Step-by-step explanation:
Let F = The number of $5 bills and T = the number of $10 bills. She has 15 bills total, so:
F+T = 15
T = 15-F
She has $120 total:
$120 = ($5)*F + ($10)*T
$120 = $5*F + ($10)*(15-F) [Substitute 15-F in place of T]
120 = 5F + 150 - 10F
-30 = -5F
6 = F
Check:
T= 15-F = 15=6 = 9
$120 = ($5)*6 + ($10)*9
$120 = $30 + $90
$120 = $120
Answer:
Infinitely many solutions
Step-by-step explanation:
Because 4(x+2)=4*x+4*2=4x+8.
Answer:
good luck with this, i have got a good mark in this lesson back then and i would gladly like to help you miss gilr
Step-by-step explanation:
Answer:
23/35
Step-by-step explanation:
Probability ratio will be expresses with denominators of 12+7+16=35
Probability of selecting carmel is 12/35
Probability of selecting mints is 7/35=1/5
Probability of selecting chocolates is 16/35
Probability of not selecting a carmel will be given by 1-probability of selecting a carmel since maximum probability is always 1 or 100%
Probability of not selecting a camel will be 1-12/35=35/35-12/35=23/35
Alternatively, the probability of not selecting a carmel is equivalent to the sum of probability of either selecting a dark chocolate or mint which will be 7/35+16/35=23/35
The answers are the same, 23/35
