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KengaRu [80]
4 years ago
7

Solve for b. -b - 19 = -3b – 9

Mathematics
1 answer:
8090 [49]4 years ago
3 0

Answer:

b=5

Step-by-step explanation:

-b - 19 = -3b – 9

Add 3b to each side

-b+3b - 19 = -3b+3b – 9

2b -19 = -9

Add 19 to each side

2b-19+19 = -9+19

2b = 10

Divide by 2

2b/2 =10/2

b=5

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hey can you help me w/ some math ?? i make $8.50 an hour. monday through sunday only wednesday’s off. how much will i have in 2
enot [183]

Answer:

$29252.1669

Approximately $29252.1

Step-by-step explanation:

For Monday,  Tuesday and Sunday:

=> 8.50 x 5 x 3

=> 8.5 x 15

=> 127.5

I multiplied 8.5 and 5 because you work for 5 hours. Then multiplied them with 3 it is for 3 days.

For Friday, Saturday, Thursday:

=> 8.5 x 6 x 3

=> 8.5 x 18

=> 153

I multiplied 8.5 and 6 because you work for 6 hours. Then multiplied them with 3 because it is for 3 days.

In 1 week you get:

=> 153 + 127.5

=> 280.5

In 1 year there are 52.1429 weeks.

So, you get:

=> 52.1429 x 280.5

=> 14626.08345

For 2 years, you get:

=> 14626.08345x 2

=>  29252.1669

=> Approximately $29252.1

8 0
4 years ago
7. Sam spent $300 on supplies to make earrings that she plans to sell online for $13 each. It
djverab [1.8K]

Answer:

The equation is 10x = 300.

Step-by-step explanation:

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8 0
3 years ago
Write an equation or inequality to represent "five times the difference of a number n and forty two is ten more than twice the p
IRINA_888 [86]

Five times the difference of a number n and forty two is ten more than twice the product of a number x and number y

  • Five times: 5 ×
  • difference of a number n and forty two: (n - 42)
  • is: =
  • twice the product of a number x and a number y: 2(xy)
  • ten more than: + 10

Rewrite the expression into an equation.

<h3>5(n - 42) = 2(xy) + 10</h3>
3 0
3 years ago
Read 2 more answers
PLEASEEE
zzz [600]

Answer:

13.4

Step-by-step explanation:

AB =2DC

So, DC=AB/2

Now, AB/AC=DE/DC

AB/28=13/(AB/2)

AB²=13×28×2

AB=√728

AB=26.98

now, DC=AB/2

=13.4

6 0
3 years ago
Ann purchased a prepaid phone card for $20. Long distance calls cost 11 cents a minute using this card. Ann used her card only o
inn [45]

Answer:

I believe the answer is 33 minutes.

Step-by-step explanation:

20$-16.37 is 3.63$

.11cents × 33 minutes is 3.63$

4 0
3 years ago
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