Can somebody plz help answer all them correctly thanks!
1 answer:
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Answer:
-7
Step-by-step explanation:
The numerical coefficient of is - 7.
1) In this problem, the first thing to do is to enlist the categories:
workers time to clean # apartments
8 2h15 12
8 9 x
2) Note that the number of cleaners is the same. So, we can pick the ratios that fall under the category <em>time </em>and <em>#apartments</em>
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We need to convert that 2h 15 into decimal form before setting the ratios:
3) Now, we can set the ratios and solve for x:
Thus, the answer is 48
Answer:
21) x = 0
23) x = 7
Step-by-step explanation:
In a parallelogram, the opposite sides are congruent. Using this fact, we can create equations for both problems.
21)
Subtract 18.
Divide by 2.
23)
Add 3.
Divide by 2.