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2 years ago

A cake is cut into 8 slices. If i give 3 slices away,what fraction of cake is left

Mathematics

2 answers:

____ [38]2 years ago

6 0

The correct answer is 5/8

Explanation:

To get our answer first we lay it out, 8/8 - 3/8. Then we take into consideration subtraction, so you have your final answer of 5/8.

Hope This Helps!!!

-AnimeDabGirl

Georgia [21]2 years ago

3 0

Answer: 5/8

Step-by-step explanation: Its cut into 8 slices and you give 3 away so you do 8-3=5 and that means it would be 5/8.

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If a = x+21, b = 8, c = x + 4, and d = 10, then the value of x is Answer . (Round your answer to one decimal)

Zinaida [17]

Answer:

Step-by-step explanation:

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2 years ago

Find the area of a semicircle.<br>a 4.7 yd

Anika [276]

Answer:

Step-by-step explanation:

Dont know if this helps but heres something.

A = πr²/2 = 1938.900992 * π [yd²] ≈ 4.7 [yd²]

Use this if you want to

https://www.omnicalculator.com/math/semicircle-area

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3 years ago

How do i solve <br> 3n= 3.6

quester [9]

Answer:

n = 1.2

Step-by-step explanation:

3n = 3.6

Divide both sides by 3 to get n by itself.

3.6/3 = 1.2

n = 1.2

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2 years ago

Read 2 more answers

A biology test is worth 100 points and has 36 questions.

Ad libitum [116K]

Answer:

(a) 7 essays and 29 multiple questions

(b) Your friend is incorrect

Step-by-step explanation:

Represent multiple choice with M and essay with E.

So:

$M + E= 36$ --- Number of questions

$2M + 6E = 100$ --- Points

Solving (a): Number of question of each type.

Make E the subject of formula in $M + E= 36$

$E = 36 - M$

Substitute 36 - M for E in $2M + 6E = 100$

$2M + 6(36 - M) = 100$

$2M + 216 - 6M = 100$

Collect Like Terms

$2M - 6M = 100 - 216$

$-4M = - 116$

Divide both sides by -4

$M = \frac{-116}{-4}$

$M = 29$

Substitute 29 for M in $E = 36 - M$

$E = 36 - 29$

$E = 7$

Solving (b): Can the multiple questions worth 4 points each?

It is not possible.

See explanation.

If multiple question worth 4 points each, then

$2M + 6E = 100$ would be:

$4M + xE = 100$

Where x represents the number of points for essay questions.

Substitute 7 for E and 29 for M.

$4 * 29 + x * 7 = 100$

$116 + 7x = 100$

Subtract 116 from both sides

$116-116 + 7x = 100 -116$

$7x = 100-116$

$7x = -16$

Make x the subject

$x = -\frac{16}{7}$

Since the essay question can not have worth negative points.

Then, it is impossible to have the multiple questions worth 4 points

<em>Your friend is incorrect.</em>

6 0

2 years ago

Simplify the expression: <br>3+ – 5(4+ – 3v)

Mandarinka [93]

Answer:

The answer is

Step-by-step explanation:

3+ – 5(4+ – 3v) can be written as

3 - 5( 4 - 3v)

Expand and simplify

That's

3 - 20 + 15v

15v - 17

Hope this helps you

6 0

3 years ago