All categories

2 years ago

Simplify each expression by combining like terms -5(n-5)+3(n+1)

Mathematics

2 answers:

Olenka [21]2 years ago

7 0

Answer:

-2n + 28

Step-by-step explanation:

-5(n-5) + 3(n+1)

Let's distribute!

-5n + 25 + 3n + 3

Now we can add the like terms (n's with n's and numbers with numbers)

-2n + 28

Tcecarenko [31]2 years ago

6 0

Answer: -2n+28

Step-by-step explanation:

We can use the distributive property to solve this problem.

-5n+25+3n+3

-2n+28

You might be interested in

The speed of cars passing through the intersection of Blossom Hill Road and the Almaden Expressway varies from 11 to 35 mph and

ella [17]

Answer:

hehehehehheheh

Step-by-step explanation:

7 0

3 years ago

you be the teacher explain how you would calculate the volume of the figure shows have fun be creative in detail

lisov135 [29]

Answer:

The volume of the figure is equal to

$\frac{1,225}{3}\pi\ ft^{3}$ or $408\frac{1}{3}\pi\ ft^{3}$

Step-by-step explanation:

we know that

The volume of the composite figure is equal to the volume of a cone plus the volume of a cylinder

step 1

Fin the volume of a cone

The volume of a cone is equal to

$V=\frac{1}{3}\pi r^{2}H$

we have

$r=7\ ft$

$H=7\ ft$

substitute

$V=\frac{1}{3}\pi (7^{2})(7)=\frac{343}{3}\pi\ ft^{3}$

step 2

Find the volume of the cylinder

The volume of the cylinder is equal to

$V=\pi r^{2}h$

we have

$r=7\ ft$

$h=6\ ft$

substitute

$V=\pi (7^{2})(6)=294 \pi\ ft^{3}$

step 3

Find the volume of the figure

$\frac{343}{3}\pi\ ft^{3}+294 \pi\ ft^{3}=\frac{1,225}{3}\pi\ ft^{3}$

Convert to mixed number

$\frac{1,225}{3}\pi=\pi(\frac{1,224}{3}+\frac{1}{3})=408\frac{1}{3}\pi\ ft^{3}$

6 0

4 years ago

Alisa bought 3 shirts for $29 each and then spent $15 on lunch. She has $31 left. How much money did she have before?

pentagon [3]

Answer:

$133

Step-by-step explanation:

Let x = amount of money she had before she spent any money.

x - 29 - 29 - 29 - 15 = 31

x - 102 = 31

x = 133

Answer: She had $133.

8 0

3 years ago

Read 2 more answers

HELP ITS ABOUT POINTS AND EQUATIONS AND WHAT THE PERSON FAILED IN DOING EXPLANATION NEEDED PLEASE

katen-ka-za [31]

Answer:

see below

Step-by-step explanation:

First find the slope

m= ( y2-y1)/(x2-x1)

= (-5- -7.5)/ ( 2 - -3)

= (-5+7.5) / ( 2+3)

= 2.5 /5

=1/2

Then using the slope intercept equation of a line

y = mx+b where m is the slope and b is the y intercept

y = 1/2x+b

Using a point from above

-5 = 1/2(2) +b

-5 =1+b

Subtract 1 from each side

-6 = b

We have the y intercept

y = 1/2x-6

Tahlia forget to find the y intercept for the equation

8 0

3 years ago

Read 2 more answers

PLS PLS PLS PLS HELP I WILL GIVE BRAINLIEST!!!!!!!!!!!!

KonstantinChe [14]

Answer:

A. -9, -7, -4, -2, 1, 5

Step-by-step explanation:

A is the only one with the integers listed from least to greatest.

Please mark Brainliest :)

5 0

3 years ago

Read 2 more answers