Answer:
5 months
Step-by-step explanation:
Given
![c = 30m + 50](https://tex.z-dn.net/?f=c%20%3D%2030m%20%2B%2050)
![c = 20m + 100](https://tex.z-dn.net/?f=c%20%3D%2020m%20%2B%20100)
Required [Missing from the question]
At what month will the cost be equal
To do this, we equate both expressions
![c = c](https://tex.z-dn.net/?f=c%20%3D%20c)
This gives:
![30m + 50 = 20m + 100](https://tex.z-dn.net/?f=30m%20%2B%2050%20%3D%2020m%20%2B%20100)
Collect like terms
![30m - 20m = 100 - 50](https://tex.z-dn.net/?f=30m%20-%2020m%20%3D%20100%20-%2050)
![10m = 50\\](https://tex.z-dn.net/?f=10m%20%3D%2050%5C%5C)
Solve for m
![m = \frac{50}{10}](https://tex.z-dn.net/?f=m%20%3D%20%5Cfrac%7B50%7D%7B10%7D)
![m = 5](https://tex.z-dn.net/?f=m%20%3D%205)
Answer:
1,3,5,6
Step-by-step explanation:
search index fossil
Answer: 3/8x
To find the least common denominator first convert all integers and mixed numbers (mixed fractions) into fractions. Then find the lowest common multiple of the denominators. This number is same as the least common denominator .You can then write each term as an equivalent fraction with the same LCD denominator.
Looks like 49 and w complete the 77 angle
77-49 = w
W= 28
Answer:
A. <ECF and <BCF
Step-by-step explanation:
Complementary angles are angles that add up to give 90°
m<BCE = m<BCA = 90° (right angles)
m<ECF + m<BCF = m<BCA
m<ECF + m<BCF = 90° (Substitution)
Therefore, <ECF and <BCF are complementary angles.