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xeze [42]
2 years ago
8

- 4A-8B. [A=3, B = -1

Mathematics
1 answer:
Bad White [126]2 years ago
7 0

Answer:

-20

Step-by-step explanation:

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Two angles that have the sum of 180 degrees
evablogger [386]
Two angles that have the sum of 180 degrees are supplementary angles. If you need to find angle A, you just need to subtract angle B from 180 degree to find out the degree of the particular angle. Hope I helped. 
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2 years ago
2/5 times 2/3 (28 points)
Alik [6]

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4/15

Step-by-step explanation:

4 0
2 years ago
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6 • 14 - (9 + 8) 2 =
Nataly [62]

Answer:

50

Step-by-step explanation:

For this question you would follow the BIDMAS rule - (Brackets, Indices, Division, Multiplication, Addition, Subtraction.)

The first thing in this question you need to solve it (9 + 8)

we do this because, when we follow BIDMAS, the first rule is brackets

so, 9 + 8 = 17

The second step is to multiply, as this rule is second,

so, 17 x 2 = 34

Our final step is to solve the last bit, which is 6 x 14

and we know that 6 x 14 = 84

So now that we have 84 and 34, we need to subtract the two numbers as shown,

84 - 34 = 50

And this is how you get the answer 50

i hope this has helped you, please comment if you did not understand it and i will explain it in another way : )

4 0
3 years ago
Read 2 more answers
Rene made a 90 % on her math test. If she answered 20 problems correctly , how many problems were on the test ?
MakcuM [25]

Answer:

Rene made = 90 on her math test

If she answer =20problems correctly

we know,

how many problem were there = ?

there where = 90-20

= 70

There where 70 problems

8 0
2 years ago
How can you find a unit rate when given a rate?
aalyn [17]
Perform the indicated division, if any.

Rate: (500 miles)/(20 hours)
Unit rate: (500/20) miles/hour = (25 miles)/(1 hour) = 25 miles/hour

A unit rate is a rate with one unit in the denominator.
3 0
3 years ago
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