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Alex17521 [72]
2 years ago
13

James ran a 50 meter race in 7

Mathematics
1 answer:
bulgar [2K]2 years ago
8 0

Answer:

22 3

Step-by-step explanation:

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a dvd costs twice as much as a music cd. Jack buys 2 dvds and 2 cds and spends $45. Determine how much one cd costs. in dollars
VMariaS [17]
dvd=d \\ cd=c \\  \\  \left \{ {{d=2c} \atop {2d+2c=45}} \right.  \\  \\ 2(2c)+2c=45 \\ 4c+2c=45 \\ 6c=45 \\ c=7.5 \\  \\ d=2(7.5) \\ d=15

One CD costs $7.50.
One DVD costs $15.00.
3 0
3 years ago
Read 2 more answers
A giraffe can run up to 46.93 feet per second.how far could a giraffe run in 1.8 seconds? Justify your answer.
Vladimir [108]

if they run 46.93 in 1 second multiply that by 1.8

46.93 x 1.8 = 84.474 feet

round the answer as needed

6 0
3 years ago
The value of 5/121^1/2​
Pavel [41]

Answer:

√5/121

Step-by-step explanation:

formula: a^½=√a

(⁵/¹²¹)^½=√⁵/¹²¹

6 0
2 years ago
You pay 26.50 for an item including 6% sales tax, what was the original price. Show all work please.
Rashid [163]
26.5×.006=value, so you take value ans subtract from 26.5.
6 0
3 years ago
Which is equal to sin 90°?
iris [78.8K]

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0 is sin 90⁰ ...hmmm...kui

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2 years ago
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