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romanna [79]
4 years ago
12

What expression is equivalent to the expression (4x+12) + 7x?

Mathematics
2 answers:
pochemuha4 years ago
8 0

Answer:

11x + 12

Step-by-step explanation:

( 4x + 12 ) + 7x

Remove parentheses.

= 4x + 12 + 7x

Group like terms.

= 4x + 7x + 12

Add similar elements: 4x + 7x = 11x

= 11x + 12

Kitty [74]4 years ago
7 0

Answer: 4(x+3) + 7x

Step-by-step explanation:

4(x+3) + 7x

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What is 1/7 of 28.....​
slava [35]

Answer:

4

Step-by-step explanation:

We need to perform a multiplication.

The following rule is applied:

A/B C = AC/B

In our example, the factors in the new numerator are:

28, 1,

Notice that all non-fraction factors are placed in the numerator.

The only factor in the new denominator is:

7

We need to reduce this fraction to the lowest terms.

This can be done by dividing out those factors that appear both in the numerator and in the denominator.

In our example, this is the common factor:

7

We need to evaluate a power by multiplying the base by itself as many times as the exponent indicates.

In our example, base 2 will be multiplied by itself twice.

Then we're left with our answer: 4

7 0
3 years ago
Using a standard deck of cards with Jokers have been removed find the probability of drawing red cards 4 through 10
ioda

Answer:

who are you

I really don't get the question

sorry

7 0
3 years ago
At a profit of 8% a shopkeeper sold a calculator for Rs 1382.40.If he wants to increase his profit by 2%, at what price should h
MAVERICK [17]

Answer: New Price = Rs. 1408

Step-by-step explanation: Selling Price = Rs 1,382.4

Profit = 8%

Increased Profit = 10% (we'll discuss that later)

Costing Price:

Let CP be x

x = 1382.4 - 0.08x

=> x+0.08x = 1382.4

=> 1.08 x = 1382.4

Dividing both sides by 1.08

=> x = Rs 1280

So, the cost price is Rs 1280

Now, Let's discuss about the increased Profit:

Profit %age = 10%

Profit =  Profit %age * CP / 100

Profit = 12800/100

Profit = Rs. 128

New Price:

New Price = CP + Profit

New Price = 1280+128

New Price = Rs. 1408

6 0
4 years ago
The cable supporting a ski lift rises 2 feet for each 5 feet of horizontal length. The top of the cable is fastened 1320 feet ab
ollegr [7]
The resulting triangle is a right triangle with the third side given:
First, the angle can be solved using the given rise and run of the cable. So,
tan θ = 2 / 5
θ = 15.95°

Next, the lengths b and c can be solved using the solved angle:
tan 15.95 = 1320 / b
b = 3300 ft

The hypotenuse or c can be solved by trigonometric functions or using Pythagorean theorem, using the sine function:
sin 15.95 = 1320 / c
c = 4804 ft
5 0
3 years ago
Factor -1(x^(2)-3x-4) and pls show steps
soldi70 [24.7K]

Answer:(-x-1)(x-4)

Step-by-step explanation:

-1(x^{2} -3x-4)

factor the equation (multiples of 4 are 1 and 4 and 2 and 2) 4-1=1 so the factor you want to use are 1 and 4

-1(x +1)(x-4) --  -4+1=3

distribute the -1 into the first factor

(-x-1)(x-4)

8 0
3 years ago
Read 2 more answers
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