If Y +Y + 40 = 180 in an isosceles triangle so Y =?
Answer:
b) 70
Step-by-step explanation:
Y + Y + 40 = 180
2y + 40 = 180
2y = 180 - 40
2y = 140
y = 140/2
y = <u>7</u><u>0</u>
So, the value of Y is 70 (b)
#CMIIW ^^
Answer:
89.
Step-by-step explanation:
We have been given that after taking 7 quizzes, your average is 77 out of 100. We are asked to find what average score be on the next five quizzes to increase your average to 82.
The total of 12 quizzes to get 82 would be
.
The total scores earned by you in previous 7 quizzes are 
The total scores you need to earn on next 5 quizzes would be difference of scores in 12 quizzes and total scores in 7 quizzes as:

Now, we will divide total scores on coming 5 quizzes by 5 to find the average as:


Therefore, your average score on the next five quizzes should be 89 to increase your average to 82.
Hi message me because this picture won’t show
Answer:
, 
Step-by-step explanation:
How much longer did he study for his math test?



An equation for this would resemble this:

Now before we get into any equation solving let's get the <em>denominators </em>equal to each other. we can do this by <em>multiplying </em>the <em><u>numerator</u></em> and <u><em>denominator</em></u><em> </em>by 2. 
Now we can solve the equation:

, as a mixed number
<em>plz mark me brainliest. :0</em>
Answer:
Option D
Step-by-step explanation:
Verify each quadratic equation
case A) we have
This quadratic equation has a leading coefficient of 1
Substitute the value of x=3 and x=-2 in the equation
For x=3
----> is not true
therefore
x=3 is not a solution of the quadratic equation
case B) we have
This quadratic equation has a leading coefficient of 1
Substitute the value of x=3 and x=-2 in the equation
For x=3
----> is not true
therefore
x=3 is not a solution of the quadratic equation
case C) we have
This quadratic equation has a leading coefficient of 1
Substitute the value of x=3 and x=-2 in the equation
For x=3
----> is not true
therefore
x=3 is not a solution of the quadratic equation
case D) we have
This quadratic equation has a leading coefficient of 1
Substitute the value of x=3 and x=-2 in the equation
For x=3
----> is true
therefore
x=3 is a solution of the quadratic equation
For x=-2
----> is true
therefore
x=-2 is a solution of the quadratic equation