5 least common multiple is 5 nines is 3 and thirty's is 3
Represent
d=number of dimes
q=number of quarters
thererfor
q+d=23
1q=0.25
1d=0.10
therefor
total value=3.35=0.25q+0.1d
so we have
q+d=23
0.25q+0.1d=3.35
solve
q+d=23
subtract q from both sides
d=23-q
subsitute
0.25q+0.1(23-q)=3.35
distribute
0.25q+2.3-0.1q=3.35
group like terms
0.25q-0.1q+2.3=3.35
add like terms
0.15q+2.3=3.35
subtract 2.3 from both sides
0.15q=1.05
multipliy both sides by 100 to get rid of decimal
15q=105
divide both sides by 15
q=7
subsitute
q+d=23
7+d=23
subtract 7
d=16
7 quarters
16 dimes
Answer:
240 peanuts
Step-by-step explanation:
Let x be the number of peanuts Mr. Allen had.
Zach got half the peanuts, then Zach got 
peanuts and
peanuts left.
Wendy got one-fourth of what was left, then Wendy got
peanuts and
peanuts left.
The twins, Ron and Don shared the remaining peanuts, then each of them got
peanuts.
If Ron got 45 peanuts, then
Answer:
chocolate cones sold = 18
please give me brailiest!!
Step-by-step explanation:
4 vanilla = 6 chocolate = 10 ice creams in total
(4*3) 12 vanilla = (6*3) 18 chocolate =30 ice creams in total
Answer:
a^2 + b^2 - c^2 + 2ab
Step-by-step explanation:
(a + b - c)(a + b + c)
1. expand
(a^2 + ab + ac + ba + b^2 + bc - ca - cb - c^2)
2. rearrange,
(a^2 + b^2 - c^2 + ab + ba + ac - ca + bc - bc)
3. add and subtract
(a^2 + b^2 - c^2 + 2ab)
