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grin007 [14]
3 years ago
7

Match the exponential expression with its rule:

Mathematics
1 answer:
mina [271]3 years ago
6 0
1.=d 
2.=a
5.=b
4.=e
3.=c
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24 %<br><br> 89.5 %<br><br> 10.5 %<br><br> 76 %
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Answer:

A

Step-by-step explanation:

I believe the answer is A. Good luck on your test!

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James and Kelly have $10 to spend at a grocery store. If they get 3 avocados
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Its gonna be a dollar mate
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3 years ago
Factorise 18x-6 <br><br> will give brainly to whoever answers first
Sladkaya [172]

Answer:

6(3x-1)

Step-by-step explanation:

They both have a common factor of 6

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6 0
2 years ago
Myra is a scientist and needs 45 gallons of a 16% acid solution. The lab is currently stocked only with a 20% acid solution and
asambeis [7]

Answer:

The volume of the solution with 20% acid is 27 gallons and the one with 10% acid is 18 gallons

Step-by-step explanation:

Myra needs to mix "x" gallons of the solution with 20% and "y" gallons of the solution with 10%. The volume of the final solution must be 45 gallons, therefore:

x + y = 45

The concentration of acid of the final solution is:

0.2*x + 0.1*y = 45*0.16

0.2*x + 0.1*y = 7.2

Therefore we have a system of equation:

x + y = 45

0.2*x + 0.1*y = 7.2

We need to multiply the first equation by -0.1:

-0.1*x -0.1*y = -4.5

0.2*x + 0.1*y = 7.2

We now sum both equation:

0.1*x = 2.7

x = 2.7/0.1 = 27 gallons

y = 45 - 27  = 18 gallons

6 0
3 years ago
I really need an a answer again Srry for wasting ur time... but I need an answer quick
defon

Answer:

400m

7000000km

25000m

Step-by-step explanation:

Meter to Kilometer is x1000

kilometer to meter is ÷1000

5 0
3 years ago
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