this rate, how many windows can she wash in one hour?

1 answer:

7 0

14. If in 3/4 of an hour, Alexis can wash 10.5 windows, if you divide 10.5 by 3, you'll get how many he can wash in 1/4 of an hour, then multiply it by 4 and you get how many in 4/4 of an hour (A whole hour.)

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What is the Factor 4m^3-32n^3

Klio2033 [76]

Answer:

2(47m^3-16n^3)

Step-by-step explanation:

7 0

3 years ago

3. Which expression is equivalent to 0? A. O a+(-a) B.O a-(-a) C. (a)(-a) D.

garik1379 [7]

A. a + ( - a)

Because it’s the same thing as: a - a

And if you plug in any value for example:
2 - 2 that would be 0

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3 years ago

3x+1/5y=7 solve for y

Vladimir79 [104]

Hello!

First, let's write the problem.
$3x+\frac{1}{5}y=7$
Subtract 3x from both sides.
$3x+\frac{1}{5}y-3x=7-3x$
$\frac{1}{5}y=7-3x$
The opposite of division is multiplication, so we are going to multiply in order to undo the fraction.
$5\cdot \frac{1}{5}y=5\cdot \:7-5\cdot \:3x$

Our final answer would be,
$y=35-15x$

Thanks!
-TetraFish

5 0

3 years ago

The surface area of the square pyramid shown is 84 square inches. What is the value of $x$ ? Square pyramid with base edge of 6

AysviL [449]

Answer:

4 inches

Step-by-step explanation:

The surface area, A of a right square pyramid is given by :

A = a² + 2as

Where, s = height of each triangular surface = x

a = base edge of pyramid

Substituting values into the equation :

A = 84 in² ; a = 6 in ; Slant height, s = x

84 = 6² + 2(6 * x)

84 = 36 + 2(6x)

84 = 36 + 12x

84 - 36 = 12x

48 = 12x

48/12 = 12x / 12

4 = x

Hence, Slant height, x = 4 inches

7 0

3 years ago

Read 2 more answers

[ PLEASE HELP ASAP, I DONT GET IT ]

nikdorinn [45]

Answer:

b.)

Step-by-step explanation:

in all the other choices the "x" is repeating (x,y). making b the answer (the only one with a non repeating "x" value

3 0

2 years ago