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4 years ago

From the set {18, 23, 40}, use substitution to determine which value of x makes the equation true.

Mathematics

2 answers:

puteri [66]4 years ago

7 0

The answer is c. none of these

timama [110]4 years ago

5 0

Answer:

i have no idea

Step-by-step explanation:

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Which is a simplified form of the expression 2c + 2 + 6c – 4?

lilavasa [31]

2c+2+6c-4

=8c-2

Answer: B

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3 years ago

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What is 5/9 closets to

timurjin [86]

Answer:

10/18

Step-by-step explanation:

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3 years ago

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Imagine that you have entered the following distribution of scores into the program: 7, 9, 6, 3, 7, 8, 4, 10, 7, 9. The mean of

ozzi

Answer:

Step-by-step explanation:

Mean refers to the average value of the set of data.

It is the central value of the set of data.

Another word for Mean is average.

Given scores:7, 9, 6, 3, 7, 8, 4, 10, 7, 9

Solution:

Sum of observations = $7+ 9+ 6+ 3+ 7+ 8+ 4+ 10+ 7+ 9=70$

Number of observations = 10

Mean = Sum of observations/Number of observations = $\frac{70}{10}=7$

If observation 3 is removed:

Sum of observations = $7+ 9+ 6+ 7+ 8+ 4+ 10+ 7+ 9=67$

Number of observations = 9

Mean = Sum of observations/Number of observations = $\frac{67}{9}=7.44$

If observation 4 is removed:

Sum of observations = $7+ 9+ 6+ 3+ 7+ 8+ 10+ 7+ 9=66$

Number of observations = 9

Mean = $\frac{66}{9}=7.3$

If observation 6 is removed:

Sum of observations = $7+ 9+ 3+ 7+ 8+ 4+ 10+ 7+ 9=64$

Number of observations = 9

Mean = $\frac{64}{9}=7.1$

If observation 7 is removed:

Sum of observations = $9+ 6+ 3+ 8+ 4+ 10+ 9=49$

Number of observations = 7

Mean = $\frac{49}{7}=7$

If observation 8 is removed:

Sum of observations = $7+ 9+ 6+ 3+ 7+ 4+ 10+ 7+ 9=62$

Number of observations = 9

Mean = $\frac{62}{9}=6.9$

If observation 9 is removed:

Sum of observations = $7+ 6+ 3+ 7+ 8+ 4+ 10+ 7=52$

Number of observations = 8

Mean = $\frac{52}{8}=6.5$

If observation 10 is removed:

Sum of observations = $7+ 9+ 6+ 3+ 7+ 8+ 4+ 7+ 9=60$

Number of observations = 9

Mean = $\frac{60}{9}=6.7$

Therefore, mean of this distribution of scores would be changed the most if a score 3 was removed from the data set.

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4 years ago

An apartment building caretaker puts 0,75 L of chlorine into the swimming pool every day. If the chlorine is sold in containers

kaheart [24]

the question says,

the apartment caretaker puts 0.75L of chlorine into the swimming pool daily

the chlorine is sold in containers that holds 4L

so we should get the numbers of containers he should order in 120days.

first of all, lets get the total chlorine needed

total chlorine needed = the chlorine he pours daily X the number of days

total chlorine needed = 0.75 X 120 = 90L

to get the number of containers he should order

= 90/4

= 22.5

therefore the number of containers the he sholuld order in 120 days is 22 and half container.

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2 years ago

Evaluate 3w + 8 for w = 4

love history [14]

Answer:

12w +8

Step-by-step explanation:

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3 years ago

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