25. 3y+15
26. 15k+20
27. 21n+7p
28. 60w+20x
Also, you got number 19, number 21, and number 24 wrong.
D+D+D+D+D = 5D, not D⁵
S+S+S = 3S, not S³
N+N+N+N = 4N, not N⁴
Remember, repeated addition, (n+n+n) is 3n. Repeated multiplication, (n•n•n) is n³.
Hope this helps.
Answer:
z = - 24
Step-by-step explanation:
Given
- 0.4(0.5z + 4) = 3.2 ( divide both sides by the multiplier - 0.4 )
0.5z + 4 = - 8 ( subtract 4 from both sides )
0.5z = - 12 ( divide both sides by 0.5 )
z = - 24
To find 50% or half, of 31, you can just add 31 + 31.
Or, 31 x 2.
Or even the longer way, we know 3 + 3 = 6. So we can just add 0's: 30 + 30 = 60. That leaves us with the 1's. 1 + 1 = 2.
Take our 60 from earlier, and add 2. 60 + 2 = 62.
Check your answer. 62/2 = 31.
Your answer is 62
Answer:
C. <em>X</em> is not blue.
Step-by-step explanation:
Hi there!
We're given that if <em>X</em> is blue, then <em>Y</em> is gold, but <em>Y</em> is not gold.
Therefore, there is no way that <em>X</em> is blue, because if it was, then <em>Y</em> <em>would</em> be gold. But it's not, so <em>X</em> is not blue.
I hope this helps!
