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3 years ago

80/91 + 5/9 in fraction pls

Mathematics

2 answers:

lesya [120]3 years ago

8 0

Answer:

1175/819

Step-by-step explanation:

80/91 = 720/819

5/9 = 455/819

720 + 455 = 1175

We will not add the denominators

I hope this helps!

svp [43]3 years ago

5 0

Answer:

Your answer is: (a little big) ----> 1175/819

Mixed number form: 1 356/819

Combine the fractions by finding a common denominator.

Step-by-step explanation:

Hope this helped : )

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Step-by-step explanation:

Area= 150/360 (pi12^2)

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1. Find the volume of both right cylinders.

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1.) 1205.76
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One positive integer is 5 less than twice another. The sum of their squares is 725. Find the integers.

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Let the numbers are a and b; a - 5 = 2b, and -------------- (1)a2 + b2 = 250 ----------------(2) rewriting and squaring of (1) is given as; a2 = 4b2 + 20b + 25 -------- (3) substituting (3) into (2) (4b2 + 20b + 25) + b2 = 250, thus 5b2 + 20b - 225 = 0 by dividing both sides by 5 b2 + 4b - 45 = 0 solving the quadratic for b, we will get b = -9 or 5, substituting these for b in (1), we will get a asa = -13 or 15 However, if a and b must be positive integer, then a = 15 and b = 5 is the answer

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3 years ago

What is the length of the hypotenuse? If necessary, round to the nearest tenth.

Diano4ka-milaya [45]

Answer:

The value of c is 2√2 or about 2.8.

Step-by-step explanation:

We can find the hypotenuse (c) with the help of Pythagoras Theorem.

=> c² = 2² + 2²
=> c² = 4 + 4
=> c² = 8
=> c = √8
=> c = √2 x 2 x 2
=> c = 2√2

If you want further simplification, seek for explanation below.

=> c = 2√2
=> c = 2 x √2
=> c = 2 x 1.414
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Hence, the value of c is 2√2 or about 2.8.

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3 years ago

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Maria invested $4,000 at 3.5% simple interest. She left the principal invested for 57 months. Robert invested $3,500 at 8.5% sim

Alex_Xolod [135]

Answer:

Maria have $123,75 more total money than Robert at the end of their investments.

Step-by-step explanation:

To calculate the simple interest we should multiply the Initial invest, with the interest without percentage and the time in years.

As the time is in months we have to divide it by 12 so we have the mesure of time in years, then the interest for each of the investments will be:

Maria

Invest = $4,000 Interest = 3.5/100=0.035 Time = 57/12 = 4.75

Simple Interest = 4,000 x 0.035 x 4.75 = $665

Total money at the end of the invest = $4,000 + $665 = $4,665

Robert

Invest = $3,500 Interest = 8.5/100=0.085 Time = 42/12 = 3.5

Simple Interest = 3,500 x 0.085 x 3.5 = $1,041.25

Total money at the end of the invest = $3,500 + $1,041.25 = $4,541.25

Now we have to subtract the total money of Robert from the total money of Maria to know how much money did she got over Robert after their invests

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At the end of the invest, Maria got $123,75 more than Robert

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