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rosijanka [135]
3 years ago
12

Tracie and Marcia drove to Northern California to see Marcia’s sister in Eureka. Tracie drove one hour more than four times as m

uch as Marcia. The trip took a total of 21 driving hours. How many hours did Tracie drive?
Mathematics
1 answer:
Murrr4er [49]3 years ago
5 0
Answer: 17 hours

If you would like further explanation let me know. :)
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How many times does 8 go into 153
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8 goes into 153 19 times.
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5 + {[2 × (14 − 9)] − 1}
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Krystal is comparing two internet service plans. Plan A costs $34.99 per month and plan B costs $ $134.97 every three months. If
Minchanka [31]

Answer:

If Krystal goes with plan A, She will save 120 dollars.

Step-by-step explanation:

Plan A costs 419.88 dollars per year  (34.99*12= 419.88)

Plan B costs 539.88 dollars per year (134.97 * 4 = 539.88)

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7 0
3 years ago
The circular base of a cone has a radius of 5 centimeters. The height of the cone is 12 centimeters, and the slant height is 13
shepuryov [24]

Answer:

Hence, the surface area of cone is:

282.6 cm^2 which is approx 283 cm^2.

Step-by-step explanation:

We are given:

  • The circular base of a cone has a radius of 5 centimeters.

           i.e. r=5 cm.

  • The height of the cone is 12 centimeters

               i.e. h=12 cm.

  • The slant height is 13 centimeters.

                    i.e. l=13 cm.

Now we know that the surface area(S.A.) of cone is given by:

S.A.=\pi r(l+r)

Hence by putting the value of l,r and π in the formula we get:

S.A.=3.14\times 5\times (13+5)\\\\S.A.=15.7\times 18\\\\S.A.=282.6

Hence the surface area of cone is 282.6 cm^2 which is approx 283 cm^2.

4 0
2 years ago
Read 2 more answers
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