Answer:
6250
Step-by-step explanation:
Definition of the question
R=7 because you would do -49 divided by -7
Answer:
15
Step-by-step explanation:
24*5=120 / 8 = 15
15 is answer.
Joel = j, Mark = m, Sandra = s
j + m + s = 120
m = 3j
j = 1/2 s --> s = 2j
plug in (substitute) each letter to make it in terms of only j: j + m + s = 120
j + 3j + 2j = 120
6j = 120
6j/6 = 120/6
j = 20
now plug in for the j & s equation:
s = 2j = 2(20) = 40
Therefore Sandra has 40 coins!
