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3 years ago

Five times the sum of a number and 4 is 9

Mathematics

1 answer:

Mazyrski [523]3 years ago

6 0

Answer:

5x+4=9

Step-by-step explanation:

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The table shows the value of an account x years after the account was opened. Based on the exponential regression model, which i

lana66690 [7]

Answer:

Correct choice is B

Step-by-step explanation:

The exponential regression model can be written as exponential function

$y=a\cdot b^x.$

Then

$5,000=a\cdot b^0=a,\\ \\5,510=a\cdot b^2\Rightarrow 5,510=5,000\cdot b^2,\\ \\b^2=\dfrac{5,510}{5,000}=\dfrac{551}{500}\Rightarrow b\approx 1.05.$

Thus,

$y=5,000\cdot (1.05)^x.$

When $x=12,$ you get

$y(12)=5,000\cdot (1.05)^{12}\approx \$8,980.$

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4 years ago

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In a sale normal prices are reduced by 10%

astraxan [27]

in sale normal prices are reduced by 10% nathaile bought a pair of shoes in the sale for $54 10% of 54 is 59.4

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3 years ago

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A box is 50 cm long. Which of these is closest to the length of this box in feet? (1 inch = 2.54 cm)

goblinko [34]

First, convert cm to inches.

50/2.54 is roughly 19.69

There are 12 inches in a foot, so divide the 19.69 by 12.

19.69/12 is roughly 1.64

So the answer is C

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4 years ago

a square garden has an area of 225 square feet. how much fencing will a gardener need to buy in order to place fencing around th

IgorC [24]

The gardener will need to buy 60 feet of fencing. Because the square root of 225 if 15, and 15 times 4 is 60. So, 60 is the perimeter of the garden.

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3 years ago

Fifteen percent of an employee's taxable income is collected each paycheck. Before taxes are removed from each paycheck,

aleksklad [387]

Answer:

y = x [1- $\frac{15}{100}$ ]

Step-by-step explanation:

If the variable x represents the employee's pay before tax-exempt expenses and taxes are removed and y variable represents the employee's take-home pay after these deductions and if fifteen percent of an employee's taxable income is collected each paycheck, then y is given by

y = x [1- $\frac{15}{100}$ ]. (Answer)

For, example, an employee's payment is deducted by $350 at the rate of 15% tax and other deduction.

Therefore, $\frac{15x}{100}=350$ , ⇒ x = $2333.33 is the before tax income of the person.

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3 years ago

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