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lidiya [134]
3 years ago
12

HELP PLEASE WILL GIVE BRAINLIST IF CORRECT

Mathematics
1 answer:
Nat2105 [25]3 years ago
4 0

Answer:

a.) First check on the height of the bar that ranges between 20 and 24 which is 6. The 6 is the number of students who bought 20 books or more, so get the percentage of those students who bought 20 or more books; divide 6 which is the number of students who bought 20 books or more with the total number of students which is 40 then multiply with 100.

% of students who bought 20 or more books = 6/40 ×100

=15

Step-by-step explanation:

b.) Find the area of a trapezium

= 1/2 × {a+b} × h

= 1/2 × {9 + 13} ×12

= 132

= 1/2 × {13 + 6} × 12

= 108

Mean no. of books bought = 132 + 108

= 240

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Marge cut 16 pieces of tape each at 3/8 inches long. How much tape did Marge<br> Cut!
photoshop1234 [79]

Answer:

she cut 6 inches of tape

Step-by-step explanation:

you can start by multiplying 3/8 and 6/1 which gives you 6


3 0
3 years ago
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A salad made such that the difference between twice the ounces of greens and the ounces of carrots is at least 3. Also, the sum
kap26 [50]

Answer:

3rd graph down

Step-by-step explanation:

greens are x and carrots are y in my equations

2x - y >= 3

x + 2y < 4

The first equation is solid and will highlight everything to the right of it because it is a >

the second is dashed and will highlight everything to the left of it because it is a <

the only 2 graphs that show this are 1 and 3

looking at the points you can see that the points for the solid line are both the same so ignore those and go to the dashed lined ones.

on the first graph the points are (0,4)

plugging those into our equation gives us 0 + 2*4 <4

or 8<4 which doesnt make sense making 3 the correct graph

(sorry my answer wasnt posting so i had to start over and make it less detailed, but comment if you need any explanation)

4 0
3 years ago
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Select the three ratios that are equuvalent to 3/5
Viefleur [7K]

Answer:

0.60 0.6 and .60 are all ratios hope this helps.

Step-by-step explanation:


4 0
3 years ago
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HELP!!!
Tom [10]

Answer:

x + (x + 2) = 30

Step-by-step explanation:

Number of Pennies = x

Number of Nickels = x + 2

Total = 30

x + (x +2) = 30

Hope it helps

8 0
2 years ago
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Stable cost reporting in a manufacturing setting is typically a sign that operations are running smoothly. The accounting depart
Mrac [35]

Answer:

Following are the responces to the given question:

Step-by-step explanation:

For this issue the statistical programme performance is:

Two overview hypothesis test sample variance:

\to \sigma_1^2  =Population variance 1

\to \sigma_2^2 = Population variance 2

\to \frac{\sigma_1^2}{\sigma_2^2}= Two variance ratios

\to H_0: \frac{\sigma_1^2}{\sigma_1^2}=1\\\\\to H_A: \frac{\sigma_1^2}{\sigma_1^2}\neq 1

Following are the result of the Hypothesis test: Ratio    \ \ \ \ \ \ \ \ \ \  Num.DF  \ \ \ \ \ \ \ \ \ \ Den.DF \ \ \ \ \ \ \ \ \ Sample\ \ Ratio\ \ \ \ \ \  F-Stat  \ \ \ \ \ \ \       P-value\\\\

\frac{\sigma_1^2}{\sigma_1^2}  \ \ \ \ \ \ \  \ \ \ \ \ \ \ \ \ \ \   15 \ \ \ \ \ \ \    \ \ \ \ \ \ \ \ \ \ \      15  \ \ \ \ \ \ \  \ \ \ \ \ \ \ \ \ \ \    2.3478261    \ \ \ \ \ \ \    \ \ \ \ \ \ \ \ \ \ \     2.3478261 \ \ \ \ \ \ \    \ \ \ \ \ \ \ \ \ \ \       0.1091

Test statistic = 2.3478 \approx 2.35

P-value > 0.10

The null hypothesis should not be rejected.

5 0
2 years ago
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