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sukhopar [10]
3 years ago
14

M(x)=x/-5 ,what is x if m(x)=8

Mathematics
1 answer:
melamori03 [73]3 years ago
5 0

m(x)=-\frac{x}{5} \\ 8=-\frac{x}{5} \\ x=-40

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If a car travels 160 miles in 8 hours, what is the car’s speed?
nexus9112 [7]
Speed = Distance/Time = 160/8 = 20 miles/hour
6 0
3 years ago
What is the volume of a hemisphere with a radius of 3.8in, rounded to the nearest tenth of a cubic inch
Pavel [41]

Answer: 114.9\ in.^3

Step-by-step explanation:

Given

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7 0
3 years ago
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12345 [234]

Given:

The rate of interest on three accounts are 7%, 8%, 9%.

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Amount invested on each rate.

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The amount invested at 8% = 2x

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Total interest for the year is $150.

x\times \dfrac{7}{100}+2x\times \dfrac{8}{100}+3x\times \dfrac{9}{100}=150

Multiply both sides by 100.

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Divide both sides by 50.

x=\dfrac{15000}{50}

x=300

The amount invested at 7% is 300.

The amount invested at 8% is

2(300)=600

The amount invested at 9% is

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Thus, the stockbroker invested $300 at 7%, $600 at 8%, and $900 at 9%.

4 0
3 years ago
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Artemon [7]

Answer:

c

Step-by-step explanation:

There is 6 students in the 8hr zone.

Gosh, do I have to explain?  A is a, c is c!

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3 0
3 years ago
In ΔPQR, point C is the centroid. If PZ = 7, then RZ =<br> A) 3.5 <br> B) 7 <br> C) 14 <br> D) 21
kvv77 [185]

Answer: It's 7

Step-by-step explanation:

4 0
3 years ago
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