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NISA [10]
3 years ago
10

Write the expression 6 less 7 times a number

Mathematics
2 answers:
ANTONII [103]3 years ago
5 0

Answer: 7x - 6

Step-by-step explanation:

  1. Since you are not aware what the number's value is, use a variable, as 7x since 7 is multiplied by an unknown number. Then, subtract 7x - 6.
storchak [24]3 years ago
5 0

Answer:

7x_6 is the correct answer.

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Four times a​ number, subtracted from four​, is twice the number. Find the number.
abruzzese [7]

Answer:

\frac{2}{3}

Step-by-step explanation:

let the number be n , then

4 - 4n = 2n ( add 4n to both sides )

4 = 6n ( divide both sides by 6 )

\frac{4}{6} = n

The number is \frac{2}{3}

7 0
3 years ago
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What is the product of 6x-y and 2x-y+2?
Ganezh [65]
Product = multiply

(6x-y)*(2x-y+2) =

12x^2 -8xy + 12x + y^2 - 2y


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3 years ago
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Please help worth 25 points
wariber [46]

Answer:

h=6 feet

Step-by-step explanation:

Given: 1. The base of a rectangle is three feet longer than its height.

2.Are of the rectangle=54 square meters

Let us say the rectangle has height h and base(breadth) b.

Since, the base of the rectangle is three feet longer than the height, we have b=h+3.

Also, Area of the Rectangle= hb

therefore, 54=h(h+3)

54= h2+ 3h

h2+3h-54=0 (Subtract 54 from both the sides)

To find the value of h we have to solve the quadratic equation.

[We have the equation in the form ax2+bx+c=0, to factorise the equation-

Step1. Find two numbers such that their multiplication is equal to ac and their addition is equal to b.

Step2. Replace b with these numbers.

Step3. Simplify the equation]

So, h2+3h-54=0

h2+9h-6h-54=0

h(h+9)-6(h+9)=0

(h+9)(h-6)=0

Which gives-

h= -9 or h= 6

As h is the height of the rectangle, h can not be -9.

so h=6 feet

and b=h+3=9 feet

So the dimensions of the rectangle are 6 feet for the height and 9 feet for the base.

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2 years ago
Bought to video games for a total of $55 their prices have a difference of $15
shepuryov [24]

Answer:

The answer is 40

Step-by-step explanation:

55-15=40

5 0
3 years ago
What does it mean to multiply fractions?
Anastasy [175]

to put them together and add them.

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3 years ago
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