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2 years ago

A rectangle has a perimeter of 84 cm and a length of 24 cm. Find the width

Mathematics

1 answer:

Amanda [17]2 years ago

4 0

Answer: 18 CM

Step-by-step explanation:

Since there are 4 sides to a rectangle, and 2 of them are lengths, we can multiply 24 by 2, which results in 48, and subtract it from the overall perimeter, which results in 36. Since the width is 2 sides, we can divide 36 by 2, which results in 18.

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Select the rational expression that is equivalent to the given expression I - 3

Tcecarenko [31]

Answer:

another way to write this is 1:3

5 0

3 years ago

) A watershed experiences a rainfall of 8 inches. What is the runoff volume when the curve number is 80

finlep [7]

Answer:

5.625 inches

Step-by-step explanation:

Given that:

Total Rainfall in inches (P) = 8 inches

The runoff volume (in inches) Q = ???

The curve number CN = 80

Recall that: The runoff volume can be calculated by using the formula:

$Q = \dfrac{(P-0.2S)^2}{(P+0.8S)}$ for P > 0.2S

Q = 0 for P < 0.2S

$S = \dfrac{1000}{CN}-10$

where:

curve number CN = 80

$S = \dfrac{1000}{80}-10$

S = 2.5 inches

Since the rainfall (P) is greater than 0.25

Then:

$Q = \dfrac{(P-0.2S)^2}{(P+0.8S)}$

$Q = \dfrac{(8-0.2(2.5))^2}{(8+0.8(2.5))}$

$Q = \dfrac{(8-0.5)^2}{(8+2)}$

$Q = \dfrac{(7.5)^2}{(10)}$

$Q = \dfrac{(56.25)}{(10)}$

Q = 5.625 inches

Thus, the runoff volume = 5.625 inches

4 0

3 years ago

Matt has $900 in a checking account, has $15,000 in investments, owns an

Natasha_Volkova [10]

Answer:

40400

Step-by-step explanation:

4 0

3 years ago

I need help with this hurry please !!!

Tatiana [17]

Answer:

I think its C

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

Form a union for the following sets. K = {2, 3, 5, 8} L = {3, 5, 7}

Kisachek [45]

A union for sets means you combine the two sets together. The symbol of a union is ∪, so we can represent this question with K ∪ L.

You simply must combine the two sets together without repeating any of the same numbers.

K ∪ L = {2, 3, 5, 7, 8}.

7 0

3 years ago