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Sloan [31]
3 years ago
6

Work out 4/7 + 2 1/3

Mathematics
1 answer:
motikmotik3 years ago
6 0

It's 61/21. That's the answer.

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Which line has an equation of y=-5x+4 in slope-intercept form?
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<span>D: a line passing through the points (2, –6) and (4, –16)</span>
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3. Are these ratios equivalent? 35:28 and 10:8 *
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Reduce each ratio to its minimum expression to find if they are equal.

35:28

\begin{gathered} \frac{35}{28}=\frac{7\cdot5}{7\cdot4} \\ =\frac{5}{4} \end{gathered}

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\begin{gathered} \frac{10}{8}=\frac{2\cdot5}{2\cdot4} \\ =\frac{5}{4} \end{gathered}

Since both ratios reduce to 5:4, they are equivalent.

Another way to check a:b is equivalent to c:d, is that a*d = b*c

In this case, this will be true if 35 times 8 is equal to 10 times 28:

\begin{gathered} 35\cdot8=280 \\ 10\cdot28=280 \end{gathered}

Since both products are equal, then the ratios are equivalent.

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An hourglass, composed of two identical cones, is 12 cm tall. The radius of each cone is 3 cm. If you want to fill the bottom ha
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The volume of a cone is V= (1/3)pi r²h
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and since the two cones are identical so V1=V2=<span>56.52cm^3,
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Perimeter is when you add all the sides together...but oh, no! There are two sides missing! So we have to find it. The horizontal like could be x and the vertical, the y. x would be 3 because one side is 7 and the other side is 4, so if we subtract them, we get 3. Same for the vertical, the y would be 3. (3+3=6)

Now we could add all sides to get the last choice, or 26 cm.
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