So, we know this:
<span> 5x+10y = 800
and we also know that the number of larger vehicles was 50.
So we can substitute:
</span>
<span>5x+10y = 800
</span>
<span>5x+10*50 = 800
and calculate:
</span><span>5x+500 = 800
and now subtract 500 from both sides:
5x=300
and divide by 5:
x=60.
and this is our answer: there were 60 smaller vehicles washed!
</span>
Answer:
Step-by-step explanation:
1kg=1000g
2kg=2000g
275/2000=11/80g
I answered this on the other one
Center is (3, -4) and radius is 1
Step-by-step explanation:
- Step 1: Find center and radius of the circle with equation x² + y² - 6x - 8y + 24 = 0
The standard form of the equation of a circle is x² + y² + 2gx +2fy + c = 0, where center is (-g, -f) and radius = √g² + f² - c
By comparing the 2 equations, 2g = -6, 2f = 8 and c = 24
⇒ g = -6/2 = -3
⇒ f = 8/2 = 4
⇒ c = 24
Center = (-g. -f) = (3, -4)
Radius = √g² + f² - c = √3² + (-4)² - 24
= √9 + 16 - 24 = √1 = 1