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Eddi Din [679]
3 years ago
13

What is the 21x+63+78

Mathematics
1 answer:
Anna35 [415]3 years ago
5 0

Answer:

x= -6.7

Step-by-step explanation:

21x=-63-78

21x=-141

x= -6.7

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Y is inversely proportional to x and y = 24 when x = 2.
bija089 [108]

Answer:

k = 48

For x = 6, y = 8.

Step-by-step explanation:

The general equation for inverse variation is

y = k/x

We are told that y = 24 when x = 2, so we plug in those two values in the general equation to find the value of k.

24 = k/2

k = 24 * 2 = 48

Now that we know k = 48, the equation for our case is

y = 48/x

Now we plug in x = 6 and find y.

y = 48/x

y = 48/6

y = 8

6 0
3 years ago
a construction crew Must build 4 miles of road in one week on Monday they build 1/2 mile of road in one week on Tuesday they bui
NNADVOKAT [17]
To solve this, you need to make the amount they built on Monday and the amount they built on Tuesday compatible with each other so you can add them together to subtract that amount from 4.

Start by multiplying 1/2 by 3, and 1/3 by 2.

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3/6 + 2/6 = 5/6

Finally, subtract this amount from 4:

4 - 5/6 = 3 1/6 (19/6 works too)

Hope this helps! :)

6 0
3 years ago
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Answer:

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3 0
4 years ago
PLEASE HELPP WILL MARKDOWN BRAINLIEST!!
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Answer:

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Step-by-step explanation:

6 0
2 years ago
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What is the simplified form of 4 x 6^2 ÷ 3 + 7? ​
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