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Ulleksa [173]
3 years ago
11

Could you help me with one of them please?

Mathematics
1 answer:
vivado [14]3 years ago
3 0

Answer:

The answer to number seven is 420 km.

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The length of a rectangle is three more than twice it’s width. The perimeter of the rectangle is 246 cm. Write an equation to fi
myrzilka [38]

Answer:

83 cm

Step-by-step explanation:

Let the length of the rectangle be L cm and the width be W cm.

L= 2W +3 -----(1)

Perimeter of rectangle= 2(length) +2(width)

2L +2W= 246 -----(2)

Substitute (1) into (2):

2(2W +3) +2W= 246

Expand:

4W +6 +2W= 246

Simplify:

6W +6= 246

Divide both sides by 6:

W +1= 41

W= 41 -1

W= 40

∴ width of the rectangle is 40cm.

Substitute value of W into (1):

L= 2(40).+3

L= 80 +3

L= 83

Thus, the length of the rectangle is 83 cm.

8 0
3 years ago
Find the x- and y-intercepts of<br> 3x – 4y = 24
Varvara68 [4.7K]
Y= -6
and
x= 8
i hope that helps :)
6 0
3 years ago
A container that holds sugar is shaped like a cylinder. The radius of the container is 3 inches,
kicyunya [14]

Answer:

B

Step-by-step explanation:

A cylinder is like circles staked on top of each other so you want to find the are of the top circle which is 28.26 because pi r^2 (3^2)*3.14. now you found the area of the top circle. The height is 10.5 so that means there are 10.5 layers so you multiply 28.26 by 10.5 i know its confusing im new to brainly but hopefully this answer helped you  You will get 296.73 because i rounded pi to 3.14 but the answer is B

8 0
3 years ago
Gary and Jill both wanted 23 stickers for a class project. There are 3 sheets of 10 stickers and 30 single stickers on the table
julia-pushkina [17]

Gary can take 1 sheet of stickers and 13 single stickers

Jill can take 1 sheet of stickers and 13 single stickers

<em><u>Solution:</u></em>

Given that,

Gary and Jill both wanted 23 stickers for a class project

Which means,

Gary = 23 stickers

Jill = 23 stickers

There are 3 sheets of 10 stickers and 30 single stickers on the table

Therefore,

3 sheets of 10 stickers

Single stickers = 30

Thus we can say,

Gray can take : 1 sheet of sticker (10 stickers ) + 13 single stickers = 23 stickers

Jill can take : 1 sheet of sticker (10 stickers ) + 13 single stickers = 23 stickers

3 0
3 years ago
Trinomial+binomial = what
Elanso [62]

monomial is your answer buddy. Hope this Helps!!

8 0
4 years ago
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