In a Mathematics test,Alex got 80% of the question correct. He got 40 questions correct. Each question on the paper carried 3 marks. How many marks did he lose in that test ?​

Answers

Answer 1

Answer: 30 marks lost

Step-by-step explanation:  80% = 40 question so 100% = 50 questions

he missed 10 of 50 so

10 x 3 = 30 marks


Related Questions

Quadrilateral MNPQ is shown on the grid below.


What is the area, in square units, of the quadrilateral?

A) 182 square units

B) 4550 square units

C) 9100 square units

D) 91 square units

Answers

Answer:

42 square units

Step-by-step explanation:

Find the diagram attached

Area of the diagram = Area of the triangle + Area of rectangle

Area of rectangle = Length * Width

Area of rectangle = 3 * 6

Area of rectangle = 18 square units

Area of triangle = 1/2 * base * height

Get the base of the tringle using the pythagoras theorem;

b^2 = 10^2-6^2

b^2 = 100 - 36

b^2 = 64

b = 8units

height = 6 units

Area of the triangle = 1/2 * 8 * 6

Area of the triangle = 48/2

Area of the triangle  = 24 square units

Area of the figure = 18+24

Area of the figure = 42 square units

Which one is false ????

Answers

3 you’re welcome
llllllll

Please answer these questions for me I wanna enjoy being outside today.

Answers

Answer:

1. y = 3x - 3

2. y = -2 1/2x + 10

10/-4 = -2 1/2 is the slope

3.  undefined

4. y = x - 4

5. y = x - 5

6. 6x + 2y = 4 and -3y = 9x + 12

7. -3x + y = 7, y = 3x + 1, and y =3x

8. y = 2x + 5

9. y = 1/4x - 4

The length of a rectangle is 45 inches and the width is 8 inches. A similar rectangle has a width of 24 inches what is the perimeter of the second rectangle? Show your work

Answers

Answer: The answer is 318

Step-by-step explanation:

cual es el valor de x en x4 = -8

Answers

Answer:56

Step-by-step explanation:

2x divide 4 from both sides.

A group of friends are going ice skating. The price of admission is $3.25. As a group, they spent $14 on refreshments. If they spent a total of $30.25 on admission and refreshments, how many friends went ice skating?
2 friends
5 friends
14 friends
53 friends

Answers

Answer: 5 friends

Steps:
3.25x + 14 = 30.25
3.25x = 30.25 - 14
3.25x = 16.25
x = 16.25/3.25
x = 5

Check:
3.25x + 14 = 30.25
3.25(5) + 14 = 30.25
16.25 + 14 = 30.25
30.25 = 30.25 ✅

I would appreciate the brainliest if this was helpful had clear steps and was correct! :)

Answer:

5 friends

Step-by-step explanation:

GIVING BRAINLIEST TO SOMEONE WhO CAN SOLVE ALL 3 OF THESE

Answers

Answer:

2. 20

3. 9

4. 24

2.4(7-2)^1=4(5)=20

3.2(8-1)^0 + 7= 2×1 + 7= 2+7=9

4. 3×4 + 12= 12 + 12= 24

What is the measure of ∠x? Please help!!

Answers

Answer:

73

Step-by-step explanation:

180-107=73

Suppose the points shown on the coordinate plane are vertices of a rectangle. Which statements are correct? A) The perimeter of the rectangle is 14 units. B) The perimeter of the rectangle is 28 units. C) The coordinates for the fourth vertex of the square are (5, 5). D) The coordinates for the fourth vertex of the rectangle are (−5, −6). E) The coordinates for the fourth vertex of the rectangle are (−5, −3).

Answers

Answer:

A

Step-by-step explanation:

Answer:

I beleive it is A and C i just took the test!

Step-by-step explanation:

yourwelcome! :)

Which expression is a factor of x² − 5x − 6?

A. x − 1

B. x − 2

C. x − 6

D. x − 3

Answers

Answer:

C

Step-by-step explanation:

in a toy store, the ratio of the dolls to teddy bears is 9:3. If the store has 240 dolls, how many teddy bears are in the store?

Answers

If the ratio is 9 to 3 and there are 240 dolls divide 240 by 3 which equals 80

:)

Jess has $50 to spend on clothes. The jacket she wants to buy is $38.50. If the tax rate is 8%, how much money will Jess have left once she buys the jacket?

Answers

Answer:

$8.42

Step-by-step explanation:

38.50(0.08)

3.08

38.50+3.08

41.58

50-41.58

8.42

Hope this helps

How can you convert a fraction into a decimal.

Answers

Answer:

put the top number of the fraction (numerator) inside the division bracket and the bottom number (denominator) outside, to the left of the division bracket. The fraction 1/4 becomes 1 ÷ 4. Complete the division to convert the fraction to a decimal.

Hope this helps!

45% of c is 72. Find the value of c.. PLEASE IT IS DUE IN 5 MINUTES

Answers

Answer:

160

Step-by-step explanation:

72x100/45. Hope this helps

Need help fast!!

What is value of x?
Enter your answer in the box.

Answers

Answer:

x = 27

Step-by-step explanation:

Using ratio:

[tex] \frac{10}{14} = \frac{x + 8}{2x - 5 } \\ 10(2x - 5) = 14(x + 8) \\ 20x - 50 = 14x + 112 \\ 20x - 14x = 112 + 50 \\ 6x = 162 \\ \frac{6x}{6} = \frac{162}{6} = > x = 27.[/tex]

kale is a leafy green vegetable that is low in calories

Answers

Answer:

Yes

Step-by-step explanation:

Its 100% true :)

Answer:

yes this is true

Step-by-step explanation:

HAVE A GREAT DAY!!!!!!!!!!!!!!

