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Aleks04 [339]
3 years ago
14

Shannon says the two expressions below are equivalent. Is she correct? Explain why or why not? 2(3a - 2) + 4a and 10a - 2

Mathematics
2 answers:
kotegsom [21]3 years ago
5 0

Answer:

Step-by-step explanation:

No she is not correct because 2 times 3a is 6a and -2 times 2 is -4. And then 6a plus 4a is 10a. So therefore the equation would be 10a -4 which is not equivalent to 10a -2. Hope this helps you

Anni [7]3 years ago
3 0
No, she's not correct. The first expression is equal to 2 and the second expression is equal to 12. So, it's NOT CORRECT.
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Help this this is due today
Olegator [25]

Answer:

x=3

Step-by-step explanation:

Simplify 3(x-2)+5X

= 8x-6=18

Add 6 to both sides

8x=24

Divide by 8

x=3

7 0
3 years ago
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NISA [10]

Answer:

A

Step-by-step explanation:

It's hard to see but when x is 6, y is 4.5. Just plug that into each equation and see which one is correct.

x^{2} =8y\\x=6;y=4.5\\6^{2} =8(4.5)\\36=36

8 0
3 years ago
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Helga [31]
......................... 1/2
4 0
3 years ago
5% of what number is 85?
Semmy [17]
5% = 0.5

0.5n = 85

Divide by 0.5

0.5n = 85
/0.5      /0.5

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The number is 170.
8 0
3 years ago
Assume that a varies directly as b. What is the constant of proportionality if a = 8 when b = 2?
Lena [83]

Answer:

k = 4

Step-by-step explanation:

Given that a varies directly as b then the equation relating them is

a = kb ← k is the constant of variation

To find k use the condition a = 8 when b = 2

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8 0
3 years ago
Read 2 more answers
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