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gavmur [86]
3 years ago
6

Help? i do not understand how to get the answer...​

Mathematics
1 answer:
Oduvanchick [21]3 years ago
6 0

Answer:

A

Step-by-step explanation:

Let x ml be the amount of paint color B mixed with 40 ml of paint color A.

In 40 ml of paint color A are 15% of black pigment, so there are

0.15\cdot 40\ ml

of black pigment.

In x ml of paint color B are 60% of black pigment, so there are

0.6\cdot x\ ml

of black pigment.

In total we het x+40 ml of mixture. There are 25% of black pigment that is

0.25\cdot (x+40)\ ml.

Thus,

0.15\cdot 40+0.6\cdot x=0.25\cdot (x+40).

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Patty because she has the lowest time out of them all. From least to greatest Patty would be the least with her time being shorter than the rest
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3 years ago
Subtract-5 from the additive inverse of 4​
gavmur [86]

Answer:

-9

Step-by-step explanation:

        The additive inverse of 4 is -4. Why? 4 + -4 = 0

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5 0
2 years ago
Read 2 more answers
Tom bought 3 gallons of grey paint and 2 gallons of red paint. Grey paint is $24.59 per gallon and red paint is $37.99 per gallo
tigry1 [53]

Answer:

The red will cost him more by $2.21

Step-by-step explanation:

First you multiply the amount of gallons of grey paint and the cost and you get 24.59 x 3= 73.77

The do the same for red

37.99 x 2= 75.98

the red is going to cost him more by 75.98-73.77=  $2.21

6 0
3 years ago
Tony flips a coin and gets heads. He tells his friend that he can get heads two more times in a row .what is the probability tha
Sergio [31]

Answer:

The probability is 1/8 or 0.125

Step-by-step explanation:

In this question, we are concerned with calculating the probability that when a coin is flipped there would be a show of heads three times.

In flipping of a coin, there are only two possible results with equal probability. The probability of both events i.e P(H) and P(T) is equal and that is 1/2

Thus the probability of getting heads three times in a row will be P(HHH) meaning P(H) and another P(H) and another P(H)

When we have and in a probability question, that means we are to multiply the probabilities together.

Hence, P(HHH) = 1/2 * 1/2 * 1/2 = 1/8

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Mkey [24]

Answer:

$424

Step-by-step explanation:

Find area of all surfaces to be covered

20 x 30 = 600 ceiling

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3200/400 = 8 gallons of paint x $53 = $424

3 0
3 years ago
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