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4 years ago

You are asked to write a single variable equation to solve a word problem with two unknown amounts what do you do

1 answer:

3 0

You'll need to create two equations and have a 'system of equations' then use direct substitution to turn the equation into one. Whichever equation is easiest to solve for x or y. Solve that one for x or y and plug the result in for the variable in the other equation. Then you will have an equation with only 1 unknown.

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In the diagram, lines l and m are parallel lines cut by transversal line p. (5x-20) 85 what is the value of x ?

Semenov [28]

Answer:

The value of x is 23.

Step-by-step explanation:

5x-20+85=180

5x+65=180

5x=115

x=23

6 0

3 years ago

What number is 60% of 98

Shkiper50 [21]

Answer:

The number is 58.8

Step-by-step explanation:

Let

x -----> the number

we know that

The number 98 represent the 100%

using proportion

Find out what number represent the 60% of 98

$\frac{98}{100\%}=\frac{x}{60\%}\\\\x=98(60\%)/100\%\\\\x=58.8$

7 0

3 years ago

3x+1=10 solve each equation.check your soultion -3+8n=-5 4h-6=22

Setler79 [48]

Answer:

3x+1=10, x =3

-3+8n=-5 x =-1

4h-6=22 h =7

hope this helped you out!

4 0

3 years ago

Read 2 more answers

5, 3 = 28 7,6 = 55 4,5 = 21 3,8 = ?

olga nikolaevna [1]

Answer:

3,8 =

Step-by-step explanation:

3 X 3 + 8 = 9 + 8 = 17

Square the first number and add the second number to it.

3 0

3 years ago

Find the slope........

Helen [10]

Answer=B -1/2

the formula for slope is

slope=y2-y1/x2-x1

To solve, lets choose two random points on the line.

(-4,-1) (-2,-2)

slope=y2-y1/x2-x1
slope=-2-(-1)/-2-(-4)
slope=-1/2

3 0

3 years ago

Read 2 more answers