Answer:
none of them.
Step-by-step explanation:
The substitution property of equality explains that one value can replace another value in an expression or equation and the value will remain the same.
In other words if x + y = 7 and y = 5. Then I can rewrite the first statement as x + 5 = 7.
which can be solved to get x = 2. I just used the substitution property.
The first choice is the multiplicative identity property. Multiplying an expression by 1 gives the same result.
The second and third choices are wrong since 13 is not equal to 14 and neither is 13 equal to 6
The fourth choice is the additive identity property since adding zero to an expression gives the same result.
Good Luck!
Hello!
As you can see,this triangle has a 97° angle, which means it is obtuse. As you can see, all of the lines are different lengths, so it is scalene.
Therefore, our answer is B) obtuse, scalene.
I hope this helps!
I'd go with 2,000
but if it says anything about estimating to a different place it could be different.
Answer:
The letter D represents 3.25. this is because on the number line, the dot for the D is placed 2 lines and a little more, making it the closest to 3.25
The percentage of students who spend less than 4 hours a week on screens which reported a grade average below 80 is 50%
Given, we have the report representing children spending time online, on social media or watching T.V, which has there effect on there grades as above or below 80.
By the question we know that the number of students who spends less than 4 hours a week on screen is:
9 + 9
= 18
And among the 18 students there are 9 students whose grade average is below 80.
So the percentage of the students who spends 4 hours a week on screen is:
= 9 ÷ 18 × 100%
= 100/2
= 50%
hence 50% students spend less than 4 hours a week on screens.
Learn more about Percentage here:
brainly.com/question/843074
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