Answer:
it's 10
Step-by-step explanation:
i used pythagoras teorem
First, you have to multiply 50 boxes of ice cream by 12 bars to get the total number of ice cream bars. 50 x 12 = 600. That's how many bars of ice cream you had to begin with. Then, you take how many people had ice cream bars (520) and subtract it from the amount of bars you had to begin with. 600 - 520 = 80. You had 80 bars of ice cream left.
Answer:
y=4(2x-5)
Step-by-step explanation:
that's the expanded form.
Do others with yourself please, I think that's true
The speed of the current is 25 kilometers per hour.
<h3>What is the speed of the current?</h3>
According to the statement, Naira traveled first with the current and later against the current, both in the same amount of time. We assume that both the speed of the current and the speed of the vehicle are constant. Hence, the travel time can be expanded to the following expression:
s₁ / (v + v') = s₂ / (v - v')
Where:
- s₁ - Distance traveled with the current, in kilometers.
- s₂ - Distance traveled against the current, in kilometers.
- v - Speed of the current, in kilometers per hour.
- v' - Speed of the vehicle relative to the current, in kilometers per hour.
If we know that s₁ = 4.5 km, s₂ = 3 km, v' = 5 km /h, then the speed of the current is:
4.5 / (v + 5) = 3 / (v - 5)
4.5 · (v - 5) = 3 · (v + 5)
4.5 · v - 22.5 = 3 · v + 15
1.5 · v = 37.5
v = 25
The speed of the current is 25 kilometers per hour.
To learn more on relative speeds: brainly.com/question/14362959
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