Answer: 3/14
Step-by-step explanation:
From the question, we are informed that a motor racing curcuit has length of 5 5/6 miles and a straight section of the curcuit has length of 1 1/4 miles.
To calculate the fraction of the curcuit that is the straight section m, we divide 1 1/4 miles by 5 5/6 miles. We need do convert the fractions to improper fraction first. This will be:
1 1/4 = 5/4 and 5 5/6 = 35/6
This will then be:
= 5/4 ÷ 35/6
= 5/4 × 6/35
= 30/140
= 3/14
Answer:
188
Step-by-step explanation:
3(8^2)-4
3(64)-4
192-4
188
Answer:
they need to sell 13 pizzas
Step-by-step explanation:
20% u change it to 0.20
0.20 × 65 = 13
X^4=256
x^4-256=0
(x^2)^2-(16)^2=0
(x^2+16)(x^2-16)=0
either x^2+16=0
it gives complex roots.
or x^2-16=0
or x^2-4^2=0
(x+4)(x-4)=0
either x+4=0,x=-4
or x-4=0
x=4