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matrenka [14]
3 years ago
6

Edgar earns $12 per hour at his job during his weekdays. His hourly earning increased by 50% when he works during weekends. Edga

r worked 20 hours this week on weekdays. What is minimum whole number of hours Edgar will have to work during this weekend in order to earn at least $400 this week?
SAT
2 answers:
Tomtit [17]3 years ago
7 0
Answer:
He worked for 10 more hours
Explanation:
20*12= 240
400-240= 160
16x=160 (x being the number of hours)
x=10 hours
kramer3 years ago
4 0

Answer:

so he would have to work at least 7 hours

Explanation:

20*12=240

400-240=160

160/24=6.666

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Given that scientists ensure that their results are reliable.

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3 years ago
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Which of the following is a technique to improve internal validity
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<h3>What is internal validity?</h3>

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it should be noted that  Internal validity also helps to eliminate alternative explanations , hence, The technique to improve internal validity is D) Addition of a control group.

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COMPLETE QUESTOIN:

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Sophie [7]

Answer:

LOL

Explanation:

3 0
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