Answer:
[See Below]
Step-by-step explanation:
Here are some pictures to help you.
The inequality has to be pointing at 250 since that’s the maximum of money they can spend so B and D are out. If you did the math and solved it, the answer would be 7.5 and rounded up which is 8 hours.
1) a. 15% decrease
2) a. $79.20
3) b. 14.3% increase
4) a. $4.68
#1 explanation:
1435 - 1220 = 215
215/1435 = 0.1498
0.1498 x 100 = 14.98 = 15%
#2 explanation:
220 x 0.6 = 132
220-132=88
88 x 0.1 = 8.8
88-8.8 = 79.2 $
#3 explanation:
32-28=4
4/28=0.1428
0.1428 x 100 = 14.28 = 14.3%
#4 explanation:
275 x 0.15 = 41.25
275-41.25 = 233.75
233.75 x 0.02 = 4.675 = 4.68 $
7.5 inches
the scale factor =
= 3
hence height = 3 × 2.5 = 7.5 inches
The correct answer is the square root of 113.
To get the length of the missing side, you can use the pythagorean theorem. See attached pictures for reference. Pythagoran theorem states that the square of the hypotenues is equal to the sum of the squares of the other two sides of a right triangle.