Answer:
225 square cm
Step-by-step explanation:
Answer:
x=7
Step-by-step explanation:
8x-5x=3x
7+14=21
3x=21
3/21=7
x=7
Answer:
10/13 ≤ x < 18/13
Step-by-step explanation:
-1 ≤ 13x - 11 < 7
If a ≤ u < b then a ≤ u and u < b
⇒ -1 ≤ 13x - 11 and 13x - 11 < 7
-1 ≤ 13x - 11
Add 11 to both sides: 10 ≤ 13x
Divide both sides by 13: 10/13 ≤ x
13x - 11 < 7
Add 11 to both sides: 13x < 18
Divide both sides by 13: x < 18/13
Combine the intervals
10/13 ≤ x < 18/13
40 is <span> a multiple of 4 that is greater than 30 but less than 100.</span>
