2 years ago

Explain what operation can be used to solve the equation 3.5n=10.5. What is the value of n

Mathematics

1 answer:

coldgirl [10]2 years ago

4 0

Answer:

see below

Step-by-step explanation:

3.5n=10.5

Divide each side by 3.5 to isolate n

3.5n /3.5 = 10.5/3.5

n =3

You might be interested in

A sauce recipe uses 4 cans of tomatoes in every 2/12 quarts. How many cans of tomatoes are used in each quart of the sauce?

My name is Ann [436]

4/12 quarts
hope this helps

7 0

2 years ago

Solve 7 ( x + 1 ) + 2 = 5x + 15

yawa3891 [41]

Answer:

x = 3

Step-by-step explanation:

7(x + 1) + 2 = 5x + 15

~Simplify left side

7x + 7 + 2 = 5x + 15

~Combine like terms

7x + 9 = 5x + 15

~Subtract 9 to both sides

7x = 5x + 6

~Subtract 5x to both sides

2x = 6

~Divide 2 to both sides

x = 3

Best of Luck!

5 0

2 years ago

Bob is on his way home in his car. His drive is 16 miles long. He has finished one-fourth of the drive so far. How far has he dr

Georgia [21]

Answer:

He has driven 16 miles so far

Step-by-step explanation:

The unknown in your equation is the total length of Trey's drive, which we will call "x".

From the problem statement, you know that 12 is three-fourths of x so set up the following equation and solve for "x":

3/4(x) = 12

multiply both sides of the equation by 4/3 to isolate "x":

(4/3)(3/4)(x) = (12)(4/3)

therefore

x = (12)(4)/(3) = 16

7 0

1 year ago

labwork [276]

The correct answer would be C

Hope this helped

8 0

2 years ago

Find the perimeter of the triangle.

PtichkaEL [24]

Answer:

Perimeter of the Triangle

$( {x}^{2} - 5x + 13) + (2 {x}^{2} - x + 19) + ( {x}^{2} + 3x + 21) \\ =(1 + 2 + 1) {x}^{2} + ( - 5 - 1 + 3)x + (13 + 19 + 21) \\ =(4 {x}^{2} - 3x + 53) \: units$

7 0

2 years ago