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mario62 [17]
3 years ago
6

Please help me with this. ​

Mathematics
1 answer:
masya89 [10]3 years ago
3 0

Answer:

a) 48 b) 132 c) 180 d) 228 e) 312

Step-by-step explanation:

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aksik [14]

0.4% = 0.004

100 * 0.004 = 0.4

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3 years ago
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y varies jointly as x and z, and y = 32 m, x = 6 m, and z = 8 m. What is the value of y when x = 5 m and z = 12 m
Fantom [35]
We are given y = kxz
We also know 32 = k×6×8, so k = 32/48 = 2/3.
We are then asked to solve:

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What is the value of y in the equation 4y – 2(1 – y) = –44?
Sergio039 [100]

Answer:

-7

Step-by-step explanation:

To find y, follow these steps:

4y - 2 (1 - y) = -44

First, distribute the -2 into the parenthesis:

4y - 2 + 2y = -44

The reason the 2y is positive is due to the fact that negative and negative cancel each other out and form a positive.

Now, combine like terms:

6y - 2 = -44

To get y, you need to isolate it from the constants. In order to do so, do the inverse relationship for the constant -2. To do this, add 2 to -44:

6y = -42

Now, divide six on both sides. You divide because six is currently being multiplied with y. Keep in mind that the 42 is still negative!

y = -7

Hope this helps!

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3 years ago
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A painter can paint 350 square feet in 1.25 hours. What is the painting rate per square feet per hour?
Andrei [34K]

Answer:

280

Step-by-step explanation:

350÷5 will give you quarters. 350÷50=70. 70x4=280

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3 years ago
A teacher wants to know whether the boys in the entire school prefer watching television or playing outdoor games after school.
sweet-ann [11.9K]
Hello!

You want a choice where everyone has an equal chance to answer

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The answer is D) All students in each grade

Hope this helps!
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