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Korvikt [17]
2 years ago
7

The height of a rectangle is 2 less than it’s base x if the perimeter of the rectangle is no less than 36 cm, find the base

Mathematics
1 answer:
Inessa [10]2 years ago
7 0
10 I think because 10+10+8+8=36 and 8 is 2 less than 10
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The sum of two numbers is 53. if twice the first number minus three times the second number is 26, find both numbers.
EastWind [94]
Make an equation system based on the problem
eg. a is the first number and b is the seond number
An equation for "<span>The sum of two numbers is 53" is
</span>⇒ a + b = 53
An equation for "<span>twice the first number minus three times the second number is 26"
</span>⇒ 2a - 3b = 26
<span>
Solve the equations by elimination and subtitution method
Eliminate a to find the value of b
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2a - 3b = 26
--------------------------------------
2a + 2b = 106
2a -  3b = 26
------------------- - (substract)
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         b = 80/5
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Subtitute the value of b to one of the equations
a + b = 53
a + 16 = 53
a = 53 - 16
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The numbers are 16 and 37</span>
6 0
3 years ago
A new television is on sale for $680.00, which is 20% off of its original price. What was the original price of the television?
Effectus [21]

Answer:

Original price of the television = $850

Step-by-step explanation:

Television price on sale = $680.00

% of sale = 20%

It means price on sale = 80% = $680.00

Original price of the television = 100% = ?

Price on 1% = 680/80 = $8.5

Original price of the television = 100% = $8.5 x 100

                                                  = $850

4 0
3 years ago
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