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3 years ago

Physics or Chemistry. In a group of 50 students, 7 take all three

Mathematics

1 answer:

astraxan [27]3 years ago

8 0

Answer:

Step-by-step explanation:

There are 50 students in a group.

Using Venn diagram, we have 50=x+8+7+5+x+9+(x+3)50=x+8+7+5+x+9+(x+3) .

50=3x+3250=3x+32

3x=183x=18

x=6x=6

The number of students that take Maths is x+8+7+5=26x+8+7+5=26 .

Answer: x=6x=6 ; 2626 students take Maths.

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Mrs.Scott decides that she would spend no more then $120 to buy a jacket and a shirt. If the price of the jacket was $20 more th

Leona [35]

Highest possible value of shirt = $25

Step-by-step explanation:

DATA:

Total amount to be spent = $120

Price of shirt = x

Price of jacket = 20 + 3x

To find the price of the shirt,

Step 1: Find the value of x

Price of shirt + price of jacket = Total amount to be spent

x + 20 + 3x <= 120

4x + 20 <= 120

4x <= 100

x <= $\frac{100}{4}$

x <= 25

Step 2: Find the value of the shirt by substituting the value of x

Price of shirt = x

Price of shirt = $25

Price of Jacket = 20 + 3x

Price of Jacket = 20 + 3(25)

Price of Jacket = 20 + 75

Price of Jacket = $95

Therefore, the highest possible price of the shirt is $25.

Keywords: price

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