20 adults and 50 kids.
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Ax+By=C [Use the standard form of a linear equation]
x+y=C so, x+(C-x)=C [also use this formula]
.
$5.50x+$4.00y=$310 [plug-in the values]
Since x+(C-y)=C, than x+y=70 or x+(70-x)=70
.
5.50x+4.00(70-x)=310 [substitute (70-x) for y and simplify]
5.50x+280-4x=310
5.50-4=310-280 [solve for x]
1.5x=30
x=20 adults
and
y=(70-x)=70-20=50 kids under 12.
Answer: 6
Step-by-step explanation: DE is 4+2 so EF would be the same if it is equal.
Area of a triangle equals 1/2 base times height, or 1/2bh. So it would be 5.4 times 2, equaling 10.8. Then multiply it by 1/2, which would divide it by 2, resulting in 5.4 again. Just make sure to get your units right.
Answer:
C. Yes, you can prove that x = 12
Step-by-step explanation:
My friend is correct because by the HL Congruence Theorem, ∆MNP is congruent to ∆MKL. The hypotenuse and leg of one right ∆ is congruent to the hypotenuse and corresponding leg of the other right ∆. So, enough information was given to prove that x = 12.
Answer:
Step-by-step explanation:
First, we convert:
- ounces to cups
- weeks to hours
Result of conversion:
- 91 fluid ounces = 11.375 cups (1 cup = 8 ounces)
- 2.5 weeks = 420 hours (1 week = 168 hours)
To get the rate, we must divide the number of cups by number of hours
11.375 cups / 420 hours = 0.027 cups per hour = 0.03 cups per hour (approximated)
Hope that helps!
