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spayn [35]
3 years ago
5

A boy sits for 15 maths exams during the year and gains an average of 1.". He sits for one

Mathematics
1 answer:
Jobisdone [24]3 years ago
6 0

New average

=  \frac{1 + 65}{2}

=  \frac{66}{2}

= 33

Therefore, the boy's new average is 33%

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9.54
damaskus [11]

Answer:

9.5

Step-by-step explanation:

7 0
2 years ago
What is the simplified form of the expression -2(-5x - 8)?
Deffense [45]

Answer: 10x+16

Step-by-step explanation:

Use the distributive property a(b+c)= ab+ac

so

-2(-5x-8) = (-2 * -5x) - (-2* -8)

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10x-(-16)

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Hope this helped!

3 0
3 years ago
Simplify. (-6x^2 + 2y - 1) + (2x^2-5y + 3) A) -4x^2 + 3y -2 B) -4x^2 - 3y - 2 C) -4x^2 + 3y +2 D) -4x^2 -3y +2
Rasek [7]

Combine like terms

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I hope that's help !


4 0
3 years ago
What is the area of this parallelogram? the perimeter is 19
Assoli18 [71]

Answer:

its 22 <3

Step-by-step explanation:

a=bh

(area = base x height)

base = 5.5

height = 4

5.5 x 4 = 22 :)

6 0
3 years ago
7x-9x what is the answer
Oksanka [162]

Answer:

-2x

Step-by-step explanation:

The expression itself is -2x. We subtract the coefficients 7 and 9 to get -2.

7 0
3 years ago
Read 2 more answers
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