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3 years ago

I am really confused with this question.

Mathematics

2 answers:

klemol [59]3 years ago

7 0

It would be A or B
but not D,C

harkovskaia [24]3 years ago

4 0

I think it's the second one

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Coach Ellis surveyed a sample of students about their favorite sport. The circle graph below shows

CaHeK987 [17]

Answer:

C. 120 students

Step-by-step explanation:

10 + 15 + 20 +30 = 75%

100 - 75 = 25%

25% chose football which is 100 students

30% chose swimming

setup proportion:

25/100 = 30/x

25x = 100(30)

25x = 3000

x = 120

4 0

3 years ago

A triangular sail has a base length of 2.5 meters.The area of the sail is 3.75 square meters.How tall is the sail?

love history [14]

Area of a triangle = 1/2 x base x height

--------------------------------------
Find Height :
--------------------------------------
3.75 = 1/2 x 2.5 x height

3.75 = 1.25 x height

height = 3.75 ÷ 1.25

height = 3 meters

----------------------------------------------------------------------------
Answer: The height is 3 meters.
----------------------------------------------------------------------------

7 0

3 years ago

Escribe el número que tenga el mismo valor que 28 decenas

adoni [48]

Answer:

280

Step-by-step explanation:

<u><em>The question in English is</em></u>

Write the number that has the same value as 28 tens

we know that

One tens is equal to the number 10

To find out the value of 28 tens, multiply the number 28 by 10

$28(10)=280$

6 0

3 years ago

On a finance exam, 15 accounting majors had an average grade of 90. On the same exam, 7 marketing majors averaged 85, and 10 fin

lilavasa [31]

Answer:

89.84375

Step-by-step explanation:

Given that on a finance exam, 15 accounting majors had an average grade of 90. On the same exam, 7 marketing majors averaged 85, and 10 finance majors averaged 93.

To find weighted mean.

Here weights can be considered as number of majors in each subject

$Marks x 90 85 93\\Weights 15 7 10\\Product 1350 595 930\\$