noor261259 noor261259

24-06-2021
Mathematics

contestada

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

how can i solve it which method or way should I use class=

Respuesta :

24-06-2021

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).

Answer Link

Otras preguntas

Which sentence best avoids bias?

[tex] \sqrt] a3 - b3[/tex]what is answer

Find the discriminant and the number of real roots for this equation. x^2 + 2x + 8 = 0 A. -28; no real roots B. 32; one real root C. 32; two real roots D.-28; o

Solving equations: (a) 5x - 9 = 3x + 3 (b) x + 6 = 34 - x

Below are two parallel lines with a third line intersecting them

Solve the system algebraically. 2x + y - 10 = 0 x-y-5=0 What is the value of y? -5/3 5

You are interested in the relationship between leisure activities and mood. One group of participants watches at least 2 hours of television/movies per day and

What is the slope of the line? − 3 x + 5 y = 2 x + 3 y

3x=1/81 what is the value of x?

What was a major difference between Deng Xiaoping's and Mao Zedong's policies as the leaders of the People's Republic of China? A. Deng Xiaoping banned all for