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Butoxors [25]
3 years ago
15

Can someone help me with this math problem? 4x+10=22

Mathematics
2 answers:
klasskru [66]3 years ago
5 0

Answer:

x=3

Step-by-step explanation:

4x+10=22

Subtract 10 from both sides.

4x=22−10

Subtract 10 from 22 to get 12.

4x=12

Divide both sides by 4.

x=  12/4

Divide 12 by 4 to get 3.

x=3

umka2103 [35]3 years ago
4 0
-10 from both sides so
4x=12
divide both sides by 4
x=3
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Is negative 5/16 greater less than or equal to negative 8/25
Bezzdna [24]

Answer:

-5/16 > -8/25

Step-by-step explanation:

125/400 > -128/400

so...

-5/16 > -8/25

3 0
4 years ago
A candle maker has rectangular block of paraffin that is 4 centimeter high by 8 centimeter long by 6 centimeter wide. He melts i
Veronika [31]

Answer:

The candle will not use all the paraffin from the original block.

Step-by-step explanation:

The cone-shaped candle is 5 cm wide at the base i.e. the diameter of the base is 5 cm i.e. radius is 2.5 cm.

If the height of the cone is 25 cm, then total volume of the cone shaped candle is  

\frac{1}{3}\pi  r^{2} h

= \frac{22 \times 2.5^{2} \times 25 }{3 \times 7}

= 163.69 cubic cm.

Again, the volumes of the rectangular block of paraffin is (4 × 8 × 6) = 192 cubic cm.

Since, 192 > 163.69

Therefore, the candle will not use all the paraffin from the original block.

5 0
3 years ago
at a summer camp there are 50 girls out of 80. what is this ratio wrottwn as a fraction in simplest form
omeli [17]
50/80, then divide it by ten so the answer is 5/8. Once the number can divide both numbers your good.
4 0
3 years ago
Read 2 more answers
What is the percent decrease from 72 to 45
Marizza181 [45]

Answer:

37.5%

Step-by-step explanation:

72-45=27

27/72=x/100

2700/72=x

x=37.5

37.5%

5 0
3 years ago
he life of light bulbs is distributed normally. The variance of the lifetime is 625 and the mean lifetime of a bulb is 540 hours
almond37 [142]

Using the normal distribution, it is found that there is a 0.877 = 87.7% probability of a bulb lasting for at most 569 hours.

<h3>Normal Probability Distribution</h3>

The z-score of a measure X of a normally distributed variable with mean \mu and standard deviation \sigma is given by:

Z = \frac{X - \mu}{\sigma}

  • The z-score measures how many standard deviations the measure is above or below the mean.
  • Looking at the z-score table, the p-value associated with this z-score is found, which is the percentile of X.

The mean and the standard deviation are given, respectively, by:

\mu = 540, \sigma = \sqrt{625} = 25

The probability of a bulb lasting for at most 569 hours is the <u>p-value of Z when X = 569</u>, hence:

Z = \frac{X - \mu}{\sigma}

Z = \frac{569 - 540}{25}

Z = 1.16

Z = 1.16 has a p-value of 0.877.

0.877 = 87.7% probability of a bulb lasting for at most 569 hours.

More can be learned about the normal distribution at brainly.com/question/24663213

#SPJ1

8 0
2 years ago
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