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disa [49]
2 years ago
4

Roman can type 3 pages in 60 minutes. How many more pages can Roman type in 90 minutes than in 60 minutes? Assume the relationsh

ip is proportional and he types at a constant rate.
Mathematics
1 answer:
KATRIN_1 [288]2 years ago
3 0

Answer:

Roman can type 1.5 more pages in 90 minutes than 60 minutes.

Step-by-step explanation

In 60 Roman can type 3 pages. Divide those numbers in half to find out how many pages he can type in 30 minutes. Add 30 minutes to 60 minutes and 3 pages to 4.5 to get 90 minutes.

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What proportion of these candy bars have more than 300 calories per serving? (Round your answer to two decimal places.)
Hatshy [7]

Answer:  0.12

Step-by-step explanation:

There are 65 candy bars. Out of that;

2 candy bars have 300 to 350 calories

1 candy bar has 350 to 400 calories

4 candy bars have 400 to 450 calories

1 candy bar has 450 to 500 calories

The total proportion out of 65 candy bars that have over 300 calories is;

= ( 2 + 1 + 4 + 1) / 65

= 8/65

= 0.12

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7 0
2 years ago
An investment firm offers three types of equity investments,
Fudgin [204]

Answer:

<u>The expected value of the total return rate for the firm's clients is C. 7.4%</u>

Step-by-step explanation:

1. Let's review all the information given for solving the question:

Type of equity investments = A, B and C

Percentage of investment in each type of equity = 30% in A, 50% in B and 20% in C.

Rates of return of each type of equity investment = 10% for A, 6% for B and 7% for C.

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