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Soloha48 [4]
3 years ago
9

How many gallons of 80% antifreeze solution must be mixed with 80gallons of 20% antifreeze to get a mixture that is 70% antifree

ze
Mathematics
1 answer:
kvasek [131]3 years ago
5 0
X=360 GALLONS OF 80% ANTIFREEZE IS USED
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Can any equation in point-slope form also be written in slope-intercept form?
Gekata [30.6K]

Answer:

Yes

Step-by-step explanation:

The way the equation is written in point-slope form is:

y-y1=m(x-x1)

The way we write an equation in slope-intercept form is:

y=mx+b

We can change point-slope form to slope-intercept form by first distributing the m and then adding y1 to both sides of the equation. When we do this we will get:

y=mx-(m*x+y1) where (m*x+y1) = b

which is now in slope intercept form.

3 0
2 years ago
NEED AN ANSWER ASAP
Yuki888 [10]

Step-by-step explanation:

When X is - 5 then y is 3

When X is-1 then y is - 2

When X is 3 then y is -4

6 0
3 years ago
How can one fourthx − 3 = one halfx + 8 be set up as a system of equations?
Delvig [45]
<span>The answer is B.

The reason being is that in this option they have set both sides of the equation separately equal to y. Since they are equal to each other, they would both have to be equal to an unknown y. This would look like this.
y = 1/4x - 3
y = 1/2x + 8.

Then to remove the fractions in each, they multiplied by the denominator associated with x. So, you multiply the first equation by 4.
4y = x - 12.
Then they solve for the numerical value at the end.
4y - x = -12.

You can do the same with the second equation.
y = 1/2x + 8
2y = x + 16
2y - x = 16

These are now the two equations above. </span>
6 0
3 years ago
What is 0.277 rounded to the nearest hundredth?
poizon [28]
It's  0.28 because 7 is greater than 4 so you round the number before that up by 1
7 0
3 years ago
Read 2 more answers
Which of the following would be equivalent to 11 to the 8th power over 11 to the 3rd power?
myrzilka [38]
None of the above. 11^8/11^3 is 11^5 since you will just subtract exponents. The numerical value is 161051
although you should have an option that either is 11^5 or equals 11^5 like 11^15/11^10 for example
3 0
2 years ago
Read 2 more answers
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