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jeka94
3 years ago
11

Joshua bought several pairs of shoes. Each pair of shoes cost $10. Which algebraic expressions represents the total cost of the

pairs of shoes purchased. Let n represent the number of pairs of shoes.
Mathematics
1 answer:
Lemur [1.5K]3 years ago
6 0

Answer:

10n

Step-by-step explanation:

sorry if i'm wrong

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The sum does not converge because \dfrac76>1.

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Half of the students in an International School are Americans. One third of the remaining students are Europeans, and the rest a
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Answer:

450 students

Step-by-step explanation:

Let s = number of students

1/2 are Americans  1/2s are Americans

s -1/2s = number of students left

1/2 s = number of students left

1/3 of the students left are Europeans

1/3 (1/2s) = 1/6s  are Europeans

The rest are Australians = 150

Students = Americans + Europeans + Australians

   s          =   1/2s          +    1/6s    + 150

Combine like terms

s    = 1/2*3/3 *s + 1/6s +150

s = 3/6s + 1/6s +150

s = 4/6s + 150

Subtract 4/6s from each side

s -4/6s = 150

6/6s - 4/6s = 150

2/6s = 150

1/3s = 150

Multiply each side by 3

3* 1/3s = 150*3

s = 450

There are 450 students

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3 years ago
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Cody was 165cm tall on the first day of school this year, which was 10% taller than he was on the first day of school last year.
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On the first day of school last year, Cody was 148.5 cm tall.
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Which are the solutions to the quadratic equation x^2=9x+6
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I will use a quadratic formula:

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5 0
3 years ago
Answ
Amiraneli [1.4K]

Answer:

1. 7

2. 48

Step-by-step explanation:

you have to <u>subtract</u> 49-42 because some got taken away then you should end up with 7, 63-15 is 48.

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