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sweet-ann [11.9K]
2 years ago
12

Can someone help me please, thanks

Mathematics
1 answer:
9966 [12]2 years ago
8 0

Answer:

B. x ≥ 2

Explanation:

<em>hey there,</em>

<em />

< 54-10x ≤ 20+7x

This is kind of simplified as if it was an equation with "=". First, put all the "x"s to one side.

54-10x-7x ≤ 20

Put all the regular numbers to the other side.

-10x-7x ≤ 20-54

Continue simplifying:

-17x ≤ -34

When finishing up this to try to find "x", you are going to change the sign to the opposite (since here it is greater than or equal to, you're going to change it to less than or equal to). The sign is going to change because the numbers being dragged over are negative. This is just a rule you have to follow. So:

x ≥ 2 is your final answer. >

<u>Hope this helped! Feel free to ask anything else.</u>

(Also for future reference, you can add your question in the question box instead of into the comments.)

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2. 10x - 11 - 4x = 43
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3 years ago
Ace autos sell cars and pay sue each month as follows
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Sue's total pay of year will have three parts

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7 0
3 years ago
A chemist needs 130 milliliters of a 47% solution but has only 35% and 87% solutions available. Find how many milliliters of eac
choli [55]

Answer: Amount of 35% solution required = 100 milliliters

Amount of 87% solution required  = 30 milliliters

Step-by-step explanation:

Given: Total solution required =  130 milliliters

Let x = Amount of 35% solution (in milliliters).

Then, Amount of 87% solution required = 130 - x

As per given,

Concentration = 0.35x +0.87(130-x)=0.47(130)

0.35x +113.1-0.87x=61.1\\\\\Rightarrow\ -0.87x+0.35x=61.1-113.1\\\\\Rightarrow\ -0.52 x= -52\\\\\Rightarrow\ x=\dfrac{52}{0.52}=100

Hence, Amount of 35% solution required = 100 milliliters

Amount of 87% solution required  = 130-100 milliliters =30 milliliters

3 0
2 years ago
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