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GalinKa [24]
2 years ago
14

Penny reads 13 pages in 1/2 hour. What is the unit rate for pages per hour? For hours per page? How many hours per page

Mathematics
2 answers:
horsena [70]2 years ago
6 0

Answer:

13 pages : 1/2 hour Multiply both sides by 2

26 pages : 1 hour ------>> 26 pages/hr

Flip over 26 pages/hr ----->>> hr / 26 pages = 1 hr / 26 pages

Split up the fraction: (1/26) hr / page

san4es73 [151]2 years ago
3 0

Answer:

26

Step-by-step explanation:

13 in 1/2 hour

13:1/2

26:1

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You deposit $200 in an account earning 3.5% simple interest how long will it take for the balance of the account to be $221
Rus_ich [418]

It takes 3 years for the balance of account to be $ 221

<em><u>Solution:</u></em>

From given information,

Principal = $ 200

Rate of interest = 3.5 %

Amount after "n" years = $ 221

To find: number of years

In simple Interest,

Simple interest = amount earned - principal

Simple interest = 221 - 200 = 21

Thus simple interest earned is $ 21

<em><u>The formula for simple interest is given as:</u></em>

simple\ interest = \frac{ p \times n \times r}{100}

Where,

p is the principal

n is the number of years

r is the rate of interest per annum

Substituting the given values in formula,

21 = \frac{200 \times n \times 3.5}{100}\\\\21 = 2n \times 3.5\\\\n = \frac{21}{7}\\\\n = 3

Thus it takes 3 years for the balance of account to be $ 221

7 0
3 years ago
Y = 6x - 4<br> y = -x + 3
likoan [24]

Answer:

  (1, 2)

Step-by-step explanation:

Subtract the second equation from the first:

  (y) -(y) = (6x -4) -(-x +3)

  0 = 7x -7 . . . . .  simplify

  0 = x - 1 . . . . . . divide by 7

  1 = x . . . . . . . . . add 1

  y = -1 +3 = 2 . . . substitute into the second equation

The solution is (x, y) = (1, 2).

4 0
3 years ago
What is 4,938,503 rounded to the nearest 1,000 and 10,000
BabaBlast [244]
To the nearest 1,000: 4,939,000
to the nearest 10,000: 4,940,000
3 0
3 years ago
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A squirrel runs across a road in 3 seconds. The road was more than 34 feet wide.
Anika [276]

Answer:

A

Step-by-step explanation:

3 x r <u>></u> 34

5 0
2 years ago
Write another way to describe 43
Leno4ka [110]
43 
= 40+ 3
= 4 tens+ 3 ones.

Another way to describe 43 is 4 tens and 3 ones~
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3 years ago
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