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Luden [163]
3 years ago
5

Ralph is 3 times as old as Sara. In 6 years, Ralph will be only twice as old as Sara will be then. Find Ralph's age now. Ralph's

age is _____. 6 12 18 24
Mathematics
1 answer:
Marizza181 [45]3 years ago
5 0

The correct answer is 18.

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For 0° ≤ x < 360°, what are the solutions to sin(StartFraction x Over 2 EndFraction) + cos(x) – 1 = 0 ?
nataly862011 [7]

Answer:

{60°,300°}

b.

Step-by-step explanation:

edge 2020

6 0
3 years ago
I don’t understand how to find the dimension,<br> Need help :c
slava [35]

Width = W

Length = 2 times the width plus 3 feet = 2W + 3

Area of triangle A = L * W

A = W (2W + 3)

20 = 2W^2 + 3W

2W^2 + 3W - 20 = 0

(W + 4) (2W - 5) = 0

W + 4 = 0; W = - 4 (width cannot be negative, excluded)

2W - 5 = 0

2W = 5

W = 2.5

L = 2W + 3 = 2(2.5) + 3 = 8

Answer:

Width = 2.5 feet and Length = 8 feet

Hope it helps.

8 0
2 years ago
4x -5 = 2(2x +1)<br> I need help
Nostrana [21]

Answer:

No Solution

Step-by-step explanation:

4x-5=2\left(2x+1\right)

Expand:

4x-5=2* \:2x+2* \:1

4x-5=4x+2

Add 5 to both sides:

4x-5+5=4x+2+5

4x=4x+7

Subtract 4x from both sides:

4x-4x=4x+7-4x

0=7

No solution as this is false.

4 0
3 years ago
Read 2 more answers
A card is picked up at random from a pack of 52 cards. Find the probability that it is a king or queen.
zalisa [80]
Total number of cards = 52
Total number of kings or queens = 8

P(King or Queen) = 8/52 = 2/13

------------------------------------------------------------
Answer: The probability is 2/13.
------------------------------------------------------------
3 0
3 years ago
Find the LCM of 200 and 240.
natka813 [3]

Answer:1,200

Step-by-step explanation:

6 0
3 years ago
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