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Aneli [31]
3 years ago
6

21y+7x=56? what is the value of X

Mathematics
1 answer:
PSYCHO15rus [73]3 years ago
4 0

Answer:

x = 8 - 3y

Step-by-step explanation:

21y+7x=56\\\\21y-21y+7x=56-21y\\\\7x=56-21y\\\\\frac{7x=56-21y}{7}\\\\\boxed{x=8-3y}

Hope this helps.

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18 students which is 60% of the class, are going to Hershey park field trip in June. how many students are in the ENTIRE CLASS:
professor190 [17]

Answer:

30 students

Step-by-step explanation:

Since 18 divided by 30 is .6, you convert .6 to 60% by moving the decimals two places to the right. Hope this helps.

4 0
3 years ago
Is the simplified form of 2 13 -2 13 rational?<br> Yes or no
OverLord2011 [107]

Answer:

yes

Step-by-step explanation:

7 0
3 years ago
Solve the system of equations.<br><br><br> −5x+2y=9<br> y=7x<br> ​
RUDIKE [14]

Answer:

x=1  y=7

Step-by-step explanation:

−5x+2y=9

y=7x

Substitute the second equation into the first

-5x +2(7x) = 9

Distribute

-5x +14x = 9

Combine like terms

9x=9

Divide by 9

9x/9 =9/9

x= 1

Now find y

y = 7(1)

y = 7

5 0
3 years ago
Read 2 more answers
State whether the ratios form a proportion.
Liula [17]
16 to 18 simplifies down to 8 to 9 because you divide 2 to both terms
24 to 27 simplifies down to 8 to 9 because you divide 3 to both terms
So yes
A
6 0
3 years ago
Find the area of the figure.<br><br> Whoever answers within an hour get brainliest
Gemiola [76]

Answer:

48 ft^2

Step-by-step explanation:

The width and height of this parallogram are given:  6 ft and 8 ft.

The area of a parallelogram of width w and height h is A = wh.

Thus, the area of this particular parallelogram is

A = (6 ft)(8 ft) = 48 ft^2

8 0
3 years ago
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