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kykrilka [37]
4 years ago
13

Catherine studied 1.25 hours for her science test. This was 0.5 hours less than she studied for her algebra test. Write and solv

e a subtraction equation to find how long she studied for her algebra test.
Mathematics
1 answer:
tia_tia [17]4 years ago
7 0
1.25 - 0.5 = 0.75


1.25 hours = 1 hour 15 minutes
0.5 hours = 30 minutes

1 hour 15 minutes - 30 minutes = 45 minutes
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What??

Step-by-step explanation:

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4 years ago
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Nostrana [21]

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-2

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4 0
2 years ago
Researchers in New Zealand interviewed 907 drivers at age 21. They had data on traffic accidents and they asked their subjects a
user100 [1]

Answer:

a)

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Step-by-step explanation:

A) A  useful graph is must compare rates rather than counts of accidents in the four marijuana use classes

Using the rates on a graph is better for reference like saying; that 50 crashes were caused by those who smoke 51+ times and 59 crashes is caused by those who never smoke this statistics makes it seem like smoking has no effect on the amount of accidents

Therefore to compare this data effectively using the rates per driver is better off like for people who do not smoke their rate will be = 59 / 452 = 13.1% while for smokers of 61+ times = 50 / 156 = 32.1% and this rate will show clearly tat more accidents where caused by people who smoked 51+ times hence it should be used for graphical representation

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attached below is the required graph

7 0
3 years ago
How many points need to be removed from this graph
Ganezh [65]

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3

Step-by-step explanation:

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3 years ago
Is the sequence 5,9,15 an arithmethic sequence explain ?
german

If a, b, c is an arithmetic sequence then a + c = 2b

a = 5, b = 9, c = 15

subtitute

a + c = 5 + 15 = 20

2b = 2 · 9 = 18

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Answer: The sequence 5, 9, 15 is not an arithmetic sequence.

8 0
3 years ago
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