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2 years ago

Solving a decimal word problem using a linear equation of the for...

Mathematics

1 answer:

Sindrei [870]2 years ago

6 0

Answer:

5 pounds of coffee

Step-by-step explanation:

Let the number of pounds of coffee bought be 'x'.

Given:

Value on gift card = $90

Value of coffee per pound = $8.09

Money left after buying coffee = $49.55

Now, using unitary method,

1 pound cost = $8.09

∴ 'x' pounds cost = $8.09x$

Now, Money left = Total money on gift card - Cost of coffee.

$49.55=90-8.09x\\\\8.09x=90-49.55\\\\8.09x=40.45\\\\x=\frac{40.45}{8.09}=5$

Therefore, Lashonda bought 5 pounds of coffee.

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2logx=3-2log(x+3) solve for x

AVprozaik [17]

Answer:

$\large\boxed{x=\dfrac{-3+\sqrt{40+10\sqrt{10}}}{2}}$

Step-by-step explanation:

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2 years ago

What is the greatest common factor of 3a^2+30a

Lisa [10]

Answer:

Step-by-step explanation:

3 is a prime number so other than 3x1 3 does not have any other factors

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3 years ago

Which expression is equivalent to 4 square root x10

Likurg_2 [28]

The answer is 40 you do 10 times 4 I hope it helped you you only need to multiply

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3 years ago

Worth 20 pts

Verizon [17]

The answer would be 15 but i am not sure what the problem says her answer is. if it is not 15 then her answer is wrong

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2 years ago

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Which points in the scatter plot are outliers?

Liono4ka [1.6K]

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Basically the ones that are far away from the others.

Thus, the outliers for this graph are K and F

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3 years ago

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