Find the value of b. A. 9.8 B. 17.9 C. 4.1 D. 96.2

Which graph can be used to find the solution(s) to 8 – 4x = 2x – 4?

ryzh [129]

Answer:

To find the solutions to the system of equations we need to graph the following equations:

y = 8 - 4x (Red line)

y = 2x - 4 (Blue line)

The point of interception, is the solution to the system of equations.

By looking at the graph attached, you can see that the point of itersection is at (2,0)

7 0

3 years ago

The Unisphere is the world's largest man-made globe. It was built as the symbol of the 1964-1965 New York World's Fair. A sphere

Xelga [282]

$\bf \textit{surface area of a sphere}\\\\
A=4\pi r^2\qquad 
\begin{cases}
r=radius=\frac{diameter}{2}\\
diameter=2r\\
----------\\
A=45,239
\end{cases}\implies 45,239=4\pi r^2$

solve for "r", to see what the radius is

keep in mind that, the diameter is just "2r"

5 0

3 years ago

Solve each problem by working backward.

OLEGan [10]

Answer: X= 4/3 I hope this helps:)

Step-by-step explanation:

(3x ). • 4= 16

divide by 4

3x = 4

divide by 3

x= 4/3

3 0

3 years ago

Read 2 more answers

3. A restaurant bill of $350 was paid using $5 notes and $50 notes. The total number of

Sonbull [250]

The number of $5 notes is 10 and $50 notes is 6

Step-by-step explanation:

Let x be the number of $5 notes

and

y be the number of $50 notes

Then according to given statements

"The total number of notes used was 16."

x+y=16 Eqn 1

"A restaurant bill of $350 was paid using $5 notes and $50 notes."

5x+50y=350 Eqn 2

$From\ Eqn\ 1\\x+y=16\\y=16-x\\Putting\ y=16-x\ in\ equation\ 2\\5x+50(16-x)=350\\5x+800-50x=350\\-45x+800=350\\Subtracting\ 800\ from\ both\ sides\\-45x+800-800=350-800\\-45x=-450\\Dividing\ both\ sides\ by\ -45\\\frac{-45x}{-45}=\frac{-450}{45}\\x=10$