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Katarina [22]
2 years ago
14

If there are 5 boys and 7 girls, write the ratio of girls to total students

Mathematics
1 answer:
Marizza181 [45]2 years ago
3 0

Answer:

7:12

Step-by-step explanation:

boys=5

girls=7

total=boys+girls

12=5+7

girls:total

7:12

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When stating the null and alternative hypotheses, the hypotheses are: Select one: a. Always about the statistic only b. Always a
Nata [24]

Answer:

D. Always about the parameter only

Step-by-step explanation: A Null Hypothesis is a hypothesis used in statistics to show that there is no variation among the variables of interest. A Null Hypothesis also can be said to be giving a proposal that there is not significant difference between the observed data.

An alternative hypothesis is a hypothesis in statistics given contrary to the Null Hypothesis,a Null hypothesis can also be seen in statistics as stating that something is happening among the data.

3 0
3 years ago
Mr. Smith paid $36.36 for a carpet. This amount includes a tax of 10%. What was the cost of the carpet before tax?
ser-zykov [4K]

Answer:

32.72

Step-by-step explanation:

36.36/100

0.3636

0.3636 times 90 (I use 90 because 100-10=90) 10% tax, so 90% original cost.

32.72

8 0
3 years ago
3. Find the value of x that makes a||b. 9x - 44 6x + 10 b A. 18 B. 14.4 15 C. 911 15 D. 6​
bazaltina [42]
Answer is A. 18

EXPLANATION-

Its Simplifying
(9x + -44) = (6x + 10)

Reorder the terms:
(-44 + 9x) = (6x + 10)

Remove parenthesis around (-44 + 9x)
-44 + 9x = (6x + 10)

Reorder the terms:
-44 + 9x = (10 + 6x)

Remove parenthesis around (10 + 6x)
-44 + 9x = 10 + 6x

Solving
-44 + 9x = 10 + 6x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-6x' to each side of the equation.
-44 + 9x + -6x = 10 + 6x + -6x

Combine like terms: 9x + -6x = 3x
-44 + 3x = 10 + 6x + -6x

Combine like terms: 6x + -6x = 0
-44 + 3x = 10 + 0
-44 + 3x = 10

Add '44' to each side of the equation.
-44 + 44 + 3x = 10 + 44

Combine like terms: -44 + 44 = 0
0 + 3x = 10 + 44
3x = 10 + 44

Combine like terms: 10 + 44 = 54
3x = 54

Divide each side by '3'.
x = 18

Simplifying
x = 18
7 0
2 years ago
A marketing firm is considering making up to three new hires. Given its specific needs, the management feels that there is a 45%
Fiesta28 [93]

Answer:

Probability of making atleast one hire is 0.94

Step-by-step explanation:

Given data:

Assuming X as random variable

P(X \geq 2) = 45\%

P(X \geq 0 ) = 6\%

P(X \geq = 3) = 11\%

Probability of making atleast one hire

P(X \geq a) =1 - P(X < a)

then

P(X \geq 1 ) = 1 - P(X < 1)

                   = 1 - P(X = 0)

                    = 1 - 0.06

                    =0.94          

3 0
3 years ago
What size picture will result when a 5 inch x 7 inch picture is reduced using a 80% setting
wariber [46]
5x7 is 35 and 10% of 35 is 3.5x2 is 7. So 35-7 is 28. The answer is 28.
5 0
3 years ago
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