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Usimov [2.4K]
3 years ago
5

Help me out please ;v;

Mathematics
1 answer:
Musya8 [376]3 years ago
3 0
First you rewrite all the expressions like this:
8x+4=(2x+12)+(2x+4)

then you solve and get:
x=3

to solve for AC, you have to solve 8x+4 by replacing x with 3

8x+4 would be rewritten as:
8(3)+4

AC=28
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After 8/15 of an hour, Jane has completed painting 3/5 of the wall. At this rate, how much of the wall will she finish painting
LuckyWell [14K]

Answer:

Step-by-step explanation:

Find the unit rate for this painting:

 3/5 of wall surface            3/5              15            9

------------------------------- = --------------- * --------- = -----------

         (8/15) hour                 8/15             15             8

Jane could actually paint the whole wall plus 1/8 more of it in one hour.

5 0
3 years ago
How do you factorise 14x -21xy
alexandr402 [8]
<span>Simplifying 14x + -21xy
 
Factor out the Greatest Common Factor (GCF), '7x'. 7x(2 + -3y)

Final result:
7x(2 + -3y)
 
that is the answer on how to do it</span>
4 0
3 years ago
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What is the value of the digit 4 in the number 542,897,123
crimeas [40]
10 millions place. This is basic place value.
4 0
4 years ago
Help please hurry......
user100 [1]

All multiples of 15 between 0 and 300,inclusive

How?

\\ \sf\longmapsto f(x)=15x

\\ \sf\longmapsto f(0)=15(0)=0

\\ \sf\longmapsto f(20)=15(20)=300

Hence.

\\ \sf\longmapsto 0\leqslant R_f\leqslant 300

8 0
3 years ago
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What two expressions represent 3/12​?
Goshia [24]

Answer:

A and C

3x1/12= 3/12

3x1/2= 3/12

5 0
3 years ago
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