3 years ago

The sum of 4 times a number and 15 is 47. Find the number.

Mathematics

2 answers:

Bezzdna [24]3 years ago

7 0

Answer:

The number is 8.

Step-by-step explanation:

Write an equation then solve by isolating the variable.

let x be the number

4x + 15 = 47 Subtract 15 from both sides

4x = 47 - 15

4x = 32 Divide both sides by 4

x = 32/4

x = 8

Therefore the number is 8.

kipiarov [429]3 years ago

6 0

Answer:

Step-by-step explanation:

You might be interested in

Julie wants to add call waiting and caller ID to her present phone service. Each new service is $5.99 per month. If her current

EleoNora [17]

Answer: 41.48

Explanation: you have to add the two 5.99 to the bill she already has and you get $41.48

7 0

3 years ago

A school requires 6 computers for every 10 students. How many computers, c, would be needed for 290 students? Write and solve a

Pepsi [2]

Answer:

174 because 290 divided by 10 is 29 so then 29 times 6 is 174.

Hope this helped if not sorry.

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

Will mark brainliest!

VMariaS [17]

Answer:

1.49103082= 1.49

Step-by-step explanation:

3 0

3 years ago

A bike wheel is 26 inches in diameter. What is the bike wheel's diameter in millimeters (1 inch = 25.4 millimeters)?

Papessa [141]

Answer: 26 inches is equivalent to 660.4 millimeters.

Step-by-step explanation:

You will multiply the inches by the conversion.

$26in*25.4mm=660.4mm$

Therefore, the answer is 660.4 millimeters.

I hope this helps!! Pls mark brainliest :)

8 0

2 years ago

Write the sum using summation notation, assuming the suggested pattern continues. -9 - 4 + 1 + 6 + ... + 66

Darya [45]

Answer:

$\sum\limits^n_{k=1} {(-14+5k)}$

Step-by-step explanation:

The series is an arithmetic series with first term (a1) -9 and common difference (d) 5. Then the general term (an) is ...

an = a1 +d(n-1) = -9 +5(n-1) = -14 +5n

The summation notation indicates the sum of "n" of these terms.

7 0

4 years ago