If y = kx, what is the value of k if y = 20 and x = 0.4? A) 5 B) 8 C) 9.6 D) 50
1 answer:
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Answer:
1) 11
2) 2
3)
4)
5) -2
6)
Step-by-step explanation:
1) 2 + 3
-
=(2 × 2 )+ (3 × 4
) - 5
= 4 + 12
- 5
= 11
2) 4 -2
+
= (4 × 2) - (2 × 7
) + 8
= 8 - 14
+8
= 2
3) 5 - 3
= 5× - 3×
+ 4×
+ 2×
=
=
4)
=
=
5)
=
= -2
6)
=
= 2× - 2×
-
=
=
Hope the working out is clear and will help you. :)
Answer: See attached table
Step-by-step explanation:
+---+---+---+
| 1 | 8 | 2 |
+---+---+---+
| 6 | 4 | 2 |
+---+---+---+
| 5 | 0 | 7 |
+---+---+---+
<u>Proofs:</u>
First row: 1+6+5 = 12
Second row: 8+4+0 = 12
Third row: 2+2+7 = 12
First column: 1+8+2 = 12
Second column: 6+4+2 = 12
Third column: 5+0+7 = 12
Diagonal starting from top left to bottom right: 1+4+7 = 12
Diagonal staring from top right to bottom left: 2+4+5 = 12