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3 years ago

What is the simplified expression for 5ab+9ab-ab?

Mathematics

1 answer:

Serggg [28]3 years ago

8 0

The simplified expression should be
ab(5+9-1)
once factorized

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How to do this problem??

lorasvet [3.4K]

We know that the sum of the inner angles of any triangle is 180º

72º + (7x + 3)º + (3x + 5)º = 180º
72º + 7xº + 3º + 3xº + 5º = 180
7xº + 3xº = 180º - 72º - 3º - 5º
10xº = 100º
$x^0 = \frac{100^0}{10^0}$
$x^0 = 10\to\:\boxed{\boxed{x = 10^0}}\end{array}}\qquad\quad\checkmark$

The sum of the external angle (9y + 1)º with inner angle (3x + 5) = 180 °, <span>Replace the measure of "x" found:
</span>
(9y + 1)º + (3x + 5)º = 180º
9yº + 1º + 3xº + 5º = 180º
9yº + 1º + 3.(10)º + 5º = 180º
9yº + 1º + 30º + 5º = 180º
9yº = 180º - 1º - 30º - 5º
9yº = 144º
$y^0 = \frac{144^0}{9^0}$
$y^0 = 16\to\:\boxed{\boxed{y = 16^0}}\end{array}}\qquad\quad\checkmark$

Answer:
<span>The measures of "x" and "y" are respectively: 10º and 16º</span>

6 0

2 years ago

Erica can thoroughly analyze the company’s monthly credit card statements

lbvjy [14]

Answer:

240 minutes or 4 hours

Step-by-step explanation:

So if it takes Erica 80 minutes to analyze the company's monthly credit card statements, she will get 30/80 of it done in 30 minutes.

If it takes Alexa 2 hours to analyze the company's monthly credit card statements, she will get 30/120 of it done in 30 minutes.

Add 15 to each of the fractions because they analyze the company's monthly credit card statements with Mack for 15 more minutes.

So you have 45/80 and 45/120.

Now add both fractions by finding the lowest common denominator which is 240.

135/240 + 90/240 = 225/240

So Mack did the remaining 15/240.

Now to find how long it would take him to analyze the company's monthly credit card statements by himself divide 240 by 15 which is 16.

Then multiply

15 x 16 = 240

so it would take him 240 minutes or 2 hours.

3 0

3 years ago

I need help on this- nothing is right for me

tresset_1 [31]

Answer:

5. Area = 28.5 cm; 6. Area = 544,500 cm

Step-by-step explanation:

Area = Length×Width

5. You have to convert the mm to cm by dividing the mm by 10. Then just multiply the length and width.

6. Same thing; different unit, convert the m to cm (or vice versa, not sure which unit you need to answer in) and multiply the length and width.

7 0

2 years ago

Read 2 more answers

Steven has a rectangular rug with a perimater of 16 feet the width of the rug is 5 feet what is the lenght if the rug

ziro4ka [17]

If the width is 5 feet you have to do 16 - 5 which equals 11 meaning 11 is your answer (the Length)

hope this helps
:)

5 0

3 years ago

Rhonda uses a pan balance and metric weights to measure the masses of two large books.

Vsevolod [243]

The book has the greater mass is book A and It is 60 grams greater.

<h3>The book with the greater mass?</h3>

The table of values is given as;

1-kilogram 500-gram 100-gram 10-gram

Book A 1 0 7 4

Book B 0 3 1 8

The weights of the books are calculated as:

Book A = 1 * 1kg + 0 * 500g + 7 * 100g +4 * 10g = 1740 g

Book B = 0 * 1kg + 3 * 500g + 1 * 100g +8 * 10g = 1680 g

1740 is greater than 1680 by 60

This means that the book has the greater mass is book A and It is 60 grams greater.