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PIT_PIT [208]
3 years ago
15

A teacher wanted to prevent students from guessing answers on a multiple-choice test. The teacher graded 5 points for a correct

answer, 0 points for no answer, and -2 points for a wrong answer. Michelle answered 17 questions correctly, left 3 blank, and had 5 wrong answers. She also got 8 out of 10 possible points for extra credit. What was her final score?
Mathematics
2 answers:
Leona [35]3 years ago
7 0

Answer:

<h2>Hello </h2>

Step-by-step explanation:

  • His Total score will be 85
  • As he had answered 17 questions correctly and the point for correct answer is 5 .
  • so add 5 seventeen times and you'll get 85
  • He left three answers blank we won't add these points
  • As he had five wrong answers the teacher won't add these points
<h2>So, the total score is 85 </h2>

<h3>#hope</h3>
ZanzabumX [31]3 years ago
5 0

Answer:

While slavery was the major issue separating the North and South, it was not slavery itself that sparked the conflict. The South wanted to secede from the Union, and the North refused. While President Abraham Lincoln personally opposed slavery, he recognized that it was legal under the U.S. Constitution at the time. He also recognized that few in the North were ready to go to war to free the slaves. For Lincoln and the northern majority, preservation of the Union was the foremost goal.

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The first step when dividing 9m2 − 4m − 6 by 3m is shown. Which could be the next step? 3m − − 3m − − 3m − − 3m − −
Agata [3.3K]

Given:

Consider the below picture attached with this question.

The given expression is:

\dfrac{9m^2}{3m}-\dfrac{4m}{3m}-\dfrac{6}{3m}

To find:

The next step.

Solution:

We have,

\dfrac{9m^2}{3m}-\dfrac{4m}{3m}-\dfrac{6}{3m}

Cancel out the common factors.

=3m-\dfrac{4}{3}-\dfrac{2}{m}

Therefore, the correct option is D.

8 0
3 years ago
Molly bought 12.5 yards of fabric for 4.50 dollars a yard to make dog beds.she uses2.5 yards of fabric for each dog bed.she sell
Mekhanik [1.2K]
12.5 yds at 4.50 per yd : 12.5 * 4.50 = 56.25....what she paid for the fabric

she uses 2.5 yds of fabric for each dog bed.....12.5 / 2.5 = 5...so she can make 5 dog beds

each dog bed sells for 17.50.....5 * 17.50 = 87.50

87.50 (what she earned from selling the dog beds) - 56.25 (the cost of the fabric) = 31.25......so her total profit is $ 31.25 <==
8 0
3 years ago
6279÷4= could you help me with this problem
Feliz [49]

Answer:  1,569.75

Step-by-step explanation:

6279÷4=1,569.75

:)

7 0
3 years ago
Investment of $2000 at 10% simple interest for 9 years
Oliga [24]

Answer:

The last investment (C) has the least interest of $600

The other two investments (A and B) have the <u>same</u> amount of interest of $1800.

Step-by-step explanation:

<u>Simple Interest Formula</u>

I = Prt

where:

  • I = interest earned
  • P = principal
  • r = interest rate (in decimal form)
  • t = time (in years)

<u>Investment A</u>

  • P = $2000
  • r = 10% = 0.1
  • t = 9 years

Substitute the given values into the formula and solve for I:

⇒ I = 2000(0.1)(9)

⇒ I = $1800

<u>Investment B</u>

  • P = $3000
  • r = 3% = 0.03
  • t = 20 years

Substitute the given values into the formula and solve for I:

⇒ I = 3000(0.03)(20)

⇒ I = $1800

<u>Investment C</u>

  • P = $2000
  • r = 10% = 0.1
  • t = 3 years

Substitute the given values into the formula and solve for I:

⇒ I = 2000(0.1)(3)

⇒ I = $600

The last investment (C) has the least interest of $600.

The other two investments (A and B) have the <u>same</u> amount of interest of $1800.

8 0
1 year ago
What is the solution to the equation 3(2x+5)=3x+4x<br> A.x=0<br> B.x=4<br> C.x=5<br> D.x=15
Ivan

x=15 and i have to write some more for 20 letters

6 0
3 years ago
Read 2 more answers
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