So we have to put the value of 1:3 in a ratio
1 : 3
= 3:y
Ask yourself what do I have to multiply one by to get three ( the answer is three)
Because one side is multiplied by three, you have to multiply the right hand side by three to get y
3*3 is 9
Therefore, the y for 3 hours is 9
Then, we have to make another ratio
1:3
= 5:x
Ask yourself what do I have to multiply by one to get five (the answer is five)
So you multiply the other side by five as well
3*5=15
Therefore, the y for five hours is 15
Answer:
Sydney is 52 years old, and Tristan is 30.
Step-by-step explanation:
Represent Tristan's age by t and Sydney's by s.
Then s - 8 = 2(t - 8), and t = s - 22
Substituting s - 22 in the first equation, we get:
s - 8 = 2(s - 22 - 8), or
s - 8 = 2s - 60
Solving for s: -2s + s = -60 + 8, or -s = -52.
Sydney is 52 years old, and Tristan is 30.
Answer:
C
Step-by-step explanation:
Hope it helps you.......
(-79.54) / (-9.7) = <span>8.2
Steps:
</span>
<span><span>Conversion: 79.54 = <span>7954/100</span> = <span>3977/50
</span></span><span>Unary minus: -79.54 = -<span>3977/50</span></span><span>
Conversion: 9.7 = <span>97/10</span></span><span>
Unary minus: -9.7 = -<span>97/10
</span></span><span>Divide: -<span>3977/50</span> / (-<span>9710</span>) = <span>-397750</span> · <span>10-97</span> = <span>-3977 · (-10)50 · 97</span> = <span>397704850</span> = <span>415
</span>To divide one fraction by another, invert (turn upside-down) the second fraction, then multiply.
</span></span>
Answer:
y = -1
Step-by-step explanation:
