52,458<52,485
52,485-52,458=27
Answer:
<h2><em><u>45</u></em></h2>
Step-by-step explanation:
3(4 + 5 + 6)
= 3(15)
= 3 × 15
= <em><u>45 (Ans)</u></em>
Answer:
(-3, -4)
Step-by-step explanation:
y= -4
so you plus y in for the y=2x+2 equation where you get x=-3
Answer:
i think ii first add 5x + x then you can remove the parentheses, group similar terms and add similar elements
Step-by-step explanation:
Maria = x
Tom = y
Use substitution
x+y=30
2y=x
2y+y=30
3y=30
y=10
Tom is 10 years old.
x+y=30
x+10=30
x=20
Maria is 20 years old.