Answer:
70
Step-by-step explanation:
2 + 10 = 12
84 ÷ 12 = 7
7 x 10 = 70
She graded 70 maths papers and 14 science papers.
Among the statements, this is the true one.
∠BCO is complementary to ∠BOC
ΔBCO is a right triangle. B is 90°.
Interior angles of a triangle = 180°. With B as 90°, the remaining angles, C and O, must total 90°. Thus they are complementary.
Hi there!
If you wanted to show your work, a good idea would be showing what numbers you would approximate or round the two numbers to, and divide the numbers.
Hope this helps!
Answer:
40 girls
Step-by-step explanation:
First you set up a proportion. 4 over 5 is equal to 32 over x
Use the baseball bat method (look up baseball bat method proportions and go to images if you dont know this is just how i learned it)
bb bat method gives you
32x5= 160
160/4= 40