D=4q
25q+10d=195
5q+2d=39
sub 4q foro d
5q+2(4q)=39
5q+8q=39
13q=39
divide 13
q=3
d=4q
d=4(3)
d=12
12 dimes
3 quarters
Raul has 56 bouncy balls
he puts the balls into red gift bags and green gift bags
so lets say he puts x number of balls into green gift bags
then we are told that he puts three times as many balls into red gift bags as he puts into green gift bags
so the number of balls he puts into red gift bags is - 3 * x = 3x
the total number of balls = 56
so we can write the following equation
x + 3x = 56
4x = 56
x = 56/4
x = 14
therefore the amount of balls he puts into green bags is - 14 balls
Answer:
he needs 20.25 bags of sand and it would cost her 80.79
Step-by-step explanation:
150cm*90cm*15cm=202,500cm^3 this is how much sand she needs to fill it
202,500cm^3/10,000cm^3=20.25 this is how many bags he needs
3.99*20.25=80.79 this is how much it'll cost him for all 20.25 bags
Step-by-step explanation:
x+3/x-2 - 1-x/x= 17/4
now let's put the expression on the upper side so it I'll be
x+3-x-2-1-x-x= 17×14
x-x-x-x+3-2-1= 238
+3-3= 238
= 238 answer
