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3 years ago

A)

Mathematics

1 answer:

Monica [59]3 years ago

4 0

Answer: a) P=10c b) A=4(c^2)

Step-by-step explanation:

the length of each side is c

a) the perimeter is the border of the whole shape. we can see here there are 4 squares but together. each square has 4 sides however since they are connected, we only count 10 of them for the perimeter. 4 for the top and bottom and 1 on each side (4+4+1+1)=10. so it would be 10c

b) area is width x length. which is c x c or c^2. multiply this by however many squares there are. in this case its 4. so it would be 4 x (c^2) or 4(c^2)

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Tony runs to keep fit. He wants to run a total of 20 km each week. Here are the

IgorLugansk [536]

Answer:

Tony run 19.5 km last week, so he must have run 0.5 km more, to complete 20km run last week.

Step-by-step explanation:

Distance Tony ran last week are

6.25 km

4 km 750 m

872 km (<em>Note: This would be 8 </em> $\frac{1}{2}$ <em> km and not 872 km</em>)

We will add all the distances to check if they sum up to 20km or not.

First we will convert 4 km 750 m into km

We know that 1000 m = 1 km

So, 1 m = 1/1000 km

750 m = 750/1000 = 0.75 km

Now 4km + 0.75 km = 4.75 km

So, 4 km 750 m = 4.75 km

and 8 $\frac{1}{2}$ km = 8.5 km

Now, finding Distance covered by Tony during last week = 6.25 km + 4.75 km + 8.5 km

= 19.5 km

So, Tony run 19.5 km last week, so he must have run 0.5 km more, to complete 20km run last week.

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3 years ago

What does r stand for in this equation?5(6r+7)-1=-86

cestrela7 [59]

I hope this helps you

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4 years ago

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Scorpion4ik [409]

Answer:

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Step-by-step explanation:

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3 years ago

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vivado [14]

Answer:

(1, -1), (1, -2), (2, -3), (2, -4)

Step-by-step explanation:

✔️Each ordered pair is written as (input, output).

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(1, -1), (1, -2), (2, -3), (2, -4)

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3 years ago

One-half of Heather's age 2 years from now plus one-third of her age three years ago is twenty years. How old is she now?

viktelen [127]

She is 24
24+2=26
26(1/2)=13
13+((24-3)1/3)
13+(21*1/3)
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3 years ago