9 + 3 × 2² - 1 × 4
= 9 + 3 × 4 - 1 × 4
= 9 + 12 - 1 × 4
= 21 - 1 × 4
= 21 - 4
= 17
Follow the order of PEMDAS, where,
P = Parentheses
E = Exponents
M = Multiplication
D = Division
A = Addition
S = Subtraction
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Hope it helps ⚜
So when the pool is filled by the two hoses together in 30 minutes, the larger hose itself fills 30/40 = 3/4 of the pool. That means in those 30 minutes the smaller hose fills 1/4 of the pool; and that means it would take the smaller hose 30*4 = 120 minutes to fill the pool alone.
I actually solved it and got x= -1
Do 6/30 and you will get .2lbs a day.
In part A, if a's value is 1 then b is 2 and so on so the first letter of your name will have a number, and for part b you tale 3 letters that make up a word and the number after also equals 20.
