Subtract 7a from both sides giving you 10=-5a and divide everything by 5. This gives you a=-2
Answer:
22.4 cms.
Step-by-step explanation:
If 0.5 meters = 1 centimeter, 1 meter = 1/0.5 = 2 cms on the drawing.
So 11.2 meters = 11.2 *2 = 22.4 cms (answer).
Answer: y=6
Step-by-step explanation:
The given number is y.
According to the question,
Step 1 . subtracts three from the number (y-3), then doubles it
i.e. Final number = 2(y-3)
Step 2 . subtracts three again i.e. (2(y-3)-3), and doubles the number again
i.e. Final result = 2(2(y-3)-3)
If the result is his original number y, then
2(2(y-3)-3) =y
⇒ 2(2y-6-3)=y [ using distributive property]
⇒ 2(2y-9)=y
⇒ 2(2y)-2(9)=y [ using distributive property]
⇒ 4y -18=y
⇒ 4y -y= 18
⇒ 3y= 18
⇒ y= 6 [Divide both sides by 3]
Hence, y=6
Answer:
5,9,2
Step-by-step explanation:
Answer:
60/25
Step-by-step explanation:
The other way to express the ratio is to express it in the form of division
Hence
60:25=60/25
