3 years ago

Solve each of these equations. 1. 2(x+5)=3x+1 2. 3y−4=6−2y 3. 3(n+2)=9(6−n)

Mathematics

1 answer:

Anastasy [175]3 years ago

6 0

Answer:

1. x=9

2. y=2

3. n=4

hello just helping out!

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What is the surface are of a rectangular prism of the length is 18cm the width 6cm and the height 3cm

Harlamova29_29 [7]

The surface area of rectangular prism is 360 square inches

Solution:

Given that rectangular prism of the length is 18 cm the width 6 cm and the height 3 cm

To find: Surface area of rectangular prism

The Surface area of rectangular prism is given by formula:

$A=2(wl+hl+hw)$

Where,

"l" is the length and "h" is the height and "w" is the width of prism

From given,

l = 18 cm

w = 6 cm

h = 3 cm

Substituting the values in formula,

$A = 2((6 \times 18) + (3 \times 18) + (3 \times 6))\\\\A = 2(108+54+18)\\\\A = 2 \times 180\\\\A = 360$

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