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Leviafan [203]
3 years ago
7

Roger had 20 minutes to do a three-problem quiz. He spent 11 and 3/4 minutes on question A and 6 1/2

Mathematics
1 answer:
lukranit [14]3 years ago
3 0

Answer:

20-11 3/4 = 8 1/4

8 1/4 - 6 2/4 = 1 3/4 left

Step-by-step explanation:

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Math took my sis phone to see if this works pls help!
elena-14-01-66 [18.8K]

Answer:

8+3*25, 83,2^3+3*5^2, are all equivalent

Step-by-step explanation:

7 0
2 years ago
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A jet travels 470 miles in 2 hours. At this rate, how far could the jet fly in 12 hours?
anzhelika [568]
470 miles in 2 hrs......470/2 = 235 per hr

in 12 hrs...
235 * 12 = 2820 miles <==
7 0
3 years ago
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What is the main difference between investing and saving?
SashulF [63]

Answer:

B.) Investing has the risk of losing principal, whereas saving does not.

Step-by-step explanation:

Saving can be accomplished a number of ways, including putting the money in a cookie jar (where it will not earn interest). Most savings institutions (banks, credit unions, and the like) are governed by rules that help to ensure the availability and safety of the balance. Often, such institutions are insured so that depositors are protected against loss of principal.

Many investment opportunities are governed by no such rules. The invested amount may be unavailable for perhaps a lengthy period of time, and any return on the investment may be dependent upon factors not under the control of the party accepting the money. There is the opportunity for complete loss of the invested amount, and the possibility of incurring additional liability in some cases.

Investment in certificates that are traded on a regulated exchange will be subject to the exchange rules, generally including the requirement that the investor be fully informed of the risks. That doesn't mean there is no risk—it just means the investor is supposed to be made aware of it.

5 0
3 years ago
What should be added to twice a rational Number -7/3to get 3/7<br>​
saul85 [17]

Answer:

107/21

Step-by-step explanation:

re - phrase the question algebraically:

-14/3 + y = 3/7

LCM of 3 and 7  = 21

-98/21 + y = 9/21

what should be added to -98 to make 9?

answer: 107

therefore answer: 107/21

Hope this helps.

Good Luck

3 0
3 years ago
Need urgent help in mathematics!! Will mark brainliest!!!!
Nataly [62]

₇P₅ is a permutation. you can find this setting in the statistics menu of your scientific calculator (i think).

If you don't have a scientific calculator, you can use the following formula:

nPr = \frac{n!}{(n - r)!}

₇P₅  = \frac{7!}{(7 - 5)!}

     = \frac{7}{2!}

     = \frac{7 * 6 * 5 * 4 * 3 * 2!}{2!}

     = 7 * 6 * 5 * 4 * 3

    = 2520

Answer: C

3 0
3 years ago
Read 2 more answers
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