Answer:
see below
Step-by-step explanation:
12.5x − 10.2 = 3(2.5x + 4.2) - 6
Use the distributive property to distribute the 3
12.5x − 10.2 = 7.5x + 12.6 − 6
Combine like terms
12.5x − 10.2 = 7.5x + 6.6
Add 10.2 to each side of the equation by using the addition property of equality
12.5x = 7.5x + 16.8
Subtraction 7.5x from each side of the equation by using the subtraction property of equality
5x = 16.8
Divide by 5 on each side by using the division property of equality
x = 3.36
Cost of each Hamburger = $3
Cost of 90 Hamburgers = 3×90
= $270
Therefore cost of 90 hamburgers is $270
Must click thanks and mark brainliest
Answer:
CE = 12
Step-by-step explanation:
The triangles are similar triangle because they have base angles that are congruent (transversals of parallel lines) and their third angles are equal because they form vertical angles.
Since the triangles are similar, their side lengths are proportional to each other. Set up a proportion...
5/10 = x/8 (side with length of 5 corresponds to side with length of 10)
Now solve for x by cross multiplying
40 = 10x
4 = x
*They want the entire length of CE, so 8 + 4 = 12
Estimate the other 11 times on a clock that you can represent as opposite rays
The probability that neither of the sample of 2 is good is:
![P(none\ good)=\frac{14C2}{20C2}=0.479](https://tex.z-dn.net/?f=P%28none%5C%20good%29%3D%5Cfrac%7B14C2%7D%7B20C2%7D%3D0.479)
The probability that at least one is good is:
P(at least one is good) = 1 - 0.479 = 0.521