All categories

3 years ago

River C is 200 miles longer than River D. If the sum of their lengths is 5580 miles, what is the length of each river?

Mathematics

2 answers:

ycow [4]3 years ago

7 0

5580 minus 200 equals to 5380.
River D is 5380 divided by 2 which is 2690.
River C is 2690 plus 200 which is 2890.

Valentin [98]3 years ago

6 0

Yo sup??

Let the length of river D be x

then the lenght of river C will be 200+x

but,

lenght of river C+lenght of river D=5580

x+x+200=5580

2x=5380

x=2690

Therefore lenght of river D is 2690 and that of C is 2890

Hope this helps

You might be interested in

A box contains four equal-sized cards labeled 1 , 3, 5, and 7. Tim will select one card from the box. What is the probability th

JulsSmile [24]

Answer: 1/4

Step-by-step explanation:

Since the box box contains four equal-sized cards labeled 1 , 3, 5, and 7. The probability of selecting any number out of the four numbers will be 1/4 if they are selected once.

If Tim selects one card from the box, the probability that Tim will select a card labeled 3 will be: = 1/4

This is because 3 only occurs once and there are 4 numbers in total.

7 0

2 years ago

The pendulum swings at an arc of 30 cm and its successive swings reduced to 10% of the previous swings. What is the total distan

OleMash [197]

Answer:

$S_g= 33.333cm$

Step-by-step explanation:

From the question we are told that

Arc of 30 cm

10% reduction after each swing

Generally sum of geometric sequence is given by the equation

$S_g=\frac{a(1-r^n)}{1-r}$

Mathematically solving for total distance traveled we have

$S_g=\frac{30(1-(0.10^5)}{1-(0.10)}$

$S_g=\frac{30}{0.9}$

Therefore the total distance traveled by the pendulum after 5 swings

$S_g= 33.333cm$

3 0

3 years ago

The area of a circle with radius 1 cm is ______________. (Use 3.14 for pi)

Tcecarenko [31]

Answer:

6,28

Step-by-step explanation:

NOT NEEDED FOR THIS QUESTION

7 0

2 years ago

What value of x makes the equation shown true? Show or explain what you did to get your answer. 5x – 1 = 19

Advocard [28]

5x-1=19
1st you add the one over to the 19 and you'll get 20
then you do 5x=20
divide the 5x over to the 20 and your final answer is 4.

5 0

2 years ago

Read 2 more answers

Y = 5x - 1<br> 10x - 2y = 2

Leya [2.2K]

Answer:

0 = 0 => Infinitely many solutions

Step-by-step explanation:

8 0

3 years ago

River C is 200 miles longer than River D. If the sum of their lengths is 5580 ​miles, what is the length of each​ river?

River C is 200 miles longer than River D. If the sum of their lengths is 5580 miles, what is the length of each river?