Answer:
11
Step-by-step explanation:
5x+15+20=90
5x+35=90
-35 from both sides
5x=55
divide both sides by 5
x=11
Answer:
-4.01, -4, -7
Step-by-step explanation:
equation:
-x + 6 ≥ 10
substitute each number for x
- (-3.9) + 6 ≥ 10 = (negatives cancel each other out) 3.9 + 6 = 9.9 ≥ 10 (incorrect)
-4 + 6 ≥ 10 = 2 ≥ 10 (incorrect)
- (-4.01) + 6 ≥ 10 = (negatives cancel each other out) 10.01 ≥ 10 (correct)
- (-4) + 6 ≥ 10 = (negatives cancel each other out) 10 ≥ 10 (correct)
-4.01 + 6 ≥ = 1.99 ≥ 10 (incorrect)
-3.9 + 6 ≥ 10 = 2.1 ≥ 10 (incorrect)
-0 + 6 ≥ 10 = 6 ≥ 10 (incorrect)
- (-7) + 6 ≥ 10 = (negatives cancel each other out) 11 ≥ 10 (correct)
First third and last answer
Answer:
80/7776
Step-by-step explanation:
(1/2)^5 = 1/32
(-2/3)^4 = 16/81
(3/5)^-1 = 5/3
now
1/32 × 16/81 × 5/3
Here is your answer:
There are two ways you can solve this equation:
1. You could round each decimal then divide:
16.8 --> 17 & 4.96 --> 5
"17 ÷ 5 = 3.4"
2. You could just divide:
"16.8 ÷ 4.96 = 3.38"
(Remember depending on the way you have to solve it would determine your answer.)
Hope this helps!
