two friends travel 150 km and 200 km in time 6 hours and 5 hour respectively. what is the ratio of their average speed?

Mathematics

1 answer:

Minchanka [31]3 years ago

5 0

Answer:

Step-by-step explanation:

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How many hours would it take to get from Miami FL to New Hampshire?

bonufazy [111]

It would most likely take 3-4 hours, maybe even 5.

8 0

2 years ago

If 3a-2b= 8 and a+3b=7 what is the value of 4a+b?

Fittoniya [83]

Step 1: Find the value of one variable in terms of the other.

$a+3b=7\\a=7-3b$

Step 2: Substitute the value you just found for this variable in the other equation.

$3a-2b=8\\3(7-3b)-2b=8\\21-9b-2b=8\\21-11b=8\\21=8+11b\\13=11b\\\frac{13}{11}=b\\ b=1\frac{2}{11}$

Step 3: Use your new value for the second variable to find the first.

$a+3b=7\\a+3(1\frac{2}{11})=7\\a+3\frac{6}{11}=7\\\\a=3\frac{5}{11}$

Now that we know the values for a and b we can find the value of 4a+b.

$4a+b\\4(3\frac{5}{11})+1\frac{2}{11}\\12+\frac{20}{11}+1\frac{2}{11}\\\\12+1\frac{9}{11}+1\frac{2}{11}\\\\\boxed{15}$

6 0

3 years ago

PLEASE HELP ME ASAP!!

snow_tiger [21]

point slope form means (y-y1)=m(x-x1)

so u need to find the slope gradient from those 2 points

m=y2-y1/x2-x1

=-6-6/11-7

=-12/4

=-3

and finally x1,y1=7,6

(y-y1) =m(x-x1)