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lions [1.4K]
2 years ago
14

The scores on a test are normally distributed with a mean of 210 and a standard deviation of 20. What is the score that is 1 dev

iation (SD) above the mean?
Mathematics
1 answer:
telo118 [61]2 years ago
8 0

Answer:The score above the mean is 50 percent.

Step-by-step explanation:

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X + 5y = 10<br> 4x + 20y = 2
m_a_m_a [10]

Answer:

(x+5y=10)4

(4x+20y=2)

4x+20=40

4x+20y=2

y=38

x+5y=10

x+5(38)=10

x+190=10

x=10-190

x=-180

4 0
2 years ago
Please help !!!!!!!!!!!!!
Illusion [34]

Answer:

1) x= sqrt 98 = 7 sqrt 2

Step-by-step explanation:

7 0
3 years ago
What is the difference between gcf and lcm
Zarrin [17]
Greatest common factor=gcf
least common multule=lcm
with 12 and 16
factors of 12=2 times 2 times 3
factors of 16=2 times 2 times 2 times 2
greates common factor is 2 times 2=4
least common multiule means all factors combined minus repeats or 2 times 2 times 2 times 2 times 3=48
8 0
3 years ago
Read 2 more answers
The drama club is selling tickets to their play to raise money for the show's expenses.
Romashka [77]

Answer:

25

Step-by-step explanation:

Ticket sale (student) = $8

Ticket sale (adult) = $13

The hall can contain 70 people.

Number of adult tickets sold = 41

Cost of show = $730

Let the number of student ticket sold = x

Setting an algebraic equation to show represent the cost of the show and set minimum target of ticket to be sold.

730 = (41 * 13) + (x * 8)

730 = 533 + 8x

8x = 730 - 533

8x = 197

X = 197 / 8

x = 24.6 = 25

The minimum number of student tickets to be sold is 25

8 0
3 years ago
Write and solve a proportion to complete the statement. Round your answer to the nearest hundredth.
mezya [45]

Answer:

40.82 kg

Step-by-step explanation:

40.8233 and round it

5 0
3 years ago
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