Answer:
Step-by-step explanation:
a = d before Anna gives away 50 marbles.
5 (a-50) = a +50 after Anna gives away 50 marbles.
5a - 250 = a + 50
4a = 300
a = 75
Anna has 75 marbles at the beginning and so did David.
Together they have 150 marbles.
:)
Answer:
$1200
Step-by-step explanation:
we know that,
I=PTR/100=200*4*3/100=100*4*3=400*3=$1200
Answer:
1/3
Step-by-step explanation:
Answer:11
Step-by-step explanation:
First multiply 4 and 2.
Which makes the equation 3+8
Which makes your answer 11
Answer:

Step-by-step explanation:
we have

Adds the terms
Group terms that contain the same variable

Combine like terms

where

therefore
