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3 years ago

Twice a number, decreased by 9 is 12

Mathematics

2 answers:

DiKsa [7]3 years ago

8 0

Answer:

10.5

Step-by-step explanation:

2x-9=12

2x=12+9

2x=21

x=21/2

x=10.5

Serhud [2]3 years ago

7 0

Answer:

10.5

Step-by-step explanation:

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Darina [25.2K]

Answer:

<u><em /></u> $7$ $flowers$ $with$ $4$ $flowers$ $left$ $over$

Step-by-step explanation

$47$ ÷ $6$

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3 years ago

Riley’s Rug Warehouse purchases rugs from the manufacturer for $82.00 each. The manager marks the rugs up 150% and then includes

Volgvan

A customer will pay $225.5 for one rug.

Step-by-step explanation:

Given,

Purchase price of rug = $82.00

Mark up = 150%

Amount of mark up = 150% of purchase price

Amount of mark up = $\frac{150}{100}*82$

Amount of mark up = 1.5*82 = $123

Price of rug after mark up = Purchase price + Mark up

Price of rug after mark up = 82+123 = $205

Sales tax = 10%

Amount of sales tax = 10% of price after markup

Amount of sales tax = $\frac{10}{100}*205=\$20.5$

Selling price = Price after markup + Amount of sales tax

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A customer will pay $225.5 for one rug.

Keywords: percentage, markup

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5 0

3 years ago

Karla invests $300 compounded every 6 months at a rate of 10% for 3 years. At the end of three years, Karla will have $402.03 in

adell [148]

Answer:

Step-by-step explanation:

We would apply the formula for determining compound interest which is expressed as

A = P(1 + r/n)^nt

Where

A = total amount in the account at the end of t years

r represents the interest rate.

n represents the periodic interval at which it was compounded.

P represents the principal or initial amount deposited

From the information given,

P = $300

r = 10% = 10/100 = 0.1

n = 2 because it was compounded 2 times in a year(6 months).

t = 3 years

Therefore,

A = 300(1 + 0.1/2)^2 × 3

A = 300(1 + 0.05)^6

A = 300(1.05)^6

A = $402.03

4 0

2 years ago

Function B is a linear function that goes through the points shown in the

viktelen [127]

Answer:

Step-by-step explanation:

rate of change of function b = (9-1)÷2=4

3 0

2 years ago

PLZ HELP I NEED IT ASAP!

DaniilM [7]

Answer:

Step-by-step explanation:

Since it is going up four and over one you would just simplify 4/1 to just being 4.

6 0

2 years ago

Read 2 more answers