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3 years ago

1/8 plus 3/4: plz tell me I need help

Mathematics

2 answers:

xenn [34]3 years ago

6 0

The answer should be 7/8

Anvisha [2.4K]3 years ago

3 0

Answer:

7/8

Step-by-step explanation:

Find the common denominator:

4 and 8 are both the least common multiple of 8.

So that would be the common denominator.

To get 3/4 to become a fraction of 8, you would multiply both 3 and 4 by 2.

$\frac{1}{8} + \frac{3}{4} = \frac{1}{8} + \frac{6}{8} = \frac{7}{8}$

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The sides of an oblong are in the ratio of 4:3. The oblong has a length of 12 cm and is increased by a scale factor of 2.5. What

Aleksandr [31]

Answer:

If the scale factor is increased in 2.5, the increased width will be:

22.5 cm

Step-by-step explanation:

Remember that an oblong is longer than it is wide, by this reason, the ratio of 4:3 could mean, if we give a number, by each 4 cm in the length, there is 3 cm in the width, in this form, if the oblong has a length of 12 cm, the width is:

4 cm ⇒ 3 cm
12 cm ⇒ x

So:

$x=\frac{12 *3}{4}$
$x=\frac{36}{4}$
$x=9$

Then, the original width is 9 cm, as the scale factor must be increased 2.5, we can multiply the found width to obtain the increased width:

Increased width = 9 cm * 2.5
Increased width = 22.5 cm

As you can see, the increased widt will be 22.5 cm.

4 0

3 years ago

I need the solution and the work for it... for each of the multiple choices.

Vlad1618 [11]

For this case we have the following equation:

$x ^ 3 = 375$

We must find the value of "x":

We apply cube root on both sides of the equation to eliminate the exponent:

$x = \sqrt [3] {375}$

We can write 375 as $5 ^ 3 * 3$

So:

$x = \sqrt [3] {5 ^ 3 * 3}\\x = 5 \sqrt [3] {3}$

Then, the correct options are:

$x = \sqrt [3] {375}\\x = 5 \sqrt [3] {3}$

Answer:

Option A and B

8 0

3 years ago

What is the radius of the circle whose equation is x^2 + y^2 = 8

gogolik [260]

√8

for the equations of circles: x²+y²= (radius)²

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What is the result of an increase by 2/3

velikii [3]

Answer:

y=1.6 repeatin

Step-by-step explanation:

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3 years ago

Read 2 more answers

What can we say about the given figure?

ikadub [295]

Answer:

It's a parallelogram, angles B and D, and A and C are congruent, lines AB and DC, and BC and AD are congruent.

Step-by-step explanation:

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3 years ago