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wel
3 years ago
13

:14=15:21lololololol i have to put 20 characters lolol

Mathematics
1 answer:
Lana71 [14]3 years ago
8 0

Answer:

10

Step-by-step explanation:

x:14=15:21

14/21 = 2/3

Multiply each term by 2/3

15 *2/3 :21*2/3

10:14

The missing number is 10

You might be interested in
Hace 10 años la edad de mi hijo era 1\7 de la del padre.Actualmente sus edades suman 52 años .¿cual es la edad del hijo?
Firdavs [7]

Answer:

Son's age is 14 and father's age is 38

Step-by-step explanation:

The question in English is

Ten years ago my son's age was 1\7 of the father's. Now his ages add up to 52. What is the son's age?

Let

x -----> son's age

y ---->  father's age

we know that

x-10=\frac{1}{7}(y-10) ------> equation A

x+y=52 -----> equation B

Solve the system by graphing

Remember that the solution of the system is the intersection point both graphs

The solution is the point (14,38)

see the attached figure

therefore

son's age is 14 and father's age is 38

6 0
4 years ago
I don’t know how to do that
Alisiya [41]

Answer:

16

Step-by-step explanation:

Divide 64 by 8 to get 8. this is 1/8 of the books.

3/8 were non fiction, or 24

1/4 (2/8) were picture books, or 16

5/8 were non fiction or picture books, so ’the rest‘ of the chapter books is 3/8.

3/8 were chapter books, or 24.

add the amount of picture books and chapter books since they are the fictional texts.

16+24=40

subtract the amount of non fictional books from the amount of fictional books to get the sum.

40-24=16

8 0
3 years ago
Jerrold ran a race that was 3 5/8 miles long. What is 3 5/8 written as a decimal?
Feliz [49]

Answer:

3.625

step by step explanation :

I  just simply searched it up

8 0
3 years ago
How many 1/3s or "thirds" are there between 0 and 1 on a number line?<br> How do you know?
Dmitry [639]

Answer:

3

Step-by-step explanation:

1/3 + 1/3 + 1/3 = 1

This proves that there can only be 3 thirds between 0 and 1.

5 0
3 years ago
A squared plus b squared equals c squared calculator
Vlada [557]

Answer:

umm?

Step-by-step explanation:

You just uhh explained the pythagorean theorem formula

a^{2} + b^{2} = c^{2}

but what's the question?

4 0
2 years ago
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