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Lemur [1.5K]
3 years ago
8

Express 3/5 as a percent

Mathematics
1 answer:
Mama L [17]3 years ago
8 0

Answer: 60%

Step-by-step explanation:

3/5 times 20 = 60/100

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Which of the following equations represents the line with a slope of -7/4 and a y-intercept of -11?
san4es73 [151]

Answer:

y = -7/4x - 11

Step-by-step explanation:

formula is y = mx + b

m is the slope

b is the y intercept

y = -7/4x -11

which is the first one

3 0
2 years ago
2y to the power of 2x - 3xz = ?
MrRissso [65]

Answer:

x•(2xy-3z)

Step-by-step explanation:

2x²y -3xz== x(2xy-3z)

6 0
3 years ago
According to the World Health Organization (WHO) Child Growth Standards, the head circumference for boys at birth is normally di
Elena L [17]

Answer:

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

This z score tell to us how many deviations we are below or above the mean for a given normal distribution.

For the case of Eddie we got:

z= \frac{33.2-34.5}{1.3}= -1

And for the case of Sue we got:

z = \frac{32.7-33.9}{1.2}= -1

So then for both cases we see that Eddie and Sue are 1 deviation below the true mean for each gender so then the best conclusion for this case would be:

C.They are the same size relative to other children of the same sex.

Step-by-step explanation:

We can define the random variable X as the head circumference for boys at birth and we know that the distribution for X is given by:

X\sim N(\mu = 34.5, \sigma=1.3)

Similarly we can define the random variable Y as the head circumference for boys at birth and we know that the distribution for Y is given by:

Y\sim N(\mu = 33.9, \sigma=1.2)

And we know that Eddie was born with 33.2 cm and Sue with 32.7 cm for the head circumference . Since we are interested to determine which child's head circumference is smaller relative to other children of the same sex, we can use the z score formula given by this formula:

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

This z score tell to us how many deviations we are below or above the mean for a given normal distribution.

For the case of Eddie we got:

z= \frac{33.2-34.5}{1.3}= -1

And for the case of Sue we got:

z = \frac{32.7-33.9}{1.2}= -1

So then for both cases we see that Eddie and Sue are 1 deviation below the true mean for each gender so then the best conclusion for this case would be:

C.They are the same size relative to other children of the same sex.

5 0
3 years ago
Your school is sponsoring a pancake dinner to raise money for a field trip. You estimate that 150 adults and 280 children will a
soldi70 [24.7K]

Answer:

150x + 280y = 1310

Step-by-step explanation:

5 0
3 years ago
378+567-142÷5=?<br>456(325-541)÷32=?​
Schach [20]

Answer:

378+567-142÷5= 916.6

456(325-541)÷32= -3078

Step-by-step explanation:

5 0
3 years ago
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