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AleksAgata [21]
2 years ago
6

1. The area of a circle is 60 square units. What is the area of ...

Mathematics
1 answer:
AVprozaik [17]2 years ago
3 0

Multiply the area of the circle by the percentage:

60 square units x 50% = 60 x 0.50 = 30

50% 0f the circle id 30 square units.

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aleksandrvk [35]

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rodikova [14]

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Step-by-step explanation:

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4 0
2 years ago
A baker, in 70 minutes, iced 40 cupcakes and, in 49 minutes, iced 28 cupcakes. What is the constant of proportionality?
Zinaida [17]

Answer:

\frac{4}{7}

Step-by-step explanation:

The constant of proportionality is the slope of the line joining the two points

(70,40) and (49,28).

Recall the slope formula:

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

We substitute the point to get:

m =  \frac{28 - 40}{49 - 70}  =  \frac{ - 12}{ - 21}  =  \frac{4}{7}

<u>Alternatively</u>:

A proportional relation is given by

y = kx

where k is the constant of proportionality.

Using any point, we substitute and solve for k.

40 = 70k

k =  \frac{40}{70} = \frac{4}{7}

8 0
3 years ago
Becca is paid $10.00 per hour and time-and-a-half for all hours worked over 40 per week.
Amiraneli [1.4K]
10.00+41.75•40  ..........
4 0
2 years ago
Read 2 more answers
The half-life of Carbon-14 is 5730 years. Suppose a fossil is found with 50% of Carbon-14 as compared to a living sample. How ol
melisa1 [442]
The answer is C. Because it takes 5730 years for half of a sample of carbon-14 atoms to decay. It says that 50% of the carbon atoms have decayed so that means that 5730 years have elapsed for that fossil.

I hope that helps.
4 0
2 years ago
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