Mathematics High School

River C is 300 miles longer than River D. If the sum of their lengths is 5, 570 miles, what is the length of each river? Show ALL work!​

Answers

Answer 1

Answer:

River C. is 3,085 miles long.

River D. is 2,485 miles long.

Step-by-step explanation:

1. Divide 5,570 by 2. Your answer will be 2,785.

2. Add 300 to 1 of your 2,785, and subtract 300 from the other.

3. You will have 3,085 and 2,485. If you add them together, you will have 5,570. This confirms that these two numbers are your answers.

4. You have your answer!

Related Questions

Ronny is selling coffee mugs for $5.00. So far, he has earned $440.00. Ronny needs to earn more than $690.00 in order to meet
his sales goal. How many more coffee mugs, x, does Ronny need to sell in order to reach his sales goal?
Select the number line that includes the fewest number of coffee mugs that Ronny can sell and still reach his sales goal

Answers

Answer:

$250 and 50 mugs

Step-by-step explanation:

690-440 then 250÷5 if that helps

Select all equations that match the solution for this equation: 5(x - 12) = 20

60 + 20 ÷ 5
1/5(60 + 20)
(16 + 20) • 5
(16 - 12) • 5
1/5(75 - 63

Answers

Answer:

The answer is x=16 so whatever the equations should look like it should be this:

Step-by-step explanation: 5(x-12)=20 5x-60=20 add 60 to 20 and get 5x=80 x=16

A digital music player has a retail price of 85$ the percent of markup is 140% what is the final price after the markup? (Show work)

Answers

Answer: $119

Step-by-step explanation:

Let's take this equation

85(n)

n will equal 1.40 as the price mark up is 140%

85(1.40)

$119

What percent of 50 is 36?

Answers

50% of 36 means a half of 36 which is 18

Answer:

72%

Step-by-step explanation:

%/100 = is/of Write formula

x/100 = 36/50 Substitute known values

50x=3600 Cross multiply

/50   /50 Divide both sides by 50 to isolate x

x    =72

Thirty-two is the product of nine and a number decreased by four

Answers

Answer:

28

Step-by-step explanation:

32 - 9 = 23,

24 + 4 = 28

Answer:

28, If you need any more help lmk

Step-by-step explanation:

Which expression is equal to 13/14

14−13

13−14​

14 ÷ 13

13 ÷ 14

Answers

Answer:

Answer: 13÷14 is equal to 13/14

Simplify: 4r342 - 6t2r3 + 3rt - 16

Answers

It’s probably the third one

Answer:

-2r3t2 + 3rt – 16

Step-by-step explanation:

Like terms have the same variables with the same exponents on each variable. Add their coefficients, and keep the same variables and exponents.

HELP, what do I put in the 3 boxes below?

Answers

for the first box u r gonna look at y2 and y1 and simply subtract them
5 - 9 = -4

for the second box ur gonna subtract x2 - x 1
-3 - -10 = -7

for the third box u r gonna divide the answers u got in the previous two boxes
-4 / -7 = 4 / 7

Find the value or measure. Round answers to the nearest hundredth, as needed.

Answers

Don’t click linkkkkkkkkkkkkk

im literally about to smash this computer pelase somebody HELPEEPPEPEPEPP

Answers

Answer:

33920 or 530 im not 100% sure

i think sorry if im wrong

Step-by-step explanation:

please help times running out

Answers

Answer: c

Step-by-step explanation:

Which choice shows the corresponding sides as equal ratios?

Answers

The first one

Because you are dividing the second triangle by the first one

Option A,  DE/AB=EF/BC=DF/AC shows the  corresponding sides as equal ratios

What is Triangle?

A triangle is a three-sided polygon that consists of three edges and three vertices.

Two triangles are said to be similar if their corresponding angles are congruent and the corresponding sides are in proportion .

From the given triangles

In triangle ABC, the lengths AB is 3, BC is 4 and CA is 5.

In triangle DEF, the lengths DE is 6, EF is 8 and DF is 10.

As the two triangles are similar.

DE/AB=6/3=2

EF/BC=8/4=2

DF/AC=10/5=2

So DE/AB=EF/BC=DF/AC=2

Hence, Option A DE/AB=EF/BC=DF/AC shows the  corresponding sides as equal ratios

To learn more on Triangles click:

https://brainly.com/question/2773823

#SPJ2

Guys pls help i only have 20 mins left ;(

Answers

Answer:

1/4

Step-by-step explanation:

Use PhotoMath (:

Answer:

b) 1/4

Step-by-step explanation:

Which graph shows the solution to the system of linear inequalities?

2x – 3y <12

y < –3

Answers

Answer:

D

Step-by-step explanation:

no explination

Can someone please help me with math.

Answers

i would say answer A but i'm not sure if it's right

2{x-3}+3{x+3}={-5} answer plz

Answers

Answer:

x = -8/5 = -1 3/5

Step-by-step explanation:

2{x-3}+3{x+3}={-5}

Expanding the brackets:

2x - 6 + 3x + 9 = -5

5x = -5 + 6 - 9

5x = -8

x = -8/5.

