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3 years ago

Aiden asked a group of students their favortie type of music chose from the choices of

Mathematics

2 answers:

Natali [406]3 years ago

8 0

Answer:

First you have to find out how many students were asked.

Rock 20

Hip-hop 40

Country 30

Aiden asked to 90 students

Step-by-step explanation:

It’s a Rule of 3:

If in a group of 90 students 20 chose rock. In a group of 360, How many students will choose rock?

90s - 20rock

360- ?

360(20)/90 = 80

Then do the same thing with country.

90s - 30country

360s- ?

360(30)/90 = 120

The total of country and rock will be:

200 students

swat323 years ago

7 0

Answer:

it a rule 3

Step-by-step explanation:

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Please help quick quick

sasho [114]

Answer:

you would distribute the 10 to the 2 so 20x + 80y - 60

Step-by-step explanation:

you distribute the 10 to each of the numbers

5 0

2 years ago

Read 2 more answers

What is the graph? I need to see the graph to be able to answer your question.

lana [24]

Wait, what graph? Are you answering a question? I dont really understand what you're saying...

7 0

3 years ago

Solve the problem . (x – 2) = –14(x – 8)<br> 1) x=0<br> 2)x=--5 1/3<br> 3)x=-3 1/5<br> 4)x=3 1/5

Mrrafil [7]

Answer:

x=38/5

Step-by-step explanation:

distribute

Add 2 to both sides of the equation

Simplify

8 0

3 years ago

The value of a car with an initial purchase price of $15,250 depreciates by 16% per year. How much is the car worth after 6 year

Scrat [10]

Answer:

$13842.43

Step-by-step explanation:

Given data

Value of car=$15,250

Rate of depreciation= 16%

Time = 6 years

We can use the exponential function below to model the value of the car after 6 years

v(t)= a(r)^x

But r= 1-0.016----------Because the value is depreciating

a=15,250

r=0.016

x=6

Substitute

v(t)= 15250(1-0.016)^6

v(t)= 15250(0.984)^6

v(t)= 15250*0.9077

v(t)= $13842.43

Hence the value will be $13842.43 after 6 years

8 0

3 years ago

Expand and simplify (x+5)(x-2)

salantis [7]

Answer:

${x}^{2} - x - 12 = (x + 3)(x - 4)$

${x}^{2} + 3x + 2 = (x + 2)(x + 1)$

${x}^{2} + 3x - 10 = (x + 5)(x - 2)$

Step-by-step explanation:

F [First terms] - Multiply the first terms in each set of parentheses FARTHEST TO THE LEFT

O [Outside terms] - Multiply the first term in the first set of parentheses FARTHEST TO THE LEFT by the last term in the second set of parentheses FARTHEST TO THE RIGHT

I [Inside terms] - Multiply the last term in the first set of parentheses FARTHEST TO THE RIGHT by the first term in the second set of parentheses FARTHEST TO THE LEFT

L [Last terms] - Multiply the last terms in each set of parentheses FARTHEST TO THE RIGHT

${x}^{2} - x - 12 = {x}^{2} - 4x + 3x - 12$

${x}^{2} + 3x + 2 = {x}^{2} + x + 2x + 2$

${x}^{2} + 3x - 10 = {x}^{2} - 2x + 5x - 10$

I am joyous to assist you anytime.

8 0

3 years ago