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olga nikolaevna [1]
4 years ago
8

3 type of beans, whose prices per kg are respectively $15m,$25 and $30 are to be taken 2 at a time and mixed in the same proport

ion so that the resulting mixture are of equal value. How many they be mixed and the price /kg for resulting mixture. (ans; 2:3, $21/kg
Mathematics
1 answer:
DENIUS [597]4 years ago
3 0
What are your thoughts on how to solve this?
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Please help! <br><br> 6.2 divided by (2x + 1)= 2 1/3 divided by 4
guajiro [1.7K]

Answer:

x=2/3

Step-by-step explanation:

(2x+1)/2 = 2 1/3/4

Multiply 4 on both sides:

2x+1=2 1/3

Rewrite:

2x+1=7/3

Subtract 1 on both sides:

2x=4/3

Divide 2 on both sides:

x=2/3

Thus x=2/3

Hope this helps!

7 0
3 years ago
Read 2 more answers
this formula, i represents the _____ of the loan. a. annual interest rate b. interest rate per period c. initial amount d. incid
Phantasy [73]

Answer:

b. interest rate per period

Step-by-step explanation:

We know that

Annual interest rate is APR or (r)

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n is number of periods

t is time in years

A is the amount after t years

so,

i is the interest rate per period

Hence ,

answer is

i is the interest rate per period


3 0
3 years ago
4(a + 2) = -4<br> whats A
OLga [1]
The answer is -3 because -3+2=-1 then -1(4)=-4
4 0
4 years ago
Read 2 more answers
2/5+4/7
horrorfan [7]
2/5 is closer to 0
4/7 is closer to 1
the fraction would be 34/35 and is closer to 1 in decimal form it's about .97
5 0
3 years ago
Read 2 more answers
2 3/8 - 4 1/2 + 3 1/8 - (1/2)
UkoKoshka [18]

let's convert the mixed fractions to improper fractions firstly.

\bf \stackrel{mixed}{2\frac{3}{8}}\implies \cfrac{2\cdot 8+3}{8}\implies \stackrel{improper}{\cfrac{19}{8}}~\hfill \stackrel{mixed}{4\frac{1}{2}}\implies \cfrac{4\cdot 2+1}{2}\implies \stackrel{improper}{\cfrac{9}{2}} \\\\\\ \stackrel{mixed}{3\frac{1}{8}}\implies \cfrac{3\cdot 8+1}{8}\implies \stackrel{improper}{\cfrac{25}{8}} \\\\[-0.35em] ~\dotfill

\bf \cfrac{19}{8}-\cfrac{9}{2}+\cfrac{25}{8}-\cfrac{1}{2}\implies \stackrel{\textit{using an LCD of 8}}{\cfrac{(1)19-(4)9+(1)25-(4)1}{8}}\implies \cfrac{19-36+25-4}{8} \\\\\\ \cfrac{4}{8}\implies \cfrac{1}{2}

8 0
3 years ago
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