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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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10 to the power of 4 as a decimal
Nonamiya [84]

Answer:

You treat it as 10^4 (the small number is the number of zeros. Therefore the answer is 10000. Or of you meant 10^-4. Its the same concept, just reversed. So the answer in this case is 0.0004.

Cheers! :)

3 0
3 years ago
Does anybody know the answer please.
wariber [46]

Answer:

The sign of each y-coordinate changed.

Step-by-step explanation:

This was a reflection over the x-axis.

If you look at point F, it is (-5, -1) the corresponding point F' is (-5,1).  Notice the numerical values of x and y are the same, but the sign of y flipped from negative to positive. The other four points all follow the same pattern.

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3 years ago
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Solnce55 [7]

Answer:

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Step-by-step explanation:

r(x) = 3/2x+8

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3 years ago
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Approximately what portion of the box is shaded blue?<br> A.3/5<br> B.2/3<br> C.9/10
BaLLatris [955]

Answer:

I think the answer is C.....

6 0
3 years ago
Determine whether each relation is a function. Give the domain and range for each relation.
brilliants [131]

Answer:

Not a function

Domain: {3,4}

Range: {4,5}

Step-by-step explanation:

A function is a relation where each input has its own output. In other words if the x value has multiple corresponding y values then the relation is not a function

For the relation given {(3, 4), (3, 5), (4, 4), (4, 5)} the x value 3 and 4 have more than one corresponding y value therefore the relation shown is not a function

Now let's find the domain and range.

Domain is the set of x values in a relation.

The x values of the given relation are 3 and 4 so the domain is {3,4}

The range is the set of y values in a relation

The y value of the given relation include 4 and 5

So the range would be {4,5}

Notes:

The values of x and y should be written from least to greatest when writing them out as domain and range.

They should be written inside of brackets

Do not repeat numbers when writing the domain and range

3 0
3 years ago
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