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Bond [772]
3 years ago
15

……………….. 15 points!!

Mathematics
1 answer:
Softa [21]3 years ago
8 0

Answer:

1 2/7

Step-by-step explanation:

7x9=63

(7x10)-(7xa)=63

70-(7*a)=63

70-63=7*a

9=7*a

9/7=a

a=1 2/7

Hope this helps!

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What is the product of ( 3y)(254)?
SVETLANKA909090 [29]

Answer:

762 y

Step-by-step explanation:

Product of numbers = (3y) ×254

Product = 3 × 254 × y = 762y

5 0
4 years ago
Evaluate the following expression. Write your answer as a fraction or whole number without exponents.
Ainat [17]

Answer:

-0.015625

Step-by-step explanation:

6 0
4 years ago
In how many ways can you select a committee of 3 students out of 10 students ?
Alex_Xolod [135]
I’m not sure but I think it’s 6 ways
5 0
4 years ago
Mr. Kole has 30 students in his class. He has twice as many girls as boys. What is the ratio of boys to total students?
Nataliya [291]

Answer:

1:3

Step-by-step explanation:

First, you need to make a system of equations for the situation.

Let G represent the number of girls and B represent the number of boys.

Since there are twice as many girls as boys,

G = 2B

There are a total of 30 students in class so,

G + B = 30

or

G + B = TOTAL

In order to find the ratio of BOYS to the TOTAL STUDENTS,

you plug in B values that make up G.

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Since B is one third of the total number of students, the ratio is 1:3.

5 0
3 years ago
Read 2 more answers
A food processor for $149.50 cash, or $5.00 down and $10.00 per month for 15 months
ddd [48]

Answer:

Difference in cash and plan = $155 - $149.50 = $5.50

Interest Rate = 3.68%

Step-by-step explanation:

Given:A food processor for $149.50 cash, or $5.00 down and $10.00 per month for 15 months

A food processor by cash = $149.50

Payment plan =  Down payment + $10*15 months

= $5 + $10*15

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Difference in cash and plan = $155 - $149.50 = $5.50

Now we have to find the interest rate

= (difference/original)*100

= (5.50/149.50)*100

Interest Rate = 3.68%

6 0
3 years ago
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