All categories

2 years ago

The sum of a number and 5 decreased by twice the number.

Mathematics

2 answers:

GREYUIT [131]2 years ago

8 0

<h3>Answer: -x+5</h3>

This is the same as 5-x

Work Shown:

x = unknown number

x+5 = sum of the number and five

x+5-2x = that previous sum decreased by twice the unknown number

-x+5 = combine like terms

Ann [662]2 years ago

5 0

Answer:

-x+5

hope this help!!!

Step-by-step explanation:

You might be interested in

The box is 2.1 feet long,2.7 feet wide and 3.2 feet high. What is closest to the total surface area of the box?

galina1969 [7]

So the actually surface area can be split up by dif parts....meaning
2 side is 2.7*3.2*2 = 17.28
2 side is 3.2*2.1*2 = 13.44
2 sides is 2.1*2.7*2= 11.34

then u add up the areas = 42.06ft^2

then u look for what is the clossest...and that is 42gt^2

3 0

3 years ago

Read 2 more answers

10 more than 2 times a number is equal to 2 times the number plus 50. What is the number?

PSYCHO15rus [73]

Answer:

y = 40 is the answer

Step-by-step explanation:

Let the number be y

10 more than 2 times a number = 10 + 2×y

equal to 2 times the number plus 50. = 2 × y + 50

10 + 2y = 2y + 50

combine the like terms

2y - 2y =50 - 10

0 = 40

the number supposes be 40 but the number is represented by 0

i think some thing is missing in your question

y supposes be 40 not 0 = 40

Hope this helps!

3 0

3 years ago

Simplify Rewrite the expression in the form x ^ n X^ 2 * x ^ - 12 =

Natalija [7]

Step-by-step explanation:

Given

$= {x}^{2} \times {x}^{ - 12 } \\ = {x}^{2 - 12} \\ = {x}^{ - 10}$

Hope it will help :)

8 0

3 years ago

Read 2 more answers

Three red rods are 2cm longer than two blue rods. Three blue rods are 2cm longer than four red rods. How long is each rod?

nydimaria [60]

Answer:

The length of each red rod is 10 cm and the length of each blue rod is 14 cm

Step-by-step explanation:

Let

x ----> the length of each red rod in centimeters

y ----> the length of each blue rod in centimeters

we know that

$3x=2y+2$ ----> equation A

$3y=4x+2$ ----> equation B

Solve the system by graphing

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

using a graphing tool

The solution is the point (10,14)

see the attached figure

therefore

The length of each red rod is 10 cm and the length of each blue rod is 14 cm

4 0

3 years ago

Mr. Klampett has been asked to partition some space in a garage for storage. He estimates 8 square feet of storage space per ind

Mashutka [201]

It's 640 ft^2.
If the storage is 96 ft^2 and 15% of the total amount of space is required.
X=100%
96 ft:15=x:100
Solve for x and you get 640 ft^

3 0

3 years ago

Read 2 more answers