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natta225 [31]
2 years ago
10

What is the value of a in the equation 5 a minus 10 b equals 45, when b equals 3?

Mathematics
1 answer:
PilotLPTM [1.2K]2 years ago
3 0

Answer:

15

Step-by-step explanation:

5a - 10b = 45

5a - (10×3) = 45

5a - 30 = 45

5a = 45 + 30

5a = 75

a = 15

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Step-by-step explanation:

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2 years ago
Question Help James and Bethany Morrison are celebrating their 10th anniversary by having a reception at a local reception hall.
BARSIC [14]
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3 years ago
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An architect plans to build an extension to​ Meiling's rectangular deck. Let x represent the​ increase, in​ meters, of her​ deck
elena-14-01-66 [18.8K]

Complete question is;

An architect plans to build an extension to meiling's rectangular deck. Let x represent the increase, in meters, of her deck's length. The expression 4(x+8) represents the area of the deck, where 4 is the width, in meters, and (x+8) represents the extended length, in meters. Use distributive property to write an expression that represents the total area of meilings new deck.

Answer:

4x + 32

Step-by-step explanation:

We are told that the expression 4(x+8) represents the area of the deck.

Also, that 4 is the width, in meters, and (x+8) represents the extended length, in meters.

Thus, area is;

A = 4(x+8)

Using distributive property simply means we will distribute the term outside the bracket to each term inside the bracket.

Thus;

A = (4 * x) + (4 × 8)

A = 4x + 32

8 0
2 years ago
Please help. Geometry!
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Answer:

21.5

Step-by-step explanation:

→_→

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