Answer:
$10 coins: 21
$20 coins: 24
Step-by-step explanation:
heyy me again
So we can create 2 equations where
x = number of $10 coins
y = number of $20 coins:
x + y = 45
10x + 20y = 690
we can move equation 1 around so that we can get a value of x
x = 45 - y
now we can substitute x into the second equation
10(45 - y) + 20y = 690
450 - 10y + 20y = 690
10y = 240
y = 24
Now plug in y back into the first equation
x = 45 - y
x = 45 - 24
x = 21
265 x 0.06 = 15.9
265 - 15.9 = 249.1
249.1 is your answer
hope this helps
Answer:
5
Step-by-step explanation:
3*1*5/3=5
Since this is a division problem with a fraction, you must multiply by its reciprocal.
56 x 11/8:
56 x 11= 616
New fraction is 616/8
This simplified is 77
Answer is 77
Answer:
2log₅(x) - 2log₅(4)
Explanation:
Note the following rules before we begin:
log(a) - log(b) = log(a/b)
2log(a) = log(a²)
Now, for the given, we will work backwards as follows:
log₅(x/4)² = 2 [ log₅(x) - log₅(4)]
= 2log₅(x) - 2log₅(4)
Hope this helps :)