Answer:
peter will have 123 stamps.
Step-by-step explanation:
This is because 53 times 3 is 159. Sarah has 159 stamps. Subtract 45 from 159 and you will get 123.
Answer:
Ellen invested $60 and Bob invested $140
Step-by-step explanation:
let the two amounts invested by 3x and 7x
(notice 3x : 7x = 3 : 7 )
then 3x + 7x = 200
10x = 200
x = 20
then 3x = 3(20) = 60
and 7x = 7(20) = 140
60+140=200
Answer:
Yes the y-intercept is -1 so True
Yes the rate of change or slope is 2 so True
And Yes the equation is not y=2x+1 it is suppose to be y=2x-1 so False
Step-by-step explanation:
Hope this Helps!
Answer:

Step-by-step explanation:
We have an extremely large equation and are asked to divide it, so let's solve it step-by-step :
Remove the parenthesis to make it easier to read :

Multiply the numerators :

Multiply the denominators :

Apply the negative rule :

Cancel the common factor which is 18 :

Apply the addition exponent rule :

Subtract :

Apply the rule for y :

Subtract :

Cancel the common factor of z^3 :

Answer:
-0.146
Step-by-step explanation:
log 5 = 0.699
log 7 = 0.845