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topjm [15]
3 years ago
10

Help please :( ASAP don’t do wrong answers

Mathematics
1 answer:
lukranit [14]3 years ago
8 0

Answer:

D. 140

Step-by-step explanation:

volume equals length times width times height 7 times 4 times 5 equals 140 good luck

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I NEED THIS ANSWER A S A P
borishaifa [10]

Answer:

C.

Step-by-step explanation:

if wrong then pls contact me in the comment section

7 0
2 years ago
Read 2 more answers
A company needs to replace 27 out of 45 desks in their office. What percent of the desks need to be replaced?
sleet_krkn [62]
60%

Solve by creating a proportion
27/45 = x/100

Cross multiply to get 2700=45x

Divide 45 on both sides to get x=60
6 0
2 years ago
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A marketing firm is studying consumer preferences for winter fashions in four different months. From a population of women 18-21
Solnce55 [7]

Answer:

There were total 4 samples collected and each sample had a sample size of n = 100.

Step-by-step explanation:

We are given the following information in the question:

Collection of samples:

1^{st}\text{ sample was done in January with a sample size n = 100}

2^{nd}\text{ sample was done in March with a sample size n = 100}

3^{rd}\text{ sample was done in June with a sample size n = 100}

4^{th}\text{ sample was done in September with a sample size n = 100}

Hence, there were total 4 samples collected and each sample had a sample size of n = 100.

4 0
2 years ago
16/36 and 4/9 is it proportional or nonproportional
maw [93]

Answer:

proportional because you can divide 16 and 36 by four and get 4/9

3 0
2 years ago
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The differential equation in Example 3 of Section 2.1 is a well-known population model. Suppose the DE is changed to dP dt = P(a
LuckyWell [14K]

Answer:

Decreases

Step-by-step explanation:

We need to determine the integral of the DE;

dP/dt=P(aP-b)

dP=P(aP-b)dt

1/(dP^2-bP)dP=dt

We can solve this by integration by parts on the left side. We expand the fraction 1/P²:

1/(d-b/P)\cdot{P^2} dP

let

u=d-b/P

du/dP=b/P^2

dP=\int\limits {P^2/b} \, du

P=lnu/b

Substitute u in:

P=ln(d-b/P)/b

Therefore the equation is:

ln(d-b/P)/b=t

We simplify:

d-b/P=e^b^t

P=b/(d-e^b^t)

As t increases to infinity P will decrease

6 0
2 years ago
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