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miskamm [114]
3 years ago
5

5) Ms Kelly originally was going to give a test with 20 questions on it. After talking with her team, she increased the number o

f questions on the test to 33. By what percent did the number of questions increase?
Mathematics
1 answer:
bija089 [108]3 years ago
3 0

Answer:

11.5

Step-by-step explanation:

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The product of two consecutive odd integers is 72. Write a quadratic equation to find the integers,
zimovet [89]

<u>Answer:</u>

x^2 + x - 72 = 0

<u>Explanation:</u>

We are given product of two consecutive odd integers is equal to 72.

Let one integer be x , then since these are consecutive and odd so the other integer will be equal to x + 1.  

Their product is equal to 72. So,

x * (x + 1) = 72

=> x^2 + x = 72

=>  x^2 + x - 72 = 0 is the required quadratic equation.

5 0
3 years ago
Find the area. Simplify your answer.<br> 3x+9<br> 2x
MariettaO [177]

Answer:

We know,

Area of triangle = 1/2 * b * h

= 1/2 * 2x * 3x

= 1/2 * 6x

= 3x

Step-by-step explanation:

8 0
3 years ago
PLEASE HELP ITS DUE BY MIDNIGHT I HAVE LIKE 30 MINS!!! The linear regression for this print-out relates the amount of oxygen in
dezoksy [38]

Answer:

Please check explanations

Step-by-step explanation:

Here, we want to interpret the meaning of the slope

The slope generally refers to the change in y values with corresponding change in x value

with respect to this question, we can see that the slope is negative

What this mean is that the rate of change in the level of oxygen measured in liters is decreasing with an increase in the time

This means that as more time elapses, more oxygen is used up leading to a decrease in the liters of oxygen present

7 0
3 years ago
Pleasee guyssss. I need to fill this space haha
Inga [223]

Answer:

Center: (-13,-2) Radius: 9

Step-by-step explanation:

because i know

5 0
3 years ago
Read 2 more answers
HELP! This needs to be answered ASAP!
andriy [413]

Answer:

it will take 4 hours( I'm not so sure)

Step-by-step explanation:

$25x $15

------- = ------------- + 75

1h. 1h

25x = 100

x =100/25

x = 4

8 0
3 years ago
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