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3 years ago

Debbie has equal numbers of dimes and quarters with a total value of $1.40. How many coins does she have altogether?

Mathematics

2 answers:

vladimir2022 [97]3 years ago

7 0

4 quarters and 10 dimes.Because 4 quarter is a dollar and a dime is worth 10 cents.And 10 x 4 = 40

-BARSIC- [3]3 years ago

3 0

$x=amount\ of\ each\ coin. \\ .25x+.1x=1.4 \\ .35x=1.4 \\ x= \frac{1.4}{.35} \\ x=4\ of\ each\ coin. \\ 4\ quarters\ and\ 4\ dimes. \\ \boxed{8\ coins\ in\ total}$

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3 years ago

Given the figure, if ∠ABC is 20° and C is the center of the circle, what is the measure of the central angle ∠ACB? A) 40° B) 70°

kramer

Answer:

D) 140°

Step-by-step explanation:

The total number of degrees in a triangle is 180. Since both sides of the triangle are the radius of the circle, the triangle is isosceles. Therefore the two opposite angles are equal. Thus, the central angle is 180° − 2(20°) = 140°.

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2 years ago

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Step-by-step explanation:

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3 years ago

In circle K with m JKL = 112 and JK = 13 units find area of sector JKL.

svetoff [14.1K]

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Step-by-step explanation:

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2 years ago

Micheal-anthony and jocelyn are both running around the track at school. michael-anthony runs 3 miles in 20mins and continues ru

alexgriva [62]

Answer:

Jocelyn = 8 Miles an Hour

Micheal-Anthony = 6 Miles a Hour

Jocelyn Run Faster than Micheal-Anthony.

Step-by-step explanation:

Important information:

Michael-Anthony runs 3 Miles in 20 Minutes.

Jocelyn Runs 4 Miles in 30 Minutes.

Continues at pace for 1 Hour.

Questions that Need to be Answer:

How many miles does each person each person run in an hour?

Who runs faster?

Explanation/Solution:

So, We know that 1 Hour = 60 Minutes and three 20 minutes equal 60 Minutes also known as 1 Hour..

Since, three 20 minutes equal 1 Hour that means

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Hence, Micheal-Anthony Run 9 Miles..

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Since, two 30 Minutes equal 1 Hour that means

Jocelyn Run 8 Miles a Hour adding the 30 Minutes equal 12 Miles

Hence, Jocelyn Run 12 Miles..

For these Reason, You can tell that Jocelyn Run 8 Miles an Hour and Micheal-Anthony Run 6 Miles a Hour and Jocelyn Run Faster than Micheal-Anthony.

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2 years ago