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Katarina [22]
3 years ago
15

5c-20<15c+10 solve inequality

Mathematics
1 answer:
Vinvika [58]3 years ago
7 0
Combine all like terms and use inequality as = sign

5c-20 <15c + 10
Add 20 to each side

5c< 15c + 30

Subtract 15c from each side

-10c < 30

Divide each side by -10

c < -3

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Ms. stone buys groceries for a total of $45.32. she now has $32.25 left. which equation could be used to find out how much money
bezimeni [28]
Let x be the total money she had
So x-45.32=32.25
□ x =45.32+32.25
5 0
3 years ago
Solve for x. Write both solutions, separated by a comma. 8x^2+7x-1=0
Ivan

Answer:

<h2>x = 1/8 , - 1</h2>

Step-by-step explanation:

8x² + 7x - 1 = 0

Rewrite 7x as a difference

That's

8x² + 8x - x - 1 = 0

Factorize

8x( x + 1) - ( x + 1) = 0

(8x - 1)( x + 1) = 0

8x - 1 = 0 x + 1 =0

8x = 1 x = - 1

x = 1/8

The solutions are

<h3>x = 1/8 , - 1</h3>

Hope this helps you

7 0
3 years ago
Callie bought 2 gallons of juice for $2.58 per gallon. She sold the juice in 1-cup servings for $0.75 each. Each serving is 1/16
konstantin123 [22]
2 gallons * $2.58 per gallon = $5.16 expenses (total spent)
2 gallons * 16 cups = 32 total servings
32 cups * $0.75 per cup = $24 gross revenue (total income)
$24 - $5.16 = $19.84 net revenue (profit)
8 0
4 years ago
Read 2 more answers
What is a number line for 5a + 18 &lt; -27?
Alexandra [31]

a < -9

Rearrange:

Rearrange the equation by subtracting what is to the right of the greater than sign from both sides of the inequality :

                    5*a+18-(-27)<0  

Step by step solution :

Step  1  :

Pulling out like terms :

1.1     Pull out like factors :

  5a + 45  =   5 • (a + 9)  

Equation at the end of step  1  :

Step  2  :

2.1    Divide both sides by  5  

Solve Basic Inequality :

2.2      Subtract  9  from both sides

           a < -9

3 0
4 years ago
Read 2 more answers
What is the value of x in this figure?
Arte-miy333 [17]

Answer:

x=48°

Step-by-step explanation:

We two lines cross over each other, making four angles, the angles opposite each other are equal. They're called vertically opposite angles.

8 0
3 years ago
Read 2 more answers
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