3 years ago

Need help with these problems please.

Mathematics

1 answer:

rosijanka [135]3 years ago

5 0

Answer:

64. 75 degrees fahrenheit had dropped

65. The temperature would be -15 degrees fahrenheit

Step-by-step explanation:

64. 25,000 divided by 1,000 = 25 25 times 3 = 75

65. 60 - 75 = -15

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Find the percent of decrease. Round to the nearest tenth, if necessary. from 49 ft to 22 ft

Marta_Voda [28]

Decrease = (original number - new number) / original number .....x 100
decrease = (49 - 22) / 49.....* 100 =
(27 / 49) * 100 =
2700 / 49 = 55% decrease

4 0

3 years ago

arturo paid $8 in taxes on a purchase of $200. assuming the tac rate is the same, what would the tax be on a purchase of $150

Ludmilka [50]

Answer:

you would take 1/4 away from 8 because 1/4 of $200 is 50 so that makes the taxes 2$

Step-by-step explanation:

4 0

3 years ago

Write as an algebraic expression. "The difference between a number and -13

melisa1 [442]

$n - (-13)$
$= n + 13$

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3 years ago

In a certain game of chance, your chances of winning are 0.3. Assume outcomes are independent and that you will play the game fo

sergeinik [125]

Answer:

0.6517

Step-by-step explanation:

Given that in a certain game of chance, your chances of winning are 0.3.

We know that each game is independent of the other and hence probability of winning any game = 0.3 (constant)

Also there are only two outcomes

Let X be the number of games you win when you play 4 times

Then X is binomial with p = 0.3 and n =4

Required probability

= Probability that you win at most once

= $P(X\leq 1)\\=P(X=0)+P(X=1)$

We have as per binomial theorem

P(X=r) = $nCr p^r (1-p)^{n-r}$

Using the above the required prob

= 0.6517

3 0

3 years ago

The overnight temperature in Tampa never reach below 40°F during november. wich inquality shows that

notsponge [240]

x≥40 is the answer to your problem

7 0

3 years ago