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Alinara [238K]
3 years ago
9

There are 240 coins in a jar, all dimes and quarters. The value of the coins in the jar is $27.60. There are nine times as many

dimes as there are quarters. How many dimes (d ) are in the jar?
Mathematics
1 answer:
SashulF [63]3 years ago
8 0
I believe it is 28 dimes
.25 × 30 = 7.50
.10 × 190 = 19
19 + 7.50 = 26.50
Then, you add 4 more quarters which is 27.50 and the 28 dime makes it 27.60

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Item 9 a flight averages 460 miles per hour. the return flight averages 500 miles per hour due to a tailwind. the total flying t
Ksenya-84 [330]

Let us say that the variables for flight is designated by 1, while the return flight by 2, since the distance travelled are equal, therefore:

v1 t1 = v2 t2

or

460 t1 = 500 t2

 

Since t1 + t2 = 4.8, therefore: t1 = 4.8 – t2

460 (4.8 – t2) = 500 t2

2208 – 460 t2 = 500 t2

960 t2 = 2208

t2 = 2.3

 

t1= 4.8 – t2 = 4.8 – 2.3

t1 = 2.5

 

Answer:

The flight took 2.5 hours while the return flight took 2.3 hours.

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3 years ago
Solve for z, wz-4/ 5z
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7 0
4 years ago
URGENT! WILL GIVE BRAINLIEST!!!!
user100 [1]
Hello There!

85 / 4 = 21.25

21.25 / 17 = 1.25

Scale factor is 1.25

Hope this helps!
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3 years ago
How much will you save if you buy an item listed at 575.50 at a 30 percent discount?
Alika [10]
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Verdich [7]

Answer:

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Step-by-step explanation:

:)

4 0
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