Answer:
x ≈ 2.76
Step-by-step explanation:
Using the tangent ratio in the right triangle
tan78° =
=
=
( multiply both sides by x )
x × tan78° = 13 ( divide both sides by tan78° )
x =
≈ 2.76 ( to 2 dec. places )
30%
percent means parts out of 100 so 30%=30/100=3/10
42 is 3/10 of x
'of' can be translated to multiply
42=3/10 times x
multiply both sides by 10/3 to get rid of fraction
420/3=x
140=x
the number is 140
Answer:
80
Step-by-step explanation:
3/2 I'm pretty sure idk if I'm right though but you'll do good!
Answer:3
Step-by-step explanation: