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Daniel [21]
3 years ago
8

Describe two reasons for using a variable. Write your response using 4-5 complete sentences.

Mathematics
1 answer:
SVEN [57.7K]3 years ago
6 0
One reason would be if you did not know the answer so you could do
4-5=x
another reason would be if the problem gave you the answer but not one of the things to get the answer
4-x=-1
not sure if that is what you want but I hope this helped
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684303 rounded to nearest thousand
horsena [70]
684,000. This should give you the correct answer as the 4 is the thousands place. Good luck :D
3 0
3 years ago
Sean is driving to visit his friend in another state.In the first hour he travels 1/5 of the total distance. In the second hour
lozanna [386]

Answer:

They live 285 miles apart

Step-by-step explanation:

Let the total distance be x miles

Sean is driving to visit his friend in another state. In the first hour he travels 1/5 of the total distance. This means that he drove x/5 in the first hour. In the second hour he travels 34 miles. That means

Total distance driven in the first and second hour is

(x/5 + 34)miles

He still has 194 miles more to go.

Therefore,

The total distance is the sum of the distance travelled in the first and second hour + the remaining distance.

x = x/5 + 34 + 194

x = x/5 + 228

Cross multiplying

5x = x + 1140

4x = 1140

x = 1140/4 = 285 miles

7 0
3 years ago
Solve the proportion: 65/x = 13/10
Hoochie [10]

Answer:

x=50

Step-by-step explanation:

65/x =13/10

13x=650

x=650/13

x=50

7 0
3 years ago
The product of 7/16, 4/3, and 1/2 is
Eva8 [605]
First, we have two multiply two fractions (7/16 x 4/3) which we do top x top and bottom x bottom which gives us 28/48 

Second, we do 28/48 x 1/2 which is 28/96.

Lastly, we simplify 28/96 which gives us 7/24
4 0
3 years ago
What is the surface area of a cone with a radius of 15 and a height of 8
Rasek [7]

formula is pi*r*(r+sqaureroot(h^2+r^2)


 plug in the numbers and the calculated area is 1507.96

 but since you cant use fraction or decimals

 the answer should be 480PI

8 0
3 years ago
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