Find the circumference and area of a circle with a diameter of 10 inches. Leave your answers in terms of pie

Mathematics

1 answer:

AleksAgata [21]3 years ago

7 0

Area: 78.5 inches squared
Circumference: 31.4

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Tarek will spend at most $26 on gifts. So far, he has spent $14. What are the possible additional amounts he will spend?

lord [1]

Answer:

c<$12

Step-by-step explanation:

$26-$14>c

$12>c

c<$12

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2 years ago

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The teacher said that both equations were correct. Explain why?

anyanavicka [17]

Because they are the same equation, just rewritten in a different way.

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A jar is filled with only dimes and quarters. The jar contains a total of 60 coins and the value of the jar is $11.25. How many

inessss [21]

Answer:

35 quarters

Step-by-step explanation:

This situation has two unknowns - the total number of dimes and the total number of quarters. Because we have two unknowns, we will write a system of equations with two equations using the two unknowns.

$d+q=60$ is an equation representing the total number of coins
$0.10d+0.25q=11.25$ is an equation representing the total value in money based on the number of coin. 0.10 and 0.25 come from the value of a dime and quarter individually.

We write the first equation in terms of q by subtracting it across the equal sign to get $d=60-q$ . We now substitute this for d in the second equation.