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Zarrin [17]
3 years ago
5

In a class of 40 students, 15 offer physics, 20 offer history and 3 offer both physics and history. How many student offer neith

er physics nor history?​
Mathematics
2 answers:
solong [7]3 years ago
7 0

Answer:

3 athdwnts it says

Step-by-step explanation:

Ainat [17]3 years ago
5 0

Answer:

2 students.

Step-by-step explanation:

add together all of the students and then subtract that from 40.

20+15+3 = 38

40-38 = 2

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3 years ago
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Lyrx [107]

Answer:

Martina is 53 inches tall.

Step-by-step explanation:

In order to write an expression that relates the siblings heights we need to attribute variables to each brother. First we will call Martina's height as "m", then we can call her little brother's height as "b". The problem states that Martina's height is 3 inches less than twice the height of her brother so we have:

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4 0
2 years ago
What is 46+8-(4x15)+9
sergeinik [125]
535 would be your answer
3 0
3 years ago
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QUICK HELP!!!!
sasho [114]

Answer:

y =  \frac{3}{4} x -  \frac{3}{2}

Step-by-step explanation:

y =  \frac{3}{4} x - 1→y - y1 = m( x - x1)

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2y - 6 =  \frac{3}{2} x - 9

- 6 \: from \: both \: sides

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divede \: by \: 2 \: on \: both \: sides

y =  \frac{3}{4} x -  \frac{3}{2}

Hope this helps!

7 0
3 years ago
A cylindrical glass is 40% full of liquid. If the base of the glass has a radius of 5 inches and the height of the glass
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=

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2 years ago
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