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3 years ago

PLEASE HELP ME I’LL MARK BRAINLIEST if you actually help

Mathematics

1 answer:

aalyn [17]3 years ago

4 0

Answer:

23. D

24. B

25. F

26. A

27. C

28. E

Step-by-step explanation:

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Ann went to the store after school 5 days this week. Each day, she bought a sandwich and a comic book. She spent a total $50 of

Lubov Fominskaja [6]

In total 5 days, she has paid: 5 x $2 = $10 for the sandwiches

In total 5 days, she has paid: $50 - $10 = $40 for the comics

So, she paid: $40 / 5 = $8 for each comic

If helpful, brainliest please !

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3 years ago

I need to know the answer.

katrin [286]

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3 years ago

A store sells Brazilian coffee for $10 per lb. and Columbian coffee for $14 per lb. If the store decides to make a 150-lb. blend

Artemon [7]

Answer:

The store should use 112.5 pounds of Brazilian coffee and 37.5 pounds of Colombian cofee.

Step-by-step explanation:

Let "b" be the amount of Brazilian coffee, in pounds, required for the blend and "c" the amount of Colombian coffee required, in pounds.

Since there are two unknown variables a two-equation system is needed to solve the problem, we can set up one equation for weight and another for price as follows:

$b+c=150\\10*b+14*c=11*150$

Solve for "c" by multiplying the first equation by -10 and adding it to the second one:

$b+c=150\\10b+14c -10b-10c=11*150 -(10*150)\\4c=150\\c = 37.5$

Now, solve for b by replacing the value obtained into the first equation

$b+c=150\\b= 150 - 37.5\\b=112.5$

The store should use 112.5 pounds of Brazilian coffee and 37.5 pounds of Colombian cofee.

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3 years ago

[ALGEBRA]Can someone check my work, if something is wrong please state steps?

IRISSAK [1]

I agree with ur answer...

d = 16t^2....divide both sides by 16
d / 16 = t^2 ...take the square root of both sides, eliminating the ^2
sqrt (d/16) = t
(sqrt d) / 4 = t

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3 years ago

College Algebra Half Life Problem

Rus_ich [418]

I think the correct answer is 56%

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3 years ago