Five more than twice a number is -13
2 answers:
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Answer:
74.56 miles / h
Step-by-step explanation:
1 mile = 1.609 km
Using the dimensional analysis you multiply the number you want to convert by 1 (using a fraction with the needed units)
Since 1 mile = 1.609 km then:
Now to convert 120 kilometers per hour to miles per hour :
Answer:
C. 3.4 feet
Step-by-step explanation:
Let, the amount of increase be 'x' feet.
As, the length and width of the garden are 20 ft and 12 ft respectively.
It is given that the area of the new garden is 360 ft²
Since, the length and width are increased by 'x'.
The new length and width are (x+20) ft and (x+12) ft respectively.
So, we get,
New area, = length × breadth = (x+20) × (x+12)
i.e. 360 =
i.e.
i.e. (x+35.4)(x-3.4)=0
i.e. x = -35.4 and x= 3.4
Since, the value of x cannot be negative.
Thus, x = 3.4 feet.