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denis-greek [22]
3 years ago
6

In a classroom, 5/8 of the students are wearing blue shirts, and 1/4 are wearing white shirts. There are 36 students in the clas

s.How many students are wearing a shirt other than a blue or white?
Mathematics
2 answers:
Serhud [2]3 years ago
6 0

Answer:

5 students

Step-by-step explanation:

1/4 x 2 = 2/8

2/8 + 5/8 = 7/8

36 students/ 8= 4.5 students

you divide by 8 because you only have one eighth left

dexar [7]3 years ago
3 0

Answer:

the answer would be 4.5 but there cant be a half a student so im kind of confused on that

Step-by-step explanation:


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The physical plant at the main campus of a large state university recieves daily requests to replace fluorescent lightbulbs. The
faltersainse [42]

Answer:

34%

Step-by-step explanation:

Given that the distribution of daily light bulb request replacement is approximately bell shaped with ;

Mean , μ = 45 ; standard deviation, σ = 3

Using the empirical formula where ;

68% of the distribution is within 1 standard deviation from the mean ;

95% of the distribution is within 2 standard deviation from the mean

Lightbulb replacement numbering between ;

42 and 45

Number of standard deviations from the mean /

Z = (x - μ) / σ

(x - μ) / σ < Z < (x - μ) / σ

(42 - 45) / 3 = -1

This lies between - 1 standard deviation a d the mean :

Hence, the approximate percentage is : 68% / 2 = 34%

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3 years ago
Tanya spent $8.15 on 5 cans of tuna. She used a coupon that gave her 35 cents off each can. What was the price of a can of tuna
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she spent 1.98 ..............

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2 years ago
Solve this equation for x: 2x^2 + 12x - 7 = 0
zhannawk [14.2K]

Answer:

x=0.5355 or x=-6.5355

First step is to: Isolate the constant term by adding 7 to both sides

Step-by-step explanation:

We want to solve this equation: 2x^2 + 12x - 7 = 0

On observation, the trinomial is not factorizable so we use the Completing the square method.

Step 1: Isolate the constant term by adding 7 to both sides

2x^2 + 12x - 7+7 = 0+7\\2x^2 + 12x=7

Step 2: Divide the equation all through by the coefficient of x^2 which is 2.

x^2 + 6x=\frac{7}{2}

Step 3: Divide the coefficient of x by 2, square it and add it to both sides.

Coefficient of x=6

Divided by 2=3

Square of 3=3^2

Therefore, we have:

x^2 + 6x+3^2=\frac{7}{2}+3^2

Step 4: Write the Left Hand side in the form (x+k)^2

(x+3)^2=\frac{7}{2}+3^2\\(x+3)^2=12.5\\

Step 5: Take the square root of both sides and solve for x

x+3=\pm\sqrt{12.5}\\x=-3\pm \sqrt{12.5}\\x=-3+ \sqrt{12.5}, $ or $x= -3- \sqrt{12.5}\\$x=0.5355 or x=-6.5355

6 0
2 years ago
Can someone please help me ASAP (Radical expressions)
natka813 [3]

Answer:

5 sqrt(6)

Step-by-step explanation:

sqrt(150)

We know that sqrt(ab) = sqrt(a) sqrt(b)

sqrt(25) sqrt(6)

5 sqrt(6)

8 0
2 years ago
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Find the measure of angle Y for the kite showing below.
Dovator [93]
It should be 117.5 because in a kite, the angles all add up to 360, and since the remaining unknown angles are the same, you just subtract 38+87 from 360 and divide by 2
4 0
2 years ago
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