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frozen [14]
3 years ago
10

A square has sides of 10x. Write and simplify an expression for the perimeter of that square.

Mathematics
1 answer:
lesya692 [45]3 years ago
7 0

Answer:

The perimeter of the square would be 40x

Step-by-step explanation:

In order to find that, we can use the equation for the length of a perimeter in a square.

P = 4s

Now we can input the value of the sides for s

P = 4(10x)

P = 40x

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100 goods are purchased at the rate of Rs 240.¼ of the goods are sold at the gain of 10%.At what percentage profit must the rest
skelet666 [1.2K]

Answer:

41.66%

Step-by-step explanation:

Total profit we have to gain =25/100×240 =60

Cost of one item = 240/100 =2.40

Also given that 1/4 of total good are sold with 10% profit which mean profit =\frac{10}{100}\frac{1}{4}*100*2.4 =6.

(Here 1/4 of 100 is 25 and cost per unit is 2.4)

Total money to be recovered from 75(100-25) items =60-6 =54

Let profit percentage to be charged on 54 items be p%.

Original cost =2.4×54 = 129.6

Profit amount =54 =129.6×p/100

 p =41.66% =percentage of profit on rest of the goods.

3 0
3 years ago
Adam and his dad share the cost of the meal in the ratio of 2:3. Adam’s dad pays £52.20. What is the total cost of the meal
Ne4ueva [31]
We have to calculate the total cost of the meal. We know that Adam ( A ) and his dad ( D ) share the cost of the meal in the ratio 2 : 3 and that Adam`s dad pays 52.20 Pounds. So A : D = 2 : 3; A : 52.20 = 2 : 3. Using the cross products, A * 3 = 2 * 52.20; A * 3 = 104.40; A = 104.40 : 3; A = 34.80 Pounds. Finally, A + D = 34.80 + 52.20 = 87.00. Answer: The total cost of the meal is 87 Pounds<span>. </span>
6 0
4 years ago
Graph m=3 b=-1 m=-2 b=4
Fittoniya [83]

Answer:

y= 3x − 4

Step-by-step explanation:

The slope-intercept form for a linear equation is

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Given:

m= 3 and b = −4

y= 3x - 4

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