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3 years ago

I need help on Part B and C on question 2

Mathematics

1 answer:

kap26 [50]3 years ago

3 0

Answer:

The answer to your question is

Part A. Archimedes grades 6 1/4 tests per day

Part B. 8 19/32 days

Part C. 6 26/29 days

Step-by-step explanation:

Part A

Total time = 6 2/5 days

Number of tests = 40 tests

Process

1.- Convert the mixed fraction to improper fraction

6 2/5 = (30 + 2) / 5 = 32/5

2.- Divide 40 by 32/5

40/1 / 32/5 = (40 x 5) / (32 x 1)

= 200 / 32

Simplify

100 / 16 = 50/8 = 25/4

3.- Convert 25/4 to mixed fractions

4 25

25/4 = 6 1/4

Archimedes grade 6 1/4 tests per day

Part B

15 more tests

Total time = 32/5

Total tests = 40 + 15 = 55

Process

1.- Divide 55 by 32/5

55 / 1 / 32 /5 = (55 x 5) / (32 x 1)

= 275 / 32

2.- Convert 275/32 to a mixed fraction

32 275

256

Result 8 19/32 days

Part C

1.- Divide 55 by 7.25

50 / 7.25 = 5000 / 725

725 5000

- 4350

650

Result 6 650/750 = 6 26/29

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ElenaW [278]

Answer:

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Step-by-step explanation:

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2 years ago

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Complete the table for the given rule. Rule: y=3x<br> x y <br> ? 15<br> 10 ?<br> ? 45

miskamm [114]

Answer:

x = 5, 15 y = 30

Step-by-step explanation:

y=3x is the rule, thus you can use it to find all values.

15 = 3x Divide 15 by 3 in order to isolate the variable

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3 years ago

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mylen [45]

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The quadratic equation $ax^2 + bx + c = 0$ has roots when a, b, and c are real numbers, a 0, and the discriminant is negative, but these roots are not equal and are not real. We refer to the roots in this instance as fictitious.

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