4 years ago

(08.01 LC)

Mathematics

1 answer:

ss7ja [257]4 years ago

4 0

Given:

Diameter of circle = 14 inches

To find:

Circumference and area of circle

Solution:

Radius of the circle = 14 ÷ 2 = 7

Circumference = 2πr

= 2 × π × 7

= 14π inches

Area of circle = πr²

= π × 7²

= 49π square inches

Circumference = 14π inches

Area = 49π square inches

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A house painter has an annual income of $35,000 and paid $2,500 in income tax. What percent of her income is the income tax?

almond37 [142]

Answer:

The 7.14% of her income is the income tax .

Step-by-step explanation:

Formula

$Percentage = \frac{Part\ value\times 100}{Total\ value}$

As given

A house painter has an annual income of $35,000 and paid $2,500 in income tax.

Here

Part value = $2500

Total value = $35000

Put in the formula

$Percentage = \frac{2500\times 100}{35000}$

$Percentage = \frac{250000}{35000}$

$Percentage = 7.14\ (Approx)$

Therefore the 7.14% of her income is the income tax .

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Josephina is four years younger than Cameron and the sum of their ages is 88. write an equation and solve it to figure out their

slavikrds [6]

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3 years ago

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Find the point of intersection of the lines 3=6x-y and 3x-2y=24 ?

Svet_ta [14]

$\left \{ {{3=6x-y\ \ |*(-2)} \atop {3x-2y=24}} \right. \\\\ \left \{ {{-6=-12x+2y} \atop {24=3x-2y}} \right. \\+----\\add\ both\ equations\\\\
18=-9x\ \ \ | divide\ by\ -9\\\\
x=-2\\\
y=6x-3=6*(-2)-3=-12-3=-15\\\\
Point\ of\ intersection:\ (-2,-15)$