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krek1111 [17]
3 years ago
13

1.The radii of two circles are in the ratio of 3 to 1. Find the area of the smaller circle if the area of the larger circle is 2

7 sq. in.
9
6
3
@lilbeastslater kaneki is hella spicy
Mathematics
2 answers:
zmey [24]3 years ago
8 0

It’s 9. 3x9 is 27. Nothing else times anything equals 27, excluding decimals.

raketka [301]3 years ago
7 0

Answer:

3 in²

Step-by-step explanation:

The linear ratio = 3 : 1, hence

The area ratio = 3² : 1² = 9 : 1

let x be the area of the smaller circle, then

\frac{9}{1} = \frac{27}{x} ( cross- multiply )

9x = 27 ( divide both sides by 9 )

x = 3

Area of the smaller circle = 3 in²

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72÷6374<br><img src="https://tex.z-dn.net/?f=72%20%5Cdiv%206374" id="TexFormula1" title="72 \div 6374" alt="72 \div 6374" align=
Ivan
72 divided by 6374 is equal to 0.0113

Hope it helps :)
6 0
3 years ago
(40/5)-7+2? I know the answer but I don’t know how I got to it
ExtremeBDS [4]

Answer:

3

Step-by-step explanation:

(40/5)-7+2

PEMDAS says parentheses first, so divide inside the parentheses

(8)-7+2

Then add and subtract from left to right

1 +2

3

8 0
3 years ago
Read 2 more answers
James earned $39,600 last year. He paid $11,250 towards rent and $1,422 in car payments. What percent of his earnings did Jon pa
tester [92]
Step 1:
Add rent & car payments

=11,250+1422
=$12,672

Step 2:
to determine %, set up a proportion
12,672 is to his total of 39,600 as x is to 100

12,672/39,600 = x/100
cross multiply
(12,672)(100) = (39,600)(x)
1,267,200= 39,600x
divide both sides by 39,600
32%= x

OR

Alternative Step 2:
12,672 ÷ 39,600= 0.32
Alternative Step 3:
0.32 x 100 = 32%
or move decimal to the right 2 places

His rent and car payments are 32% of his earnings.

Hope this helps! :)
5 0
3 years ago
Read 2 more answers
What is 4(x-2)=4x+10
Effectus [21]

Answer: No Real Answers

Step-by-step explanation:

1. Distribute

4x-8=4x+10

2. Get variables to one side add 8, subtract 4x)

0 = 18

3. Since this statement is false, the answer is... No real answers

3 0
3 years ago
Read 2 more answers
A school baseball team raised $810 for new uniforms.Each player sold 1 book of tickets.There were 10 tickets in a book and each
Leviafan [203]

Answer:

The school baseball team sold 270 tickets

Step-by-step explanation:

Step 1

Identify the total amount of tickets sold by each player;

1 player=1 book of tickets

But 1 book=10 tickets

Step 2

Express the total cost of ticket sales per book as follows;

total cost=cost per ticket×number of tickets per book

where;

cost per ticket=$3

number of tickets per book=10

replacing;

total cost=(3×10)=$30

Step 3

Using the expression below, solve for the number of tickets sold

Total amount raised=price per ticket×number of tickets sold

where;

total amount raised=$810

price per ticket=$3

number of tickets sold=n

replacing;

810=3×n

3 n=810

n=810/3=270

n=270

The school baseball team sold 270 tickets

5 0
3 years ago
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