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 mark answers all the questions and gets a grade of 65% of the test, what percent of the questions did he answer correctly?

Answers

Answer 1

Answer:

he answered 26% correctly

Step-by-step explanation:

Answer 2

Answer:

75%

Step-by-step explanation:


Related Questions

discover the pattern and continue 1,2,4,7,11,16,_,_,,_,_

Answers

Answer:

Step-by-step explanation

To go from 1 to 2, you add one. To go from 2 to 4 you add two. To go from 4 to 7, you add three. Then you add 4. Then you add 5 and so on.

convert 4 miles to feet
A. 21,120
B. 21,000
C. 22,000
D. 20,210

Answers

Answer: A. 21,120

Step-by-step explanation: Good luck! :D

The correct answer is A
A. 21,120

PleSe please help powaseee

Answers

Yes, similar
All triangles = 180°
So 120+26=146
180-146=34
Therefore all angles are the same for each triangle.

5x + 4y = 20 on a graph

Answers

Answer:

5x + 4y = 20 on a graph

Step-by-step explanation:

Can some oen help me?

Answers

Answer: 12 + 21y

Step-by-step explanation:

Answer:

12 + 21y

Step-by-step explanation:

On a shelf there are 60 novels and 20 poetry books. What is the probability that person A chooses a novel and walks away with it and then person B walks up shortly after and picks another novel?

Answers

On a shelf there are 60 novels and 20 poetry books. Person A chooses a book at random off the shelf and leaves with it. Shortly after, Person B chooses another book at random. Calculate: 1)The probability that the book selected by Person B is a novel? = A picks a novel and B picks a novel OR A picks poetry and B picks novel =( 60/80*59/79) + ( 20/80* 60/59) = 0.75 2)

Carmen is buying a fitness tracker that costs $129.95. She has a coupon for 20%. After the coupon is used, 7% tax will be charged. What is the final cost of the fitness tracker with tax?

Answers

9514 1404 393

Answer:

  $111.24

Step-by-step explanation:

The use of a 20% off coupon causes the price to be multiplied by (1 -20%) = 0.80. The addition of 7% tax causes the discounted price to be multiplied by (1 +7%) = 1.07. Multiplying the price by these two factors gives ...

  $129.95 × 0.80 × 1.07 = $111.24

The final cost with tax is $111.24.

Find the value(s) of the variable(s). Write your answer(s) in simplest radical form.

Answers

Answer:

Step-by-step explanation:

12). By applying Pythagoras theorem in the given right triangle,

      Hypotenuse² = (Leg 1)² + (Leg 2)²

      x² = 7² + 7²

      x² = 2(7)²

      x = [tex]\sqrt{2(7)^{2} }[/tex]

      x = [tex]7\sqrt{2}[/tex]

13). By sine rule,

      sin(60)° = [tex]\frac{\text{Opposite side}}{\text{Hypotenuse}}[/tex]

      [tex]\frac{\sqrt{3}}{2}=\frac{9\sqrt{3} }{y}[/tex]

      y = [tex]\frac{18\sqrt{3} }{\sqrt{3} }[/tex]

      y = 18

      By cosine rule,

      cos(60)° = [tex]\frac{\text{Adjacent side}}{\text{Hypotenuse}}[/tex]

      [tex]\frac{1}{2}=\frac{x}{y}[/tex]

      x = [tex]\frac{y}{2}[/tex]

      x = [tex]\frac{18}{2}=9[/tex]

14). By applying Pythagoras theorem in the given right triangle,

      12² = x² + x²

      144 = 2x²

      72 = x²

      x = √72

      x = 6√2

PLEASE HELP ME NOT TOO HARD
Mary has to spend $12000 on expenses each year. If that amount of money is 20% of her salary, then how much money does Mary make working as an engineer per year?
ALSO PLEASE LEAVE A STEP BY STEP EXPLINATION TY

Answers

Answer:

Total salary = $60,000

Step-by-step explanation:

Well I'm just going to make this short and easy... ok?

12,000=20%

20%x5 = 100%

hmmmm....

12,000 x 5 = ???

