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Neporo4naja [7]
3 years ago
12

Ms. Groves has trays of paints for students in her art class each tray ahe 5 colours one of the colours is purple what fraction

of the colors in 20 trays is purple
Mathematics
1 answer:
Tatiana [17]3 years ago
7 0
The answer is 4/20 are purple out of 20 trays reduced to 1/5
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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
4 years ago
Regina ate 25 grapes and 15 cashews. Simplify the ratio of grapes to cashews that she ate.
Marysya12 [62]

Answer:

The ratio would be 5 to 3

Step-by-step explanation:

I know this because you would divide the amount of grapes and the amount of cashews by 3 which would equal 5 to 3

8 0
3 years ago
Read 2 more answers
Please help I don’t understand this at all
Natalka [10]

Answer: 33.5

Step-by-step explanation:

8 0
3 years ago
There are 40 tables in a library, with 30% of them seating 4 people. The tables remaining only seat 22 people. How many seats ar
zhannawk [14.2K]
30% of 40 = 0.30(40) = 12......so 12 tables seat 4 people per table = 12 x 4 = 48 seats.......tables remaining seat 22 people (22 seats).
48 + 22 = 70 seats total
8 0
3 years ago
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Mrs. Jones earns $12.50 an hour at her job. She cannot work more than 40 hours in one week because her employer cannot pay overt
Maurinko [17]
M<40 is false statement.

As M equals at least $350 which is greater than $40
4 0
3 years ago
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