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jek_recluse [69]
2 years ago
5

Cindy has $20 to spend at the store. She buys a pack of colored pencils that cost $4 and jelly beans that cost $2 per pound. If

she spends more than $8 at the store, graph a compound inequality that shows the possible number of pounds of jelly beans she could have purchased.​
Mathematics
2 answers:
lawyer [7]2 years ago
6 0

Answer:

Step-by-step explanation:

7

Lelechka [254]2 years ago
3 0

Answer:

4 pounds but if I'm wrong sorry

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(please help quickly) Find the least common multiple of the following numbers. ​
IrinaK [193]

Answer:

1a. 156

1b. 147

2a. 45

2b. 84

3a. 160

3b. 108

4a. 210

4b.132

7 0
2 years ago
If x is a positive integer then 2(x)³ =<br> 8x<br> 8x³<br> 6x³<br> 2x³<br> 6x
marysya [2.9K]
It is equal to 2(x)^3 because pemdas, exponnets come before multiplication so it would be x^3 then multiply whatever that is by 2

2x^3 is answer (4th choice)
5 0
3 years ago
In the right triangle, angle B equals 60° and AB equals 18<br><br>How long is AC? <br>I'm stuck!
svlad2 [7]

Answer:

AC = 15.588

Step-by-step explanation:

(all rounded to nearest thousandth)

sin(60) = x/18

first solve: sin(60) = 0.866

0.866 = x/18

multiply 18 on both sides

x = 15.588

3 0
3 years ago
Jessica can do 60 jumping jacks in 2 minutes.dale can do 150 jumping jacks in 5 minutes.Are these rates equivalent? Explain your
artcher [175]
The rates are equivalent because both of them do 30 jumping jacks a minute.
6 0
3 years ago
The amount of time a certain brand of light bulb lasts is normally distributed with a
gladu [14]

The interval of hours represents the lifespan of the middle 68% of light bulbs, using the empirical rule is, 1210 hours to 1390 hours.

<h3>What is empirical rule?</h3>

According to the empirical rule, also known as 68-95-99.7 rule, the percentage of values that lie within an interval with 68%, 95% and 99.7% of the values lies within one, two or three standard deviations of the mean of the distribution.

P(\mu - \sigma < X < \mu + \sigma)  = 68\%\\P(\mu - 2\sigma < X < \mu + 2\sigma)  = 95\%\\P(\mu - 3\sigma < X < \mu + 3\sigma)  = 99.7\%

Here, we had  where mean of distribution of X is \mu  and standard deviation from mean of distribution of X is \sigma

The amount of time a certain brand of light bulb lasts is normally distributed with a mean of 1400 hours and a standard deviation of 50 hours. Thus,

\mu=1300\\\sigma=90

Using the empirical rule, the interval of hours represents the lifespan of the middle 68% of light bulbs is,

P(\mu - \sigma < X < \mu + \sigma)  = 68\%\\P(1300-  90 < X < 1300+ 90)  = 68\%\\P(1210 < X < 1390)  = 68\%

Thus, the interval of hours represents the lifespan of the middle 68% of light bulbs, using the empirical rule is, 1210 hours to 1390 hours.

Learn more about empirical rule here:

brainly.com/question/13676793

#SPJ1

3 0
2 years ago
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