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german
2 years ago
12

Last year, 120 students were sick at school. This year, 20% fewer students are sick. How many students are sick this year?

Mathematics
1 answer:
VMariaS [17]2 years ago
3 0
First find how many students are sick the second year:
0.20 × 120 = 24
Then all you need to do is subtract:
120 - 24 = 96
So the number of students that got sick this year is:
96 students
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4(x - 2) = -12, x = 4​
rewona [7]

Answer:

x= -1

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Step-by-step explanation:

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2 years ago
How many positive integers can be expressed ad a product of two or more of the prime numbers 5,7,11,and 13 if no one product is
sertanlavr [38]

Answer:

11 positive integers can be expressed.

Step-by-step explanation:

Consider the provided information.

The number of possible prime numbers are 5,7,11,and 13.

There are 4 possible prime numbers.

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The formula to calculate combinations is: ^nC_r=\frac{n!}{r!(n-r)!}

The number of ways are:

^4C_2+^4C_3+^4C_4=\frac{4!}{2!(4-2)!}+\frac{4!}{3!(4-3)!}+\frac{4!}{4!}

^4C_2+^4C_3+^4C_4=\frac{4!}{2!2!}+\frac{4!}{3!}+1

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Hence, 11 positive integers can be expressed.

8 0
3 years ago
Which graph represents a function
Nadya [2.5K]

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3 years ago
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Harman [31]
At break-even C = R so we have:-

20n + 134,000 = 160n

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Kims savings will be $60.

Step-by-step explanation:

120 * .50 = 60

7 0
3 years ago
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