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1 year ago

What is the missing number in this sequence? 7,10,15,22, ?, 42

Mathematics

2 answers:

Vlad [161]1 year ago

3 0

Answer:

The missing number is 31.

Step-by-step explanation:

7+3=10

10+5=15

15+7=22

The number added goes from 3 to 5 to 7, this means each time 2 is added.

Therefore, the next number would be 22+(7+2) or 22+9 which equals 31.

And to check if this fits in we can plug the 31 into the sequence.

7, 10, 15, 22, 31, 42

7+3=10

10+5=15

15+7=22

22+9=31

31+(9+2)= 31+11=42

Aleonysh [2.5K]1 year ago

3 0

Answer: 31

Step-by-step explanation: add 3 to the first and then add an extra two for each number going up. +3, then +5, then +7, etc.

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never [62]

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Pronounced as:

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2 years ago

ABCD∼EFGH AD=45 in. , EH=75 in. , and AB=30 in. What is EF ?

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EF = 50 in.

In similar figures, corresponding sides are proportional. We use the similarity statement ABCD~EFGH to write a proportion:

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Cross multiply the proportion:
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