Answer:
11/8 and if you need percentage its about 61%
Step-by-step explanation:
1. find the LCD of 3 and 4 (12). so now your fractions are 5 4/12 and 3 9/12 perimeter is 2l + 2w so 2 (5 4/12) + 2( 3 9/12) = 10 4/12 + 7 6/12 = 17 10/12 or 17 5/6. this is reasonable because that the average perimeter of a sandbox.
2. LCD again is 12, so the fractions are 5 10/12 and 2 1/12. turn those into mixed fractions and get 70/12 and 25/12. 45/12 or 3 3/4. So she babysits 3 3/4 hours during the week.
3. The LCD for this is 8. now the fractions are 2/8 and 1 7/8 or 15/8. add 15/8 and 2/8 to get 17/8 or 2 1/8. He is using a total of 2 1/8 cups of flour.
4. 0.2
5. 0.054
6. 0.024
Answer:
They would weight
ounces
Step-by-step explanation:
Weight of complete package of paper =
ounces
Weight of complete package of paper =
ounces
Edward put
packages of paper on a scale
So, Weight of
packages 
Weight of
packages 
Weight of
packages =
Hence They would weight
ounces
Answer:
(x - 6)² = 18
Step-by-step explanation:
(x - 6)² = 18
x² - 12x + 36 = 18
x² - 12x + 18
7a + 10 = 2a subtract 2a from both sides
-2a -2a
5a + 10 = 0 subtract 10 from both sides
-10 -10
5a = -10 then divide both sides by 5
/5 /5
a = - 2