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Natali [406]
4 years ago
8

Which are the coordinates of the x-intercept in the equation −4x+5y=20 ?

Mathematics
1 answer:
elena-14-01-66 [18.8K]4 years ago
4 0

Answer: (-5,0)

Step-by-step explanation:

-4x + 5y = 20   the x intercept is when y is zero so input zero into the equation and solve for x.

-4x + 5(0) = 20

-4x = 20

x = -5  

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Multiply secondsn by 60 add to minutes multiply by 60 and to degrees
5 0
3 years ago
Jason volunteered at the pet shelter twice as many times as keith. Noah volunteered three times more often than jason. Keith vol
Alchen [17]

Answer:

y = 6\cdot z

y - Number of times that Noah volunteered at pet shelter.

z - Number of times that Keith volunteered at pet shelter.

Step-by-step explanation:

After reading the statement of the problem, the following variables are described below:

x - Number of times that Jason volunteered at pet shelter.

y - Number of times that Noah volunteered at pet shelter.

z - Number of times that Keith volunteered at pet shelter.

The following two relations are presented herein:

Noah and Jason

y = 3\cdot x

Jason and Keith

x = 2\cdot z

The relationship between the number of times Noah and Keith volunteered is:

y = 6\cdot z

7 0
3 years ago
A group of 8 friends (5 girls and 3 boys) plans to watch a movie, but they have only 5 tickets. If they randomly decide who
nalin [4]

Answer:

53.57%

Step-by-step explanation:

We have to calculate first the specific number of events that interest us, if at least 3 are girls, they mean that 2 are boys, therefore we must find the combinations of 3 girls of 5 and 2 boys of 3, and multiply that, so :

# of ways to succeed = 5C3 * 3C2 = 5! / (3! * (5-3)!) * 3! / (2! * (3-2)!)

 = 10 * 3 = 30

That is, there are 30 favorable cases, now we must calculate the total number of options, which would be the combination of 5 people from the group of 8.

# of random groups of 5 = 8C5 = 8! / (5! * (8-5)!) = 56

That is to say, in total there are 56 ways, the probability would be the quotient of these two numbers like this:

P (3 girls and 2 boys) = 30/56 = 0.5357

Which means that the probability is 53.57%

8 0
3 years ago
Luzon has 8 fish, 3 cats, and 2 dogs. Write two equivalent expressions using the Associative Property that can be used to find t
ohaa [14]
8 + 3 + 2 = 13 I hope this helps
8 0
3 years ago
How to solve -5+7|5x-3|= 37
nata0808 [166]

Solve for  x  by simplifying both sides of the equation, then isolating the variable.

Exact Form would be or look like

x=9/5, -3/5

5 0
4 years ago
Read 2 more answers
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