Answer:
3.06
Step-by-step explanation:
Alex writes, ''two distinct lines are parallel when they do not meet.''
Briana writes, ''two distinct lines are parallel when they have the same slope.''
Analyze each definition, indicating if it is mathematically correct and if it has any drawbacks.
helpp pleaseee
Briana is correct because she is smart
Step-by-step explanation:
Briana is correct because she is smart
2 12 over 5 and 2 ( whole number) 3 over 7. Which is the greatest?
3. List 3 fractions between 1 over 2 and 7 over 8
4 List 3 fractions between 1 over 8 and 3 over 4
Sorry, I don't know how to write this in fraction form on my laptop.
By solving a system of equations we will see that Sandy has 20 nickels and 15 dimes.
We need to define the variables:
We know that there are 35 coins so:
x + y = 35
And the total values if $2.50, then:
x*$0.10 + y*$0.05 = $2.50
Then our system is:
x + y = 35
x*$0.10 + y*$0.05 = $2.50
To solve this, we need to isolate one of the variables in one of the equations. I will isolate x on the first equation:
x = 35 - y
Now we replace this on the other equation:
(35 - y)*$0.10 + y*$0.05 = $2.50
$3.5 - y*$0.05 = $2.50
$3.50 - $2.50 = y*$0.05
$1.00/$0.05 = y = 20
So there are 20 nickels and the other 15 coins are dimes.
If you want to learn more about systems of equations, you can read: