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Andrej [43]
2 years ago
12

The data shows the survey results of 75 randomly selected students.

Mathematics
1 answer:
Kryger [21]2 years ago
3 0

Answer:

D

Step-by-step explanation:

The answer is d

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Solve for x: 3√5x² +25x-10√√5 = 0
bogdanovich [222]

Answer:  x = - 2√5, √5/3

Step-by-step explantion

3 √ 5 x 2 + 25 x − 10 √ 5 = 0 35x2+25x−105=0

⇒ 3√5x2 + 30x – 5x – 10√5 = 0  

⇒ 3√5x(x + 2√5) – 5(x + 2√5) = 0  

⇒ (x + 2√5)(3√5x – 5) = 0

x = - 2√5, √5/3

3 0
1 year ago
Read 2 more answers
Marcus is planning a budget. He plans to spend less than 25% of his allowance each week on entertainment. Last week Marcus spent
g100num [7]
Marcus went above his budget as 25% percent of his allowance would be $5, and he went $2.42 over.

4 0
3 years ago
When the value of x doubles does the value of y double
nalin [4]
No. If only the variable, "x" doubles, then the variable, "y" would not double, UNLESS it says that if BOTH variables double.
6 0
3 years ago
Two adults and 9 students cost $50 to attend
rjkz [21]

Answer:

The cost of tickets for a play is $3.00 for adults and $2.00 for children. 350 tickets were sold and $950 was collected. How many tickets of each type were sold?

Let x = number of $3 tickets

Let y = number of $2 tickets

Total = quantity × value

Step-by-step explanation:

x + y = 350                    (equation 1)

3x + 2y = 950                 (equation 2)

Use Substitution Method

Isolate variable x in equation 1

x = 350 – y                     (equation 3)

Substitute equation 3 into equation 2

3(350 – y) + 2y = 950

1050 – 3y + 2y = 950

3y – 2y = 1050 – 950

y = 100

Substitute y = 100 into equation 1

x + 100 = 350

x = 250

Answer: 250 $3 tickets and 100 $2 tickets were sold.

5 0
3 years ago
A regular bottle of sunscreen contains 12oz of lotion. The family sized bottle contains 20% more. Joe buys 4 family sized bottle
Aleksandr-060686 [28]
To check, we can solve how much sunscreen is in a family sized bottle first. We need to find what is 20% of 12. First, turn 20% into a decimal: 20%/100= 0.2. Now, multiply 0.2 by 12, which is 2.4. Then, you add this to 12 because it is 20% more. 12+2.4= 14.4. Multiply this by 4: 14.4*4=57.6. Since his number is close to 50, he is kinda correct, but a much more reasonable answer would be closer to 60. Hope this helped!
4 0
3 years ago
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