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TiliK225 [7]
3 years ago
7

Mrs. Crosby has tablets for 3/4 of her class. How many students will have tablets if Mrs. Crosby's class has an attendance count

of 28? need answer asap and explain plz
Mathematics
2 answers:
ella [17]3 years ago
7 0

Answer:

21 tablets.

Step-by-step explanation:

28/4=7. 7*3=21.

<em>Hope this helped.</em>

<em />

Dennis_Churaev [7]3 years ago
7 0

Answer:

21 tablets

Step-by-step explanation:

Do 28/4 which will be 7 tablets per 1/4 of the class, so since she only has enough for 3/4 of the class you need to do 7 tablets times 3 which makes 21 tablets for 3/4 of her class.

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Answer ASAP:
Irina-Kira [14]

Answer:

To order fractions from least to greatest, start by finding the lowest common denominator for all of the fractions. Next, convert each of the fractions by dividing the lowest common denominator by the denominator and then multiplying the top and bottom of the fraction by your answer.

Step-by-step explanation:

Hope this helps ❤️

5 0
3 years ago
Find the standard equation of the parabola that satisfies the given conditions. Also, find the length of the latus rectum of eac
lakkis [162]

Answer:

The standard parabola

                                y² = -18 x +27

Length of Latus rectum = 4 a = 18

                         

Step-by-step explanation:

<u><em>Explanation:-</em></u>

Given focus : (-3 ,0) ,directrix  : x=6

Let P(x₁ , y₁) be the point on parabola

PM perpendicular to the the directrix L

                          SP² = PM²

                (x₁ +3)²+(y₁-0)²  = (\frac{x_{1}-6 }{\sqrt{1} } )^{2}

              x₁²+6 x₁ +9 + y₁² = x₁²-12 x₁ +36

                          y₁² = -18 x₁ +36 -9

                           y₁² = -18 x₁ +27

The standard parabola

                                y² = -18 x +27

    Length of Latus rectum = 4 a = 4 (18/4) = 18

                         

5 0
3 years ago
URGENT!!! SOMEONE HELP
Klio2033 [76]

Answer:78% countries

Step-by-step explanation:

5 0
3 years ago
The time (X) to complete a standardized exam is approximately normal with a mean of 70 minutes and standard deviation of 10 minu
notka56 [123]

Answer:

77.88 minutes

Step-by-step explanation:

Given that :

Mean (m) = 70

Standard deviation (s) = 10

For 80% of student to complete the exam. In the given time

Using the formula :

Zscore = (X - mean) / standard deviation

80th percentile = 80/100 = 0.8 has a Zscore = 0.7881

0.7881 = (X - 70) /10

0.7881 * 10 = X - 70

7.881 = X - 70

7.881 + 70 = X

77.881 = X

Hence, 77.88 minutes should be given

5 0
3 years ago
Using the equation y=76(1.013)x the table shown represents the population of the U.S. for each of the four years following 1900.
Lyrx [107]
I’ll say about 45 because one year hurt but my bones hurt one time and they did not like it
7 0
3 years ago
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