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3 years ago

11

Max is thinking Of a doubles fact. It has a sum that is greater than the sum of 6+4 but less than the sum 8+5. What fact is max

thinking of?

2 answers:

malfutka [58]3 years ago

8 0

6+6=12 cuz 6 and 6 are the same numbers.
<(-_-)/

mariarad [96]3 years ago

6 0

It is 12 because 6+6=12 and 12 is greater then 10 but less then 13 and 6 is the same number

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Ethanol fuel mixtures have "E" numbers that indicate the percentage of ethanol in the mixture by volume. For example, E10 is a m

liberstina [14]

According to the problem we start with 6000 gal of E10 which means there is 10% of ethanol in this 6000, with ths information we can calculate the amount of ethanol already in the mixture:

$6000gal*0.1=600gal$

The relationship between ethanol and total fluid can be represented like this:

$\frac{600}{6000} =0.1$

Based on this relationship we can build the one that we are looking for:

$E9=9Ethanol91Gasoline=\frac{Ethanol}{Total}=0.09$

$\frac{TotalEthanol}{TotalSolution} =0.09$

the total solution will be:

$TotalSolution=6000+X$

where X is the E5 solution volume

and the TotalEthanol would be:

$TotalEthanol=600+E5Ethanol$

where E5ethanol (5% Ethanol 95% Gasoline) would be:

$\frac{E5Ethanol}{X}=0.05\\E5Ethanol=0.05X$

Now replacing in the relationship we found before:

$\frac{600+0.05X}{6000+X}=0.09$

Solving for X:

$600+0.05X=0.09(6000+X)\\600+0.05X=540+0.09X\\0.09X-0.05=600-540\\0.04X=60\\X=\frac{60}{0.04} \\X=1500$

We should mix 1500 gal of E5 to make an E9 mixture

8 0

3 years ago

PLEASSSSSEEE HELPPP ME

Sonja [21]

I hope this helps you

3 0

3 years ago

the ratio of boys and girls in class is 3:2 Tthere are 15 boys how many total of boys and girls are in class

balandron [24]

Answer: 15 boys and 10 girls

Step-by-step explanation:

15/3=5, so the you have to multiply 2 by 5 to get the number of girls. 2x5=10, so to get the total number of students you add 15+10 which gets you 25 students, but if it’s just asking for girls, then it’s 10.

3 0

3 years ago

Read 2 more answers

Please help!<br><br> Solve for y<br><br> 3x - 7y + 12 = 5x - 9

belka [17]

Answer:

Step-by-step explanation:

3x - 7y + 12 = 5x - 9

-7y = 5x - 3x - 9 - 12

-7y = 2x - 21

7y = 2x + 21

y = 2/7x + 3

3 0

3 years ago

Brianna and let kelci are raising money for a class field trip. Brianna has raised 3 times more money than kelci, but together t

ddd [48]

Let $x be the amount of money which Kelci has raised. <span>Brianna has raised 3 times more money than kelci, then she has raised $3x. Totally both have aised $(x+3x)=$4x.
</span>
Since <span>together they have raised more than $300, then 4x>300,
</span>
$x\ \textgreater \ \dfrac{300}{4}$ .
Answer: the <span>inequality </span><span><span> $x\ \textgreater \ \dfrac{300}{4}$ </span>can be used to determine the amount of money kelci has raised</span>

7 0

4 years ago