Answer:
1 pound?
Step-by-step explanation:
4/4 = 1 * 1 = 1
the question in English
Mateo will reproduce a photo measuring 5 cm per side on a scale of 3/4
How much will the square side of the copy measure?
Will the size of the copy be larger or smaller than the original?
we know that
the scale factor is equal to ![\frac{3}{4}](https://tex.z-dn.net/?f=%5Cfrac%7B3%7D%7B4%7D)
Let
x----------> the original length side
y--------> the copy length side
![y=\frac{3}{4}*x](https://tex.z-dn.net/?f=y%3D%5Cfrac%7B3%7D%7B4%7D%2Ax)
we have that
![x=5\ cm](https://tex.z-dn.net/?f=x%3D5%5C%20cm)
substitute the values
![y=\frac{3}{4}*5=3.75\ cm](https://tex.z-dn.net/?f=y%3D%5Cfrac%7B3%7D%7B4%7D%2A5%3D3.75%5C%20cm)
therefore
<u>the answer Part a) is </u>
the length side of the copy measure is ![3.75\ cm](https://tex.z-dn.net/?f=3.75%5C%20cm)
Part b)
we know that
the size of the original photo is------> ![5*5=25\ cm^{2}](https://tex.z-dn.net/?f=5%2A5%3D25%5C%20cm%5E%7B2%7D)
the size of the copy is------> ![3.75*3.75=14.06\ cm^{2}](https://tex.z-dn.net/?f=3.75%2A3.75%3D14.06%5C%20cm%5E%7B2%7D)
so
![14.06\ cm^{2} < 25\ cm^{2}](https://tex.z-dn.net/?f=14.06%5C%20cm%5E%7B2%7D%20%3C%2025%5C%20cm%5E%7B2%7D)
therefore
<u>the answer part b) is</u>
The size of the copy be smaller than the original
What thats so long sjsusjdjss
For question 38 it would be C. -38 because -38 - 7 is -45 and -45 divided by 9 is -5.
Question 35 would be B. 4/5 because 80% converted into a decimal is 4/5.
Hope these helped!! :)