9514 1404 393
Answer:
first triangle -- side: 304.8 mm; perimeter: 914.4 mm
second triangle -- side: 863.6 mm; perimeter: 2590.8 mm
Step-by-step explanation:
We are given two equilateral triangles. The perimeter of the second is given as 102 inches, so its sides have length 102/3 = 34 inches. This is 2 less than 3 times the side length in the first triangle. So, adding 2 will give 3 times the side length of the first triangle: 36 inches, which also happens to be its perimeter. Those side lengths are 36/3 = 12 inches.
Now, we know:
first triangle -- side length 12 inches, perimeter 36 inches
second triangle -- side length 34 inches, perimeter 102 inches.
These measurements are desired in millimeters. Each inch is 25.4 millimeters, so we can find the desired measures by multiplying these numbers by 25.4.
12×25.4 = 304.8; 36×25.4 = 914.4
34×25.4 = 863.6; 102×25.4 = 2590.8
The desired lengths are ...
first triangle -- side: 304.8 mm; perimeter: 914.4 mm
second triangle -- side: 863.6 mm; perimeter: 2590.8 mm
Answer:
c = 27
Step-by-step explanation:
If c divided by 9 equals to 3, then the other way around would be 3 times 9 equals to c, which is how you would get 27. If you look at PEMDAS, multiplication and division are together and work the other way around when used with each other, just like addition and subtraction.
I know this is kind of a lame answer with no fancy math words to back it but please, it's the best I could do.
Answer:
one solution only
Step-by-step explanation:
16y + 7 = -3y + 10 + 8y
16y + 3y - 8y = 10 - 7
11y = 3
y = 3/11
P=10C2×<span>.1^2</span>×<span>.9^8. You should know how to calculate from here.</span>
Answer:
6 in
Step-by-step explanation:
The <em>area</em> of a picture <em>is</em> 25 7/5 square inches. If the width of the picture is 4 1/2 inches, what is the length? <em>(A=(w)(l) </em>)
Assuming that your "25 7/5 square inches" is not a mistake, then this is equivalent to 26 2/5 square inches.
Converting 26 2/5 sq. in. to an improper fraction, we get 132/5 sq. in., which represents the area of the picture. If the width is 4 1/2 inches, or 9/2 inches, then the length, l, is:
132/5 in^2
l = ------------------
9/2 in
To divide 132/5 in^2 by the fraction 9/2 in, invert 9/2 and multiply:
135 in^2 2
l = -------------- * ------ = 270/9 in = 30/5 in = 6 in
5 9
