Answer/Step-by-step explanation:
2x-5y=9
Add 5y to both sides of the equation.
2x=9+5y
Divide each term by 2 and simplify.
Divide each term in 2x=9+5y by 2
Cancel the common factor of 2.
Divide x by 1.
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3x+4y=2
Add 4y to both sides of the equation
3x=2+4y
Divide each term by 3 and simplify.
Divide each term in 3x=2+4y by 3.
Cancel the common factor of 3.
Divide x by 1.
Answer:
First one
Step-by-step explanation:
.20 is 20% of 100 and there is 5 boxes and 5 times 20 = 100
The outcomes with neither die showing 2 is 25
<h3>How to determine the outcomes with neither die showing 2?</h3>
The sample sizes of the dice are given as:
Blue die = 6
Red die = 6
The outcomes with neither die showing 2 is
Outcomes = Red die * blue die - (blue die + red die) + 1
So, we have:
Outcomes = 6 * 6 - (6 + 6) + 1
Evaluate
Outcomes = 25
Hence, the outcomes with neither die showing 2 is 25
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The response variable in the study that Ann has done here can be said to be Time spent exercising.
<h3>What is a response variable?</h3>
This is the name that is used to refer to the dependent variable. This is the variable that is of interest in the study. The goal is to see the changes that occurs in the particular variable based on the actions that another variable would have such as the independent variable.
From this we can see that The response variable in the study that Ann has done here can be said to be Time spent exercising.
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