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Cerrena [4.2K]
4 years ago
10

Can someone help me with percents ?

Mathematics
2 answers:
denpristay [2]4 years ago
8 0
The person HAD homework 75/100 or 75%

the remaining days he did NOT have homework , which is 25/100 or 25%
asambeis [7]4 years ago
5 0
Basically the question states that the student had homework 75% of the time. Or 75/100 of the time. They are the same. So to figure out when the student did not have homework you would subtract 100-75. So 25% or 25/100.
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235*45 please help me
harkovskaia [24]
235 x 40 = 9400
235 x 5 = 1175

9400 + 1175 = 10575

235 x 45 = 10575
3 0
3 years ago
Marla uses two copiers to make copies of a one-page newsletter. *Copier R makes 60 copies per minute. *Copier T makes 40 copies
Sindrei [870]

Answer:

12 minutes.

Step-by-step explanation:

Marla uses two copiers to make copies of a one-page newsletter. *Copier R makes 60 copies per minute. *Copier T makes 40 copies per minute.

Since both copier start at the same time, let the number of minutes used by both copiers be represented by x

60 × x + 40 × x = 1200 copies

60x + 40x = 1200

100x = 1200

x = 1200/100

x = 12 minutes

Therefore, it will take 12 minutes l to make 1200 copies.

6 0
4 years ago
Suppose a simple random sample of size nequals49 is obtained from a population with mu equals 78 and sigma equals 28.
VLD [36.1K]

Answer:

0.0735,0.0179,0.7026

Step-by-step explanation:

Given that a simple random sample of size nequals 49 is obtained from a population with mu equals 78 and sigma equals 28.

Sample size = 49

Population mean = 78

Population std deviation = 28

Std error of sample mean = \frac{\sigma}{\sqrt{n} } \\=4

a) \bar x: N(78, 4)

b) P(\bar x >83.8)\\=0.0735

(by converting to Z and finding value from Z table)

c) P (x overbar less than or equals 69.6 )​

=P(\bar x \leq 69.6)\\=0.0179

d) P (75.8 less than x overbar less than 88 )

=P(75.8

4 0
4 years ago
Solve the following equation:
stealth61 [152]

Answer: Y=1/8

Slope m=0, b =1/8

Step-by-step explanation:

8 0
2 years ago
Help me with #3 please please and explain
AnnyKZ [126]

all you have to do is 524 times 2 and then add m3

4 0
3 years ago
Read 2 more answers
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