Answer:
Step-by-step explanation:
=3+(18-6)+20÷4
=3+12+20÷4
=3+12+5
=20
use BODMAS rule (Bracket of Division, Multiplication, Addition, and Subtraction)
Answer:
90 or -270
Step-by-step explanation:
Height over shadow
H/S
9 in is 9/12=.75
So
Boys height /shadow. Flags height /shadow
4.75/6= X/19
Cross multiply
6x= 90.25
Divide by 6
X= 15.0
Grams of cocoa =30% of 50g=(30/100) * 50 g=(30 * 50 g)/100=15 g
Soltution: 15 g
