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Hitman42 [59]
3 years ago
11

If a/4 = b/7, what is the value of (a-b) / b?

Mathematics
2 answers:
DerKrebs [107]3 years ago
8 0
First we will find out the values of a
a/4=b/7
a=4b/7

Now
(a-b)/b
{4b/7-b}/b
(4b-7b)/7b
-3b/7b
-3/7
borishaifa [10]3 years ago
8 0

Answer:

-3/7

Step-by-step explanation:

a/4=b/7

a/b=4/7

(a-b)/b=(3-7)/7

(a-b)/b=-3/7

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Please help me with # 3
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Answer:

The exterior angles need to equal 360 degrees.

You have 70 + 65 + 75 = 210

So 2x + 3x need to equal 360 - 210 = 150

5x = 150

x = 150 /5 = 30

2x = 2 *30 = 60

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An interior angle and an exterior angle need to equal 180 degrees.

The largest interior angle would need to correspond with the smallest exterior angle.

The smallest exterior angle is 2x which equals 60 degrees.

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4 0
4 years ago
Find the measure or angle xyz
blagie [28]

Answer:

The answer to your question is: 85°

Step-by-step explanation:

Data

m∠ xyz = 2m∠x - 9

m∠w = 38°

Process

∠x = (∠xyz + 9) / 2

∠ y = 180 - ∠xyz

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Substitution              38 + (180 - ∠xyz) +   (∠xyz + 9) / 2 = 180

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Simplify

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                                  85 = ∠ xyz

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3 years ago
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11111nata11111 [884]

Answer:

I think the answer would be the very first one.

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here's an example

Factored form:

2x(x + y)

not factored:

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3 years ago
Whats 20y^2+5Y+8 its basic algebra
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May I please get help on this/
lara31 [8.8K]

Answer:

8 would be your answer

Step-by-step explanation:

brainlest pls

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3 years ago
Read 2 more answers
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