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madreJ [45]
3 years ago
15

(25 points!!) When must a system of linear equations be solved algebraically, not graphically? please help :)

Mathematics
1 answer:
Jobisdone [24]3 years ago
5 0
A system of linear equations that must be solved algebraically is when numbers are very large or very small or when those that have to be accurate to several decimal places which is hard to graph.
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Write 17,390,000 in expanded form
scoray [572]

Answer:

The expanded form is:

17,390,000 = 10,000,000 + 7,000,000 + 300,000 + 90,000

Step-by-step explanation:

<em>Expanded form is a way of writing numbers with the mathematics value of digits.</em>

Ex: 7,327 in expanded form is 7,000 + 300 + 20 + 7 = 7,327

<em>So you can write any number in expanded form by adding the values of its digits places</em>

<em>Let us solve the question</em>

The number is 17,390,000

∵ The first digit 1 is in ten-millions place

∴ Its value = 10,000,000

∵ The second digit 7 is in the millions place

∴ Its value = 7,000,000

∵ The third digit 3 is in the hundred-thousands place

∴ Its value = 300,000

∵ The fourth digit 9 is in the ten-thousands

∴ Its value = 90,000

Add all of them

∴ 17,390,000 = 10,000,000 + 7,000,000 + 300,000 + 90,000

The expanded form is

17,390,000 = 10,000,000 + 7,000,000 + 300,000 + 90,000

7 0
3 years ago
Four different sets of objects contain 4, 5, 6, and 8 objects, respectively. How
andreyandreev [35.5K]

Answer:

960

Step-by-step explanation:

We can find the number of unique combinations by

Multiplying 4*5*6*8

960

There are 960 possible choices  by picking 1 from each group

3 0
4 years ago
Why is y=-12.5x have a proportional relationship
Natalka [10]

Answer:

A proportional relationship is any relationship that stays constant. since both sides of the equation do not change, this is a proportional relationship

8 0
3 years ago
Rebekah used a total of 144 tiles to make 4 placemats. She used 32 tiles each to make two placemats and y tiles to make the thir
valkas [14]

Answer:

POG

Step-by-step explanation:

POGGERS

8 0
3 years ago
paula spent 3/8 of her allowance on education and 1/6 on entertainment. What fraction of her allowance did she spend on other it
Andrews [41]
3/8 = 9/24
1/6 = 4/24
9+4=13
13/24
24-13 = 
11/24

She spent 11/24 of her allowance on other items
5 0
3 years ago
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