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3 years ago

There are 28 students in math class. 22 of them passed the test. What percentage passed the test?

1 answer:

8 0

In order to solve this question, we need to set up a proportion. We are trying to solve for a percentage, so the proportion will be 22/28 = x/100, where x is the percentage that 22 is out of 28.

22 / 28 = x / 100
2200 = 28x Cross multiply
x = 78.6% Divide

22 is about 78.6% of 28. Remember that, whenever you need a percentage, just set up a proportion like this one.

Hope this helps!

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WHICH INEQUILITY IS EQUIVALENT TO X-4<9

frez [133]

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Answer: $\textsf{x} < \textsf{13}$

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Given: $\textsf{x - 4} < \textsf{9}$

Find: $\textsf{The simplified inequality}$

Solution: In order to simplify the inequality we can simply add 4 to both sides which would isolate x.

Add 4 to both sides

$\textsf{x - 4 + 4} < \textsf{9 + 4}$

$\textsf{x} < \textsf{9 + 4}$

$\textsf{x} < \textsf{13}$

Therefore, an inequality that would be equivalent to the one that was provided in the problem statement is x < 13.

5 0

1 year ago

Read 2 more answers

There is the picture of the problem i’m really having trouble with it could someone help me plz :)

blondinia [14]

Look at the attached picture ⤴

Hope it will help u...

✴Have a great day✴✴

6 0

2 years ago

Write the equation and solve

gulaghasi [49]

What is the X in the problem

6 0

3 years ago

How do I find the volume of this sphere while using 3.14

yawa3891 [41]

Vsphere=(4/3)pir³

d/2=r
d=6.2
6.2/2=r=3.1

vsphere=(4/3)pi3.1³
vsphere=(4/3)pi29.791
Vsphere=124.72498666666666666666666666667
answer is 124.72498666666666666666666666667 cubic feet
or rounded to neares whole, 125 square feet

7 0

2 years ago

Which of the following correctly isolates the constant for the polynomial: x2 – 12x + 27

Andru [333]

Answer:

x^2 - 12x = -27

Step-by-step explanation:

Here, we want to isolate the constant for the polynomial

To do this, we start by setting the expression to zero

Afterwards, we can bring the constant term over the equal to sign, giving a change in sign value

Mathematically, we have this as;

x^2 - 12x + 27 = 0

x^2 - 12x = -27

5 0

2 years ago