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Trava [24]
2 years ago
7

12 is what percent of 14?

Mathematics
1 answer:
pentagon [3]2 years ago
8 0

Answer:

<em>12</em><em> </em><em>is</em><em> </em><em><u>85.714285714286%</u></em><em> </em><em>of</em><em> </em><em>1</em><em>4</em><em>.</em>

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PLEASE HELP ASAP!!!!
lina2011 [118]
<h3>Answer:</h3>

System

  • p + m = 10
  • 0.8m = 0.4·10

Solution

  • p = m = 5 — 5 lb peanuts and 5 lb mixture
<h3>Step-by-step explanation:</h3>

(a) Generally, the equations of interest are one that models the total amount of mixture, and one that models the amount of one of the constituents (or the ratio of constituents). Here, there are two constituents and we are given the desired ratio, so three different equations are possible describing the constituents of the mix.

For the total amount of mix:

... p + m = 10

For the quantity of peanuts in the mix:

... p + 0.2m = 0.6·10

For the quantity of almonds in the mix:

... 0.8m = 0.4·10

For the ratio of peanuts to almonds:

... (p +0.2m)/(0.8m) = 0.60/0.40

Any two (2) of these four (4) equations will serve as a system of equations that can be used to solve for the desired quantities. I like the third one because it is a "one-step" equation.

So, your system of equations could be ...

  • p + m = 10
  • 0.8m = 0.4·10

___

(b) Dividing the second equation by 0.8 gives

... m = 5

Using the first equation to find p, we have ...

... p + 5 = 10

... p = 5

5 lb of peanuts and 5 lb of mixture are required.

8 0
3 years ago
Which angle is adjacent to ZCGD?<br> B<br> G<br> с<br> D<br> E
jek_recluse [69]
Can you give more details please
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3 years ago
If cosX = -0.2, and x is in quadrant II, then what it the value of sinX​
Tems11 [23]

\sin x>0 when x is in quadrant II, so

\cos^2x+\sin^2x=1\implies\sin x=\sqrt{1-\cos^2x}=\sqrt{1-(-0.2)^2}\approx1.02

7 0
3 years ago
Read 2 more answers
Help help help help <br> Answer please
Ludmilka [50]

Answer:

Mark talked on the phone for 120 minutes.

Step-by-step explanation:

18 - 12 = 6

6 ÷ .05 = <u>1</u><u>2</u><u>0</u>

6 0
2 years ago
Approximately what portion of the box is shaded blue?<br><br> A.2/3. B.9/10<br> C.3/5
OLga [1]
The answer should be b 9/10
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