3 years ago

The sum of two numbers is 21 the second number is 6 times the first number of

Mathematics

2 answers:

romanna [79]3 years ago

8 0

the numbers are 3 and 18

let the first number be n then the second number = 6n and the sum

sum = n + 6n = 21 thus

7n = 21

divide both sides of the equation by 7

n = $\frac{21}{7}$ = 3

the numbers are 3 and 6 × 3 = 18 → (3 + 18 = 21)

Ronch [10]3 years ago

8 0

A + B = 21
6 x A = B

A + 6xA = 21
7xA=21
21/7= 3

A=3
B=18

You might be interested in

The radius of a circle is 8 kilometers. What is the area?

Scorpion4ik [409]

Answer:

Area of the circle= $200.96 km^2$

Step-by-step explanation:

Area of a circle= $\pi *r*r$

For radius(r)=8 km

The area of the circle is :

= $\pi *8*8$

As:

$\pi =\frac{22}{7}=3.14$

Area of the circle:

$=3.14*8*8\\\\=3.14*64\\\\=200.96km^2$

The Area of the circle with the radius of $8km$ is $200.96 km^2$

7 0

3 years ago

Read 2 more answers

Which statement is true?

Lesechka [4]

Answer:

can't see anything in this photo because this photo is not clear

3 0

2 years ago

Need help with this question, if you don’t know it don’t answer it please

Lerok [7]

Answer:

Step-by-step explanation:

9 x 3 x 2 = 54

7 0

3 years ago

Read 2 more answers

a die rolled. the set of equally likely outcomes is 1 ,2, 3, 4, 5, 6. find the probability of getting a 10.

Sidana [21]

Answer:

1 in 12

Step-by-step explanation:

hard to explain

5 0

3 years ago

The scatter plot shows the time spent studying, x, and the midterm score, y, for each of 24 students.

Savatey [412]

Answer:

nope I don't think so..

u can't become a nationalist without becoming a facists

7 0

3 years ago