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Mice21 [21]
3 years ago
14

what the error? Sophia said that the expanded from 605,970 is 600, 000 +50,000+900+770.Describe SSophie's error and give the cor

rect answer
Mathematics
2 answers:
makkiz [27]3 years ago
8 0
Sophia's problem was that she put 50,000 instead of 5,000
The 5 is in the thousands place so it should be 5,000
You can skip the ten thousands place because it is a 0
kumpel [21]3 years ago
7 0
The error is that made the 5,000 into 50,000 and made her 70 into 770. The correct answer is 600,000+5,000+900+70
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Phantasy [73]

Answer:

(- 1, - 2 )

Step-by-step explanation:

Given the 2 equations

x - 3y = 5 → (1)

5x - 2y = - 1 → (2)

Rearrange (1) expressing x in terms of y by adding 3y to both sides

x = 5 + 3y → (3)

Substitute x = 5 + 3y in (2)

5(5 + 3y) - 2y = - 1 ← distribute left side

25 + 15y - 2y = - 1

25 + 13y = - 1 ( subtract 25 from both sides )

13y = - 26 ( divide both sides by 13 )

y = - 2

Substitute y = - 2 in (3) for corresponding value of x

x = 5 + (3 × - 2) = 5 - 6 = - 1

Solution is (- 1, - 2 )

8 0
3 years ago
A number line shows the integers from -20 to 20 Describe where you would plot -30 +6.2
Alchen [17]

Answer:

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7 0
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The dimensions of a square are altered so that one dimension is increased by 7 feet, while the other is decreased by 2 feet. The
Kamila [148]

Answer:

the original area is 64ft squared or 169ft squared more perdurable 64  

Step-by-step explanation:

(x-2)(x+7)=90

x^2 +5x -14=90

x^2 +5x -14 -90=90-90

x^2 +5x -104=0

factor it out

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so 8 or -13

4 0
3 years ago
3. Which property justifies rewriting
Maksim231197 [3]
B distributive property
7 0
3 years ago
What is 5^3 simplified? Please answer!!
victus00 [196]

Answer:

125

Step-by-step explanation:

5^3=5*5*5

5*5=25

25*5=125

3 0
3 years ago
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