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Elena-2011 [213]
3 years ago
8

HELP

Mathematics
1 answer:
Inga [223]3 years ago
7 0

Answer:

3.75 quarts, rounded to 3.8 quarts

Step-by-step explanation:

3 quarts of solution is 10% antifreeze, so 0.3 quarts are already antifreeze, and 2.7 quarts are not.

a(the antifreeze we already have)+x(what we're going to add)= 1.5*2.7

Let me explain. If we have 60% antifreeze, 40% is not. 60/40=1.5

Substitute a for 0.3

0.3+x=4.05  Subtract 0.3 from both sides

x=3.75

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How do I do this problem
Vilka [71]
Do you mean 7?

You need to multiply each like term differently ( 1. Coefficient, 2. M term, 3. N term, and 4. O term)

1. The coefficients are 4 and 7, and as you have already solved, that equals to 28.

2. The m terms are (m • m) because there is one m in (4mno) and one m in (mn). m • m would equal to m^2.

3. The n terms are (n • n^2 •n) because there is one n in (4mno), n^2 in (7n^2o^2), and one n in (mn). They would equal n^4.

4. The o term would stay as o^2 as there are not other o terms.

To piece it all together, your answer would be 28m^2n^4o^2, or 28 • m ^2 • n^4 • o^2.
7 0
3 years ago
There are about 30.2 million small businesses in the u.s and about 30,000 other larger businesses. What percent of all businesse
Leni [432]
<h3>Answer:</h3>

99.90%

<h3>Step-by-step explanation:</h3>

STEPS:

  1. Find the total amount
  2. Find out what number of what we want to know the percentage of there are out of the whole amount there is. (Divide the percentage amount we want to find by the total amount)
  3. Turn into a percentage by multiplying by 100

Find the total sum

30.2 mil = 30,200,000 small businesses + 30,000 other = 30,230,000 total

Find the fraction that small businesses make up of the total

\frac{small~businesses}{total~businesses} = \frac{30,200,000}{30,230,000} = 0.9990

Convert to percentage

0.9990 → % = 0.9990 × 100 = 99.90%

Hope this helps,

5 0
3 years ago
Create a visual to show why 5/3 is equivalent to 1 and 2/3?​
Morgarella [4.7K]

I think that 5/3 is not equivalent to this numbers because 2/3 cannot be written in another as 5/3. It can only be written as 6/9 or 4/6. Im not entirely sure but i hope this helped.

5 0
3 years ago
Two fewer than a number doubled is the same as the number decreased by 38. if n is "the number," which equation could be used to
Alona [7]
   
\displaystyle \\ &#10;\text{We use the following equation:} \\  \\ &#10; \frac{n}{2} = n - 38 \\  \\ &#10;We solve for n: \\  \\ &#10; \frac{n}{2} = n - 38 ~~\Big| \times 2 \\  \\  &#10;n = 2 \times  n - 2 \times 38 \\  \\ &#10;n = 2n - 76 \\  \\ &#10;2n - n = 76 \\  \\ &#10;\boxed{n = 76} \\  \\ &#10;\text{Verification: } \\  \\ &#10;\frac{n}{2} = n - 38 \\  \\ &#10;\frac{76}{2} = 76 - 38 \\  \\ &#10;\boxed{38 = 38  ~~~ Correct }



8 0
4 years ago
Ben and his friends are having a TV marathon, and after 4 hours they have watched 5 episodes of the show. About how long will it
nata0808 [166]

Answer:

19.2 hours.

Step-by-step explanation:

There are 60 minutes in an hour.

60 x 4 = 240

There are 240 minutes in 4 hours.

Next, find out how long each episode is.

240 / 5 = 48.

48 minutes is how long each episode is.

48 x 24 = 1152

The entire season would be 1152 minutes.

1152 / 60 = 19.2.

Feel free to let me know if you need more help. :)

8 0
3 years ago
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