Help me on this I don't get maths

Mathematics

2 answers:

Sergeu [11.5K]3 years ago

4 0

-9 2/7 > -9.3 because -9 2/7 is -9 20/70 and -9.3 is -9 21/70

Vlad [161]3 years ago

4 0

-9 2/7 change to decimal divide 2 by 7 = .29 = -9.29

-9.3 leave alone

I assume it is asking which is greater or if its equal

-9.29 > -9.3 -9.29 is greater because it is the smaller on the negative side of the number line which means it is closer to 0

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Joe began to increase the speed of his car at 2:00 P.M. Since that time,the speed of Joes car has been steadily increasing by 1

Olegator [25]

Answer:

7 mins

Step-by-step explanation:

Current speed of Joes Car = 65.5 mph

We have to find the time interval for which the car exceeded the speed limit of 55 mph.

While, we are given that the speed of the car was constantly increasing, hence the speed over all increased from the limit of 55 mph = 65.50-55.00 = 10.50 mph

We are also given that Joes car was increasing speed at a constant rate of 1.50 mph for every passing minute. Hence

1.50 mph is increased in 1 minute

1 mph will be increase in $\frac{1}{1.5}$ minutes