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skelet666 [1.2K]
3 years ago
15

. The team practice s in a pool that is 30 meters long by 20 meters wide. T he fastest member on the team completes a lap in 22.

5 seconds. H ow long will it take them to complete a lap in an Olympic - size d compe tition pool that is 50 meters long by 25 meters wide if each team member swims at the same rate in both pools ?
Mathematics
1 answer:
LenaWriter [7]3 years ago
7 0
\frac{22.5}{30} = \frac{x}{50} \\\\30x=22.5 (50)\\\\30x=1125\\\\\boxed{x =37.5~seconds}
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Given triangle IMJ with altitude JL, JL = 32, and IL =24, find IJ, JM, LM, and IM.
svetlana [45]
Okay, so I really hope that you can read all my work. I just spent the last 45 mins doing this problem as neatly as possible with as much detail as possible. So, I really hope my work doesn't confuse you. 

My Final Answers were:
JI= 40 units (found using the Pythagorean theorem)
IM= 66.66 units = 66 and 2/3rds (found by dividing the length of JL by the cosine of ∠JIM )
LM=42.66 units = 42 and 2/3rds (found by IM= 24+LM; solve for LM since we know IM=66.66)
JM= 53.33 units= 53 and (1/3rd) (found by using the Pythagorean theorem; this time using JI as "a" and IM as c)

Hope this helped and all made sense!

(Pythagorean theorem is a²+b²=c²)


4 0
3 years ago
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3 years ago
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4 0
4 years ago
An ice cream stand uses the expression 2 + 0.5x2+0.5x2, plus, 0, point, 5, x to determine the cost (in dollars) of an ice cream
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Answer:

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Step-by-step explanation:

As per the statement:

An ice cream stand uses the expression 2+0.5x to determine the cost of an ice cream cone that has x scoops of ice cream.

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Given: x = 5 scoops

We have to find the cost of an ice cream cone with 5 scoops cost.

Substitute the given value of x =5 in [1] we have;

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Therefore, an ice cream cone with 5 scoops cost is, $4.5

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3 years ago
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