<h3>
Answer: 127</h3>
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Explanation:
The phrasing "2/3 of 4/5 of his 2nd exam on his 3rd test" is a bit clunky in my opinion. It seems more complicated than it has to be.
The student got 80 on the second exam. 4/5 of this is (4/5)*80 = 0.8*80 = 64. Then we take 2/3 of this to get (2/3)*64 = 42.667 approximately. If we assume only whole number scores are given, then this would round to 43.
Let x be the score on the fourth exam. Since 5 points of extra credit are given, the student actually got x+5 points on this exam.
So we have these scores
- first exam = 70
- second exam = 80
- third exam = 43
- fourth exam = x+5
Adding up these scores and dividing by 4 will get us the average
(sum of scores)/(number of scores) = average
(70+80+43+x+5)/4 = 80
(x+198)/4 = 80
x+198 = 4*80
x+198 = 320
x = 320 - 198
x = 122
So the student got a score of x+5 = 122+5 = 127 on the fourth exam.
Answer: the answer is C
Step-by-step explanation:
Answer:
cone,258
Step-by-step explanation:
i got it right
Answer:
float numAcres(int squareFeet){
float nA;
nA = (float)squareFeet/43560;
return nA;
}
Step-by-step explanation:
One acre of land is equivalent to 43,560 square feet.
So in x square feet, we are going to have x/43560 acres of land.
I am going to write a C program for you
float numAcres(int squareFeet){
float nA;
nA = (float)squareFeet/43560;
return nA;
}
Answer:
k = -2/3
Step-by-step explanation:
y = kx
plug in the x,y values
2 = k(-3)
divude both sides by-3
-2/3 = k
k = -2/3
