4 years ago

Find the solutions to the system

1 answer:

3 0

<span>y=x^2+5x+6
y=4x+12
Solution = (-3,0) and (2,20)

</span><span>y=x^2-3x-1
y=8x-1
Solution = (0,-1) and (11,87)</span>

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Five times the difference of twice a number and seven is negative twenty-five. Find the number.

Sati [7]

The number is 1

Step-by-step explanation:

Let x be the required number

Then according to given statement

Five times the difference of twice a number and seven is negative twenty-five.

$5(2x-7) = -25$

Simplifying

$10x-35 = -25\\$

Adding 35 on both sides

$10x-35+35 = -25+35\\10x = 10$

Dividing both sides by 10

$\frac{10x}{10} = \frac{10}{10}\\x = 1$

Verification:

$5[2(1)-7] = -25\\5(2-7) = -25\\5(-5) = -25\\-25=-25$

Hence,

1 is the number

Keywords: Linear equation

Learn more about linear equation at:

#LearnwithBrainly

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4) A sales associate in a department store earns a commission on each suit and each pair of shoes sold. One week, she earned $47

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Answer a write a system of equation

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4 years ago

HELP PLZ

Lera25 [3.4K]

Answer:

the answer is 28 for A the answer for B is -5 for A, 15 for B, and -6 for C

Step-by-step explanation:

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3 years ago

How do I use multiplication to convert 4 and 5/6 into an improper fraction?

Pepsi [2]

Answer:

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3 years ago

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yKpoI14uk [10]

Answer:

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Step-by-step explanation:

There are 31 days in January, 28 in February (this was not a leap year), 31 in March and 30 in April. All you have to do now is add 31 + 28 + 31 + 30 for a final answer of 120 days!

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