Math homework help (Algebra)?

Question

The questions are:

QUESTION 1: 2/3y+4=2x2

QUESTION 2: Convert the measure- 147 Kilometers (1 mile=1.609 kilometers)

QUESTION 3: A waiter typically receives about 15% of a total food bill as a tip. To earn a total of $50 in tips, about how much food would the waiter have to sell?

Answer 1

Answer 1-
2/3y+4=2*2
2/3y+4=4 to cancel out
-4 -4
2/3y=0multiply by 2/3 to cancel out the 2/3
y=3/2


Answer 2- approximately 91 miles (91.36109385......)



Answer 3- about $333 of items (OMG A LOT OF FOOD TO SELL)



Ok well hope that helps a bit ^^

Answer 2

First question, is the end Two TIMES Two? if so, y -should- equal to something along the lines of 2/3y = 0 (subtract four, from four, on the other side of the equals sign)

Number 2, should be 147 times 1.609 (if you're converting them to Miles)

Number 3, I'm not so sure about. Im only a Sophmore, so I have to figure that one out on paper... Goodluck finding somebody else with the answer

Answer 3

2/3y + 4 = 4 ? right? that's simple, subtract the four over
2/3y = 0 and then divide by 2/3
y = 0/ 2/3 remember zero divided by any number is zero, so
y = 0

Question 2: no problem, in order to get miles you need to divide your total number of kilometers by the amount of kilometers in one mile or . .
147km/ 1.609km your kilometers divide out and leave you with
91.36 miles

Question 3: this is simply an algabraic equation
.15x = 50 so divide 50 by .15 or 15%, and you find that a waiter needs to sell at least $333.33 to make $50 in tips.

Answer 4

1: what's 2x2? Does that mean 2 times 2? Or 2, the variable x and then 2?

2: are you trying to convert kilo to mile? if yes, then take 147 kilo meters times by 1 mile / 1.609 kilo. So pretty much it's 147/1.609

3: the equation should be .15x = 50 and solve for x

Answer 5

QUESTION 2: multiply the equivelant of one kilometer by 147 to get the number of miles

Answer 6

What is 2x2?
147/1.609=91.36miles
3) is $333.33 worth of food.
p/b=r/100
50/b=15/100
50*100=5000/15=333.33

Answer 7

you should use the section before the questions in your book that shows you how to do the problems. Or just use a scientific calculater.