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4vir4ik [10]
3 years ago
9

What are the possible values of x if (4x – 5)2 = 49?

Mathematics
1 answer:
STatiana [176]3 years ago
3 0
2(4x - 5) = 49
8x - 10 = 49
8x - 10 + 10 = 49 + 10
8x = 59
8x/8 = 59/8
x = 7.375
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There are 600 performers in a dance recital. The ratio of men to women is 4:6. How many men performers were in the dance recital
posledela

Answer: 240 men

Step-by-step explanation:

From the question, we are informed that there were 600 performers in a dance recital and that the ratio of men to women is 4:6.

Fraction of men at the recital = 4/10

Fraction of women at the recital = 6/10

The number of men performers that were in the dance recital will be:

= 4/10 × 600

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There were 240 men at the recital.

5 0
3 years ago
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Answer:

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3 years ago
Tammy conducted a survey to find the favorite subject of the students at her school. She asked 25 students from her math class w
almond37 [142]
Tammy's sample may not be considered valid because, on the first hand, it is said that she only asked students from her " Math Class". 
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Illustrating her survey through statistics may be more reliable and valid because it shows frequencies in which she can calculate easily and accurately the percentage of  the number of students per subject, in a more objective manner.
7 0
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Lilit [14]

Answer:

Step-by-step explanation:

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2 years ago
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Nataly_w [17]

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