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umka21 [38]
3 years ago
7

mark takes a 40 question test for which he receives 2.5 for each correct answer and losses 1 point for each wrong answer. If mar

k answers all the questions and gets a grade of 65% of the test, what percent of the questions did he answer correctly?
Mathematics
2 answers:
goldfiish [28.3K]3 years ago
6 0

Answer:

he answered 26% correctly

Step-by-step explanation:

vovikov84 [41]3 years ago
5 0

Answer:

75%

Step-by-step explanation:

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A ​used-boat dealership buys a boat for ​$2800 and then sells it for ​$4000. What is the percent​ increase?
Rudik [331]

Answer:

Step-by-step explanation:

percent increase = increase divided by original number x 100

                           

increase is the difference between the two numbers...

new number - original number.....4000 - 2800 = 1200

percent increase = (1200 / 2800) x 100

                            = 0.42857 (round to .4286) x 100

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3 years ago
Help !!!!!!!!!!! me part 2 question read 1 then read 2 I andswer one need help with 2
sergiy2304 [10]

Answer:

The volume of a cylinder is given by πr²h where, r is the radius of the cylinder and h is the height of the cylinder. Also r=d/2 , where d is the diameter of the cylinder. Therefore the volume becomes one-fourth of the initial volume. ... The new volume is 730 mL.

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3 years ago
Answer please !<br> both questions 7 and 8
Elodia [21]

Answer:

7) p=80

8)z= 19.2

Step-by-step explanation:

7th problem)

0.1p=8

p * 10^{-1}=8

\frac{p}{10}=8

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8th problem)

\frac{z}{2.4}=8

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3 0
3 years ago
Can someone help me ASAP!!
Mkey [24]
It’s the light blue one!!!
7 0
3 years ago
Read 2 more answers
Help me plz i need help
Vikentia [17]

Answer:

x=10

Step-by-step explanation:

Because these are vertical angles, they will be congruent.

Ask yourself, "What times 3 is thirty?" or 30÷3=?

Your answer will be 10.

5 0
2 years ago
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