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Alecsey [184]
2 years ago
11

Evaluate x+(−21) when x=−27.

Mathematics
1 answer:
marshall27 [118]2 years ago
8 0

Answer:

-48

Step-by-step explanation:

Subsitute -27 for x

-27+(-21) when you add negatives you keep the negative sign

-48

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Y = square root of x + 6
wariber [46]

Answer:

Step-by-step explanation:

x^{2} + 36

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3 years ago
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I need help with this! I'm on a quiz!!!
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Suppose for some value of x the solution to the equation 2.5(y−x)=0 is y = 6. What must be true about x?
Varvara68 [4.7K]

Step-by-step explanation:

In this case, you input the value of y (y = 6) into the equation ( 2.5(y-x)= 0)

2.5(6-x) = 0

Open the bracket,

(2.5×6)-2.5x= 0

Collect like terms.

2.5x= 2.5×6

Divide both sides by the coefficient of x (2.5)

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So,

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Substituting 6 for x in the equation,

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Which is also true.

7 0
2 years ago
The annual snowfall in city Ais 43.9 inches. This is 13.5 inches more than four times the snowfall in city B. Find the annual sn
Jlenok [28]

Answer:

24.475

Step-by-step explanation:

1st Divide: 43.9÷4=10.975

2nd Add 13.5: 10.975+13.5=24.475

--------------------------------------------------------------------

Hope this helps you out :)

7 0
3 years ago
How do i solve x/8=3/4
dusya [7]

Answer:

Quite simply. The answer is X=6

Since you have a full fraction, you can find a common denominator in both fractions and multiply. (The common denominator would be 8, so you would multiply 4 by 2 to get 8. Do the same thing to the top, do multiply 3 by 2 to get 6). Now the fraction is 6/8, and since it's equal to incomplete fraction, you know X is 6.

5 0
3 years ago
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