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Dvinal [7]
3 years ago
11

If A=4B and A+B=180 what are A and B

Mathematics
1 answer:
son4ous [18]3 years ago
5 0

Just substitute A = 4B into A + B = 180. So:

4B + B = 180

5B = 180

B = 36

Substitute B = 36 into A = 4B. So:

A = 4*36 = 144

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Step-by-step explanation:

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miguel is 5ft 10 inches tall On a sunny day he casts a shadow of 4ft 2 inches long. At the same time, a nearby electric tower ca
Alex787 [66]
Given:
Miguel's height:
Actual = 5 feet 10 inches
Shadow = 4 feet 2 inches

Tower's height
Actual = x
Shadow = 8 feet 9 inches

First, we need to convert the height into inches to avoid confusion.
1 foot = 12 inches.
Miguel:
5 ft x 12in/ft = 60 inches + 10 inches = 70 inches ACTUAL
4 ft x 12in/ft = 48 inches + 2 inches = 50 inches SHADOW

Tower:
8 ft x 12in/ft = 96 inches + 9 inches = 105 inches SHADOW

Ratio of Actual to shadow:
Miguel: 70 : 50
Tower: x : 105

70 : 50 = x : 105
70*105 = 50x
7350 = 50x
7350 / 50 = x
147 = x

Actual height of the tower is 147 inches or 12 feet 3 inches long.

To check:
Miguel : 70 / 50 = 1.40
Tower : 147 / 105 = 1.40
4 0
3 years ago
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Select the correct answer. Graham puts $20 in his piggy bank every week. At the end of 39 weeks, he adds $100 to the piggy bank
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20*39 = 780

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442.77/3

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8 0
3 years ago
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PLEASE ANSWER IMMEDIATELY
insens350 [35]
Binomial because it is the difference of two terms.

Hope this helps!! Let me know if you have ANY questions
3 0
4 years ago
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