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3 years ago

Help please 20 pointss

Mathematics

1 answer:

eimsori [14]3 years ago

6 0

Answer:

0.25c

Step-by-step explanation:

.25 is the decimal form of 25%. .25 * c is how you get the amount you don't have to pay on this item.

For example:

.25 * 10= 2.5

10-2.5=$7.5

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A student got 78 marks out of a possible 120. Express the students mark as a percentage

statuscvo [17]

Answer:

65%

Step-by-step explanation:

78/120=13/20

13/20=65/100

65/100=65%

8 0

3 years ago

Read 2 more answers

1.Given the lines shown here, what are two possible equations for this system of equations

ASHA 777 [7]

Answer:

Two possible equations:

$y = x + 1\\y = x - 5\\$

The system has 0 solution as parallel lines never cross each other.

Step-by-step explanation:

Considering the two lines are parallel, they both have the same slope.

let m be the slope of the two lines:

$y = mx + y_{0}\\y=mx+y_{1}$

$y_{0}, y_{1}$ are the value on y axis where the two lines cross the axis.

Because the lines are parallel, there exists no point that lies on both lines, therefore the system has 0 solution.

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3 years ago

Can someone find the perimeter of this shape? ill give brainliest if ur right

Luda [366]

Answer:

Step-by-step explanation:

Add up all the sides to fid the perimeter. 6+6+8+4=24

8 0

3 years ago

HELPPP !!! ILL MARL BRAINLIST

almond37 [142]

Answer:

Hi there!

Your answers are:

1) 2^4 = 2×2×2×2 = 16

2) 2^3= 2×2×2= 8

3) 2^2 = 2×2 = 4

4) 2^1 = 2

5)2^0 = 1

6)2^ -1 = .5

7) 2^ -2 = .25

8) 2^ -3 = .125

9) 2^ -4= .0625

Hope this helps

3 0

3 years ago

A kennel has eight adult dogs and 14 puppies what is the ratio of adult dogs two puppies use a multiplication to have comparison

frez [133]

Number of adult dogs a kennel has = 8 dogs.

Number of puppies = 14 puppies.

<h3>We need to find the ratio of adult dogs to puppies = Number of adult dogs: Number of puppies.</h3><h3>= 8:14.</h3>

Now, we need to write 8:14 in fraction form $\frac{8}{14} .$

Greatest common factor of 8 and 14 is 2.

$\frac{8}{14} = \frac{2\times 4}{2 \times 7}$ $=\frac{4}{7}$ .

<h3>Therefore, ratio of adult dogs to puppies is 4:7.</h3>

4 0

3 years ago