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PolarNik [594]
3 years ago
7

A teacher gave a test with 50 questions, each worth the same number of points. Donovan got 39 out of 50 questions right. Marci's

score was 90%.
 

How many more questions did Marci answer correctly?
 

PLEAse help
Mathematics
1 answer:
Murljashka [212]3 years ago
6 0
So Marci's sore was 45 because every percent has to be out of 100 so to get it to 50 you divide by two so 90 / 2 = 45. And 45-39 = 6 

Marci got 6 more correct then Donovan. 
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Please help! Find the equation of the line and I will mark as brainliest IF answer is right. <3
Hoochie [10]
<h3>Answer:  y = (3/4)x + 13/4</h3>

This is the same as writing y = 0.75x + 3.25

slope is 3/4 = 0.75

y intercept is 13/4 = 3.25

==========================================================

Explanation:

One marked point on this line is (-3,1)

Another point is at (1,4)

Let's find the slope of the line through these two points.

m = (y2-y1)/(x2-x1)

m = (4-1)/(1-(-3))

m = (4-1)/(1+3)

m = 3/4

m = 0.75

Now let's use point slope form to find the equation of the line

y - y1 = m(x - x1)

y - 1 = 0.75(x - (-3))

y - 1 = 0.75(x + 3)

y - 1 = 0.75x + 2.25

y = 0.75x + 2.25 + 1

y = 0.75x + 3.25

If you wanted, you can convert those decimal values to fraction form

  • 0.75 = 75/100 = 3/4
  • 3.25 = 325/100 = 13/4

That means the equation

y = 0.75x + 3.25

is the same as

y = (3/4)x + 13/4

4 0
2 years ago
If x / 3 equals 6 then x equals
sleet_krkn [62]

Answer: X = 18

Step-by-step explanation:

Crossmultiply

8 0
3 years ago
Find the arrival time if the plane took off at 8:35 A.M. and flew for 2 hr. 55 min. Include A.M. or P.M. in your answer.
FrozenT [24]
11:30 am. 8:35 + 2 hours = 10:35 + 5 mins = 10:40 + 50 mins = 11:30 am
3 0
3 years ago
A bookstore orders 200 books the books are packaged in the black boxes that holds 24
Mama L [17]
I believe 9. I divided 200 books among 24 boxes and got 8.3333..., so that means there would be 8 full boxes plus 1 not full boxes which means that there are 9 boxes total.
6 0
3 years ago
Read 2 more answers
ezekiel has $250 in his bank account he deposts $35 from his birthday and then buys clothes for school for $75
Semmy [17]

Answer:

$140

Step-by-step explanation:

i assume ur asking for how much is left over

250-35= 215

215-75= 140

$140 left

6 0
3 years ago
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