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Lina20 [59]
2 years ago
7

A TV has an original price of $499. Enter the new price after the given percent of change.

Mathematics
1 answer:
Varvara68 [4.7K]2 years ago
6 0

Answer:

$598.8

Step-by-step explanation:

499*1.2

598.8

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Mrs. Kelly creates a garden. She buys 15 flowers and 3 bushes for a total cost of $160.32. Each bush costs $11.50 more than each
m_a_m_a [10]

Each bush costs $18.49

Step-by-step explanation:

Mrs. Kelly creates a garden

  • She buys 15 flowers and 3 bushes for a total cost of $160.32
  • Each bush costs $11.50 more than each flower

We need to find how much each bush costs

Assume that the cost of each flower is $x and the cost of each

bush is $y

∵ She by 15 flowers and 3 bushes for a total cost $160.32

∵ The cost of each flower is $x

∵ The cost of each bush is $y

∴ 15x + 3y = 160.32 ⇒ (1)

∵ Each bush costs $11.50 more than each flower

- That mean equate y by x plus 11.50

∴ y = x + 11.50 ⇒ (2)

Now we have system of equations to solve it

Substitute y in equation (1) by equation (2)

∵ 15x + 3(x + 11.50) = 160.32

- Simplify the left hand side

∴ 15x + 3x + 34.5 = 160.32

- Add like terms in the left hand side

∴ 18x + 34.5 = 160.32

- Subtract 34.5 from both sides

∴ 18x = 125.82

- Divide both sides by 18

∴ x = 6.99

Substitute the value of x in equation (2) to find y

∵ y = 6.99 + 11.5

∴ y = 18.49

Each bush costs $18.49

Learn more:

You can learn more about the system of equations in brainly.com/question/2115716

#LearnwithBrainly

3 0
2 years ago
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Solve for m:3m\5+a=b
Shalnov [3]

Step-by-step explanation:

Assuming:

\frac{3m}{5}  + a = b

subtract a from both sides

\frac{3m}{5}  = b - a

multiply both sides by 5

3m = 5(b - a)

divide both sides by 3

m =  \frac{5(b - a)}{3}

____________________

if,

\frac{3m}{5 + a}  = b

multiply both sides by (5+a), then divide both sides by 3

m =  \frac{b(5 + a)}{3}

3 0
3 years ago
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