The answer to this is 150.
Answer:
4 to the -4 power
Step-by-step explanation:
multiply the 4's and add the exponents. then divide by 4 and divide by that exponent
The value of the coin times the number of coins all added up equals the total value of the piggy bank
so
0.05n + 0.10d = 5.60
then they have given us "number of nickels is 8 less than 3 times the dimes"
this translates to
n = 3d - 8
we plug this into our first equation and we get
0.05(3d - 8) + 0.10d = 5.60
now we solve for d
first we can distribute the 0.05
0.15d - 0.40 + 0.10d = 5.60
then we can add the 0.15d and 0.10d together
and get
0.25d - 0.40 = 5.60
then we can add 0.40 to both sides
0.25d = 6.00
then divide both sides by 0.25
d = 6.00 / 0.25 = 24
so we have 24 dimes
then to find nickels, we plug in 24 for d into
n = 3d - 8
and get
n = 3(24) - 8
n = 72 - 8
n = 64
therefore we have
64 nickels
and
24 dimes
I'm a little confused by this. 1/2 is too big, but 1 1/2 is too small?
Answer:
FE = 14.4
Step-by-step explanation:
Cos = Adj / Hypo.
So
Cos (F) = FE / DF
Cos (26) = FE / 16
FE = Cos (26) * 16
FE = 0.8988 * 16
FE = 14.4