MATHEMATICS MIDDLE SCHOOL

Solve for x
-16 = 8x/5


x=-25 3/5
x=10
x=-10

Answers

Answer 1
Answer:

Answer:

x = -10

Step-by-step explanation:

-16 = 8x/5

-80 = 8x

x = -10

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How many 3-digit multiples of 13 are there?

Answers

Answer:

There are 69

Step-by-step explanation:

1+(104-998)/13=69

Using the numbers 2,3,5,8 ounce to make an equation to  equal 104

Answers

Do you mean ounce or once

A street light bulb is fixed on a pole 6m above the level of the street. If a women of height 1.5m casts a shadow of 3m, find how far is she away from the base of the pole

Answers

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2×(6 m - 1.5 m) = 9 m


_____
A diagram can help you see the similar triangles.

Solve for x: 4x² - 4x - 48 = 0

Please show steps!

Answers

4x^2-4x-48, \ 4(x^2-x-12) \n\ 4(x-4)(x+3) \n\ x = 4,-3 
If you have any other questions either comment or PM me ;)

Need help asap. Graph the line: y= -2x +3 use {-1,0,1,2} for x.

Answers

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A boat traveled 504 miles downstream and back. The trip downstream took 14 hours. The trip back took 21 hours. What is the speed of the boat in still water? What is the speed of the current?

Answers

The speed of the boat in still water will be 30 miles per hour and the speed of the current will be 6 miles per hour.

What is the solution to the equation?

The distribution of weights to the variables involved that establishes the equilibrium in the calculation is referred to as a result.

Let the speed of the boat in still water be x and the speed of water be y.

A boat traveled 504 miles downstream and back. The trip downstream took 14 hours. Then the equation will be

x + y = 504 / 14

x + y = 36      ...1

The trip back took 21 hours. Then the equation will be

x - y = 504 / 21

x - y = 24       ...2

Add equations 1 and 2, then the value of x will be

2x = 36 + 24

2x = 60

x = 30 miles per hour

Then the value of y will be

30 - y = 24

y = 6 miles per hour

The speed of the boat in still water will be 30 miles per hour and the speed of the current will be 6 miles per hour.

More about the solution of the equation link is given below.

brainly.com/question/545403

#SPJ2

Answer:

The speed of the boat in still water is 30 mph, and the speed of the current is 6 mph.

Step-by-step explanation:

Let's say b is the speed of the boat in still water, and c is the speed of the current.

Distance = rate × time

Going downstream:

504 = (b + c) × 14

36 = b + c

Going upstream:

504 = (b − c) × 21

24 = b − c

Two equations, two variables.  Solve with substitution or elimination.  To use elimination, add the equations together.

60 = 2b

b = 30

Plug into any equation to find c.

36 = b + c

36 = 30 + c

c = 6

The speed of the boat in still water is 30 mph, and the speed of the current is 6 mph.
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