Answer = $60,000

What is solution of 5(x - 3)=4(x + 2)

Answers

Answer:

x=23

Step-by-step explanation:

You simplify both sides of the equation, then isolate the variable.

Answer:

x=23

Step-by-step explanation:

Match the angle in parallelogram WXYZ with a congruent one
∠XWZ

Answers

Step-by-step explanation:

Opposite angles in a parallelogram are congruent.

Therefore Angle XWZ = Angle XYZ. (D)

Answer:

D)XYZ

Step-by-step explanation:

I am pretty sure that's the answer

Kiran scored 223 fewer points in a computer game than Tyler. Kiran scored 409 points. Which equation would Kiran use to determine how many points, t, Tyler scored?​

Answers

Answer:

[tex]t-223=409[/tex]

Step-by-step explanation:

Since Kiran scored 223 fewer points in a computer game than Tyler, Tyler's score can be represented as:

[tex]k+223=t[/tex], where [tex]t[/tex] is Tyler's score and [tex]k[/tex] is Kiran's score.

Since Kiran scored 409 points, we can set [tex]k=409[/tex]:

[tex]409+223=t[/tex].

Re-arranging this, we get:

[tex]\fbox{$t-223=409$}[/tex].

Answer:

h

Step-by-step explanation:

j

I WILL GIVE BRAINLIEST TO RIGHT ANSWER
write an equation of the line in a slope intercept form of a line that passes through (5,7) and (4,4)

Answers

Answer:

y = 3x - 8

Step-by-step explanation:

passes through (5, 7) and (4, 4)

Find slope:

(7 - 4) / (5 - 4)

= 3/1

= 3

This is your slope.

Now plug in a set of coordinates.

y = 3x + b

7 = 3(5) + b

7 = 15 + b

b = -8

Your equation is: y = 3x - 8

Check your work by plugging in the second coordinate pair.

y = 3x - 8

4 = 3(4) - 8

4 = 12 - 8

4 = 4

Your solution is correct.

The height of a boulder falling off a 500 meter cliff can be modeled using a quadratic equation.
Part A: Write the quadratic equation to represent this situation.
Part B: Determine the time it will take the boulder to reach the ground.
Part C: In one paragraph, using your own words, explain your work in Steps A and B.​

Answers

Answer:

The answer is t=4 s

Step-by-step explanation:

Answer: T=4s

Step-by-step explanation: it is option 2


Benito wants to buy a car. He is considering two different models, Model Ais 5 ft wide. Model B is 87 in, wide. Express the width of each car in ft using a decimal. Which car is wider?

Answers

Model B is wider Bc it’s 7.25 ft

At a restaurant your bill is $32. You have a coupon for 15% off. You are in Idaho and they charge you 7% tax. (Discount before tax) What is the final cost of your meal after your discount and with tax included? Round to the nearest cent.

Answers

Answer:

the answer is 25.30

Step-by-step explanation:

1. first you subtract the 15% from the bill that comes out to $27.20

2. next subtract the 7% tax from the $27.20 to get your answer

The slope formula can be used to find the slope, m, of a line with points (L1, y1) and (22, 42).
Y2 - Yi
22 - 21
m
Which is an equivalent equation?
O Y1 = -m (22 – x1) + y2
yı = -m (x2 – 21) – Y2
Oyı = m (22 – 21) + y2
Oyı = m (22 – 21) – Y2

Answers

Answer:

A. [tex] y_1 = -m(x_2 - x_1) + y_2 [/tex]

Step-by-step explanation:

Given, slope formula = [tex] m = \frac{y_2 - y_1}{x_2 - x_1} [/tex]

To find an equivalent equation, let's make [tex] y_1 [/tex] the subject of the formula.

