lesliejmckenna
lesliejmckenna lesliejmckenna
  • 02-08-2019
  • Mathematics
contestada

Determine which point is the solution to the given system.
y = -4/7x + 16
y = -2/7x + 12

A. (16, 1)
B. (21, 4)
C. (7, 12)
D. (14, 8)

Respuesta :

TaeKwonDoIsDead
TaeKwonDoIsDead TaeKwonDoIsDead
  • 03-08-2019

Answer:

D

Step-by-step explanation:

We equate both the y's and solve for x algebraically:

[tex]-\frac{4}{7}x+16=-\frac{2}{7}x+12\\16-12=-\frac{2}{7}x+\frac{4}{7}x\\4=\frac{2}{7}x\\x=\frac{4}{\frac{2}{7}}\\x=14[/tex]

Now taking the value x= 14 and putting it in the 1st equation would give us y:

[tex]y=-\frac{4}{7}x+16\\y=-\frac{4}{7}(14)+16\\y=8[/tex]

Hence the solution is (14,8), answer is D

Answer Link

Otras preguntas

what is 27cm added to 1m 80cm
40 girls and boys have planned for annual function. They are in a ratio of 2 girls to 6 boys. How many boys are there?
an ant sits on the back of a mouse. The mouse carries the ant across the floor for a distance of 10 meters. Was there work done by the mouse
The theme of this passage from the Declaration of Independence is best described as: (5 points) connections and correspondence were interrupted many attempts we
sales £18,500.00 staff £3367. what is this as a percentage
describe the basic particle from which all elements are made
In their colonies, the French practiced indirect rule, relying on native princes and local troops. True or False?
the bottom of a shopping bag measures 8 inches by 10 inches. th bag has a height of 12 inches. how much paper is needed to make the bag? A:256 in^2 B: 296 in^2
What was the most influential religion in the Songhai Empire?.
What is a characteristic of maps of very large areas?