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Rudik [331]
3 years ago
13

How can you evaluate an algebraic expression

Mathematics
1 answer:
fredd [130]3 years ago
6 0

Answer:

Step-by-step explanation:

In algebra we work with variables and numerals. To evaluate an algebraic expression simply means that you are going to determine the value of an expression by substituting and evaluating using the operation order.

in summary in order to evaluate an algebraic expression

  • you must identify the variable and its value
  • you will substitute the given value  for the variable
  • complete the necessary calculations

Take for example;

evaluate 2a + 4b - 2c

given that a = 2 , b = 1 , c = 5

since you already know the value of the variables you substitute them into the question

we have

2(2) + 4(1) +2 ( 5)

4 + 4 + 10

18.............. answer.

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A car travels around a circular track. The inside wheels follow along the line of the inner circle, and the outer wheels follow
Lynna [10]
So, basically what they are asking for is the circumference (which is like the perimeter) of the inner and outer circles. 

Circumference is: C = 2<span>πr

The radius of the two circles are given so all you need to do is plug it in.

Circumference of the bigger circle (outer tire) is 157ft. Circumference of the smaller circle (inner tire) is 132ft.

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3 years ago
find the unit rate and use it to write and equation relating the two quantities. 150 dollars for 50 t-shirts
Yuri [45]
150=50r

r=3 so

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8 0
3 years ago
Read 2 more answers
Which of the following equations are equivalent to -2m - 5m - 8 = 3 + (-7) + m?
grandymaker [24]
-2m - 5m = -7m
-7m - 8 = 3 -7 + m
3 - 7 = -4
-7m - 8 = m - 4
-7m - 8 + 8 = m - 4 + 8
-7m = m + 4
-7m - m = m + 4 - m
-8m = 4
-8m/-8 = 4/ -8
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4 0
4 years ago
( − 9 , 7 ),(−6,−3)
lina2011 [118]

Answer: If you wanting to find the slope, the answer would be m = -10/3

Step-by-step explanation: Use the slope formula to find the slope m.

Hope this helps you out! ☺

3 0
4 years ago
Mia's cat weighs 13 pounds, 7 ounces. About what is that weight in kilograms? (Hint: 1 kilogram = 1,000 grams.
sattari [20]
Given:
13 pounds and 7 ounces

convert to kilograms:

1 kilogram = 2.20462 pounds
1 kilogram = 35.274 ounces

13 pounds * 1 kg/2.20462 pounds = 13 kg/2.20462 = 5.8967 kg
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5.8967 kg + 0.1984 = 6.0951 kg. rounded up to 6.10 kgs.

5 0
3 years ago
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