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satela [25.4K]
2 years ago
8

Luke can fill a small sandbox with sandbox with sand in 4 minutes. However, his brother Drew, is taking sand out at the same tim

e. If full, Drew can empty the sandbox in 6 minutes. How long will it take Luke to fill the sandbox if Drew is emptying it at the same time?
Mathematics
1 answer:
jasenka [17]2 years ago
5 0
10 minutes or more 11 yep
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7(6m - 4) = -364 pls try and show work thanks!
quester [9]

Answer:

7(6m - 4) = -364

multiply 7 for both variables in the parenthesis

42m - 28 = -364

move 28 to other side

42m= -336

divide 42 on both sides

m= -8

3 0
2 years ago
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Please help me and explain how you got it-
BartSMP [9]

Answer:

i dont know

Step-by-step explanation:

8 0
3 years ago
Two brothers build a pyramid-shaped fort. If the fort is 8 feet wide at its base, what expression could be used to calculate the
melisa1 [442]
Answer: An expression for the height is: H = (3/64)V

To start with, we will assume that it is a square pyramid, meaning all the sides of the base are 8 feet wide.

Now, we need the formula for the volume of a square pyramid.

V = BH/3

We know the area of the base, it is 8 x 8 = 64, so we can input that.

V = 64H/3   We can multiply by 3/64 to find an expression for the height of the fort.

(3/64)V = H
5 0
3 years ago
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The equation of line AB is y = 2x + 4. What is the equation of a line parallel to line AB in slope-intercept form that contains
hodyreva [135]

Answer:

Step-by-step explanation:

eq. of line parallel to AB is y=2x+a

if it passes through (3,-2) then

-2=2×3+a

a=-2-6=-8

y=2x-8

7 0
2 years ago
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The N71-90 virus will give an infected person a mild rash on their arms once the person has 1 billion of the virus cells in thei
Naya [18.7K]

Answer:

  • B. 256

Step-by-step explanation:

<u>Given function:</u>

  • v(h) = 2^(h/4)

<u>It can be rewritten as:</u>

  • v(d) = 2^d, where d- number of divisions

<u>If number of divisions is 8, then:</u>

  • v(8) = 2^8 = 256 virus cells

Correct choice is B

4 0
2 years ago
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