Horatio has 57 coins consisting of nickels, dimes, and quarters. he has twice as many dimes as
nickels. if the coins are worth a total of $7.25, which system of equations is used to determine
how many of each coin horatio has?
in + d + 9 = 57
n = 20
5n + 10d + 259 = 7.25
n + d + 9 = 57
n = 2d
0.05n + 0.100 + 0.259 = 7.25
nt d + 9 = 57
d = 2n
5n + 10d + 259 = 7.25
nd + 9 = 57
d = 2n
0.05n + 0.10d + 0.259 = 7.25

7 weeks

step-by-step explanation:

convert each fraction to the least common multiple of 20, so 3/4 = 15/20 & 1/10 = 2/20, then divide 15 by 2 and you get a little over 7, so the food will last 7 weeks.

step-by-step explanation :

we know that

the measurement of the outer angle is the semi-difference of the arcs which comprises

in this problem

m< xzy is the outer angle

substitute the values

the measure of angle xoy is equal to

> by central angle

substitute the value

answer 1 : option "c"

answer 2 : option "d"

answer 3 : option "b"

answer 4 : option "d"

answer 5 : option "b"

answer 6 : option "a"

answer 7 : option "c"

answer 8 : option "d"

answer 9 : option "c"

answer 10 : option "d"

answer 11 : option "c"

answer 12 option "b"

answer 13 option "c"

answer 14 option "c"

answer 15 option "d"

answer 16 option "a"

answer 17 option "b"

answer 18 option "c"

answer 19 option "a"

answer 20 option "a"

answer 21 option "c"

d

step-by-step explanation:

659