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erik [133]
3 years ago
12

Fazla has 30 coins, consisting of quarters and

Mathematics
2 answers:
damaskus [11]3 years ago
7 0

Answer:

10

Step-by-step explanation:

20 quarters: $5 and

10 nickels: 50 cents

20-10=10

Step2247 [10]3 years ago
5 0

Answer:

20 quarters ($5) and 10 nickels ($0.50)

Step-by-step explanation:

Q+ N = 30

Q = 30-N

0.5N + 0.25(30-N) = 5.50

0.5N + 7.50-0.25N = 5.50

-0.20N = -2

N=10            Q=30-N   Q=30-10       Q=20

10*0.5 = 0.50

20*0.25 = 5

5 + 0.5 =  $5.50

     

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F(x)=3x²+4x-1<br>evaluate f(-2)​
gtnhenbr [62]

Answer:

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Zanzabum
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Read 2 more answers
The height (in feet) of punted football is a function of the time the ball is in the air. The function is defined by h(t) = - 7t
Kamila [148]

Answer:

The height of the football after 4 seconds is 80 feet.

Step-by-step explanation:

You know that the height (in feet) of punted football is a function of the time the ball is in the air and it is defined by:

h(t) = -7*t²+48*t

To calculate the height of the ball after 4 seconds, you must replace the time t by the time of 4 seconds:

h(4) = -7*4²+48*4

Solving, you get:

h(4) = -7*16+48*4

h(4) = -112+192

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<u><em>The height of the football after 4 seconds is 80 feet.</em></u>

8 0
3 years ago
Please help me with measurements
levacccp [35]
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4 0
3 years ago
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