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Vinil7 [7]
3 years ago
11

7a-4b=2b-5a solve for a

Mathematics
1 answer:
uysha [10]3 years ago
5 0

Step-by-step explanation:

7a - 4b = 2b - 5a

7a + 5a = 2b + 4b

12a = 6b

a = 6b/12

a = b/2

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8 0
3 years ago
Read 2 more answers
4(c + d) -3c + 5d when c=1.5 and d= -6.2
patriot [66]

Answer:

-54.3

Step-by-step explanation:

4(1.5−6.2)−4.5−31

=(4)(−4.7)−4.5−31

=−18.8−4.5−31

=−23.3−31

=−54.3

7 0
2 years ago
An engineer scale model shows a building that is 3 inches tall. If the scale is 1 inch = 600 feet, how tall is the actual buildi
Sever21 [200]

The actual height of building is 1800 feet.

Step-by-step explanation:

Given,

Height of building in model = 3 inches

Scale used by engineer;

1 inch = 600 feet

Therefore;

Actual height of building = Height in model * Scale used

Actual height of building = 3 * 600

Actual height of building = 1800 feet

The actual height of building is 1800 feet.

8 0
3 years ago
Please help 10 point question!
Vsevolod [243]

Answer:

not sure about 1

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8 0
2 years ago
Kate made tables of values to solve a system of equations. First she found that the x-value of the solutionwas between 0 and 1,
Blizzard [7]

Answer:

  D. (0.6, 1.3)

Step-by-step explanation:

The difference between y-values is smallest for x=0.6. The approximate y-value is reasonably chosen as the average of the y-values for that value of x.

  (x, y) = (0.6, 1.3) is a reasonable approximation

4 0
3 years ago
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