Answer: x= 1
Step-by-step explanation:
Subtract 2x from both sides
−7=5x−10−2x
Simplify
7=3x-10
Add 10 to both sides
7+10=3x
Simplify
3=3x
Divide
x=1
If you have any questions let me know!
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Hope this helps!!! Good luck!!! ;)
Answer:
40 lbs was used
Step-by-step explanation:
If there is 20% left, that means 80% was used
50 *80%
Change to decimal form
50 *.80
40
40 lbs was used
Answer:
80 cm as a fraction of 4 m is 
Step-by-step explanation:
To write the fraction of two different quantities you must put them in the same units
<u><em>Example:</em></u> To write 5 grams as a fraction of 1 kilogram
- Change the 1 kilogram to grams by multiplying it by 1000
- The fraction will be

- Reduce it to its simplest form by divide up and down by 5 to be

<em>Let us use the same way to solve the question</em>
∵ 1 meter = 100 centimeters
∴ 4 meters = 4 × 100 = 400 centimeters
→ Now put 80 centimeters as a numerator and 400 centimeters as
a denominator
∵ The fraction is 
→ Divide up and down by 80 to simplify it
∴ The fraction =
∵ 80 ÷ 80 = 1
∵ 400 ÷ 80 = 5
∴ The fraction in its simplest form = 
∴ 80 cm as a fraction of 4 m is 
Answer:
b) 3,4,75,100
Step-by-step explanation:
Since in the question it is mentioned that
75,4,3,100
So here the arrangement that creates a proportion is
3,4,75,100
Therefore the option b is correct
Answer:
3) Because the run go by 4 and the rise go up by 2
Step-by-step explanation: