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Gala2k [10]
3 years ago
8

Are these ratios equivalent?

Mathematics
1 answer:
masya89 [10]3 years ago
3 0

Answer:

A, yes.

Step-by-step explanation:

63:60, 21:20:

The difference between 60 and 20 is *3. If you do that to 21, you get 63. So a , yes.

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deanna gets 3 problema incorrect on her math quiz. her score is 85%. how many questions are on the quiz
never [62]
Let's start by seeing what percentage is incorrect.
100-85=15
So, 15% is incorrect when answering 3 problems wrong. So let's divide 15 by 3.
15÷3=5
So, each problem is worth 5%, let's divide 100 by 5. The reason I'm doing thiis is to find how many questions are on the quiz, since if you got them all right, it's 100.
100÷5
20
There are 20 questions, let's make sure this is correct.
If she got 3 wrong, she got 17 right. Let's calculate her percentage and make sure it is the right one.
17÷20
.85×100
85%
So, there are 20 questions on the math quiz.
8 0
3 years ago
Read 2 more answers
Which system of inequalities is represented by the graph?<br> A) A <br> B) B <br> C) C <br> D) D
yKpoI14uk [10]

Answer:

C

Step-by-step explanation:

It is not A or B because the line is not dotted.

It is not B or D because y should be greater than x

So it is C

5 0
3 years ago
................................................................
Alekssandra [29.7K]

Answer:

A

Answer is A.

Hope this helps.

3 0
3 years ago
Rectangle A has length 12 and width 8. Rectangle B has length 15 and width 10. Rectangle C has length 30 and width 15.
never [62]

Vicki: 10 + 10 + 20 = 40

Johnny: 10 + 10 + 30 = 50

50 - 40 = 10 birds

5 0
3 years ago
Please help
Ira Lisetskai [31]

Answer:

285°

Step-by-step explanation:

105+180=285

7 0
2 years ago
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