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stiks02 [169]
3 years ago
15

a rectangle has a width of 8m and length of 7m how does the area change when each dimension is multiplied by 5

Mathematics
1 answer:
hichkok12 [17]3 years ago
7 0

Answer:

The first thing we need to do is find the area of the rectangle...

<em>l x w = A</em>

<em>7 x 8 = 56</em>

So the area of the first rectangle is 56m.

Now we multiply each dimension by 5...

<em>8 x 5 = 40</em>

<em>7 x 5 = 35</em>

So, now the width is 40m and the length is 35m,

Then, find the area of the new rectangle...

<em>35 x 40 = 1400</em>

The area of this rectangle is 1,400m!

<em>1,400 / 56 = 25</em>

So, by multiplying each dimension by 5, the area is now multiplied by 25!

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klasskru [66]
19.2 * 10⁸ minutes.

60 minutes = 1 hour.

19.2 * 10⁸ minutes =  (19.2 * 10⁸) / 60  hour
                 
                              = 32 000 000 =   3.2 * 10⁷ hours

= <span>D. 3.200 × 10^7 ​h​</span>
3 0
3 years ago
-k+3k combine like terms to create an equivalent expression​
Nimfa-mama [501]

Answer:

2k

Step-by-step explanation:

3k and -k are both like terms, so you can combine them. Adding opposite signs works in the same way as subtraction, so you can rewrite the expression as 3k-k, which is 2k.

8 0
4 years ago
Find the whole quantity if 5 percent of it is 500​
liq [111]

Answer:

10,000

Step-by-step explanation:

500/0.05= 10,000

You take the amount you are given divided by the decimal form of the percentage you are given to find the answer.  It's a reverse from the way you find 5% of 10,000.

0.05=5%

Check your work: 10,000*5%= 500

5 0
3 years ago
For the pair of supply-and-demand equations, where x represents the quantity demanded in units of 1000 and p is the unit price i
Liono4ka [1.6K]

Answer:

7 and 6 respectively

Step-by-step explanation:

Firstly, we have to solve the equations simultaneously.

2x + 7p = 56

3x - 11p = -45

Multiply equation I by 3 and ii by 2

6x +21p = 168

6x - 22p = -90

Subtract the second from first to yield:

43p = 258

p = 6

Insert this in equation 1 where we have 2x + 7p = 56

2x + 7(6) =56

2x + 42 = 56

2x = 14 and x = 7

The equilibrium price is 6 and the equilibrium quantity is 7

8 0
3 years ago
3. Find the lengths of d<br> d<br> 15<br> 7<br> 6<br> 10
siniylev [52]

Answer:

15

Step-by-step explanation:

As you can see on the side it says 15 and that is the length of the structure and it would be the same all around

4 0
3 years ago
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