Answer:
P = 3
Q = -4
R = 22
Step-by-step explanation:
Expand both sides and compare coefficients.
5Px^2 -PQx +10x -2Q = 15x^2 + Rx +8
Compare coefficients of x^2
5P = 15 => P = 3
Compare constant terms
-2Q = 8
Q = -4
Compare coefficients of x
-PQ + 10 = R
-(3)(-4) + 10 = R
R = 10 + 12 =22
Answer:
of an hour.
Step-by-step explanation:
1. You know that it is from 3:12 p.m. (48 minutes before 4:00 p.m.) to 4:30 p.m. (30 minutes after 4:00 p.m.)
2. Therefore, you must make the following addition:

This is 78 minutes out of 1 hour (60 minutes).
3. Therefore, you have the following fraction:

4. Now, you must reduce the fraction:

5. The answer is 13/10 on an hour.
Answer:
28/81
Step-by-step explanation:
4/9 x 7/9; 2 negatives = a positive so the answer is 28/81
Hope this helps! :)
In short, to convert two fractions to have the same denominator, we simply multiply one by the denominator of the other, so in this case, we'll multiply 1/3 by 5, top and bottom, and 1/5 by 3, top and bottom, thus
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I don’t mean to take point but i do not see a picture :(