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luda_lava [24]
3 years ago
8

**YOU WILL GET A THANKS, 11 POINTS, INCLUDING A HAPPY STUDENT**

Mathematics
2 answers:
Semmy [17]3 years ago
8 0

320 was the difference in Cheyenne's score

Darina [25.2K]3 years ago
7 0

The difference is 320

I got this by subtracting 420 and 100

420 - 100 = 320

Hope this helps

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two cars travel at same speed to different destinations. car A reaches its destination in 24 minutes. car B reaches its destinat
Harlamova29_29 [7]

Answer:

The speeds of the cars is: 0.625 miles/minute

Step-by-step explanation:

We use systems of equations in two variables to solve this problem.

Recall that the definition of speed (v) is the quotient of the distance traveled divided the time it took : v=\frac{distance}{time}. Notice as well that the speed of both cars is the same, but their times are different because they covered different distances. So if we find the distances they covered, we can easily find what their speed was.

Writing the velocity equation for car A (which reached its destination in 24 minutes) is:

v\,*\,24\,min=d_A

Now we write a similar equation for car B which travels 5 miles further than car A and does it in 32 minutes:

v\,*\,32\,min=d_A+5\,miles

Now we solve for d_A in this last equation and make the substitution in the equation for car A:

v\,*\,32\,min=d_A+5\,miles\\d_A=v\,*\,32\,min-5\,miles\\\\v\,*\,24\,min=v\,*\,32\,min-5\,miles\\v\,(24\,min-32\,min)=-5\,miles\\v\,(-8\,min)=-5\, miles\\v=\frac{-5}{-8} \frac{miles}{min} \\v=0.625\,\frac{miles}{min}

So this is the speed of both cars: 0.625 miles/minute

3 0
3 years ago
Susie walk 10 miles each week. she has already walked 3 miles this week and expects to walk 100 miles how long will it take her
Ratling [72]

Answer:

10 weeks

Step-by-step explanation: 100÷10=10

big brain

7 0
2 years ago
Read 2 more answers
I etavidewifdwcvefoewf
azamat

I’m not sure what that meant.

6 0
3 years ago
Read 2 more answers
Two sides of a triangle have lengths 6 and 18. Which expression describes the length of the third side?
eimsori [14]
I believe you have to multiply 6 by 8 which gives you the answer of 48.
3 0
3 years ago
Ms.Yoshino went todo they mall forma 45 minutes. At the mall de went to a candy store and bought 5 2/3 lbs each of 12 types of c
tigry1 [53]

Answer:

The cost of total quantity of candy bought is $578  

Step-by-step explanation:

given in question as :

The quantity of candy bought = 5 \frac{2}{3} =  \frac{17}{3} lbs

The types of candy bought = 12

So the total number of candy bought = 12 × \frac{17{3} lbs

Or, the total number of candy bought = 68 lbs

∵ 1 lbs = 1 pound

So, 68 lbs = 68 pound

As the price of 1 pound = $8.50

∴ The price of 68 pounds = $ 8.50 × 68 = $578

Hence the cost of total quantity of candy bought is $578   Answer

7 0
3 years ago
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