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vovikov84 [41]
3 years ago
11

Melissa's Coffee Shop makes a blend that is a mixture of two types of coffee. Type A coffee costs Melissa $4.35 per pound, and t

ype B coffee costs $5.70 per pound. This month's blend used twice as many pounds of type B coffee as type A, for a total cost of $614.25. How many pounds of type A coffee were used?
Mathematics
1 answer:
ehidna [41]3 years ago
8 0

Answer:

well let’s break this down

Let’s make type a coffee “a”

And type b coffee “b”

a is 4.35

b is 5.70

We knwo that b is twice as many as a

The total is 614.25

So we can do soemthing like this

4.35a+ (5.70b)2 = 614.25

Now solve

If we simplify its really

4.35a+11.40b =614.25

I like multiply by a 100 to get rid of decimals

435a+1140b=61425

Here we can go 2 ways

We can isoalte a or b

im gonna isloate b

so it would be (61425-435a)/1140 =b

Now we can use that as a subsitube to find a

Now we can just do this

435a +1140(61425-435a)/1140 = 61425

Pop it through an algebra calculator (just search up math pa..Pa and copy paste it, edit if needed) and then you’d get your answer

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Elis [28]

Answer: 151 books

Step-by-step explanation: 243-65-59+32=151

4 0
3 years ago
Read 2 more answers
The ratio of a to b is 3 to 1, and the ratio of b to c is 1 to 5. What is the value of 2a+3b/ 4b+3c?
Nostrana [21]

Answer:

B

Step-by-step explanation:

Expressing the ratios as fractions, that is

\frac{a}{b} = \frac{3}{1} ( cross- multiply )

a = 3b

\frac{b}{c} = \frac{1}{5} ( cross- multiply )

c = 5b

------------------------------------------

Given

\frac{2a+3b}{4b+3c} , substitute values from above for a and c

= \frac{2(3b)+3b}{4b+3(5b)}

= \frac{6b+3b}{4b+15b}

= \frac{9b}{19b} ← cancel b on numerator/ denominator

= \frac{9}{19} → B

6 0
3 years ago
How is the total of these fractions: 1/8, 1/4, 3/8, 1/2, 5/8, 3/4, 7/8 divided between 20 people?
Kamila [148]
1/8+ 1/4(2/8)+ 3/8+ 1/2(4/8)+ 5/8+ 3/4(6/8)+ 7/8= 28/8 = 3 1/2
5 0
3 years ago
How do I do this? 50 points plus brainliest.
Reil [10]

Answer:

you just gotta look at the angles, the middle letter is usually what's being focused on

17. angle QMR is less that TMS

18. angle QMR and angle TMS are supplementary angles

19. angle QMR and angle MTS are vertical angles

20. If measure angle QMT = 70 degrees, then measure angle RMS is 70 degrees because they are congruent

Step-by-step explanation:

3 0
2 years ago
PLEASE HELP ASAP!!<br> means a lot!!
egoroff_w [7]
The correct answer is:
B) \: y + 1 =  \frac{4}{3} (x - 9)
6 0
3 years ago
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