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podryga [215]
3 years ago
12

Two fifths of the senior class earned a grade of B+ or higher on an advanced mathematics exam. If 42 seniors scored at least a B

+, how many students are in the entire senior class?
Mathematics
2 answers:
Readme [11.4K]3 years ago
7 0

Answer: 105 students

Step-by-step explanation:

g100num [7]3 years ago
5 0

Answer:

Step-by-step explanation:

its is 105

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What is the side length of NO
Sladkaya [172]
Should be 24 cm, for side length of NO
6 0
3 years ago
On Thursday a local shop sold a combination of 417 hamburgers and cheese burgers. The number of cheeseburgers sold was two times
seropon [69]

Answer:

The number of hamburgers sold was 139 and the number of cheeseburgers  sold was 278.

Step-by-step explanation:

Let

x -----> the numbers of hamburgers sold on Thursday

y -----> the numbers of cheeseburgers sold on Thursday

we know that

x+y=417 ----> equation A

y=2x ----> equation B

Substitute the equation B in equation A and solve for x

x+2x=417

3x=417

x=139

Find the value of y

y=2(139)=278

therefore        

The number of hamburgers sold was 139 and the number of cheeseburgers  sold was 278.

8 0
3 years ago
The table shows the weekly income of 20 randomly selected full time students. If the
suter [353]

Answer: is that the full question?

Step-by-step explanation:

3 0
3 years ago
HELP PLEASE PLEASEJMSK
Kobotan [32]

Answer:

a) On <u>Friday</u> maximum number of students were absent while on <u>Saturday</u> minimum number of students were absent.

b) On Wednesday <u>135 students</u> were absent.

On Friday <u>150 students</u> were absent.

c) On <u>Monday</u> and <u>Thursday</u> same number of 130 students were absent.

7 0
3 years ago
Determine the numerical value of x ​
goldfiish [28.3K]

Answer:

x = 10

Step-by-step explanation:

OA = OD ( both radii of the circle )

OD = OB + BD = x + 16

OB is at right angles to OB ( line from centre to midpoint of chord is right )

Using Pythagoras' identity in right triangle ABO

OA² = OB² + AB² , that is

(x + 16)² = x² + 24²

x² + 32x + 256 = x² + 576 ( subtract x² from both sides )

32x + 256 = 576 ( subtract 256 from both sides )

32x = 320 ( divide both sides by 32 )

x = 10

8 0
3 years ago
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