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Svetllana [295]
3 years ago
13

7 x 4 - 20 Answer this 2 mins later (timer on math probs)

Mathematics
1 answer:
xz_007 [3.2K]3 years ago
4 0

Answer:

I think answer is 8.....

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A car is traveling at a rate of 40 miles per hour. what is this speed in feet per minute?
kifflom [539]
I am pretty sure it is 3520 feet per minute.
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3 years ago
Is 0 14 closed under multiplication
Elden [556K]
No because 0x14 would be 0 BUT it is still multiplication.
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If there is a 10% chance of sun tomorrow and a 20% chance of wind and no sun, what is the probability that it is windy, given th
professor190 [17]
Since there are two events happening simultaneously (windy and no sun), we can apply the concept of conditional probability here. P(A|B) = P(A∩B)/P(B) where it means that given B is happening, the probability that A is happening as well is the ratio of the chance for A and B to happen simultaneously over the chance of B to happen. For our case, this can be interpreted as P(A|B): it is the probability that it is windy (A) GIVEN that there is no sun (B) P(A∩B) : chance of wind and no sun P(B) : chance that there is no sun tomorrow The chance of P(A∩B) is already given as 20% or 0.20. Since there is 10% or 0.10 chance of sun, then chances of having no sun tomorrow is (1-0.10) = 0.90. Thus, we have P(A|B) = 0.2/0.9 ≈ 0.22 or 22%. So, answer is B: 22%<span>.</span>
5 0
3 years ago
Read 2 more answers
A construction worker is sent to the store to buy more than 30 lb of roofing nails. The nails are sold in 5 lb boxes and 10 lb b
trapecia [35]

Answer:

The answer is A: 5x + 10y > 30. That is, the combination of boxes must be greater than 30 since the requirement is to have more than 30 lb of nails.

Step-by-step explanation:

The worker can buy a combination of boxes, as long as the total is greater than 30 lb. Multiply 5 lb by x and add that to 10 lb times y to get the total, which must exceed 30 lb.

8 0
3 years ago
A typewriter types 750 words per hour. If she works for 8 hours a day, find the number of words she type
aksik [14]

Answer:

8,000 words

Step-by-step explanation:

If a typewriter types 750 words per hour and she types 8 hours a day she would write 8,000 words a day because 750 x 8 = 8,000.

3 0
2 years ago
Read 2 more answers
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