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3 years ago

Share 68 in the ratio 8:9

Mathematics

1 answer:

nalin [4]3 years ago

5 0

Answer:

68:76.5

Step-by-step explanation:

create the ratio 68/x=8/9, then simplify the side you can so get 68/x=.8888... then multiply both sides by x to get rid of the fraction, 68=.8888...x. now divide both sides by .8888... to get x by itself, 76.5=x

if you have any questions, leave them int eh comments and i will try to answer them, if this helped, pls give brainliest

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What Is The Surface Area Of this triangular prism? The Base Of Each Triangle 42m And the height of the triangular base is 20m. (

ehidna [41]

Answer:

The surface area is $2,440\ m^{2}$

Step-by-step explanation:

see the attached figure to better understand the problem

we know that

The surface area of a triangular prism is equal to

$SA=2B+PH$

where

B is the area of the triangular base

P is the perimeter of the triangular face

H is the height of the prism

Find the area of the base B

$B=\frac{1}{2}(42)(20)=420\ m^{2}$

Find the perimeter of the base P

$P=(42+29+29)=100\ m$

we have

$H=16\ m$

substitute the values

The surface area is

$SA=2(420)+100(16)=2,440\ m^{2}$

8 0

3 years ago

Are these right triangles ? Answer please ASAP

V125BC [204]

Answer: Yes.

Step-by-step explanation: Right triangles are 90° and with a square. This is a right triangle. Just remove the line that makes it a triangle, you'll see.

4 0

3 years ago

HELLPPPP!!!

Kamila [148]

A + M = 40

M = 2A + 4

A + 2A + 4 = 40

3A = 40 - 4

3A = 36

A = 12 points

M = 40 - 12

m = 28 points

5 0

3 years ago

I need with 2n-7=5n-10 also

melomori [17]

2n - 7 = 5n -10
-5n -5n
-3n - 7= -10
+7 +7
-3n = -3
-3/-3 -3/-3
n= 1

6 0

4 years ago

Find the product 12 , -5

Nastasia [14]

The product of 12 and -5 is -5(12) = -60. Note that 12(-5) = -60 also.

4 0

3 years ago