yo8denNaiiFingpopbo yo8denNaiiFingpopbo

24-12-2016
Mathematics

contestada

Variables x and y are in direct proportion, and y = 12.5 when x = 25. If x = 40, then y =
A) 20
B) 28.5
C) 52.5
D) 65
WILL UP PROVE

Respuesta :

texaschic101 texaschic101

24-12-2016

25/12.5 = 40/y
cross multiply
(25)(y) = (12.5)(40)
25y = 500
y = 500/25
y = 20 <====

Answer Link

Otras preguntas

On Monday, it took Helen 3 hours to do a page of science homework exercises. The next day she did the same number of exercises in 2 hours. If her average rate o

what was the crimean war?

Should spanish colonial settlers accept the new laws of 1542?

The density of aluminum is 2.70 g/cm3. Apiece of aluminum foil that is 1000 cm on each side has a mass of 440. mg. How thick is the piece of foil?

give me three reason that violence is acceptable

State whether set A and B are equal, equivalent, both, or neither. A = {9, 8, 7} B = {8, 9, 10}

Hey, need some help "hew" means.. 1. to cut with an axe 2. to imitate 3. to express woe 4. a sudden attack

There are 49,000 seats in a sports stadium. Tickets for the seats in the upper level sell for $25, the ones in the middle level cost $30 and the ones in the low

The coins in the store s cash register total $12.50. The cash register contains only nickels, dimes, and quarters. There are twice as many dimes as nickels. The

Three of four numbers have a sum of 22. If the average of the four numbers is 8, what is the fourth number?