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polet [3.4K]
3 years ago
6

Which expression is equivalent to 7 3/4 - 1/2 Choose one answer A: 1/2 + 7 3/4 B: 7 3/4 + (-1/2) C: 1/2 + (-7 3/4) D: -7 3/4 + (

-1/2)
Mathematics
2 answers:
Katen [24]3 years ago
8 0

Answer:

D

Step-by-step explanation:

Right in edge2020

umka21 [38]3 years ago
4 0

Answer:

D

Step-by-step explanation:

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the perimeter of a rectangle can be found by using the formula P=21+2w. What is the width of the rectangle if the perimeter is 1
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\begin{gathered} P=2l+2w \\ \text{If l=50 and P=100, then:} \\ 100=2(50)+2w\Rightarrow0=2w\text{ !!!!} \end{gathered}

Since this can't happen, let's suppose that P=150, then:

\begin{gathered} P=2l+2w \\ \Rightarrow150=2(50)+2w \\ \Rightarrow150=100+2w \end{gathered}

Now we have to move the 100 to the other side of the equation with a negative sign to get this:

\begin{gathered} 150=100+2w \\ \Rightarrow150-100=2w \\ \Rightarrow50=2w \end{gathered}

Finally, to get w, we move the 2 that's multiplying to the other side dividing the 50:

\begin{gathered} 50=2w \\ \Rightarrow\frac{50}{2}=w \\ \Rightarrow w=25 \end{gathered}

Therefore, the width of the rectangle would be 25 ft if the perimeter is 150ft, and we can see how the rectangle would look:

6 0
2 years ago
A line that passes through the point (-1,3) has a slope of 2 . find another point on the line
Pie

Answer: (0, 5)

Step-by-step explanation:

Since the slope is 2 that means if we add 2 to the y we have to add 1 to the x value

(-1+1,3+2)

(0,5)

3 0
3 years ago
How many six digit numbers can be created using 8, 0, 1, 3, 7, and 5 if each number is used only once?
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Dang if not digit is used more than once then i go with 720 :)
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There are 46 children at the zoo. Twenty-nine students like popcorn and twenty like peanuts. Fifteen like both. How many student
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Answer:none

Step-by-step explanation:

You must mean 64 instead of 46.Because 29+20+15=64 but none would agree to dislike both popcorn not peanuts.

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