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Molodets [167]
3 years ago
6

A chocolate cake recipe serves 12 people. A blueberry cake recipe serves 36 people. A lemon cake recipe serves 16 people.

Mathematics
1 answer:
Marizza181 [45]3 years ago
3 0

Answer:

0.60

Step-by-step explanation:

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Working her way through school, Kathy works two part-time jobs for a total of 23 hours a week. Job A pays $5.70 per hour, and Jo
trapecia [35]

Answer:

<u>Kathy worked 11 hours at job A and 12 hours at job B, the week she made US$ 146.70.</u>

Step-by-step explanation:

1. Let's review all the information given for solving this question:

Rate per hour of Job A = US$ 5.70

Rate per hour of Job B = US$ 7.00

Earnings received by Kathy during the week = US$ 146.70

Total time worked by Kathy during the week = 23 hours

Hours at job A = x

Hours at job B = 23 -x

2. Let's find how many hours Katy worked at each job:

This is the equation that we'll use:

5.70x + 7 (23 - x) = 146.70

5.70x + 161 - 7x = 146.70

- 1.3x = 146.70 - 161 (Subtracting 161 at both sides)

-1.3x = - 14.30

1.3x = 14.3 (Multiplying by - 1 at both sides)

x = 14.3/1.3 = 11 (Dividing by 1.3 at both sides)

<u>Kathy worked 11 hours at job A and 12 hours at job B.</u>

3. Proof of x = 11

5.70 x + 7 (23 - x) = 146.70

5.70 (11) + 7 (23 - 11) = 146.70

62.70 + 7 (12) = 146.70

62.70 + 84 = 146.70

146.70 = 146.70

<u>The value of x = 11 is correct.</u>

Note. I provided the same answer to question 13954115.

3 0
2 years ago
You read 1 chapter every hour. You read 3 hours after school. How many chapters did you read?
Marat540 [252]

Answer:

3 Chapters?

Step-by-step explanation:

3x1=3 but I am not sure if it is asking if you read during school or not because this seems like a really simple question and may be over thinking it.

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3 years ago
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WINSTONCH [101]
X 3 5
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ANSWER #3. .
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2 years ago
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Y varies directly as x if y is 2 when x is 8 then the constant of variation is 1/4
sp2606 [1]

Answer:

a. True.

Step-by-step explanation:

y = kx

y = 2 when x = 8 gives:

2 = 8 * k

k = 2/8 = 1/4.

6 0
2 years ago
In how many ways can you<br> select 3 books to bring on<br> vacation from a group of 11<br> books?
Harlamova29_29 [7]

Answer:

u can select 3 books 9 ways

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3 years ago
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