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3 years ago

Please help me with my math question on volume: prisms and pyramids i will give y a brainly.

Mathematics

2 answers:

Marat540 [252]3 years ago

8 0

Answer:

280 cubic inches. multiply length width height, then add the cubic unit.

lakkis [162]3 years ago

4 0

280 units for the volume

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How old is Sumalee if she was 16 years old<br> thirteen years ago?

nignag [31]

correct me if im wrongg!!!

8 0

3 years ago

Read 2 more answers

3z+8=20<br> Answer <br> 4<br> 10<br> 8<br> 13

yan [13]

Answer: z = 4

Step-by-step explanation:

3z = 20 - 8

3z = 12

z = 12/3

z = 4

Hope this helped!

7 0

2 years ago

Write an equation that gives the proportional relationship of the graph.

melomori [17]

<h3>Answer:</h3>

C) y = 6x

<h3>Step-by-step explanation:</h3>

Pick any point. It is often convenient to use x = 1 (no marked point) or x = 10 (where y = 60).

Use these values to see which equation agrees.

A: 60 ≠ (1/6)·10

B: 60 ≠ 2·20

C: 60 = 6·10

D: 60 ≠ 12·10

____

Or, you can solve ...

... y = kx

for k, using the point values you found on the graph.

... 60 = k·10

... 60/10 = k = 6 . . . . . divide by 10

This makes the equation be ...

... y = 6x . . . . . . matches selection C

4 0

3 years ago

Find the rate of discount for a pair of pants that cost 65$ and are on sell for 39

lutik1710 [3]

Answer: 65 - $39 = $26 >> amount you save

26 / 65 = 0.4 = 40% >> discount rate

Step-by-step explanation:

6 0

3 years ago

Triangle ABC had a perimeter 18 cm

Anna007 [38]

Answer:

Use pythagoreum theorem to determine whether it is or isn't since I'm not really sure myself but here's my calculations.

Step-by-step explanation:

We need to find AC.

Picture a triangle called ABC. AB is one side and BC the other while AC is the hypotenuse.

AC=

$ac = \sqrt{ab ^{2} + {bc}^{2} } \\ ac = \sqrt{ {7}^{2} } + {3}^{2} \\ ac = \sqrt{49 + 9} \\ ac = \sqrt{58 } \\ ac = 7.6$

Round up the 7.6 to a whole number and you get AC=8. To get perimeter of a triangle simply add the sides together to get 18.

Not really sure about my answer but hope this helped.

5 0

3 years ago