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8090 [49]
2 years ago
11

What is the value of x, if 105% of 90 is equal to 200% of x?

Mathematics
2 answers:
quester [9]2 years ago
8 0
X = 47.25 because 105/200 equals 0.525. 0.525 times 90 equals 47.25
lisov135 [29]2 years ago
7 0

From the given equation

105% * 90 = 200% * x

105/100 * 90 = 200/100 * x

105*90 = 200*x

x = 105*90/200

X = 21*9/4

X = 189/4

x = 47.25

Value of x = 47.25 or 47 1/4

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In the equation "y=m+b," what does the "m" stand for​
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The m in y=mx+b stands for the slope of the line

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konstantin123 [22]

Answer: 15.7 minutes

Step-by-step explanation:

Let x be the time in the beginning (in minutes).

Given: The track team is trying to reduce their time for a relay race.

First they reduce their time by t_1=2.1 minutes.

Then they are able to reduce that time by t_2=10

If their final time is 3.96 minutes, then

x-t_1-t_2=3.6\\\Rightarrow\ x=3.6+t_1+t_2\\\Rightarrow\ x=3.6+2.1+10\\\Rightarrow\ x= 15.7

Hence, their beginning time was 15.7 minutes.

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2 years ago
Solve the equation 5x + (−2) = 6x + 4 using the algebra tiles. What tiles need to be added to both sides to remove the smaller x
miss Akunina [59]

Answer:

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Step-by-step explanation:

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5x + (−2) = 6x + 4

a) What tiles need to be added to both sides to remove the smaller x-coefficient?

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So, Adding -5x on both sides of the equation to remove the smaller x-coefficient

b) What tiles need to be added to both sides to remove the constant from the right side of the equation?

the constant on right side is 4

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Answer:

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