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3 years ago

Does 3/7 , 12/21 make a proportion

Mathematics

2 answers:

RSB [31]3 years ago

6 0

Yes it does hope this helps

RoseWind [281]3 years ago

5 0

Answer:

No, it does not.

Step-by-step explanation:

The question, does 3/7 and 12/21 make a proportion, does not. It does not make a proportion, because for 3 to equal 12, you must multiply by four. when you multiply 7 by 4, you get 28. that is not right. if this explanation is too confusing, i added a picture

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On a linear X temperature scale, water freezes at −115.0°X and boils at 325.0°X. On a linear Y temperature scale, water freezes

belka [17]

Answer:

The current temperature on the X scale is 1150 °X.

Step-by-step explanation:

Let is determine first the ratio of change in X linear temperature scale to change in Y linear temperature scale:

$r = \frac{\Delta T_{X}}{\Delta T_{Y}}$

$r = \frac{325\,^{\circ}X-(-115\,^{\circ}X)}{-25\,^{\circ}Y - (-65.00\,^{\circ}Y)}$

$r = 11\,\frac{^{\circ}X}{^{\circ}Y}$

The difference between current temperature in Y linear scale with respect to freezing point is:

$\Delta T_{Y} = 50\,^{\circ}Y - (-65\,^{\circ}Y)$

$\Delta T_{Y} = 115\,^{\circ}Y$

The change in X linear scale is:

$\Delta T_{X} = r\cdot \Delta T_{Y}$

$\Delta T_{X} = \left(11\,\frac{^{\circ}X}{^{\circ}Y} \right)\cdot (115\,^{\circ}Y)$

$\Delta T_{X} = 1265\,^{\circ}X$

Lastly, the current temperature on the X scale is:

$T_{X} = -115\,^{\circ}X + 1265\,^{\circ}X$

$T_{X} = 1150\,^{\circ}X$

The current temperature on the X scale is 1150 °X.

5 0

3 years ago

Passing through the coordinate (10,12) parallel to y=6

erastova [34]

Answer:

y = 12

Step-by-step explanation:

A line parallel to y = 6 is, like y = 6, horizontal. Such a line passing through (10,12) is y = 12.

7 0

3 years ago

PLEASE HELP ME

shtirl [24]

Answer:

A ✓5 is the irrational number.

Step-by-step explanation:

Have a good day. :)

8 0

2 years ago

Read 2 more answers

Which side lengths form a right triangle?

deff fn [24]

Answer:

Step-by-step explanation:

6^2+8^2=100

sqrt of 100 = 10 so it would form a right triangle

8 0

3 years ago

How many 1/4 cups in 3 1/2 cups

seropon [69]

If you have 3 1/2 cups of something and you want to find how many 1/4 cups there are the you just need to divide 3 1/2 by 1/4
$3 \frac{1}{2} ÷ \frac{1}{4}$
the answer is 14, there are 14 1/4 cups in 3 1/2 cups.
hope I helped :)

6 0

3 years ago