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dlinn [17]
3 years ago
14

Today, we use algebraic tools such as writing and solving equations, systems of equations, inequalities, and systems of inequali

ties to help us measure and interpret real-world scenarios. What twenty-first century tasks do these tools help us manage?
Mathematics
1 answer:
alexgriva [62]3 years ago
4 0

Answer:

We may be considering a purchase—for example, trying to decide whether it's cheaper to buy an item online where you pay shipping or at the store where you do not. Or you may wish to join a CD music club, but aren't sure if you would really save any money by buying a new CD every month in that way. Or you might be considering two different phone contracts.

Step-by-step explanation:

i entered this into my online hw and my teacher gave me a 100.

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Devaughn is 15 years younger than Sydney. The sum of their ages is 73. What is Sydney’s age?
Olegator [25]

Answer:

Sydney is 44 years old

Step-by-step explanation:

<u>Step 1:  Make a system of equations </u>

d = s - 15

<em>d + s = 73 </em>

<u>Step 2:  Plug in s - 15 for d in the second equation and solve </u>

s - 15 + s = 73

2s - 15 = 73 + 15

2s  / 2= 88 / 2

<em>s = 44 </em>

Answer:  Sydney is 44 years old

6 0
3 years ago
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Subtract the sum of 13 and 6 from 40. *
Helen [10]

Answer:

40-19 = 21

Step-by-step explanation:

I think this is correct dear

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3 years ago
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Which is not equivalent 1/5 7/35 6/25
Reptile [31]
Find a common denominator...

1/5 = 7/35
7/35 = 7/35
6/25 = ... can't have 35 as a denominator. Not equivalent.
4 0
2 years ago
Base on the drawing below in order for ABC to be similar to DEF bySAS similarity, which of the flowing need to be true
kati45 [8]

you devide the tops and then add the ratios and you mines it buy 180 and there should be your answer

7 0
3 years ago
1). 4✓(384.5)*2. 2.). evaluate 5✓0.00874​
vladimir1956 [14]

Answer:

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