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Viefleur [7K]
3 years ago
9

2. Use the image below to answer problems A-C. Show all work.

Mathematics
1 answer:
Yakvenalex [24]3 years ago
6 0
<span>A. Calculate the value of x.</span>
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Mum bought a litre of orange juice. She filled 5 glasses and had 1/5 of a litre left. How much was in each glass?
avanturin [10]
1/5 of a litre is 0.2 litres
1 litre minus 0.2 litres is 0.8 litres so
0.8 divided by 5 (glasses) is 0.16 litres in each glass
7 0
3 years ago
A set of 200 test scores are normally distributed with a mean of 70 and a standard deviation of 5. Approximately how many studen
spin [16.1K]

Answer:  About 191 students scored between a 60 and an 80.

Step-by-step explanation:

Given : A set of 200 test scores are normally distributed with a mean of 70 and a standard deviation of 5.

i.e. \mu=70 and \sigma=5

let x be the random variable that denotes the test scores.

Then, the probability that the students scored between a 60 and an 80 :

P(60

The number of students scored between a 60 and an 80 = 0.9544 x 200

= 190.88 ≈ 191

Hence , about 191 students scored between a 60 and an 80.

8 0
3 years ago
Pls help ASAP
yawa3891 [41]

Answer:

B. 0.78

Step-by-step explanation:

0.78 would be closest to the nearest hundredth, depending on where the decimal is depends on how many numbers that come after the decimal.

Therefore 0.078 would be to the nearest thousandths and 7.8 would be to the nearest tenths.

6 0
3 years ago
Read 2 more answers
How do I solve this. <br><br> Log 5x = log (2x+9)
liubo4ka [24]
D:5x\ \textgreater \ 0 \wedge 2x+9\ \textgreater \ 0\\&#10;D:x\ \textgreater \ 0 \wedge 2x\ \textgreater \ -9\\&#10;D:x\ \textgreater \ 0 \wedge x\ \textgreater \ -\dfrac{9}{2}\\&#10;D:x\ \textgreater \ 0\\\\&#10;\log5x=\log(2x+9)\\&#10;5x=2x+9\\&#10;3x=9\\&#10;x=3
3 0
3 years ago
Evaluate the following: −3 − (−2).
Maurinko [17]

Answer:

Step-by-step explanation:

hello :

−3 − (−2)= -3+2 = -1

6 0
3 years ago
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