3 years ago

Determine whether (7,8) is a solution of 7x+9y=11

Mathematics

1 answer:

Anna35 [415]3 years ago

6 0

Answer:

(7, 8) is NOT a solution to the equation

Step-by-step explanation:

x = 7 and y = 8 so fill those into the equation

7(7) + 9(8) = 11

49 + 72 = 11

121 = 11

this makes the equation NOT true

So no, (7, 8) is NOT a solution to the equation

You might be interested in

Based on the quadratic model, what was the approximate number of workers that were hired during the seventh year?

IrinaVladis [17]

You need to show quadratic model, in order for me to answer.

7 0

3 years ago

What is the solution of 3x+8/x-4 greater than or equal to 0

DochEvi [55]

Answer:

x ≥ -2 2/3

Step-by-step explanation:

multiply each side by x-4, you get:

3x + 8 ≥ 0

3x ≥ -8

x ≥ -8/3

6 0

3 years ago

The figure is made up of a cylinder and a cone.

wlad13 [49]

Answer:

The total volume = 160.29

Step-by-step explanation:

Kindly refer the attatchment.

3 0

3 years ago

Read 2 more answers

The variable y is directly proportional to the variable x. If y = 9 when x = 5, what is the value of y when x = 20?

andreev551 [17]

Rise over run is y over x. 9/5 is 1.8 you have x=20 i plugged in all numbers and when i plugged in 36 i got 1.8 so im sure the answer is D)36

8 0

4 years ago

Read 2 more answers

Given the following function, determine f(6).

IgorC [24]

I’m pretty sure that its 5

3 0

3 years ago

Determine whether (7,8) is a solution of 7x+9y=11​

Determine whether (7,8) is a solution of 7x+9y=11