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barxatty [35]
3 years ago
9

Can someone check my answers?

Mathematics
1 answer:
tatyana61 [14]3 years ago
3 0
You are correct with that answer
You might be interested in
A man sold a fan for Rs. 400. Find the cost price if he incurred a loss of 15%.
statuscvo [17]

Answer:

Cost price of the fan is \text {Rs. 470.59}.

Step-by-step explanation:

Given: A man sold a fan for  \text{Rs.}\:400. He incurred a loss of 15\%.

To find: The cost price of the fan

Solution:

We have,

Selling price, S.P.,  of the fan = \text{Rs.} 400

Loss =15\%

We know that \text {Loss\%}=\frac{\text{C.P.-S.P.}}{\text{C.P.}}\times100\%

Now let the C.P. of the fan be \text{Rs.} \:x

So, 15=(\frac{x-400}{x})\times 100

\implies 15x=100x-40000

\implies 100x-15x=40000

\implies 85x=40000

\implies x=\frac{40000}{85}

\implies x= 470.59

Hence, the cost price of the fan is \text {Rs. 470.59}.

7 0
3 years ago
the cost of a renting a car is $55/wk plus $0.15/ mi traveled during that week . an equation to represent the cost would be y =5
Morgarella [4.7K]
The maximum number of miles you could drive would be 300.
Multiply 0.15 by 300 and that adds up to $45. 45 + 55 = $100
An equation to explain this would be
y = 55 + 0.15x
y represents your $100 budget, 55 is the initial rental fee, and if you plug 300 in for x that solves your equation.
4 0
3 years ago
Read 2 more answers
Solve the equation for x. x - 3.1 = -2.1 a. 1 b. -1 c. -1.1 d. 1.1
grandymaker [24]

Answer:

<h2><em><u>x = 1 is the answer.</u></em></h2>

Step-by-step explanation:

<em><u>Question</u></em> = x - 3.1 = -2.1

<h2><em><u>1. Isolate the variable</u></em></h2>

x - 3.1 = -2.1

  + 3.1  + 3.1

<h2><em><u>2. Simplify the like terms</u></em></h2>

-2.1 + 3.1 = 1

<h2><em><u>3. x = ?</u></em></h2>

X = 1 is the answer.

Hope this helps,

Kavitha

6 0
3 years ago
Read 2 more answers
356.178 in expanded form​
Leno4ka [110]
300,000
+
50,000
+
6,000
+
100 or 0.100 if decimal
+
70 or 0.07 if decimal
+
8 or 0.008 if decimal
7 0
3 years ago
Length of a rectangle is 4x²+12x and the area of the rectangle is 24x⁴+72x³, what is the width of the rectangle?
snow_lady [41]

Answer:

The width is 6x^2

Step-by-step explanation:

The area of a rectangle is given as : Area=l\times w

This implies that: w=\frac{Area}{l}

We have that the length is l=4x^2+12x and the area is Area=24x^4+72x^3

We substitute to get:

w=\frac{24x^4+72x^3}{4x^2+12x}

\implies w=\frac{24x^2(x^2+3x)}{4(x^2+3x)}

We cancel out the common factors to get:

w=6x^2

6 0
3 years ago
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