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3 years ago

3/4 of a number n is equal to -150. Write the verbal sentence as a equation

Mathematics

1 answer:

kakasveta [241]3 years ago

3 0

Answer:

3/4n = -150

Step-by-step explanation:

3/4 of a number n = -150

3/4n = -150

Hope this helps!

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The answer is $6,290

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3 years ago

Angel has 5 cakes. he wants to cut them into 1/5 pieces. how many pieces will he be able to cut?

natima [27]

Answer:

Step-by-step explanation:

5*5=25

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3 years ago

Read 2 more answers

The population of a certain species of insect is given by a differentiable function P, where P(t) is the number of insects in th

Step2247 [10]

Answer:

$\frac{dP}{dt} \ =\ \frac{1}{5}P$

Step-by-step explanation:

Given

Variation: Directly Proportional

Insects = 10 million when Rate = 2 million

i.e. $P = 10\ million$ when $\frac{dP}{dt} = 2\ million$

Required

Determine the differential equation for the scenario

The variation can be represented as:

$\frac{dP}{dt} \ \alpha\ P$

Which means that the rate at which the insects increase with time is directly proportional to the number of insects

Convert to equation

$\frac{dP}{dt} \ =\ k * P$

$\frac{dP}{dt} \ =\ kP$

Substitute values for $\frac{dP}{dt}$ and P

$2\ million = k * 10\ million$

Make k the subject

$k = \frac{2\ million}{10\ million}$

$k = \frac{2}{10}$

$k = \frac{1}{5}$

Substitute $\frac{1}{5}$ for k in $\frac{dP}{dt} \ =\ k * P$

$\frac{dP}{dt} \ =\ \frac{1}{5}* P$

$\frac{dP}{dt} \ =\ \frac{1}{5}P$

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3 years ago

What is 9.25% tax of $27.26?

tangare [24]

Answer:

$29.78

Step-by-step explanation:

1. make the % into a decimal

9.25% = 0.0925

2. multiply amount by the decimal to get the tax amount

$27.26 × 0.095 = $2.52

3. take the original amount and add the tax to get your final total

$26.27 + $2.52 = $29.78

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3 years ago

21 fewer than two sevenths of students

zhenek [66]

The expression is 2/7s-21
(s=students)
other than that i don’t understand your question
message me for help!!

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4 years ago