Answer:
16
Step-by-step explanation:
5y=6x+16...(I) and 9x=7y-20....(ii)
Using substitution method:
Multiply equation ii by 5
45x=35y-100
Substitute (I) into ii
45x=7 * 5y - 20
45x=7(6x+16)
45x=42x+112
45x-42x=112
3x=112......…….......
5y=6x+16
5y=2*3x+16
5y=2*112+16
5y=224+16
5y=240
Divide both sides by 5
y=48
3x-2y
112-2*48
112-96
16
Answer:
i need to know this too im christopher lol
Step-by-step explanation:
j
Answer:
D) 70 m²
Step-by-step explanation:
1. Find the base and height:
Since, for each grid, the side length is 2 meters, we multiply the lengths by 2 meters: <em>9 - 2 = 7 -> 7*2 m = 14 m</em>; <em>7 - 2 = 5 -> 5*2 m = 10 m</em>
2. Find the area:
Use the equation: 1/2*b*h ->
1/2 * 14 m * 10 m = 140/2 m² = 70 m².
176:20
44:5 - Lowest Terms
176 and 20 are both divisible by 4; their common denominator is 4.