2 years ago

If the sum of two numbers is 90 but their difference is 12 what are the two numbers

Mathematics

1 answer:

emmainna [20.7K]2 years ago

5 0

51 and 39. Have a great day!

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Solve the Equation for y . 9x +5y = -2

ASHA 777 [7]

Answer:

$\large\boxed{y=\dfrac{-9x-2}{5}}$

Step-by-step explanation:

$9x+5y=-2\qquad\text{subtract}\ 9x\ \text{from both sides}\\\\5y=-9x-2\qquad\text{divide both sides by 5}\\\\y=\dfrac{-9x-2}{5}$

3 0

2 years ago

3x - 5 = 1/2x + 2x solve the equation and please show your work im confused

Monica [59]

Answer:I searched it up on go

Step-by-step explanation:and I got 5x-5+ x/2

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2 years ago

Solve for x.<br><br> x=<br><br> Look at image

postnew [5]

Answer:

$x = 14$

Step-by-step explanation:

To find x, the following equation is generated given the available information:

$\frac{(x + 7) + x)}{x + 7} = \frac{12 + 8}{12}$

$\frac{2x + 7}{x + 7} = \frac{20}{12}$

$\frac{2x + 7}{x + 7} = \frac{5}{3}$

Cross multiply

$3(2x + 7) = 5(x + 7)$

$6x + 21 = 5x + 35$

Collect like terms

$6x - 5x = - 21 + 35$

$x = - 21 + 35$

$x = 14$

8 0

2 years ago

1 2 3 4 5 6 7 8 9 10

daser333 [38]

<h3>Answer:</h3>

2.25

<h3>Explanation:</h3>

Consider the square ...

... (x+a)² = x² +2ax +a²

The constant term (a²) is the square of half the x-coefficient: a² = (2a/2)².

The x-coefficient in your expression is 3. The square of half that is ...

... (3/2)² = 9/4 = 2.25

Adding 2.25 to both sides gives ...

... x² +3x + 2.25 = 6 + 2.25

... (x +1.5)² = 8.25 . . . . completed square

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2 years ago

Sam is selling used books online. The first book the customer buys is $8.00, the second-third book are $7.00 each, the fourth an

gizmo_the_mogwai [7]

8+7+7+5b is less than or equal to 35

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2 years ago