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3 years ago

How can you isolate the variable in x-3 = 7

Mathematics

1 answer:

anzhelika [568]3 years ago

3 0

Answer:

x = 10

Step-by-step explanation:

To isolate the variable (x) you would first write out x - 3 = 7. Now to make x on its own we have to get rid of the -3 so to do that we would add the reciprocal of -3 (or the opposite) which is +3. x - 3 + 3 = 7 + 3 or x = 10.

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52 If 169 289 , then the value of x is: 58 Ο Ο b. 52 o c. 68

Sav [38]

Answer:

Sorry,didn't understand your question..

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4 years ago

Divide £42 in the ratio 4:3

skelet666 [1.2K]

Answer:

24:18

Step-by-step explanation:

Let x be the constant of proportionality...

Hence,

4x+3x=42

7x=42

x=6

Hence,

24:18 is your answer

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3 years ago

What Is The Missing Angle Measure of This Irregular Quadrilateral

ioda

Answer:

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Step-by-step explanation:

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4 years ago

Esme read 12 pages from her science book last night, and it took her 18 minutes. How long will it take her to read tonight's hom

aniked [119]

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3 years ago

A restaurant uses 4.375 pounds of cheese for every pizzas. At this rate, how many pounds of cheese are used per pizza?

faltersainse [42]

Complete Question:

A restaurant uses 4.375 pounds of cheese every 8 and 3/4 pizzas. At this rate how many pounds of cheese are used per pizza?

Answer:

0.5 pounds of cheese are used per pizza

Solution:

Given that,

A restaurant uses 4.375 pounds of cheese every 8 and 3/4 pizzas

Therefore,

$4.375\ pounds = 8\frac{3}{4}\ pizza \\\\4.375\ pounds = \frac{35}{4}\ pizza$

We have to find pounds used per pizza

Let "x" be the pounds used per pizza

Then,

$4.375\ pounds = \frac{35}{4}\ pizza \\\\x\ pounds = 1\ pizza$

By cross multiplying,

$4.375 \times 1 = x \times \frac{35}{4} \\\\x = 0.5$

Thus, 0.5 pounds of cheese are used per pizza

8 0

3 years ago