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aliina [53]
3 years ago
13

a number is multiplied by 8 and that product is added to 2. The sum is equal to the product of 2 and 25 . Find the number

Mathematics
1 answer:
pickupchik [31]3 years ago
8 0

Answer:

6

Step-by-step explanation:

So we have a number (let's call it x) and it was multiplied by 8 and added by 2. Therefore:

8x+2

And we are told that the sum is equal to the product of 2 and 25 (or 50). Thus:

8x+2=50

To find the number, we just need to find x. Thus, subtract 2 from both sides:

8x=48

Divide both sides by 8:

x=6

And we're done!

So, our original number was 6.

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Step-by-step explanation:

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2 years ago
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the sum of three times one number, x, and five times a second number,y, is 77. if the sum of the two numbers is 19, find the two
HACTEHA [7]

Answer:

x=9, y=10. (9, 10). The two numbers are 9 and 10.

Step-by-step explanation:

3x+5y=77

x+y=19

------------------

3x+5y=77

-3(x+y)=-3(19)

---------------------

3x+5y=77

-3x-3y=-57

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2y=20

y=20/2

y=10

x+10=19

x=19-10

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5 0
3 years ago
Which represents the solution of the graphed system of equations, y=x^2-2x and y=-2x-1
elena55 [62]

Answer:

x = √(-1) = i

Since the value of √(-1) is not real.

The system has no real solution.

Step-by-step explanation:

The solution to the system of equations is at the point where they intercept each other.

y1 = y2

For the given equation;

y=x^2-2x and y=-2x-1

To get the where they intercept, we will equal both equations;

y=x^2-2x = -2x-1

x^2 - 2x = -2x - 1

x^2 - 2x + 2x + 1 =0

x^2 +1 = 0

x^2 = -1

x = √(-1) = i

Since the value of √(-1) is not real.

The system has no real solution.

6 0
3 years ago
Question 2 (5 points)<br> What is the value of x?<br> HELP ASAP
Anton [14]

Step-by-step explanation:

In \:  \triangle HDT,  \: BM || DT.. (given)  \\  \\  \therefore \:  \frac{HM}{MT} =  \frac{ HB}{ BD} \\ (by \: basic \: proportionality \: theorem) \\  \therefore \:  \frac{6}{x} =  \frac{9}{15} \\  \\  \therefore \:  x=  \frac{15 \times 6}{9} \\  \\  \therefore \:  x=  \frac{90}{9} \\  \\ \therefore \:  x=  10 \\  \\

3 0
3 years ago
Best and correct answer gets brainliest!!!
dmitriy555 [2]
59 degrees!
because you set up your problem: 3c+2+2c-7=90
then combine all like terms: 5c-5=90
Add 5 to both sides: 5c=95
then divide both sides by 5: c=19
Plug in your answer: 3(19)+2=59
8 0
3 years ago
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