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xenn [34]
1 year ago
15

1. Antonio started the question 2x + 1 = 11 by writing 2x = 10. Which

Mathematics
1 answer:
lana [24]1 year ago
3 0

The property that Antonio has used is what is called the Subtraction property of equality.

<h3>What is the Subtraction property of equality?</h3>

This is the property that tells us in mathematics that is a number is subtracted from an inequality, they would still remain the same.

2x + 1 = 11 is the same thing as also writing  2x = 10. The difference is that the like terms were on the same side.

Read more on Subtraction property of equality here:

brainly.com/question/1005442

#SPJ1

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alina1380 [7]
Growth rate = 200% each year
SO population becomes twice in each year

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5 0
3 years ago
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What two numbers have a sum of 215 and a difference of 137
BabaBlast [244]

Answer:

see below

Step-by-step explanation:

let x = big number

let you = small number

x + y = 215-------> (1)

x - y = 137 ------>(2)

(1)

x = 215 - y ----->(1)

substitute 1 into 2

215 - y -y = 137

-2 y = 78

y = 39

substitute y = 39 into (1)

x = 215 - (39)

x = 176

thus the numbers are 176 & 39

hope this helps

please mark it brainliest

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3 0
3 years ago
If f(x) = 5x, what is f–1(x)?
Verdich [7]
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Step 2:
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Step 3:
Replace x by f'(y)
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f'(y) = y/5

Step 4:
Replace all occurrences of y by x.
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Therefore, the inverse of f(x) = 5x is f'(x) = x/5
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