Question in photo! ty :)

Answers

Step-by-step explanation:

its easy use a calculator and in place of x put 1.5 and in place of y put 3.

Answer:

9/2

Step-by-step explanation:

area of rectangular figures​

Answers

Answer:

531 in^2

Step-by-step explanation:

21 x 18 = 378 in^2

17 x 9 = 153 in^2

378 + 153 = 531 in^2

Please help with explanation.

Answers

Y = mx + b
Use the formula
You know m = slope
And b = y intercept
Plug in the numbers
Solution: y=6x+2

The measure of HMQ is (4x – 20)° ?

Answers

Answer:

A

Step-by-step explanation:

(-3x)^2

wbat is this please ​

Answers

if you want me to solve (-3x)²

the answer is 9x²

Answer:

answer in the picture.......

When Frank buys three packs of pens, he knows he has 36 pens. When he buys five packs, he knows he has 60 pens. What is the constant of proportionality between the numbers of packs and the number of pens?

Answers

Answer:

just add

Step-by-step explanation:

96

3
Antonio's Pizza Shop charges
$12 for a large cheese pizza
plus $0.50 for each topping added.
Write an equation Antonio can use
to be able to determine the total (y)
for any large pizza no matter the
number of toppings ordered (x).

Answers

Answer:

C = 12 + 1.5t

Step-by-step explanation:

Answer:

$12 + x = y

Step-by-step explanation:

x = number of topping

y = total cost of pizza

Hope this helps :)

25% of
___= 4 what is the correct answer?

Answers

Answer:

Answer is 16%

Step-by-step explanation:

I hope it's helpful!

Answer:

16

Step-by-step explanation:

Do 4/ 1 over 4.  This simplifies to 4*4 so your answer is 16.  To check 4/16 = 0.25

PLEASE I NEED URGENT HELP!!!!! lan and Jessica each save their quarters. Ian starts out with 34 quarters and saves 8 quarters a month. Jessica starts out with 2 quarters and saves 16 quarters a month. In how many months will Jessica have the same number of quarters as lan? How many quarters will each of them have?

Answers

4 months. Each will have 66 quarters.
34+8+8+8+8= 66
2+16+16+16+16= 66

someone help for brainliest

Answers

Answer:

b and e

Step-by-step explanation:

10x-2x+12=2(3x+5)+2x

Answers

Answer: is this pemdas? if not there are no true solutions

Step-by-step explanation:

hope i helped

Answer:

the answer to 10x-2x+12=2(3x+5)+2x is 2

Step-by-step explanation:

step 1.

Open the brackets by multiplying the valves in the brackets by 2:

10x-2x+12=6x+10+2x

step 2.

Add or subtract the like-terms : x values.

8x+12=8x+10

step 3.

substitute by bringing like terms together:

12-10=8x-8x

2=0

ans =2

Which image is a reflection of the right triangle shown over the given line of reflection?

A blue triangle and a line are shown.The triangle has a horizontal side on the bottom, a vertical side on the right, and a diagonal side that goes up from the left end of the horizontal side to the top of the vertical side. The horizontal side is shorter than the vertical side. A right angle symbol is shown between the horizontal and vertical sides. A vertical line is shown to the right of the triangle.
A. A blue triangle is shown.The triangle has a horizontal side on the bottom, a vertical side on the left, and a diagonal side that goes up from the top of the vertical side to the right end of the horizontal side. The horizontal side is shorter than the vertical side. A right angle symbol is shown between the horizontal and vertical sides.
B. A blue triangle is shown.The triangle has a horizontal side on the top, a vertical side on the right, and a diagonal side that goes up from the left end of the horizontal side to the bottom of the vertical side. The horizontal side is shorter than the vertical side. A right angle symbol is shown between the horizontal and vertical sides.
C. A blue triangle is shown.The triangle has a horizontal side on the bottom, a vertical side on the right, and a diagonal side that goes up from the left end of the horizontal side to the top of the vertical side. The horizontal side is longer than the vertical side. A right angle symbol is shown between the horizontal and vertical sides.
D. A blue triangle is shown.The triangle has a horizontal side on the bottom, a vertical side on the right, and a diagonal side that goes up from the left end of the horizontal side to the top of the vertical side. The horizontal side is shorter than the vertical side. A right angle symbol is shown between the horizontal and vertical sides.

Answers

Answer:

i think

B. A blue triangle is shown.The triangle has a horizontal side on the top, a vertical side on the right, and a diagonal side that goes up from the left end of the horizontal side to the bottom of the vertical side. The horizontal side is shorter than the vertical side. A right angle symbol is shown between the horizontal and vertical sides.

Eric has a bag of carrots that weighs 3 pounds. He separates the carrots equally into 10 containers. How many pounds are in each container?

Answers

Answer:

3/10 pounds

Step-by-step explanation:

Distribute 3 pounds equally into 10 containers so it is 3/10 pounds in each container.

In "The Wheel of Woohoo" game, I'm taking a chance on
a spinner with 20 outcomes. If it lands on an even
number, I'll win a prize.
How likely is it to land on an EVEN number?
50-50 chance
highly likely
highly unlikely
unlikely
T

Answers

Answer:

50-50 chance

Step-by-step explanation:

Even: 2 4 6 8 10 12 14 16 18 20

Odd: 1 3 5 7 9 11 13 15 17 19 21

Answer:

50:50 chance

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