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pentagon [3]
3 years ago
9

Please help with this having trouble keep getting it wrong

Mathematics
1 answer:
olga2289 [7]3 years ago
8 0

Answer:

40?

Step-by-step explanation:

multiply by 2  since 30/15=2

2x20=40

srry if wrong but

hope this helps

take care

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frozen [14]
(a) 2.49 * 6 = 14.94 <== what they spent on goodie bags

(b) 150 for 8 hrs = 150/8 = 18.75 per hr

(c) 182.53 - (150 + 14.94) = 182.53 - 164.94 = 17.59...they spent 17.59 more
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4 years ago
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the melting point of mercury is about 1/4 of the melting point of krypton. the melting point of mercury is -39°C. Write and solv
vova2212 [387]

This is not the best question I've ever seen. The wording is the problem, and it's not your fault. The melting point of Krypton is about - 160 oC. It means that numerically the melting point of Krypton is 4 times lower than that of mercury.

Krypton = 4*M

M = - 39

Krypton = 4*-39

Krypton = - 156o C

Now you want to make it something like K(1/4) = - 39 which would be fine. You can't use - 1/4. If you do, your answer will come out to be + 156 which is not what you mean. If this was a multiple choice question, your answer would be the second best one.

5 0
3 years ago
Refer to the number line. Find the coordinate of point Y such that the ratio of MY to YJ is 2:3
balandron [24]

The coordinate of point Y such that the ratio of MY to YJ is 2:3 is 6.4

<h3>How to determine the point?</h3>

The complete question is added as an attachment

The coordinates are given as:

M = 2

J = 18

The ratio is given as:

Ratio = 2 : 3

The location of the point Y is then calculated as:

Y = Ratio * (J - M)

This gives

Y = 2/(2 + 3) * (18 - 2)

Evaluate

Y = 2/5 * 16

This gives

Y = 6.4

Hence, the coordinate of point Y such that the ratio of MY to YJ is 2:3 is 6.4

Read more about line segment ratio at:

brainly.com/question/12959377

#SPJ1

5 0
2 years ago
A man invest $1000 in a 12 month certificate of deposit paying 8% and $2000 and municipal bonds that pay 7% a year what is the t
fomenos

Answer:

$3220

Step-by-step explanation:

A man invests $1000 in a 12-month certificate of deposit paying 8% interest.

So, after 1 year his money will become from the certificate deposit =  $1000( 1+ \frac{8}{100} ) = 1080

Again the man invest $2000 in municipal bonds that pays 7% a year.

So, after 1 year his money will become from the municipal bond =  $2000( 1+ \frac{7}{100} ) = 2140

Therefore, total yearly return from both the above investment will be $[(1080 + 2140) -(1000 + 2000)] = $220 (Answer)

5 0
4 years ago
A normal distribution has a mean of 50 and standard deviation of 5. Which value produces a negative z-score?​
zimovet [89]

Answer:

x\:.

Step-by-step explanation:

The z-score for a normal distribution is calculated using the formula:

Z=\frac{x-\mu}{\sigma}.

From the question, the distribution has a mean of 50.

\implies \mu=50 and the standard deviation is \sigma=5.

For a z-score to be negative, then, \frac{x-\mu}{\sigma}\:.

\frac{x-50}{5}\:.

x-50\:.

x-50\:.

x\:.

\therefore x\:.

Any value less than 50 will produce a negative z-score

8 0
4 years ago
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