Answer:
The number of nickels is 29 and the number of dimes is 12
Step-by-step explanation:
Let
x -----> the number of nickels
y ----> the number of dimes
Remember that
1 nickel=$0.05
1 dime=$0.10
we know that
0.05x+0.10y=2.65 -----> equation A
x=3y-7 ------> equation B
Solve the system by graphing
The solution of the system is the intersection point both graphs
The solution is the point (29,12)
see the attached figure
therefore
The number of nickels is 29 and the number of dimes is 12
Answer:
77) YES , 78) YES , 79) NO , 80) YES
Step-by-step explanation:
77) 12/4=3 and 18/6=3 so YES
78) 30/6=5 and 40/8=5 so YES
79) 36/25=1.44 and 48/40=1.2 so NO
80) 15/5=3 and 13.8/4.6=3 so YES
Use the algorithm method. Then multiply. The answer should be 135.
If you don't know what algorithm is, it's when you put a number over a number. And multiply it.
Answer:
7.3 in
Step-by-step explanation:
area = 27 = 54/2 = (x^2)/2
so what squared is 54?
7.34 whatever inches.
round it down, that's 7.3.
Well, since it regulates water movement, it wouldn't be B. and since it is water movement INTO AND OUT OF THE CELL, it wouldn't be C. Since the CV expels water from the cell by contracting, its main purpose is not A. The Answer Is D. because it helps the organism maintain osmotic pressure by taking in or releasing water.