Answer:
B
Step-by-step explanation:
The perimeter is the sum of the 3 sides of the triangle.
Sum the 3 sides and equate to 60, that is
2y + 1 + 3y + 5 + 7y = 60, that is
12y + 6 = 60 ( subtract 6 from both sides )
12y = 54 ( divide both sides by 12 )
y = 4.5
Thus
2y + 1 = 2(4.5) + 1 = 9 + 1 = 10 in
3y + 5 = 3(4.5) + 5 = 13.5 + 5 = 18.5 in
7y = 7(4.5) = 31.5 in
A card is drawn from a well shuffled deck of 52 cards
Probability of (drawing a card) =
Total number of cards = 52
Number of spade = 13
Number of heart = 13
Probability ( drawing a spade) =
Probability ( drawing a heart) =
probability of drawing a spade or a heart =
= =
The answer is the third option because in order to get x alone you divide by 5 so you divide 2y by 5 also to get 2y/5. Hope this helps!
Answer:
y= 5-8x
Step-by-step explanation:
See image below:)
To solve (8/5 + 4)7, you first have to add 8/5+4. But you cannot simply add the too because they have to be in a common denominator 'form'. To do that, we find a common denominator which is 5. We then multiply 4/1 by 5.
8/5 + 4/1= 8/5 +20/5.
Now you can solve; 8+20= 28. You leave the denominator as 5.
You get 28/5 and now you have to multiply it by 7/1. Another of saying 28/5 is 5 3/5. So 5 3/5 x 7/1= 39 2/10 (final answer)