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3 years ago

How can i solve it which method or way should I use ............. ..

Mathematics

1 answer:

ad-work [718]3 years ago

8 0

Aliaa got a mark of 60 in her first 4 tests, so her total mark is 60 x 4 = 240. On her fifth test, she got a mark of 80.
So her average is:
(240+80)/5 = 320/5 = 64
Her avg is 64 (c).

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In the diagram below QRS=NMP what is length in inches of MP

Veronika [31]

Mp is congruent to rs

7 0

3 years ago

Serjik [45]

Step-by-step explanation:

$= \frac{ \frac{3}{x - 2} - 5 }{2 - \frac{4}{x - 2} }$

$= \frac{ \frac{3 - 5.(x - 2)}{x - 2} }{ \frac{2.(x - 2) - 4}{x - 2} }$

$= \frac{ \frac{3 - 5.(x - 2)}{ \cancel{x - 2}} }{ \frac{2.(x - 2) - 4}{ \cancel{x - 2} }}$

$= \frac{3 - 5.(x - 2)}{2.(x - 2) - 4}$

$= \frac{3 - 5x + 10}{2x - 4 - 4}$

$= \frac{ - 5x + 13}{2x - 8}$

$= \frac{13 - 5x}{2x - 8}$

The answer is D.

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2 years ago

Suppose that P(A) = 0.25 and P(B) = 0.40 . If P(A|B)=0.20 , what is P(B|A) ?

Ket [755]

Answer:

0.32

Step-by-step explanation:

<u>Use of formula:</u>

P(A and B) = P(A)*P(B|A) and
P(A and B) = P(B)*P(A|B)

<u>According to above and based on given:</u>

P(A)P(B|A) = P(B)P(A|B)
P(B|A) = P(A|B)*P(B)/P(A)
P(B|A) = 0.20*0.40/0.25 = 0.32

8 0

3 years ago

Inequality: a checking-account balance is no more than $500

matrenka [14]

x≤ 7 is the answer I could find hope it helps

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3 years ago

Solve -3y + 12 = -48

fenix001 [56]

Answer:

-3y +12 = -48

-3y = -60

y = -60/-3

y = 20

Step-by-step explanation:

7 0

3 years ago

How can i solve it which method or way should I use ............. ..​

How can i solve it which method or way should I use ............. ..