What Is Least Common Multiple Of 5 and 9

Mathematics

2 answers:

Semmy [17]2 years ago

7 0

Answer:

lcm would be 45

Step-by-step explanation:

you have to seperate the numbers when your grouping them

muminat2 years ago

6 0

Answer: 45

Step-by-step explanation: just multiply the two number together

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3) John has decided to invest his $20,000 in two saving accounts. He decides to invest some of it at 4.5% annual interest and th

Elza [17]

The amount he invested in the account that yields 4.5% interest is $7,500.

The amount he invested in the account that yields 2.5% interest is $12,500.

<h3>What is the system of equations that represent the question?</h3>

a + b = $20,000 equation 1

0.045a + 0.025b = $750 equation 2

Where:

a = amount he invested in the account that yields 4.5% interest

b = amount he invested in the account that yields 2.5% interest

<h3>How much was invested in the account that yields 4.5% interest?</h3>

Multiply equation 1 by 0.025

0.025a + 0.025b = 500 equation 3

Subtract equation 3 from 2

250 = 0.02a

a = 12,500

<h3>How much was invested in the account that yields 4.5% interest?</h3>

Subtract 12,500 from 20,000

20,000 - 12,500 = $7,500

To learn more about simultaneous equations, please check: brainly.com/question/25875552

7 0

1 year ago

I need help hurry please

PolarNik [594]

Answer:

Step-by-step explanation:

For this question the answer will be b

Hope this helps and hope u pass test

7 0

2 years ago

True or false the area of a regular heptagon can be found by breaking the heptagon into seven congruent triangles and then takin

creativ13 [48]

Answer: The answer is true.

Step-by-step explanation: The given statement is :

" The area of a regular heptagon can be found by breaking the heptagon into seven congruent triangles and then taking the sum of their areas".

We are to check its is true or false.

In the attached figure, a regular heptagon ABCDEFG is drawn. Sine the heptagon is regular, so all its sides are equal and all its angles are also equal. So, we can break the heptagon into seven congruent triangles 1, 2, 3, 4, 5, 6 and 7 taking 'O' as the centre of the heptagon.

Finding the areas of these seven triangles and taking the sum will result in the area of the heptagon ABCDEFG.

Thus, the given statement is "TRUE".