Answer:
6 weeks
Step-by-step explanation:
Set up a proportion where x is the amount of time with 12 pupils:
=
Cross multiply and solve for x:
4x = 24
x = 6
So, it will take 12 pupils 6 weeks to complete the job.
The first term of a sequence is 3. The common difference of the sequence is 10 less than twice the first term. Write the equatio
1 answer:
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Answer:
Pic 1:
Pic 2:
Step-by-step explanation:
<u>Picture 1:</u>
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First, add the 2x and x together for 3x
Then add 3 to both sides of the equation
Finally, divide each side by 3.
<u>Picture 2:</u>
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First, add 7x and x together for 8x
Then, minus 20 from both sides of the equation
Finally, divide each side by 8.