Answer:
35 green crayons
Step-by-step explanation:
g is number of green crayons
b is number of blue crayons
g = b + 21
plug in 14 for b:
g = 14 + 21
g = 35
35 green crayons
The answer is 357 hope it helped
Answer:
45 minutes
Step-by-step explanation:
At 30 mph for 1/4 hour, Peter has a 7.5 mile head start. After he leaves, Mitchell closes that gap at the rate of 40-30 = 10 miles per hour. It will take him ...
t = d/s
t = (7.5 mi)/(10 mi/h) = 0.75 h
to catch Peter.
Mitchell will catch Peter in 45 minutes.
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<em>Alternate Solution</em>
Another way to look at it is that Mitchell's 10 mph advantage is 1/3 of Peter's speed, so it will take 1/(1/3) = 3 times the period of Peter's head start:
3 × 15 minutes = 45 minutes . . . for Mitchell to catch Peter
_____
You can write equations involving time and distance and see where the distances traveled become the same. You need to be careful choosing the time reference, since you're concerned with Mitchell's travel time. I personally prefer to work "head start" problems by considering the differences in time and speed, as above. This is where you end up using the equations approach, anyway.
9514 1404 393
Answer:
B, E
Step-by-step explanation:
Like terms are ones that have the same variable, or that have no variable at all.
There are two terms with y as the variable. These are like terms.
There are two constant terms (with no variable). These are like terms.
The like term pairs are ...
- 25y and -0.2y (B)
- -6 and -2 (E)
Answer:
1. attachment↑
its grade 8
Step-by-step explanation:
mark me as brainliest if it helps
