-4 + 7(1 - 3m) =
-4 + 7 - 21m =
3 - 21m
ANSWER: 2 3/7
EXPLANATION: First you find out how many 7s go into 17. If you put one seven in, you have 10, and if you put two, you have 3. So now you have 2 groups of seven and one 3/7. That's 2 and 3/7.
Hope this helped(: feel free to ask more questions!
X+y = 4, therefore y = 4-x when you rearrange the equation.
You can subsitute this in: x-(4-x) = 6
-4+x = 6-x
x=10-x
2x = 10
x = 5
Substitute x into the previous equation:
5+y = 4
y = 4-5
y = -1
As there are 60 minutes in an hour the rate per minute is 24/60 = 0.4 km/minute.
Distance travelled in 20 minutes = 20*0.4 = 8 km.
Answer:
I think answer is B Altitude
