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nadezda [96]
3 years ago
11

I need the answer for both of the questions

Mathematics
2 answers:
KIM [24]3 years ago
8 0

Answer:

B. and A.

Step-by-step explanation:

I had the same question and for me it was A. and B.

soldier1979 [14.2K]3 years ago
3 0
I think it’s b and a
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2 cars are 700 miles apart. They travel toward each other. One of the cars travels at 75mph, the other travels at 100 mph. How l
olga2289 [7]

Answer: C 4

Step-by-step explanation:

Use the formula: distance = rate x time

We can say that train 1 travels a distance of x, and train 2 travels a distance of 700 - x

The rate of train 1 is 75 mph, and the rate of train 2 is 100 mph

The time traveled for the two trains will be the same. We can represent that with the variable t.

We have the following equation for train 1:

x = 75t

For train 2, we have this equation:

700 - x = 100t

Use the Substitution Method by replacing x in the equation for train 2 with the value 75t.

700 - 75t = 100t

700 = 175t

700/175 = 4 hours.

It will take 4 hours for the two trains to meet.

6 0
3 years ago
A homes value increases at an average rate of 5.5% each year the current value it is $120,000 what function can be used to find
likoan [24]
Around this time many people find home prices going up dramatically. Let's start with the X factor. If we know the starting is $120,000, the we know the initial velocity. To find the final but the very simple equation one may use is; P=(120000)^x\0.5


Cheers
3 0
3 years ago
Really stuck help <br> The picture below is the problem
iren [92.7K]

Answer:

Step-by-step explanation:

figure one

formula length x width x height

plug in 7 x 2 x 3

volume 42 cm^3

figure 2

formula length x width x height

plug in 3 x 2 x 7

volume 42 cm ^3

5 0
2 years ago
A professor has recorded exam grades for 20 students in his​ class, but one of the grades is no longer readable. If the mean sco
Ivenika [448]

Answer:

5

Step-by-step explanation:

To obtain the total score for all the 20 students, we multiply the average score by the number hence

Total score for all 20 is 81*20=1620

Similarly, for the 19 students, the sum of their total score equals the product of the average and number of students hence

Total score for 19 readable is 19*85=1615

The difference between these two total scores ie for 20 and 19 students equals to the value of unreadable score. Therefore,

Difference=1620-1615=5

Therefore, the value of unreadable score is 5

3 0
3 years ago
What is the value of k?
Romashka-Z-Leto [24]

Answer:

k = 10

Step-by-step explanation:

The triangles angels added up must equal 180 degrees, and the top angle is 65 degrees by the 180 degree rule.  

So 10k + 15 must equal the remaining 115

subtract 15 from each side and you get 10k = 100

divide each each by 10 and you get the answer of k = 10

3 0
3 years ago
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