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Elina [12.6K]
2 years ago
14

Find the number a for which x=5 is a solution of the given equation.

Mathematics
1 answer:
vfiekz [6]2 years ago
3 0

Step-by-step explanation:

x + 8a = 25 + ax - 7a

x = 5

5 + 8a = 25 + 5a - 7a

5 + 8a = 25 - 2a

5 + 10a = 25

10a = 20

a = 2

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Answer:

A. 4/7 feet

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6 0
3 years ago
Find two consecutive numbers whose sum is 117
Serhud [2]
So,

x + y = 117
y = x + 1
x + x + 1 = 117

Collect Like Terms
2x + 1 = 117

Subtract 1 from both sides
2x = 116

Divide both sides by 2
x = 58

y = x + 1

y = 58 + 1

y = 59

The 2 consecutive integers are 58 and 59.
6 0
3 years ago
Read 2 more answers
Please help me. Please!!
Y_Kistochka [10]

Answer:

B

Step-by-step explanation:

7 0
3 years ago
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Eargbkzvukuahdfbvvukhzdfbkufhbaw4jhbale&bLUsfhbvULHsfbf
pogonyaev

Answer:

a - 13/30

Step-by-step explanation:

2/5 +x = 5/6

2/5 + x -2/5 = 5/6 - 2/5

x = 13/30

6 0
3 years ago
Which number line represents the solution set for the inequality –4(x + 3) ≤ –2 – 2x?
Delicious77 [7]

Answer:

–4(x + 3) ≤ –2 – 2x

>>.....-4x -12 ≤ -2 -2x

>>  -12 +2 ≤ +2x  

>> - 10 ≤ 2x

>> -5 ≤ x............>> x >= -5  

Step-by-step explanation:

you didn't post any number lines...

3 0
3 years ago
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