Answer:
The total number of boys = 105
Step-by-step explanation:
The ratio of boys to girls = 3: 4
⇒ For every 3 boys, there are 4 girls.
Now, total number of students = 245
Let the common ratio of boys to girls is k.
So, 3k + 4k = 245
or , 7k = 245
⇒ k = 245/7 = 35
⇒ k = 35
Hence, the number of boys = 3k = 3 x 35 = 105
and number of girls = 4k = 4 x 35 = 140
15/16, 7/8, .8
because 7/8=0.875 and .875>.8
15/16 = 0.9375
0.9375> 0.875 > .8
Answer:
66/100 (or simplify to 33/50), 0.89
Step-by-step explanation:
Answer:
x = 20.5
Step-by-step explanation:
Since you are given the hypotenuse and the adjacent side to 70 then you have the cos 70 = adj/hyp so cos 70 = 7/x so x = 7/cos 70, so x = 20.467