3 years ago

A certain solution of salt water is 10% salt and weighs 50 pounds., More salt must be added to produce a solution that ls

Mathematics

1 answer:

SpyIntel [72]3 years ago

5 0

what are do you want from me i don't even know my bad

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The area of a square piece of land is 784metersquared .What is the perimeter

Marta_Voda [28]

Answer:

112 m

Step-by-step explanation:

The area (A) of a square is

A = s² ( s is the length of side )

Here A = 784 , then

s² = 784 ( take the square root of both sides )

s = $\sqrt{784}$ = 28

Then

perimeter = 4s = 4 × 28 = 112 m

7 0

3 years ago

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Mekhanik [1.2K]

Answer:

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Step-by-step explanation:

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3 years ago

A class contains 3 female and 9 male students. Find the probability that a student chosen at random is a male, and then a second

sammy [17]

9 +3 = 12 students

9 are male
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2nd = 8/11

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3 years ago

A rectangle has an area of 112 square yards. Its width is nine yards less than the length. Write an equation that models this pr

Troyanec [42]

Step-by-step explanation:

L = length

W = width

L = W + 9

A = 112 = LW = (W+9)W

So,

W2 + 9W = 112

W2 + 9W - 112 = 0

Factoring

(W-7)(W+16) = 0

W = 7, -16

We discard W = -16, since a measurement cannot be negative.

W = 7

And since L = W + 9, then L = 7 + 9 = 16

This is a 16x7 rectangle

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3 years ago

\frac{(2_1-4_{2}) ^{4} } {2} <br> Quick I need help<br> Plz answer it NOW

erastova [34]

Answer:

2(2^1-4^2)^4

Step-by-step explanation:

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3 years ago