All categories

3 years ago

A system of equations has 1 solution. If 4x – y = 5 is one of the equations, which could be the other equation?

Mathematics

1 answer:

postnew [5]3 years ago

8 0

Answer:

D: 2y = 8x - 10

Step-by-step explanation:

A: y = 4x + 5. This has a slope of -4 Yes it could work.

B: y = 4x - 5. No It does not work

C: 2y = 8x - 10. The slope is 8/2 = 4. So No it could not work.

D: -2y = 8x - 10. The slope is 8/-2 = -4. Yes This Does work! :)

You might be interested in

Katie's deli can make 60 sandwiches in 4 hours. Stacy's can make double that in the same amount of time. How many sandwiches can

VikaD [51]

Answer:

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Brendon sells tires at the local auto parts store. He told a customer that the tire width for a new tire was 21.5 centimeters. W

fenix001 [56]

Answer:

215 mm

Step-by-step explanation:

1 cm = 10 mm

21.5 cm * (10 mm)/(1 cm) = 215 mm

Answer: 215 mm

3 0

3 years ago

Which statement best describes the electric field around a positive charge?

horrorfan [7]

Answer:

C. Lines with arrows that point outward radiate from the charge in all

directions.

6 0

2 years ago

Read 2 more answers

The population of bacteria can be modeled by the function below, where t represents the time since the population started decayi

Oksana_A [137]

Answer:

See Explanation

Step-by-step explanation:

The question is incomplete. I will assume the function is:

$f(t) = 15(0.86)^t$

Required

Determine the rate of decay

In an exponential function $f(x) = ab^x$ ,

The decay rate of the function is calculated as:

$1 - r = b$

By comparison:

$b = 0.86$

So, the equation becomes:

$1 - r = 0.86$

Make r the subject

$r = 1 - 0.86$

$r = 0.14$

The rate of decay is 0.14

3 0

3 years ago

make m the subject!

Xelga [282]

How to:
a+b-mx=0
a+b=mx
(a+b)/x=m

7 0

1 year ago