Answer:
The number of nickel coins is 10 and the number of quarter coins is 5
Step-by-step explanation:
<u><em>The correct question is</em></u>
Mary has 15 coins with the total value of $1.75 if the coins are nickels and quarters how many of each kind are there
Let
x ----> the number of nickel coins
y ----> the number of quarter coins
Remember that
we know that
Mary has 15 coins
so
-----> equation A
The total value of the coins is $1.75
so
----> equation B
Solve the system by graphing
Remember that the solution is the intersection point both graphs
using a graphing tool
The solution is the point (10,5)
therefore
The number of nickel coins is 10 and the number of quarter coins is 5
I do believe it would be x=30
Answer: 1575
Step-by-step explanation:
Volume of Pyramid: b*l*h/2 = 21*9*7/3 = 441
Volume of Rectangular prism = V= lwh = (21*12*9)/2 = 1134 (divide by two because it is half of a rectangular prism)
441 + 1134 = 1575
Answer:
TT , TW , TL , LT , LW , LL , WT , WW , WL
Step-by-step explanation:
They tell us that Maggie's fubtol team can can win (W), lose (L), or tie (T) each game, which means that it has 3 possible results and is two games, therefore the number of results would be :
Hence 2 Games will have 3² possible out comes.
3² = 9
In other words, there are a total of 9 possible results, distributed as follows:
T W L
T W L T W L T W L
TT TW TL WT WW WL LT LW LL
It means that the possible outcomes are:
TT , TW , TL , LT , LW , LL , WT , WW , WL
Answer:
47
Step-by-step explanation:
Let the score of your first quiz be "x"
x-8=39
39+8=47
