Answer:
Step-by-step explanation:
Given that a medical study investigated the effect of calcium and vitamin supplements on the risk of older Americans for broken bones. A total of 389 older Americans who lived at home and were in good health were studied over a three-year period. While all of the 389 people took in at least 700 milligrams of calcium and 200 units of vitamin D through their normal diet, 187 of them were given additional supplements containing 500 milligrams of calcium citrate and 70 units of vitamin D daily. Of the 187 who took additional supplements, 11 of them suffered broken bones over the three-year period. Of the 202 older Americans who did not take the additional supplement, 26 of them suffered broken bones over the study period.
Group I Group II Total
n 187 202 389
favour x 11 26 37
The fraction of older Americans who were included in the study suffered broken bones during the three-year period
=Total x/total n
=
We first write the word in math as x+3/5 = 5/7. Now we cross multiply our fractions and rewrite them with the LCD of 5 and 7. Our equation now looks like x + 21/35 = 25/35. We simplify our equation by subtracting 21/35 from both sides to get x = 4/35. 4/35 is already in lowest terms so it is our answer.
Answer:
50 classmates
Step-by-step explanation:
80 x 0,62 = 49,6
49,6 ≈ 50
Answer:
The area of a parallelogram is its base times its height.
Step-by-step explanation:
Area is for 2 dimensional shapes. (Shapes with two dimensions in parallelograms they are often referred to as base times height, or length times width). Area is the space inside a two dimensional object, and to find this use the length and the height to find the space in the 2-D figure.
Side note: Volume is "the area of 3 dimensional figures". Three dimensions meaning Length, Width and Height. So there is no area for 3-D figures. (unless you are using Surface Area)
Hope this Helps!
Answer:
Step-by-step explanation:
Formula =P×R×T=I
P×11/100×6=4500
66/100p=4500
100/66×66/100=4500×100/66
P=6818.1818.......
=6818.18
