Answer:
That's hard u should scan and look at other ppl that answered that
Hey!
So what I did was I divided 42.84 by 6.12 to see that the answer is 7 and that is an answer choice.
But you should keep checking.
299.88 / 42.84 = 7
2099.16/299.88 = 7
There is a common ratio and it is 7
A is the answer!
Hope this helps!
Answer:
<u>CIRCLE : CIRCLE</u>
Ratio of area is the scale factor squared. So find the radii of the two circles, square both values, and simplify the ratio.
<u>SQUARE : SQUARE</u>
Ratio of area is the scale factor squared, So find the side lengths of the two squares, square both values, and simplify the ratio.
<u>SQUARE : CIRCLE</u>
Using the formulas A = s*s and A = pi*r^2, find the areas of the circle and the square. Then simplify the ratio.
If a number is besides each other (you'll know because of the brackets), then it means to multiply.
So this question is basically saying: 1.9 x 8.43
You can then use my strategy (which I don't know the name of) to answer this.
1.9 x 8.43 ---(Take away the decimal)---> 19 x 843
Then times the hardest number with the easiest one. (I'm rounding so it's easier)
843 x 20 = 1686
1686 - 84.3 = 1601.7 = 843 x 19
Then, however decimal places there was, add it to the answer.
1.9 x 8.43 has 3 decimal places, so,
16.017 is the answer.
X = The cost of each book of stamps
There for your expression would be:
3x + 4.50
3x is 3 book of stamps times x cost of each book.
Your 4.50 is your one time fee to mail the package.
Hope this helps! (: