You will need to use FOIL for this, or distribute.
So you will multiply -7y and 5y, then -7y and 3
Multiply 2 and 5y, then 2 and 3
You will get: -35y²-21+10y+6
Combine like terms:
-35y²+10y-15
There you go!
So 3/5 of boys had rockets
2/9 of (boys that had rockets) had streamers
3/5=boys that had rockets
subsitue
2/9 of 3/5
'of' means multiply
2/9 times 3/5
remember that a/b times c/d=(ac)/(bd) so
2/9 times 3/5=(2 times 3)/(9 times 5)=6/45=2/15
so 2/15 of the boys had streamers
Answer: She should choose Elite cars because its $6 cheaper than Cars 4 hire.
Working out:
1) Elite Cars:
(0.30 x 80) + 25
= 24 + 25
= $49
2) Cars 4 Hire:
(0.25 x 80) + 35
= 20 + 35
= $55
Answer:
D
Step-by-step explanation:
plug in (3,2) to see if it's a solution:
A) does -3(3) + 2 equal -7? yes
B) since 'A' is a solution then 'B' cannot be the answer
C) since (3,2) is a solution then 'C' cannot be the answer
plug in (2,-1) to see if it's a solution:
plug in (2,-1) to see if it's a solution:
-3(2) - (-1) equal -7? no, it equals -5
only (3,2) is a solution so the answer is D
Answer:
0.8 Miles per minute. 1.6 miles in 2 minutes
Step-by-step explanation:
It says 48 miles for 60 minutes. But we only want one minute, so we can divide 60 to get 1 and divide 48 by 60 to get 0.8 for 1 minute.
For the second question you want 2 munutes so you multily this rate by 2 (0.8*2) to get 1.6 miles.
Hope this helps
:)