A positive number that is doubled and increased by 10 has a solution of 84. What is the positive number?
What is 37
200
4b - 2 = 6
What is b = 2
200
3(2x + 9) = 57
What is x = 5
200
The perimeter of an isosceles triangle is 16 inches. If the length of its base is 5.8 inches, find the length of the other two sides.
What is 5.1 inches
300
-18 = 3k - 6
What is k = -4
300
8h - 5 = 11h - 14
What is h = 3
300
Frank is bored and opens up his book to do some math. The two consecutive pages he opens up to have a sum of 149. What is the higher page number?
What is 75
400
5/2y + 8 = 18
What is y = 4
400
b - 2.8 = 0.8b + 1.2
What is b= 20
400
Katniss has x amount of arrows to start. Before sunset she is attacked, and fires half of her arrows. She finds 12 while sneaking through an abandoned camp, and she now has 18 remaining. How many arrows did she start with?
What is 12
500
0.8w - 1.6 = -8
What is w = -8
500
3/4(16x - 24) = 126
What is x = 12
500
A rectangle has a perimeter of 180 inches. The length of the rectangle is 4 times longer than the width of the rectangle. Find the width of the rectangle. (hint: draw a picture)