3 years ago

A number is 4 times another number. Their sum is 30.

Mathematics

1 answer:

Gnom [1K]3 years ago

7 0

Answer:

24 and 6 are the 2 numbers

Step-by-step explanation:

let the 2 numbers be x and y , then

x + y = 30 → (1)

y = 4x → (2) [ one number is 4 times the other ]

Substitute y = 4x into (1)

x + 4x = 30

5x = 30 ( divide both sides by 5 )

x = 6

Substitute x = 6 into (2)

y = 4 × 6 = 24

The 2 numbers are 24 and 6

You might be interested in

Find the value of x. A. 10 B. 15 C. 20 D. 25

Ira Lisetskai [31]

Answer:

(5x+13)+(3x+7)=180°

5x+3x=180°-7°-13°

8x=160°

x=160/8

x=20°

option C is correct

6 0

3 years ago

A school principal ordered 1,000 pencils. He gave an equal number to each of 7 teachers until he had given out as many as possib

Semenov [28]

1000/7 = 142.857142857

Because this is not an even number we take "142", then times it by 7 teachers.

142*7= 994

1000 - 994 = 6 Pencils left

3 0

3 years ago

Solve /x-5/=3 A. x=2, x=8 B. x=-8, x=8 C. x=-2, x=2 D. x=-8, x=-2

zhenek [66]

Answer:

A) x=2, 8

Step-by-step explanation:

abs(x-5)=3

x-5=3, x-5=-3

x=3+5=8,

x=-3+5=2

5 0

3 years ago

Marc ordered a rug he gave a deposit of 30% of the cost and will pay the rest when the rug is delivered if the deposit was $75 h

o-na [289]

Use proportion, so multiply 100 by 75, then divide it by 30 and that's your answer.....250

6 0

3 years ago

Read 2 more answers

Whats equivalent to 4/16

Rashid [163]

1/4, 0.25, and 25%.

Hope this answer helps! feel free to ask any additional questions :)

6 0

3 years ago

Read 2 more answers

A number is 4 times another number. Their sum is 30.​

A number is 4 times another number. Their sum is 30.