3 years ago

Translate the sentence into an equation using n to represent the unknown number. Then solve the equation for n

Mathematics

1 answer:

Yakvenalex [24]3 years ago

7 0

I don’t understand either i had the exact problem

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Can someone help out (; plz

zubka84 [21]

Answer:

Step-by-step explanation:

8 0

3 years ago

Please help with the this give tiny explanation

Mila [183]

Answer:

first we begin from 1 to 100 we find 11 numbers contain 1 then we count 1s from 10 to 19 we get 9 numbers but there is an exciption in number 11 as it cotains 2 1s so thenumber of 1s is 21

5 0

3 years ago

The CP of 25 articles is equal to the SP of 30 articles . Find the profit and loss percentage .

Studentka2010 [4]

Answer:

Loss = 16.67%

Step-by-step explanation:

Assume cost price(CP) of 1 article = x

Therefore cost price of 25 articles = 25x

Given cost price of 25 article = selling price of 30 articles

Clearly, it is a loss.

Selling price(SP) of 30 articles = 25x

$So , \ selling \ price\ of\ one\ article = \frac{25x}{30}\\\\Therefore , Loss \% = \frac{CP - SP}{CP} \times 100\\$

$=\frac{x - \frac{25x}{30}}{x } \times 100\\\\=\frac{30x - 25x }{30x }\times 100\\\\=\frac{5}{30} \times 100\\\\=16.67 \%$

5 0

3 years ago

Read 2 more answers

Which set represents the domain of function shown? {(-3,6),(0,2),(4,7),(11,15)}

ValentinkaMS [17]

Answer:

{-3,0,4,11}

Step-by-step explanation:

{(-3,6),(0,2),(4,7),(11,15)}

The domain is the input values, or x coordinates

{-3,0,4,11}

8 0

3 years ago

Length of a rectangle is 7 less than 3 times it’s width. Area is 40cm^2. Find dimensions URGENT

sasho [114]

X= width
length= 3x-7
Area: (x)(3x-7)=40
= 3x^2-7x=40
= 3x^2-7x-40=0
Factorise the equation: (3x+8)(x-5)=0
x=-8/3 (reject because width cannot be negative) or x=5
so width is 5cm and length is 3(5)-7= 8cm !

7 0

2 years ago