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Serjik [45]
3 years ago
5

Please guys help to solve this problem​

Mathematics
2 answers:
liq [111]3 years ago
6 0

9514 1404 393

Answer:

  300

Step-by-step explanation:

Since nobody failed, the number who passed one or the other was 100%.

  P(O + W) = P(O) +P(W) -P(O&W)

  100% = 80% +70% -P(O&W)

  P(O&W) = 50% = 150 students

If 150 students are 50% of the examinees, then 100% will be 300 students.

zhuklara [117]3 years ago
3 0

Answer:

<h2>300</h2>

hope it helps

<h3>#<em><u>CARRYONLEARNING</u></em></h3>
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975 and is increasing at a rate of 2.5% per year for 7 years
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975 + 170.62

= 1145.62

8 0
3 years ago
A 5-lb bag of apples costs $4.50, and an 8-lb bag of the same type of apples costs $7.52. Greg found the unit price, which is th
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3 years ago
Which expression is equivalent to -3(4x-0.50)?<br> PLEASEEEEEEEEEEEEE HELPPP
Misha Larkins [42]

Final Answer: -12x + 1.5

Steps/Reasons/Explanation:

Question: Which expression is equivalent to -3(4x - 0.50)?

<u>Step 1</u>: Expand by distributing terms.

-3 × 4x - 3 × -0.50

<u>Step 2</u>: Simplify -3 × 4x to -12x.

-12x - 3 × -0.50

<u>Step 3</u>: Simplify 3 × -0.50 to -1.5.

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<u>Step 4</u>: Remove parentheses and add.

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6 0
3 years ago
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Answer:  D.  y = -4x + 4

Step-by-step explanation:

Notice that the y-intercept is when x is zero and the x intercept is when y is 0.

and to write in the equation in slope intercept form , you will need the slope and the intercept.

We will use the y and x intercepts to find the slope, by find the difference in their y coordinates and dividing it by the difference in their x coordinates.

y intercept: ( 0,4)  

x intercept: (1,0)

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x coordinates difference:  0 - 1 = - 1  

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Since the slope is -4 and the the y intercept is 4 , the equation will be

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7 0
3 years ago
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