2 years ago

What is the answer to x=3x-20 and y=-6+30

Mathematics

1 answer:

NISA [10]2 years ago

5 0

Answer:y=24 and x=10

Step-by-step explanation:

To find the value of x and y in x=3x-20 and y=-6+30

We gets

y=24

To get x

x=3x-20

Collect like terms

x-3x=-20

Divide through by -2

-2x=-20

x=10

You might be interested in

Help please this math is hard just number 3 the one that has no writing

Colt1911 [192]

You actually have most of the answers correct.
E is the origin
D is the x axis
A is the y axis
B is at coordinates (1, 3)
C is at coordinates (3, 1)
*remember you go across on the graph x axis and then up y axis.

6 0

3 years ago

Find the area of a triangle with a base of 10 meters and a height of 6 meters

Deffense [45]

A = (1/2)bh [b = 10 m, h = 6 m]

A = (1/2) * 10 * 6 = 30 m²

5 0

3 years ago

Read 2 more answers

Karl is putting a frame around a rectangular photograph. The photograph is 14 inches long and 10 inches wide, and the frame is t

Sergeu [11.5K]

<h2>The area of the framed photograph = 1156 $inch^{2}$ </h2>

Step-by-step explanation:

Given,

The length of photograph (l) = 14 inches and

The breadth of photograph (b) = 10 inches

To find, the area of the framed photograph = ?

We know that,

The area of the framed photograph = (l + 2b)(l + 2b)

= (14 + 2 × 10) (14 + 2 × 10) $inch^{2}$

= (14 + 20) (14 + 20) $inch^{2}$

= (34) (34) $inch^{2}$

= 1156 $inch^{2}$

∴ The area of the framed photograph = 1156 $inch^{2}$

8 0

3 years ago

Lab tests of a new drug indicate a 70% success rate in completely curing the targeted disease. The doctors at the lab created th

Katyanochek1 [597]

Answer: 30%?

Step-by-step explanation:

7 0

2 years ago

5x² + 4x - 20 = 0<br> Solve this using the quadratic formula

Natali [406]

Here's the answer, using the quadratic formula

8 0

3 years ago