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serious [3.7K]
3 years ago
15

Maria thinks of a number double it and add 5 answer is 21 write as an equation in X and solve it to find Maria's number​

Mathematics
2 answers:
lys-0071 [83]3 years ago
5 0

Answer:

The number is 8

Step-by-step explanation:

<em>2x +5 =21 </em>

2x= 21-5

2x=16

2x/2=16/2

x=8

To check

8×2=16

16+5=21

Alexxx [7]3 years ago
5 0
Answer : Maria’s number is 8

2x + 5= 21

2x = 21 -5 ( taking whole number to other side of =)

2x = 16

X= 16/2

X= 8

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Answer:

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Step-by-step explanation:

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Answer:

option D

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Step-by-step explanation:

Given in the question four lines a , b, c, d.

<h3>Prove one</h3>

If two parallel lines (a,b) are cut by a transversal(d), then corresponding angles m<7 and m<15 are congruent.

They are know as corresponding angles.

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