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3 years ago

Can somebody please explain how to do this?

Mathematics

2 answers:

erastova [34]3 years ago

6 0

As we already have the value of y,we can put it into another equation.

Here's how we can solve the equation:

y = 2x+48...(1)
y = 8x...(2)

Put (2) into (1)

(8x) = 2x+48
8x-2x = 48
6x = 48
x = 8...(3)

Put (3) into (1)
y = 8(8)
y = 64

Thus, x=8, y+64

Hope it helps!

Inessa [10]3 years ago

3 0

x = -24 + y/2

y = 8x

I hope this helped :)

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Can someone help me Determine the intercepts of the line.

slavikrds [6]

Greetings!

To find the y-intercept, we can arrange the equation in slope y-intercept form:
$y=mx+b$

Rearrange:
$y+1=3(x-4)$

$y+1=3x-12$

$y=3x-13$

The y-intercept is: -13
$\boxed{(0,-13)}$

To find the x-intercept, we can input the value <<0>> in the place of y, as every x-intercept only occurs when y=0:
$(0)=3x-13$

Solve for x:
$0=3x-13$

$13=3x$

$\frac{13}{3}= \frac{3x}{3}$

$x=\frac{13}{3}$

The x-intercept is: $\frac{13}{3}$
$\boxed{(\frac{13}{3},0)}$

I hope this helped!
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3 years ago

7th grade math <br><br><br><br>2 If 40 is decreased by 80%, what is the new amount?

Afina-wow [57]

Answer:

Step-by-step explanation:

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2 years ago

Read 2 more answers

I give you a tricky one Express 108 ×125as a product of prime factors in exponential form

lana [24]

Answer:

$108 \times 125=2^2 \times 3^3 \times 5^3$

Step-by-step explanation:

To express the given product (108 X 125) as a product of prime factors

Step 1: Express each of the numbers as a product of its prime factors.

$108=2^2 \times 3^3\\125=5^3$

Step 2: Write the product together, and combine any like terms if any

Therefore,

$108 \times 125=2^2 \times 3^3 \times 5^3$

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3 years ago

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Dafna1 [17]

Answer

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Step-by-step explanation:

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2 years ago

zzz [600]

Answer:

x = 4

Step-by-step explanation:

A trapezium is a quadrilateral (has four sides and four angles) with one pair of parallel sides. A trapezium is said to be isosceles if the bases are parallel, the two other sides known as the legs are equal and diagonals of the trapezium are equal to each other.

In trapezoid ABCD, BC and AD are the diagonals.

Hence BC = AD (property of isosceles trapezoid)

9x + 1 = 12x - 11

Simplifying:

12x - 9x = 1 + 11

3x = 12

Dividing both sides by 2:

x = 4

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2 years ago