Answer:
5
Step-by-step explanation:
Answer:
(-∞ 2] ∪ [-4/3 ∞ )
Step-by-step explanation:
Given compound inequality,
![-9x+5\leq 17\text{ or }13x+25\leq -1](https://tex.z-dn.net/?f=-9x%2B5%5Cleq%2017%5Ctext%7B%20or%20%7D13x%2B25%5Cleq%20-1)
( Subtraction property of inequality )
( Division property of inequality )
![-x\leq \frac{4}{3}\text{ or }x\leq -2](https://tex.z-dn.net/?f=-x%5Cleq%20%5Cfrac%7B4%7D%7B3%7D%5Ctext%7B%20or%20%7Dx%5Cleq%20-2)
( a < b ⇒ - a > - b )
Hence, the solution of the given inequality is,
(-∞ -2] ∪ [-4/3 ∞ )
11 liters of 25% orange juice, 4 liters of 10% orange juice:
1' let x to be 25% orange juice and y be 10% orange juice
2' .25x+.10y=(15).21
3' x+y=15
4' 2.5x+y=31.5 divide all sides by 10
5' -x-y=-15 multiply all sides by -1
6' 1.5x=16.5
7' x=11
8' y=15-11=4
so 11 and 4 are the answers.
You use FOIL (first, outer, inner, last) to check your answer. Eg: (x-4)(x+3)then distribute by using FOIL to get 2 2
x +3x -4x -12 then simplify to get x -x -12
Answer:
$93.22
Step-by-step explanation:
bill = $79
tip = 18%
tip amount = tip % of bill
=18/100 * $79
=$1422/100
=$14.22
total cost = $79 + $14.22
=$93.22