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3 years ago

Determine LaShawn's average speed in meters per hour

1 answer:

6 0

His average speed per minute is 1,448 meters per minute, and there are 60 minutes in a single hour. You would multiply 1,448 by 60 to get the answer of 86,880 meters per hour.

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gillian earns 7.50 and hour babysitting on the weekends last week she babysat for 2.2 hours on Saturday and 3.5hours on Sunday h

ivolga24 [154]

Gillian earned $42.75 total. On Saturday (2.2 hours * 7.50 per hour) she earned $16.50. On Sunday (3.5 hours * 7.50 per hour) she earned $26.25. $26.25 + $16.50 = $42.75.

6 0

4 years ago

Read 2 more answers

What is the surface area of a sphere with a radius of 10 feet? (Use 3.14 for π.)

LiRa [457]

I Believe That The Answer Is
B. 1256 ft^2

5 0

4 years ago

Sonny and logan where driving go carts around the track. Sony took 15 minutes to drive 1 lap, it took logan 9 minutes to drive a

tamaranim1 [39]

Answer:

45 minutes

Step-by-step explanation:

Let, after time $t$ minutes, they meet again at the same point.

In time $t$ minutes, let Sony completes x lap while Iogan completes y laps. Note that x and y must be the counting numbers.

As Sonny took 15 minutes to drive 1 lap, so,

$t=15x\cdots(i)$

While Iogan Sonny took 9 minutes to drive 1 lap, so,

$t=9y$

$\Rightarrow 15x=9y$ [from equation (i)]

$\Rightarrow \frac {x}{y}=\frac{9}{15}$

$\Rightarrow \frac {x}{y}=\frac{3}{5}$

As x,y must be counting number, so

(x,y)=(3,5),(6,10),...,(3n,5n) where n is a positive integer.

So, the minimum number of laps required are

x=3 and y=5 (when they meet for the first time)

Now, from equation (i),

The time required to meet them for the first time, t=15x3=45 minutes.

7 0

4 years ago

Find a number when multiplied by radical 2 increases by 2

AfilCa [17]

Answer:

$\sqrt{2} \: x + 2$

Step-by-step explanation:

Let x be the variable.

$Multiplied \: by \: radical \: 2 = \sqrt{2} \: x \\ increased \: by \: 2 = \sqrt{2} \: x + 2 \\ \purple{ \bold{ \therefore \: number = \sqrt{2} \: x + 2}}$

4 0

3 years ago

Please help, I need correct answers

photoshop1234 [79]

Let t= time in hours, b= no of keychains made by brad, v=no of keychains made by velma.
b=4t
v=3t+6

equate b and v to get time t when they have equal keychains.

so, 4t=3t+6
so, t=6 hours

3 0

3 years ago