2 years ago

Please help ASAP

Mathematics

1 answer:

Alisiya [41]2 years ago

5 0

This is hard math is hard

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What is 2x+y=12 and 3x-18=y which are linear equations but need to be solved by elimination

Sidana [21]

Answer:

x=6,y=0

Step-by-step explanation:

2x+y=12

3x-y=18

5x=30

x=6

6(3)-y=18

18-y=18

y=0

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2 years ago

Triangle ABC is similar to triangle DEF.

amid [387]

Answer:

1.5

Step-by-step explanation:

12 / 8 = 1.5

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2 years ago

1. What is( - 1/2 + 2) 2. 4( 1/2+5/4) + (-5) (please answer, I will mark brainliest) :)

Ulleksa [173]

$\longrightarrow (-\dfrac{1}{2} +2)$

$\longrightarrow (-\dfrac{1}{2} +\dfrac{4}{2} )$

$\longrightarrow \dfrac{-1+4}{2}$

$\longrightarrow \dfrac{3}{2}$

$\sf \bold{\longrightarrow 1\dfrac{1}{2}}$ (final answer)

$\longrightarrow \sf 4(\dfrac{1}{2} +\dfrac{5}{4} ) + (-5)$

$\longrightarrow \sf 4(\dfrac{2}{4} +\dfrac{5}{4} ) + (-5)$

$\longrightarrow \sf 4(\dfrac{7}{4} ) + (-5)$

$\longrightarrow \sf 7-5$

$\longrightarrow \bold{\sf 2}$ (final answer)

4 0

1 year ago

Over the last 3 years, salesperson A has earned twice as much as salesper B who in turn has averaged 50% more than salesper C. T

bekas [8.4K]

A has earned twice as much as B so: A=2B
B has averaged 50% more than C so: B=C+0.5C
Combined is 220K, So A+B+C=220,000

The last equation can be re-written as:
2B+1.5C+C=220K
AND since A=2B, it can be rewritten again as:
3C+1.5C+C=220K

Now you can get C finally, since B=1.5C you can get B, then to get the average, just divide that by 3 (years) and you should be done.
So B = 60000 for 3 years

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2 years ago

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Best/correct answer gets brainliest!

Neporo4naja [7]

I think the answer is 12.8 mm

3 0

3 years ago

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