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3 years ago

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On the way home from school, ross wears his 20-pound backpack and carries his 7-ounce lunchbox. how many ounces does he carry in

total?

2 answers:

Natalija [7]3 years ago

6 0

327, because there is 16 ounces in every pound.

NeTakaya3 years ago

4 0

Answer: $327$ $\text{ounce}$

Step-by-step explanation:

Given: On the way home from school, ross wears his $20$ pound backpack and carries his $7$ ounce lunchbox.

To Find: how many ounces does he carry in total.

Solution:

Weight of Ross's backpack $=20$ $\text{pound}$

Weight of Ross's lunchbox $=7$ $\text{ounce}$

Now,

As unit of weight of backpack and lunchbox is different, we need to convert it.

$1$ $\text{pound}$ $=16$ $\text{ounce}$

Now weight of backpack is $=\text{weight in pound}\times16$

$20\times16$

$320$ $\text{ounce}$

Total ounces carried by Ross $=\text{weight of backpack}+\text{weight of lunchbox}$

$320+7$ $\text{ounce}$

Hence Total ounce carried by Ross is $320+7$ $\text{ounce}$

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1) $(-2x+4)+(x-6)$ is simplified into $=-x-2$

2) $(uv-3)+(4uv+1)$ is simplified into $5uv-2\\$

3) $(11x-8)-(2x+3)$ is simplified into $-9x-11$

4) $(x^2-4)-(x-2)$ is simplified into $x^2-x-2$

5) $(12-3t-7t^2)+(1+3t-t^2)$ is simplified into $-8t^2+13$

Step-by-step explanation:

We need to solve the polynomials.

1) $(-2x+4)+(x-6)$

Solving:

$(-2x+4)+(x-6)\\=-2x+4+x-6\\Combining\,\,like\,\,terms:\\=-2x+x+4-6\\=-x-2$

So, $(-2x+4)+(x-6)$ is simplified into $=-x-2$

2) $(uv-3)+(4uv+1)$

Solving:

$(uv-3)+(4uv+1)$

Expanding:

$=uv-3+4uv+1\\Combining\,\,like\,\,terms:\\=uv+4uv-3+1\\=5uv-2\\$

So, $(uv-3)+(4uv+1)$ is simplified into $5uv-2\\$

3) $(11x-8)-(2x+3)$

Solving:

$(11x-8)-(2x+3)$

Expanding:

$=11x-8-2x-3\\Combining\,\,like\,\,terms:\,\,\\=11x-2x-8-3\\=-9x-11$

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Solving:

$(x^2-4)-(x-2)$

Expanding:

$=x^2-4-x+2\\Combining\,\,like\,\,terms:\\=x^2-x-4+2\\=x^2-x-2$

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Solving:

$(12-3t-7t^2)+(1+3t-t^2)$

Expanding:

$=12-3t-7t^2+1+3t-t^2\\Combining\,\,like\,\,terms:\\=12+1-3t+3t-7t^2-t^2\\=13+0t-8t^2\\=-8t^2+13$

So, $(12-3t-7t^2)+(1+3t-t^2)$ is simplified into $-8t^2+13$

Keywords: Solving Polynomials

Learn more about solving Polynomials at:

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