I can’t see the picture☹️☹️☹️
11) 2x+6y-3; x=5,y=4
the question is asking to evaluate for y when x=5 and evaluate for x when y=4,
2x+6y-3
2x+6y=3
2(5)+6y=3
10+6y=3
6y=3-10
y=-7/6 when x=5
2x+6(4)=3
2x+24=3
2x=3-24
x=-21/2 when y=4
12)
Input Output
N 4(n+3)
12 4(12+3) = 4(15)=60
14 4(14+3)=4(17)=68
18 4(18+3)=4(21)=84
25 4(25+3)=4(28)=112
13)8x+y-10; x=4, y=50
8x+y=10
8(4)+y=10
32+y=10
y=10-32
y=-22 when x=4
8x+50=10
8x=10-50
8x=-40
x=-40/8
×=-5/1=-5 when y=50
14) b is correct
15)c is correct
16) c is correct
If you need explanations on these questions, message me.
Answer:
b = 30
Step-by-step explanation:
1/4 (8b-80) +b = 70
2b - 20 + b = 70
3b = 90
b = 30
Answer:
46 is the answer.
Step-by-step explanation:
12/(2) + 10(2)(4)/2
= 12/(2) + 80/2
= 6 + 40
= 46
Answer:
10w+15
Step-by-step explanation:
-6w+6w+10w=10w
6+9=15
hope this helps. Happy Holidays
