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2 years ago

Explain why -10 x -10 is 100

Mathematics

2 answers:

Nana76 [90]2 years ago

8 0

Step-by-step explanation:

To multiply a number by 100, move all of its digits two places to the left. Multiplying a whole number by 100 is the same as adding two zero digits to the end of the number. To multiply a number by 100, all digits of this number move two place value columns to the left

tangare [24]2 years ago

7 0

Answer:

-10 x -10 is 100

Step-by-step explanation:

Even though both numbers are negative, the rule when multiplying negative numbers is that if you multiply 2 negative numbers, you would get a positive.

<em>-kiniwih426</em>

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I had a summer job cooking two items at a bbq place. I sell burgers for $9.00 and sell chicken sandwiches for $11.25. Because I

pishuonlain [190]

Answer:

He sold 180 chicken sandwiches and 150 burguers.

Step-by-step explanation:

Since 330 items were sold, then the amount of burguers and chicken sandwiches sold must be equal to this value. From this information we have:

burguers + sandwiches = 330

We know that each burguer cost $9 and each chicken sandwich cost $11.25 and that we made a total of $3,375. So we have:

9*burguers + 11.25*sandwiches = 3,375

From the first equation we have:

burguers = 330 - sandwiches

Applying it on the second equation:

9*(330 - sandwiches) + 11.25*sandwiches = 3,375

2,970 - 9*sandwiches + 11.25*sandwiches = 3,375

2.25*sandwiches = 3,375 - 2,970

2.25*sandwiches = 405

sandwiches = 405/2.25 = 180

So,

burguers = 330 - 180 = 150

He sold 180 chicken sandwiches and 150 burguers.

8 0

3 years ago

What is the area of the figure?

mash [69]

Answer:

Explanation is given in the above photo.

5 0

3 years ago

Read 2 more answers

the equation a equals 1 half b h, where b represents base and h represents height, is used to find the area of a .

NikAS [45]

The formula for b from the given area is equal to (2A / h).

As given in the question,

Formula to find area of a triangle is equal to A = (1/2) b h

b represents the base of the triangle

h represents the height of the triangle

A = (1/2) b h

Multiply both the side by 2 in area formula

2A = b h

Divide both the side by h

b = (2A) / h

Therefore, the formula for b from the given area is equal to (2A / h).

The complete question is:

The formula A = (1/2)b h represents the area of a triangle where A represents the area, b is the base of the triangle and h is the height of the triangle. 1. Solve this formula for b.

Learn more about area here

brainly.com/question/27683633

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2 years ago

What can you tell about a triangle when given three side lengths?

Genrish500 [490]

Check whether it is possible to have a triangle with the given side lengths for example 7,9,13 then add any two sides and see if it is greater than the other side. Example the sum of 7 and 9 is 16 and 16 is greater than 13

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3 years ago

If you get $2,000 for graduation gifts and invest it in an account that earns 1.5% interest

Eduardwww [97]

Answer:

It is VERY important to use the attached formula.

Years = ln (Total / Principal) / rate

Years = ln (6,000 / 2,000) / rate

Years = ln (3) / rate

Years = 1.0986122887 / .015

Years = 73.24 years

This takes a LONG time because the interest rate is extremely low.

Step-by-step explanation:

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3 years ago