The answer is definitely false
Step-by-step explanation:
Q5. Let the cost of 28subscriptions be $s.
Words: 1subscription/28subscription = $21/$28
Numbers: 1/28 = 21/s
Cross multiply and solve: 1 x s = 21 x 28
s = 588
Answer with label: $588
Q6.
Words: 2inches/3.6inches = 2.5hours/bhours
Numbers: 2/3.6 = 2.5/b
Cross multiply and solve:
2 x b = 2.5 x 3.6
2b = 9
b = 4.5
Answer with label: 4.5hours
General rule for multiplication or division between 2 numbers:
if you multiply or divide by:
1. same signs, answer is postive
2. different signs, answer is negative
so we have a -12 and a +9.9 so the answer is negative
then you divide 12 by 9.9
so the answer is negatiive, remember that
then divide as if positive
do
12/9.9
multiply by 10/10
120/99
simplify
120/99
factor out the 3/3
40/33
do the division (you can use calculator)
1.212121212121212121212121212
then it is negative so
-1.212121
Answer:
280
Step-by-step explanation:
You have to convert the 12:15 ratio to 4:3
Then divide 350 by 5 = 70
Then you have to multiply the 70 by the 4 to get 280
please make my answer the brainliest