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lidiya [134]
3 years ago
8

At the beginning of the quarter there were 40 students in our class. At the final exam, there are only 32 students left. By what

percent did the class size decrease? by 96​
Mathematics
2 answers:
barxatty [35]3 years ago
8 0

Answer:

20 % decrease

Step-by-step explanation:

First find the number of students that left

40 -32 = 8

Take the number of students that left and divide by the original number of students

8/40

1/5

.20

20%

20 % decrease

Igoryamba3 years ago
4 0

Answer:

20% decrease ._.

Step-by-step explanation:

If u could subscribe to my friend penny_pg3d on YT, that would be great :)

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The boys wrestling team scored a total of 36 points. Pins are worth 6 points. Major
shtirl [24]

Answer:

6p + 4d = 36

Step-by-step explanation:

If p = number of pins and d = number of major decisions, then the equation is 6p + 4d = 36.

Hope this helps!

5 0
3 years ago
AC=(5x+12) and BD =8x? Can somebody help me to slove it
AleksAgata [21]
To solve this equation from the information given above, I ordered it 5x+12=8x. To solve, I subtracted 5x from each side, canceling the 5x to your left, leaving only the number 12. 8x minus 5x equals 3x. Take 3x and divide on both sides. 3x/3x cancels the 3, leaving 12/3 equals 4. Finally, x equals 4.
3 0
3 years ago
A student's pay of $18 an hour is $4 more than twice the amount the student earns per hour at an internship. Enter and solve an
Natasha2012 [34]
1. You have that a<span> student's pay of $18 an hour </span>is <span>$4 more than twice the amount the student earns per hour at an internship.

 2. So, let's call the </span><span>hourly pay of the internship: "x". Then, you have:
</span><span>
 18=2x+4

 3. When you clear the variable "x", you obtain:

 18-4=2x
 14=2x
 x=14/2
 x=$7

 Therefore, the answer is: T</span><span>he hourly pay of the internship is $7.</span>
4 0
3 years ago
Solve using the quadratic formula: 2x2-9x+12=0
marta [7]

Answer:

no solution

Step-by-step explanation:

For getting the nature of solution of the quadratic equation of the form:

ax² + bx + c = 0

We need to find Discriminant which is:

Discriminant (D) = b² - 4ac

  • If D < 0, there is no solution of equation.
  • If D = 0, there are two equal and real solution of equation
  • If D < 0, there are two real and distinct solution of equation

Here we have equation is:

2x² - 9x + 12 = 0

∴ a=2, b = -9, c = 12

⇒ D = 81 - 4 × 2 × 12 = -16 < 0

Hence, there is no solution of given equation.

5 0
3 years ago
If jim gets 100 dollars per month and martha gets 150 how much more would they get in 15 years??
Allushta [10]

Answer:

Jim would get 1500, Martha gets 2250

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
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