Answer:

x=-8/5 is your answer

Step-by-step explanation:

2{x-3}+3{x+3}={-5}

2x-6+3x+9=-5

5x+3=-5

5x=-5-3

x=-8/5

Make a the subject of the formula v=u+at

Answers

Answer:

a=(v-u)/t

Step-by-step explanation:

v=u+at

subtract u on both sides

v-u=at

divide both sides by t

(v-u)/t=a

or

a=(v-u)/t

Please help me with this!!

Answers

it is 22 because
180°-(68+90) = 22
the answer is 22, 180-158=22

Write the equation of the line that passes through the points (3, -2)
and (5, -9). Put your answer in fully reduced point-slope form,
unless it is a vertical or horizontal line.

Answers

start with determining the slope ((-9 - (-2))/(5 - 3) = -7/2. Now use the point slope formula y - y1 = m(x - x1). y - (-2) = -7/2(x - 3). Distribute the -7/2, y + 2= -7/2x + 21/2. Combine like terms y = -7/2x + 17/2. You can also write this as y = -3.5x + 8.5

Select the two values of x that are roots of this equation.
2x2 + 7x + 6 = 0

Answers

Hopes this helps:

Answer: x = -10/7

1. Simplify 2 • 2 to 4
4 + 7x + 6 = 0

2. Simplify 4 + 7x + 6 to 7x + 10.
7x + 10 = 0

3. Subtract 10 from both sides.
7x = -10

4. Divide both sides by 7.
X = -10/7

Solve for k:
k over 6.12 = 8.7

1. k = 53.244
2. k = 1.42
3. k = 2.58

Answers

Answer:

1. k=53.244 or k=13311/250

Tina realizes that she needs to figure out the answer to the question, "How many groups of 1/12 are in 2?"

Answers

Answer:

24

Step-by-step explanation:

To find how many 1/12 are in 2 divide 2 by 1/12

2/(1/12) = 2 x 12 = 24

Please select the best answer from the choices provided ASAP

Answers

Answer:

c

Step-by-step explanation:

I think the correct answer is C

Find the greatest common factor of 30, 70, and 20.

Answers

The greatest common factor is 10

Answer:

10

Step-by-step explanation:

10 goes into 30, 70, and 20.

find the values of x and y.​

Answers

X=60 Y=60. Hope this helps

Answer:

x= 60° , y = 60 °

Step-by-step explanation:

x = 60°

y = 60°

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hope this will be helpful to you .

if you find it useful.

factor the trinomial 6y^2+19y+15?

Answers

Answer:

6y^2+43

Step-by-step explanation:

6y^2+(19+15)

Answer:

(2y+3)(3y+5)

Step-by-step explanation:

6y^2+19y+15

Factor the expression by grouping. First, the expression needs to be rewritten as 6y^2+ay+by+15. To find a and b, set up a system to be solved.

a+b=19

ab=6×15=90

Since ab is positive, a and b have the same sign. Since a+b is positive, a and b are both positive. List all such integer pairs that give product 90.

1,90

2,45

3,30

5,18

6,15

9,10

Calculate the sum for each pair.

1+90=91

2+45=47

3+30=33

5+18=23

6+15=21

9+10=19

The solution is the pair that gives sum 19.

a=9

b=10

Rewrite 6y^2+19y+15 as (6y^2+9y)+(10y+15).

(6y^2+9y)+(10y+15)

Factor out 3y in the first and 5 in the second group.

3y(2y+3)+5(2y+3)

Factor out common term 2y+3 by using distributive property.

(2y+3)(3y+5)

In the diagram, which two angles are alternate interior angles with angle 14?

4 lines intersect to form 16 angles. The angles created, clockwise from top left are 1, 2, 3, 4; 5, 6, 7, 8; 13, 14, 15, 16; 9, 10, 11, 12.
Angle 4 and Angle 12
Angle 3 and Angle 9
Angle 2 and Angle 10
Angle 12 and Angle 15

Answers

Answer:  Angle 3 and Angle 9

Step-by-step explanation:

Answer:

3 9

Step-by-step explanation:

Pythagoras Theorem

A. x=5
B. x=2square root of 1
C. x=square root of 34
D. x=2square root of 61

Answers

9514 1404 393

Answer:

  B.  x = 2√11

Step-by-step explanation:

The square of the length of the diagonal is ...

  d² = 6² + 8² = 36 +64 = 100

Then the length of x is found from ...

  d² +x² = 12²

  x² = 144 -100 = 44 . . . . . subtract d²

  x = √44 . . . . . . take the square root

  x = 2√11

A jet fighter is capable of reaching speeds up to 1.5 x 10^3 miles per hour. A typical passenger plane can reach speeds of approximately
5.0 x 10^2 miles per hour. About how many times faster can the jet fighter travel per hour than the typical passenger plane?

Answers

Answer:

3 times faster

Step-by-step explanation:

[tex]\frac{1.5(10)^{3} }{5.0(10)^{2}} = \frac{1.5(10)}{5} = \frac{15}{5} = 3[/tex] times faster

What is the volume of the prism, to the nearest cubic inch?

Answers

the volume of the prism is 16

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