Wiki User
∙ 9y ago4 pencils cost 10 cents so pencils are 10/4 cents each.
So 50 cents will buy 50*4/10 = 20 pencils
Wiki User
∙ 9y agoWiki User
∙ 14y ago4 pencils cost 10 cents so pencils are 10/4 cents each.
So 50 cents will buy 50*4/10 = 20 pencils.
Anonymous
10 × 5 = 50 so it is obvious that you must multiply 4 with 5, because 10 is multiplied by 5, your answer will be
20 pencils, can be bought with 50 cents
3x12x2=72
30 pencils.
75
I'll represent the cost of a pencil by the variable p.12p=1.44p=1.44/12p=0.12So 4 pencils would cost:4p=0.12*44p=0.48
12
3x12x2=72
30 pencils.
x= # of pencils that cost .45 y= # of pencils that cost .65 So now you need 2 equations for 2 variables: 15= x+y This equation is saying: 15 total pencils bought= pencils that cost .45 + pencils that cost .65 The second equation is: 7.75= .45x + .65y This equation is saying: total money spent (7.75)= price of pencils (.45) times # of pencils + price of pencils (.65) times # of pencils Then you combine these two equations, but first switch around the first equation to look like: y=15-x Then you replace the "y" in the second equation by putting in what y equals the first equation: 7.75= .45x + .65(15-x) Then distribute and solve for x: x = 10 Then enter 10 into the first equation for x to figure out y: y= 15- 10 y= 5 So your answer is-- Ray bought 10 pencils that cost .45 and 5 pencils that cost .65
75
36 (that is the 12 given away + the 24 left)
Eighteen pencils !
I'll represent the cost of a pencil by the variable p.12p=1.44p=1.44/12p=0.12So 4 pencils would cost:4p=0.12*44p=0.48
33 pencils would cost 6.93, so that is the most you could get.
Each inch of wire cost 3 cents and so 24/3 = 8 inches of wire
A gross is one dozen dozens, or 144 of something. Multiply 144 times 3.
12
first how many people are in your class say you had 25 people.... 1. you divided 56.25 by the people in your class(25) (56.25 divided by 25= 2.25) 2. then you put it in cents= 225 take away the decimal