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Korolek [52]
3 years ago
15

A diagram shows a square with a perimeter of 40cm. Work out the percentage of the area inside the square that is shaded.

Mathematics
2 answers:
scoundrel [369]3 years ago
8 0

Answer:

70%

Step-by-step explanation:

otez555 [7]3 years ago
6 0

Answer:

Step-by-step explanation:

10×10=100

3×10=30

6×10=60

15+30=45

100-45=55

55cm²

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Find the value of X.
Semmy [17]

Answer:

x=28

Step-by-step explanation:

90-33=57

2x+1=57

2x=56

x=28

6 0
2 years ago
A triangle has side lengths of 14, 23, and 27. Is it a right angle ?
shusha [124]

Answer:

No, it is not

Step-by-step explanation:

Here, we want to check if the lenghts given is that of a right angle triangle

For a right angle triangle, the square of the hypotenuse is equal to the sum of the squares of the two other sides

The hypotenuse represents the longest side

So 27^2 = 14^2 + 23^2

The difference between these is 4, and as such the triangle is not a right angled

6 0
3 years ago
Lucy correctly answered 70% of the questions on her science homework.she counted 14 correct answers on her paper .if each questi
disa [49]

Lucy has 20 questions in her science home work

<em><u>Solution:</u></em>

Given that,

Lucy correctly answered 70% of the questions on her science homework

She counted 14 correct answers on her paper

<em><u>To find: Number of questions in her science home work</u></em>

Let "x" be the number of questions in her science home work

From given we can say,

Lucy correctly answered 70% of questions

She counted 14 correct answers

70 % of total questions = 14 correct answers

70 % of x = 14

70 \% \times x = 14\\\\\frac{70}{100} \times x = 14\\\\0.70x = 14\\\\x = \frac{14}{0.70}\\\\x = 20

Thus Lucy has 20 questions in her science home work

4 0
2 years ago
Please help me on this problem
nevsk [136]

a cause their really isnt any ADEF like in letters

7 0
2 years ago
A carton of paper is priced at 27.00 now if the paper goes on sale for 25% off the current price what will be the sale price of
hjlf

Okay, to solve this we simply find 75% of the carton of paper, because 100%-25% = 75%

0.75(27) = 20.25

The carton of paper costs $20.25

4 0
3 years ago
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