What is the value of x in the equation 3x-4y=65 when y=4
2 answers:
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Group A
Money spent by Person 1 = £500
Money spent by Person 2 = £600
Money spent by Person 3 = £900
Money spent by Person 4 = £450
Sum of money spent by group A = £2,450
Average money spent by group A =
⇒ Average money spent by group A = £612.5
Group B
Money spent by Person 1 = £700
Money spent by Person 2 = £500
Money spent by Person 3 = £680
Money spent by Person 4 = £500
Sum of money spent by group B = £2,380
Average money spent by group B =
⇒ Average money spent by group B = £595
Hence, Group B had lower average spend.
Answer:
<h2>2.2</h2>Step-by-step explanation:
Use the cosine law (look at the picture).
We have:
→ look at the second picture
Let last year product be x boxes.
110% of x means
.
Thus, we solve the equation:
.
Multiplying both sides by
, we have:
.
Answer: Last <span>year's annual production was 650,000 boxes.</span>
110% of x means
Thus, we solve the equation:
Multiplying both sides by
Answer: Last <span>year's annual production was 650,000 boxes.</span>