1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
romanna [79]
3 years ago
5

Which ordered pair is a solution to the equation 3x + 5y = 9?

Mathematics
1 answer:
Inessa05 [86]3 years ago
5 0
To figure out which ordered pair is a solution to the equation 3x + 5y = 9, substitute the coordinates of each answer choice into the equation. Remember that coordinates are written as (x, y) where the first number in the parentheses is x in the equation and the second number is y in the equation.

A. (-2, -3)
x = -2, y = -3
Substituting into the equation gives
3(-2) + 5(-3) = 9
-6 - 15 = 9
-21 = 9

This does not satisfy the equation, so (-2, -3) is not a solution.

B. (2, 3)
x = 2, y = 3
3(2) + 5(3) = 9
6 + 15 = 9
21 = 9

21 does not equal 9; therefore (2, 3) is not a solution.

C. (-2, 3)
x = -2, y = -3
3(-2) + 5(3) = 9
-6 + 15 = 9
9 = 9

This satisfies the equation, so (-2, 3) is a solution.

D. (2, -3)
x = 2, y = -3
3(2) + 5(-3) = 9
6 - 15 = 9
-9 = 9

This does not satisfy the equation; therefore (2, -3) is not a solution.
You might be interested in
Fill in the blanks<br> 3:4 = 6:_ = 9:_ = _:16 = _:20 = 18:_?????
Virty [35]

3:4 = 6:8 = 9:12 = 12:16 = 15:20 = 18:24

3 0
3 years ago
I need a percentage, and 60 doesn't work. Please help!
alukav5142 [94]

The probability that you will wait for at most 5 seconds is 6.7%

<h3>How to determine the probability?</h3>

The given parameters are:

Green = 40

Yellow = 5

Red = 30

When you spend a maximum of 5 seconds, it means that you get to the traffic light at the yellow cycle.

The probability is then calculated as:

P(Yellow) = 5/(40 + 5 + 30)

Evaluate

P(Yellow) = 6.7%

Hence, the probability that you will wait for at most 5 seconds is 6.7%

Read more about probability at:

brainly.com/question/15246027

#SPJ1

5 0
2 years ago
I really need some help. I need to find the inverse of this equation in the picture below. Thanks!
serg [7]

Answer:

y=81x^4+648x^3+1944x^2+2592x+1289

Step-by-step explanation:

1. Interchange x and y.

  • y=\frac{\sqrt[4]{x+7}}{3}-2
  • x=\frac{\sqrt[4]{y+7}}{3}-2

2. Then solve x=\frac{\sqrt[4]{y+7}}{3}-2 for y.

3. y=81x^4+648x^3+1944x^2+2592x+1289

I hope this helps.

4 0
3 years ago
PLEASE HELP MEEEEE<br><br><br> &lt;3
Svetradugi [14.3K]

Answer:

The second choice is correct.

Step-by-step explanation:

The softball cannot be anything under 180 grams because that would go past the ten gram limit. As well as the ball cannot go any higher than 200 grams.

8 0
3 years ago
Chuck and Dana agree to meet in Chicago for the weekend. Chuck travels 104 miles in the same time that Dana travels 96 miles. If
Yanka [14]

Answer: Chuck's travel at a rate of 52mph

Step-by-step explanation:

For Chuck's trip:

D=RT

104= (R+4)T

T= 104 / (R+4)

For Dana's trip:

96 = RT

T= 96/R

Set both equation for Chuck's and Dana together

104/(R+4) =96/R

Then we cross multiply

96(R+4) = 104R

96R + 384 = 104R

104R - 96R = 384

8R = 384

To get R, divide both side by 8

8R/8 = 384/8

R= 48mph

This means Dana's speed is 48mph

Chuck's speed will be: 48mph+4mph = 52mph

3 0
3 years ago
Other questions:
  • What is a solid figure that has three pairs of parallel faces and all faces are congruent
    8·1 answer
  • What is the highest factor of 15 and 20​
    14·2 answers
  • The goals against average (A) for a professional hockey goalie is determined using the formula A=60(g/2). In the formula, g repr
    6·2 answers
  • For a LOT OF POINTS answer this question.
    7·2 answers
  • Appples are on sale for 1.99 a pound sheila buys p pounds of apples for a total cost of c dollars
    7·2 answers
  • Someone please help
    15·1 answer
  • 2. The distance by road from Newport to London is 140 miles. Tom travels by coach from Newport to London. The coach leaves Newpo
    6·1 answer
  • 72 millimeters to 3 meters
    11·1 answer
  • Calculate volume with fractional edge lengths
    5·1 answer
  • PLS HELP ASAP THANKS ILL GIVE BRAINLKEST PLS THANKS PLS ASAP PLS PLS
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!