sandy3711
22.04.2021 •
Mathematics
GUYS I NEED HELP PLZ AND FAST
1) Make t the subject of the equation below:
x² = 3y - 2st²
2)
a) a bottle of washing up liquid contains 560 ml of liquid. The bottle is marked 30% extra free. How much liquid is there? (show ur working)
b) Jenna buys a car for $50,000. In the first year of owning it, the car depreciates in value by 20%. For every year after that it depreciates 10% of its value per year. How much is the car worth after 3 years ?
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Ответ:
$7 + $0.20p = $5 + $0.30p
Step-by-step explanation:
UPS charges $7 for the first pound and $0.20 for each additional pound.
FedEx charges $5 for the first pound and $0.30 for each additional pound.
Let's take the number of additional pounds that will make UPS and FedEx cost the same to be p.
$7 + $0.20p = $5 + $0.30p
$7 - $5 = $0.30p - $0.20p
$2 = $0.10p
p =
= 20 additional pounds