2/3 would be converted to 4/6 by multiplying the numerator and denominator by 2.
then you can add 4/6 + 1/6 to get 5/6
11b + 8 - 9b + 3 =
= 11b - 9b + 8 + 3 = 2b + 11
Answer:
25
Step-by-step explanation:
i think you mean +10x
but (x+a)^2 = x^2 + 2ax + a^2
2ax = 10x
ax = 5x
a = 5
so (x+5)^2 = x^2+10x+25
Jajsjamsbhsus
Hope this helps
Her grade on a fourth test is 75.
The average of e for the four tests is 84.
By substituting the given data in the equation, we get
Let the fourth test marks be x
83 + 90 + 88 + x / 4 = 84
261 + x / 4 = 84
261 + x = 336
x = 336 - 261
x = 75
An average may be described as the sum of all numbers divided by means of the whole quantity of values.
A mean can be defined as an average of the set of values in a sample of data. In different words, a median is also called the mathematics mean.
Learn more about mean here: brainly.com/question/20118982
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