Answer: 23
Step-by-step explanation: -3(8.5)=25.5. 25.5+2.5=23
9514 1404 393
Answer:
48
Step-by-step explanation:
Let d represent the number of sweets Dora has to start with. Then 2d is the number Harini had. After they each ate 18, the ratio of their numbers is ...
(2d -18)/(d -18) = 5/1
2d -18 = 5(d -18) . . . . . multiply by d-18
72 = 3d . . . . . . . . . . subtract 2d-90
24 = d . . . . . . . . . divide by 3
2d = 48
Harini started with 48 sweets.
Answer:
Answer = C
Step-by-step explanation:
When solving a two-step equation, you will always need to undo the addition and subtraction first.
Answer:
Q11. 20x=120° (vert opp angles)
x=120÷20
=10
Q12. x+68°=60° (vert opp angles)
x=60-68
=-8
Q13. 80°+x+106°=180° (int angles, u//v)
x+186°=180°
x=180-186
=-6
Q14. 6x+8°=50°
6x=50°-8°
=42°
x=42÷6
=7
Answer:
Cricket match toss and playing cards
Step-by-step explanation:
Example 1: Cricket match toss
<em>There are two teams in a cricket match. Each team's captain comes forward for the toss. There are 2 sides of the coin; head an tail. Each captain has an equal chance of either getting a head or a tail.</em>
Total number = 2
Chances of head/tail = 1
Therefore the probability for each captain of either getting a head or a tail is 1/2.
Example 2: Playing cards
<em>A deck of cards has 52 cards. There are total 26 black cards and 26 red cards out of which there are 13 clubs, 13 spades, 13 hearts and 13 diamonds. Each category has a King, Queen, Jack, Ace, 2, 3, 4, 5, 6, 7, 8, 9 and 10 card.</em>
Total number of cards: 52
Total number of 10 of spades: 1
The probability of getting a 10 of spades will be 1/52.
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