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3 years ago

Which of the following should you do first when solving the equation 2x-7=3x-2(x+8)

Mathematics

2 answers:

lora16 [44]3 years ago

4 0

Answer:

You should start the question of by distibuting the group 2(x+8)

Step-by-step explanation:

This is the most imoortant step to start off with because of:

GEMDAS

group, exponent, multiply, divide, add and subtract

Georgia [21]3 years ago

3 0

Answer:

multiply 3x-2(x+8)

Step-by-step explanation:

PEMDAS

also you must simplify both sides to solve this problem and that's the first step to simplifying this side (the other one is simplified)

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the ratio of length, breadth and height of a room is 4:3:1. If 12m^3 air is contained in a room, find the length , breadth and h

Sladkaya [172]

Answer:

length = 4 m

breadth = 3 m

height = 1 m

Step-by-step explanation:

well since it's a ratio we can say that

length = 4x

breadth = 3x

height = 1x

so the volume will be

$V=4x\cdot 3x\cdot x\\\\V=12x^3$

and we know that

$V=12m^3$

so we have

$12m^3=12x^3\\\\1m^3=x^3\\\\x=1m$

so we have

length = 4 m

breadth = 3 m

height = 1 m

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3 years ago

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laiz [17]

Answer:

Step-by-step explanation:

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3 years ago

Y = one-third (x + 2)

tensa zangetsu [6.8K]

Answer:

Step-by-step explanation:

according to the question equation is

y=1/3*(x+2)

y=x+2/3

8 0

3 years ago

Complete the sentence below using one of the words. 'Power, Base, Exponent'

uysha [10]

The number is 10 to the -6 power

6 0

3 years ago

Last month, Bethany sent 5,450 texts. This month she sent 7,085 texts. What was the percent increase in her texting from last mo

yulyashka [42]

Answer:

Hello

The answer is 30% increase in texts since last month.

IF you feel any problem in understanding , do comment pls.

Step-by-step explanation:

Let

X = last month sent texts

y = this month sent texts

First of all find the no. of increased texts,

by subtracting x from y

=> y-x= 7085- 5450

= 1635

We want to find these 15 texts % with respect to 5450 texts

i.e. 1635/X

=0.30

for answer in % multiply with 100

i.e. 30%

3 0

3 years ago