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Mathematics 16 Online
OpenStudy (juliannegirltomboy):

Choose the answer. 2. (1 pt) Which is an expression to find the speed in m/s? d = 40 meters, t = 10 seconds A.40/10 B.40x10 C.10/40 D.40+10

OpenStudy (anonymous):

"find the speed in m/s" Tells you right there. :)

OpenStudy (juliannegirltomboy):

how do i do that

OpenStudy (juliannegirltomboy):

is it B

OpenStudy (anonymous):

m/t

OpenStudy (anonymous):

it is A

OpenStudy (anonymous):

and do not accept wrong answer

OpenStudy (juliannegirltomboy):

can you help with 3 more

OpenStudy (anonymous):

sure

OpenStudy (juliannegirltomboy):

What is the value of time, t, for the given values of distance, d, and rate, r? d = 425 m, r = 50 m/s A. 8.5 m B. 8.5 s C. 21,250 m D. 21,250 s

OpenStudy (anonymous):

d/t

OpenStudy (anonymous):

Distance = rate x time Rate = distance/time = speed (rate is speed) = 40/10.

OpenStudy (juliannegirltomboy):

425X50+21,250

OpenStudy (juliannegirltomboy):

that plus should be a equal sighn sorry

OpenStudy (anonymous):

https://www.youtube.com/watch?v=qO0y56BFGWA

OpenStudy (juliannegirltomboy):

425x50=21,250

OpenStudy (juliannegirltomboy):

is it c

OpenStudy (juliannegirltomboy):

or D

OpenStudy (juliannegirltomboy):

are you sure and do you agree @Calamitylikespie

OpenStudy (anonymous):

sorry it is b because it is time

OpenStudy (anonymous):

i'm so sorry

OpenStudy (anonymous):

40/10 is your correct answer.

OpenStudy (anonymous):

Distance = Rate * Time

OpenStudy (anonymous):

it is b =8.5 s for the second question

OpenStudy (juliannegirltomboy):

im on the second one your on first @Calamitylikespie

OpenStudy (anonymous):

Write out the second one, I will try help dear.

OpenStudy (juliannegirltomboy):

What is the value of time, t, for the given values of distance, d, and rate, r? d = 425 m, r = 50 m/s A. 8.5 m B. 8.5 s C. 21,250 m D. 21,250 s

OpenStudy (juliannegirltomboy):

is it D.

OpenStudy (anonymous):

it is B

OpenStudy (anonymous):

i am sure is B, no doubt

OpenStudy (anonymous):

and don't medal me

OpenStudy (juliannegirltomboy):

how did you get b

OpenStudy (anonymous):

i just even send the video link

OpenStudy (anonymous):

The value of time is 8.5 seconds. Choice B. Given: Distance = 425m Rate = 50 m/s Time = ? Time = Distance / Rate Time = 425m ÷ 50 m/s Time = 8.5s Therefore they are correct.

OpenStudy (juliannegirltomboy):

ok

OpenStudy (juliannegirltomboy):

4. (1 pt) Maria's family drove 140 miles to her grandparents' house and averaged 56 mi/h on the way there. On the return trip, they averaged 50 mi/ hr. What was the total time Maria's family spent driving to and from her grandparents' house? A. 2.5 h B. 2.6 h C. 5.2 h D. 5.3 h

OpenStudy (anonymous):

Is it very similar to the first question. Remember that Distance = Rate * Time Time = Distance / Rate Rate = Distance / Time

OpenStudy (juliannegirltomboy):

so 140*50?

OpenStudy (anonymous):

Hmm... holdon a moment.

OpenStudy (anonymous):

The answer would be D; 5.3 h

OpenStudy (anonymous):

bye i'm in class, Calamitylikespie would help you

OpenStudy (juliannegirltomboy):

@Calamitylikespie your right i got same answer

OpenStudy (juliannegirltomboy):

@joojoe bye

OpenStudy (juliannegirltomboy):

here is my last question

OpenStudy (juliannegirltomboy):

5. (1 pt) A train traveled 210 miles in 3.5 hours to its first stop. It then continued on traveling another 130 miles in 2.5 hours. What was the average speed of the train for the entire journey? A. 52 mi/h B. 56 mi/h C. 56.7 mi/h D. 60 mi/h

OpenStudy (anonymous):

One moment, I am solving it.

OpenStudy (juliannegirltomboy):

ok

OpenStudy (juliannegirltomboy):

is it b

OpenStudy (anonymous):

You will divide the total number of miles by the total number of hours.

OpenStudy (anonymous):

The answer is 56.66666666

OpenStudy (anonymous):

So it will be B. Because you will take 340/6.

OpenStudy (juliannegirltomboy):

yep i got same answer so its b

OpenStudy (anonymous):

If you were to round up for the need to be exact, it will be C.

OpenStudy (anonymous):

if you need my help let me know bye

OpenStudy (anonymous):

The exact answer is 56.67.

OpenStudy (juliannegirltomboy):

im waiting for my score i passed

OpenStudy (anonymous):

If you were to round it up it'd be 56.7

OpenStudy (juliannegirltomboy):

thanks for the help

OpenStudy (anonymous):

No problem. I wish I had help with my Trig.

OpenStudy (juliannegirltomboy):

im in middle school so i dont know much about that stuff

OpenStudy (anonymous):

Ah. I'm in 12th grade.

OpenStudy (juliannegirltomboy):

my brother it a freshman in collage

OpenStudy (anonymous):

Yeah. Life's not easy, pretty difficult.

OpenStudy (juliannegirltomboy):

yep

OpenStudy (juliannegirltomboy):

well i got to go take 2 more math test lol bye

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