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PtichkaEL [24]
2 years ago
5

Veronica is framing a rectangular picture. She uses 72 inches of framing. The picture is 20 inches long. What is the width of th

e picture?
Mathematics
1 answer:
Marina CMI [18]2 years ago
4 0

Answer:

3.6

Step-by-step explanation:

Using the area of rectangle formula L*W= A

we can plug in our known values

20*w=72

then we can divide 20 on both sides giving us 3.6 inches for width.

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All of the numbers are even so 2

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150 is 200% of what number?
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3 years ago
Victoria recently switched to a new electric company. If she uses between 0 and 400 kilowatt-hours (kWh) of electricity per mont
Gekata [30.6K]

Answer:

see the explanation

Step-by-step explanation:

<em><u>The question is </u></em>

Identify the domain and the range, using words and inequalities

Let

x -----> the number of kilowatt-hours (kWh) of electricity per month

y ----> the price per month

we know that

Part 1) For the value of x between 0 kWh and 400 kWh

0\ kWh \leq x < 400\ kWh

The price is equal to

y=\$30

therefore

The domain is the interval ------> [0,400)

The domain is all real numbers greater than or equal to 0 kWh  and less than 400 kWh

The range is ($30)

The range is equal to $30

Part 2) For the value of x equal to 400 kWh or more per month

x\geq 400\ kWh

The domain is the interval -----> [400, infinite)

The domain is all real numbers greater than or equal to 400 kWh

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y=0.097x

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For x=400 kWh

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so

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7 0
3 years ago
A single tree produces about 2.6 × 10² lb of oxygen each year. The Amazon rainforest has about 3.9 X 10^11 trees.
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(2.6\times10^2) \times (3.9\times10^{11}) = 1.014\times10^{14}

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\frac{1.014\times10^{14}}{365} = 2.77808\times10^{11}
2.77808\times10^{11} <---answer per day

6 0
3 years ago
Read 2 more answers
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