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grandymaker [24]
3 years ago
15

1. On the last 5 quizzes, Marco has earned a total of 21 out of 25 possible points. If he has a perfect

Mathematics
1 answer:
Nonamiya [84]3 years ago
3 0

The number of points Marco needs to bring his average up to 90% is 15points.

If there's a possible 25 possible points, and Marco has taken 5 quizzes;

Evidently, each quiz has weighs 5 points.

Mathematically;

\frac{21 + 5x}{5(5 + x)}  \times 100\% =  \frac{90}{100}

  • 2100 + 500x = 2250 + 450x

  • 50x = 150

x = 3.

Therefore, he needs 5x points = 15 points to bring his average up to 90%.

Read more:

https://brainly.in/question/24249798

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6 0
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sergiy2304 [10]

Answer:

The value of k will be -4      

Step-by-step explanation:

We have given polynomial P(X)=x^3+kx^2+x+6

It is given that x+1 is factor of the polynomial

And we have to find the value of k

As x+1 is the factor of polynomial  so x+1 = 0 that is x = -1 will be the root of polynomial

So if we put x = -1 in the polynomial then the p(-1) will be zero

So 0=(-1)^3+k(-1)^2-1+6

k=-4

So the value of k will be -4

4 0
3 years ago
A cerise box has a height of 32 centimeters. It has a base with an area of 160 square centimeters. What is the volume, in cubic
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Answer:

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Step-by-step explanation:

Volume = Base area × height

Base area = 160 cm²

Height = 32 cm

Vol. = 160 × 32

= 5,120 cm³

7 0
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Would i add both of the coordinate numbers in this case?
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8 0
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Given ΔRWS ≅ ΔTUV, find the values of x and y. <br><br> x = ___<br><br> y = ___
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Step-by-step explanation:

3 0
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