Answer:
- The rate of planes: 926 km/h and 860 km/h
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<h3>Given</h3>
- Two planes travel in opposite directions,
- One plane travels 66 km/h faster than the other,
- The distance between the two planes after 6 hours is 10716 km.
<h3>To find</h3>
- The rate of of each plane
<h3>Solution</h3>
The distance traveled by two planes in an hour is:
Let the rate of one plane be x, then the other plane's rate is x - 66.
The sum of two rates is the distance traveled in one hour:
- x + x - 66 = 1786
- 2x - 66 = 1786
- 2x = 1786 + 66
- 2x = 1852
- x = 1852/2
- x = 926
So the rate of one plane is 926 km/h and of the other plane is:
Answer: the 10th term is 4.1
Step-by-step explanation:
The sum is +0.4 each time.
1=0.5
2=0.9
3=1.3
4=1.7
5=2.1
6=2.5
7=2.9
8=3.3
9=3.7
10=4.1
Answer: Daria earns a fixed amount of $55 for each television.
Step-by-step explanation:
Let a represent the fixed amount that Daria earns for each television.
Daria earns a fixed amount for each television and an additional $25 if the buyer gets an extended warranty. This means that if she sells b televisions with extended warranties, the total amount that she would earn is
ab + 25b
If Daria sells 14 televisions with extended warranties,she earns $1,120. Therefore,
14a + 14 × 25 = 1120
14a + 350 = 1120
14a = 1120 - 350
14a = 770
a = 770/14
a = 55
Answer:
21
Step-by-step explanation:
This answer would be 10m+50. To distribute, you would multiply each thing in the parenthesis, by the ten. So 10 times m would be 10m and 10 times a positive 5 would be 50.