Answer: hi
Step-by-step explanation:
Original length: x
original width; x-3
original area: x(x-3)
when the dimensions doubles, that is, increase by a factor of 2, the area increase by 2²
4[x(x-3)]
4x(x-3)=4x²-12x
you can also do it this way:
original length: x doubled: 2x
original width; x-3 doubled: 2(x-3)
new area: 2x[2(x-3)]= 4x²-12x
Answer: The correct option would be,
B. total += number
Step-by-step explanation:
Since, the variable used to keep the running total is called sum of the numbers or accumulator,
Thus, accumulator = total + number,
i.e. we obtain accumulator by assigning total to total plus number.
Or, accumulator is,
total += number,
Hence, OPTION 'B' is correct.
Answer:
5
Step-by-step explanation:
Answer:
Sale price is $2.58.
Paid with tax is $2.73
Step-by-step explanation:
If the make-up is originally $4.30 and you receive a 40% discount. This means you'll pay 60% of the price since 100-40=60.
To find this price, 60% as 0.6 is multplied with the price. 0.6*4.30 = $2.58
This is the sale price.
When you pay you will pay 6% tax or 0.06 of the price. Find this by multiplying $2.58 by 1.06.
2.58(1.06) = $2.73