[tex] m = \frac{y_2 - y_1}{x_2 - x_1} [/tex]

Cross multiply

[tex] 1(y_2 - y_1) = m(x_2 -x_1) [/tex]

[tex] y_2 - y_1 = m(x_2 - x_1) [/tex]

Subtract [tex] y_2 [/tex] from both sides

[tex] y_2 - y_1 - y_2 = m(x_2 -x_1) - y_2 [/tex]

[tex] - y_1 = m(x_2 - x_1) - y_2 [/tex]

Divide both sides by -1

[tex] \frac{- y_1}{-1} = \frac{m(x_2 -x_1) - y_2}{-1} [/tex]

[tex] y_1 = -m(x_2 - x_1) + y_2 [/tex]

b)
Work out the size of one interior angle.
NEED HELP WITH B
thanks everyone

Answers

Sum of interior angles of a pentagon = 540 degrees

So 540/5 = 108 degrees
A single interior angle of a pentagon is 108 degrees

5x+2y=13
2x+6y+26
what is the answer to the question

Answers

Step-by-step explanation:

5x+2y=13

2x+6y=26

[tex]5x = 13 - 2y \\ x = \frac{13 - 2y}{5} [/tex]

[tex]2( \frac{13 - 2y}{5} ) + 6y = 26[/tex]

[tex] \frac{26}{5} - \frac{4y}{5} + 6y = 26[/tex]

[tex]6y - \frac{4y}{5} = 26 - \frac{26}{5} \\ [/tex]

[tex]5.2y = 20.8 \\ y = 4 \\ x = \frac{13 - 2 \times 4}{5} = \frac{13 - 8}{5} \\ x = 1[/tex]

A 35 ounce bag of chips costs $4.99.
What is the price per ounce?

Answers

Answer:

The answer to the question provided is $7.01

Please help! Please show work.

Answers

Answer:

c is the correct option

Step-by-step explanation:

6*2/3=4

20 divided by 2/3=30

– 2y – 10 = x
- 10x - y = -14

Answers

Answer:

hey there guys ^^

Step-by-step explanation:

Can someone tell me the answers? Like for example point A is 5,3) please help

Answers

Sure! Please give brainly if I'm correct, and thank you!

A= 5,3

B= 0,0

C= -9,-4

D= -10,4

E= 4,-8

F= 10,10

G= -4,0

H= 0,7

I= -6,-8

J= 9,-2

which postulate proves the two angles are congruent?

Answers

Answer:

HL (hypotenuse leg)

Step-by-step explanation:

They share a leg, meaning they must be an equal length, and the hypotenuse is congruent, so the hypotenuse leg theorem says they are congruent.

what is the coefficient of y in 1 x 4 + 7y

Answers

Answer: The coefficient, which in this case is the numerical coefficient, is 7. Hope this helps (:
The coefficient would be 7. The coefficient means the number before a variable. In this case the variable is Y and the number before it is 7. Hope this helps, please mark brainlist?

Who can help with this question please?​

Answers

Answer:

Let the sum be x.

Using formula,

I=

100

PRT

=

100

12

15

×

2

15

100

12

8

×

2

25

=32.50

2400

25x

=32.50

⇒x=

25

32.50×2400

=3120

∴ Required sum =Rs.3120

Step-by-step explanation:

A new tablet was originally $180. It was on sale for 10% off the original price. The amount of the tablet after 10%

Answers

So first, find 10% of 180. 10% of 180 is 180/10 which is 18. Take £18 away from £180 which is £162. The price of the tablet after 10% is £162

Answer:

$162

Step-by-step explanation:

10% of 180 is 18

180-18=162

(-z-8)-(6z-5)
HELP FAST

Answers

A is your answer -7z-3

The edges of a cube are 5 centimeters each and the diagonal of a face is approximately 7 centimeters. What is the approximate area of the cross section passing through the diagonals of opposite faces of this cube? A. 12 square centimeters B. 25 square centimeters C. 35 square centimeters D. 49 square centimeters

Answers

Answer:

C. 35 square centimeters

Step-by-step explanation:

What we need for this question:

The edges of a cube are 5 centimeters each.

The face diagonal is about 7 centimeters. (actually 7.0710678118655 cm)

To find the cross sectional area here, multiply 5 cm by 7 cm.

5 cm * 7 cm

35 cm² is your final answer, so C is the answer.

Answer:

It is C. 35 square centimeters

Step-by-step explanation:

For the function w, w(3) = -2 and w(-2) = 8. If y = w(x), what is the value of y when
x = -2?

Answers

Answer:

6

Step-by-step explanation:

i took the test on edge

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