Answer:
7/20
Step-by-step explanation:
Convert them so they have the same denominator.
1/4 + 1/10
A common denominator is 40 (I'm just choosing an easy one for now, rather than the smallest one)
1/4 * 10/10 = 10/40
1/10 * 4/4 = 4/40
10/40 + 4/40
Add the numerators
(10 +4)/40 = 14/40
Simplify the fraction
14/2 = 7 40/2 = 20
7/20
Answer:
<em>reciprocal</em><em> </em><em>of</em><em> </em><em>3</em><em> </em><em>is</em><em> </em><em>1</em><em>/</em><em>3</em><em>.</em><em>.</em>
24 markers for $1.20 has a unit price of 5c per marker. 36 markers for $1.79 has a unit price of 4.97c so brand b is better value.
The target with regions X and Y is shown on the added image.
The probability <span>that arrow hits the red region X is:
</span>
<span>
.</span>
The probability <span>that arrow hits the red region Y is:
</span>
<span>
.</span>
The formula is [ d° * π/180 = rad ]
d = degree
rad = radians
We are given 120°, so that is what we substitute for d.
d° * π/180 = rad
120° * π/180 = rad
2.0944rad
Best of Luck!