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2 years ago

Help please!! | no links

Mathematics

1 answer:

Dmitry_Shevchenko [17]2 years ago

7 0

Answer:

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Solve b to the second power=77

zubka84 [21]

Answer:

$\large\boxed{b=\pm\sqrt{77}}$

Step-by-step explanation:

$b^2=77\iff b=\pm\sqrt{77}\\\\\text{because}\\\\(-\sqrt{77})^2=77\ \text{and} \ (\sqrt{77})^2=77$

3 0

3 years ago

Select the correct answer from each drop-down menu.

Ivahew [28]

In 20 minutes, John can wrap 10 small boxes and Hank can wrap 12 small boxes. So, Hank can wrap more small boxes in 20 minutes than John can.

Step-by-step explanation:

Given,

John wraps;

2 small boxes = 4 minutes

1 small box = $\frac{4}{2} = 2\ minutes$

In 20 minutes,

20 minutes = $\frac{Total\ time}{Time per box} = \frac{20}{2}$

20 minutes = 10 small boxes

Hank wraps;

3 small boxes = 5 minutes

1 small box = $\frac{5}{3}\ minutes$

In 20 minutes = $\frac{Total\ time}{Time per box} = \frac{20}{5/3}$

$20\ minutes=\frac{20*3}{5}\\20\ minutes=\frac{60}{5}\\20\ minutes= 12\ small\ boxes\\$

In 20 minutes, John can wrap 10 small boxes and Hank can wrap 12 small boxes. So, Hank can wrap more small boxes in 20 minutes than John can.

Keywords: division, multiplication

Learn more about division at:

#LearnwithBrainly

8 0

3 years ago

1plus1 equals? 111111111111111111111111111111111111111111111111111

tamaranim1 [39]

Answer:

Step-by-step explanation:

Hoped this helped!

3 0

3 years ago

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5a + 5b + 5c = −20 <br> 4a + 3b + 3c = −6 <br> −4a + 3b + 3c = 9

PolarNik [594]

Answer:

Step-by-step explanation:

7 0

3 years ago

Use long division to determine the decimal equivalent of 8 over 9

lyudmila [28]

8/9 is equal to in decimal form <span>0.88888889. You do long division. After all number finished add a decimal and add a 0 and bring that down and keep going until you can't divide anymore.</span>

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3 years ago

Read 2 more answers