3 years ago

Write an equationthen solve.

Mathematics

1 answer:

frozen [14]3 years ago

7 0

$8.25/hour this year
x= hours y= total ($)
y=(5+3.25)x

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3 years ago

What is the area of a trapezoid that has the bases of 1 1/4ft and 14 inches and a height of 3 inches.

Rom4ik [11]

The area of the trapezoid is 43.5 inches²

Step-by-step explanation:

The formula of the area of a trapezoid is $A=\frac{1}{2}(b_{1}+b_{2})h$ , where:

$b_{1}$ and $b_{2}$ are the two parallel bases
h is its height

∵ $b_{1}$ = $1\frac{1}{4}$ feet

∵ $b_{2}$ = 14 inches

∵ h = 3 inches

- Change the length of $b_{1}$ from feet to inches

∵ 1 foot = 12 inches

∴ $1\frac{1}{4}$ feet = $1\frac{1}{4}$ × 12 = 15 inches

∴ $b_{1}$ = 15 inches

Substitute the values of $b_{1}$ , $b_{2}$ and h in the

formula of the area

∴ $A=\frac{1}{2}(15+14)(3)$

∴ A = 43.5 inches²

The area of the trapezoid is 43.5 inches²

Learn more:

You can learn more about the area of figures in brainly.com/question/12919591

#LearnwithBrainly

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4 years ago

A line with a slope of 3 passes through the points (-8,f) and (-9,7). What is the value of f

larisa [96]

Answer:

Step-by-step explanation:

Slope can be calculated by:

$m = \frac{y_2-y_1}{x_2-x_1}$

We know M, y1, x2, and x1. We want to calculate for y2

$\frac{f-7}{-8-(-9)} = 3\\\frac{f-7}{1} = 3\\f-7 = 3\\f = 10\\$

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He needs to pay 30$ to get. 9 packs

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If the solution to the equation is x = -2, find the value of a 4x-2(x-a)= 14

tamaranim1 [39]

x=-2

4x-2(x-a)=14

4*(-2) -2(-2-a)=14

-8+4+2a=14

-4+2a=14

2a=18

a=9

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3 years ago