Substitute the variables for the values given.
9 + 11(2) - 4(7) =
9 + 22 - 28 =
31 - 28 =
3
So, 3 is the answer.
The answer is B, and here's why. Set up a table for "there" and "back" and use the distance = rate * time formula, like this:
d r t
there d 450 t
back d 400 1-t
Let me explain this table to you. The distance is d, we don't know what it is, that's what we are actually looking for. We only know that if we go somewhere from point A to point B, then back again to point A, the distance there is the same as the distance back. Hence, the d in both spaces. There he flew 450 mph, back he flew 400 mph. If the total distance was 1 hour, he flew an unknown time there and one hour minus that unknown time back. For example, if he flew for 20 minutes there, one hour minus 20 minutes means that he flew 60 minutes - 20 minutes = 40 minutes back. See? Now, because the distance there = the distance back, we can set the rt in both equal to each other. If d = rt there and d = rt back and the d's are the same, then we can set the rt's equal to each other. 450t = 400(1-t) and
450t = 400 - 400t and 850t = 400. Solve for t to get t = .47058. Now, t is time, not the distance and we are looking for distance. So multiply that t value by the rate (cuz d = r*t) to get that the distance one way is
d = 450(.470580 and d = 211. 76 or, rounded like you need, 212.
Answer:
6 orders of the 10 burrito special
Step-by-step explanation:
10 burritos for $12
60 burritos for $72.
6 burritos for $7.50
10 burritos for $75
So the 10 burritos for $12 is better.
Hope this helps :D
815 x 360 = 293,400 gal per second.
293,400 gal ÷ 4 quarts = 73,350 quarts per sec.
I'm fairly certain that's right - someone correct me if I'm mistaken.
The amount loaned at the interest rate of 11% is $3000.
The amount loaned at the interest rate of 7% is $16,500
<h3>What are the linear equations that represent the question?
a + b = 19500
equation 1</h3>
0.11a + 0.07b = 1485 equation 2
Where:
a = amount loaned at the interest rate of 11%
b = = amount loaned at the interest rate of 7%
<h3>How much was loaned at 11% and 7%</h3>
In order to determine how much was loaned at 7%, take the following steps:
Multiply equation 1 by 0.11:
.11a + 0.11b = 2145 equation 3
Subtract equation 2 from equation 3:
0.04b = 660
Divide both sides by 0.04:
b = 16,500
Subtract 16,500 from 19,500 :
19,500 - 16,500 = $3000
To learn more about interest, please check: brainly.com/question/26164549
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