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tresset_1 [31]
3 years ago
15

A color called passion pink is made by making red paint and white paint in a ratio 2 to 7. How many drops of white paint do you

need if you use 3 drops of red paint?
Mathematics
2 answers:
Rama09 [41]3 years ago
8 0
You need 4 drops of white
Sonbull [250]3 years ago
6 0
The answer is supposed to be 10.5 because
When 2 red is used then 7 white do
If 3 is used then
Red 2 3
White. 7. 10.5
Ok so working here
Since we know when 2 red is used we use 7 white then how much red left? 3-2= 1 red left so one red will equal to how much white?
So then one red has to equal to 3.5 white since u dividing to find into half since it is only two red


U gotta follow on a price of paper then u will only understand
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Answer:

So, equation using the given information :

5 is subtracted from a number the result is the same as the number tripled will be: x-5=3x

Step-by-step explanation:

We need to make an equation of: 5 is subtracted from a number the result is the same as the number tripled.

Let, the number be x

5 is subtracted from a number will be: x-5

The number tripled will be: 3*x

The required equation will be:

x-5=3x

So, equation using the given information :

5 is subtracted from a number the result is the same as the number tripled will be: x-5=3x

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One satellite is scheduled to be launched from Cape Canaveral in Florida, and another launching is scheduled for Vandenberg Air
Lisa [10]

Answer:

P(A) = 0.45

P(B) = 0.32

Step-by-step explanation:

Given

P(A) > P(B)

P(A\ u\ B) = 0.626

P(A\ n\ B) = 0.144

Required

Find P(A) and P(B)

We have that:

P(A\ u\ B) = P(A) + P(B) - P(A\ n\ B) --- (1)

and

P(A\ n\ B) = P(A) * P(B) --- (2)

The equations become:

P(A\ u\ B) = P(A) + P(B) - P(A\ n\ B) --- (1)

0.626 = P(A) + P(B) - 0.144

Collect like terms

P(A) + P(B) = 0.626 + 0.144

P(A) + P(B) = 0.770

Make P(A) the subject

P(A) = 0.770 - P(B)

P(A\ n\ B) = P(A) * P(B) --- (2)

0.144 = P(A) * P(B)

P(A) * P(B) = 0.144

Substitute: P(A) = 0.770 - P(B)

[0.770 - P(B)] * P(B) = 0.144

Open bracket

0.770P(B) - P(B)^2 = 0.144

Represent P(B) with x

0.770x - x^2 = 0.144

Rewrite as:

x^2 - 0.770x + 0.144 = 0

Expand

x^2 - 0.45x - 0.32x + 0.144 = 0

Factorize:

x[x - 0.45] - 0.32[x - 0.45]= 0

Factor out x - 0.45

[x - 0.32][x - 0.45]= 0

Split

x - 0.32= 0 \ or\ x - 0.45= 0

Solve for x

x = 0.32\ or\ x = 0.45

Recall that:

P(B) = x

So, we have:

P(B) = 0.32 \ or \ P(B) = 0.45

Recall that:

P(A) = 0.770 - P(B)

So, we have:

P(A) = 0.770 - 0.32 \ or\ P(A) =0.770 - 0.45

P(A) = 0.45 \ or\ P(A) =0.32

Since:

P(A) > P(B)

Then:

P(A) = 0.45

P(B) = 0.32

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Soloha48 [4]

Answer:

4

Step-by-step explanation:

11 + 28 - 25 - 10

39 - 25 - 10

14 - 10

4

Remember PEMDAS (Parentheses, Exponents, Multiply, Divide, Add, Subtract)

4 0
3 years ago
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