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4 years ago

DONT UNDERSTAND PLEESE HELP

Mathematics

1 answer:

torisob [31]4 years ago

5 0

So you convert 2 1/5 to 2 2/10 and you convert 3 1/2 to 3 5/10 so that it can have the same denominator. Then you change 2 2/10 to a decimal which will be 2.2 and you change 3 5/10 to a decimal which will be 5.5. Then you multiply 2.2 by 3.5 and get 7.7. Don’t forget about the 6. You multiply 7.7 by 6 and get 46.2. If you want to convert that back into a fraction, you will get 46 1/5 simplified

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The Coffee Counter charges $8.00 per pound for Kenyan French Roast coffee and $10.00 per pound for Sumatran coffee. How much o

Radda [10]

Answer:

x = 9

y = 9

Step-by-step explanation:

Given :

Let :

Kenyan French roast coffee = x

Cost per x = $8

Sumatran Coffee = y

Cost per y = $10

x + y = 18 - - - - (1)

8x + 10y = 9 * 18 ;

8x + 10y = 162 - - - - (2)

From (1):

x = 18 - y

Put x = 18 - y in (2)

8(18 - y) + 10y = 162

144 - 8y + 10y = 162

2y = 162 - 144

2y = 18

y = 9

x = 18 - y

x = 18 - 9

x = 9

3 0

3 years ago

Given that 2x – 2y = 23

lidiya [134]

Answer:

x = 41/2

Step-by-step explanation:

I am assuming that we are finding 'x' when y = 9.

$2x-2y=23\\\\2x-2(9)=23\\\\2x-18=23\\\\2x-18+18=23+18\\\\2x=41\\\\\frac{2x=41}{2}\\\\\boxed{x=\frac{41}{2}}$

Hope this helps!

8 0

3 years ago

Read 2 more answers

Determine the function which corresponds to the given graph. a natural logarithmic function crossing the y axis at zero and goin

kogti [31]

Answer:

$\text{Required function is} f(x)=-\log_6(x+1)$

Step-by-step explanation:

We need to find the function using given condition.

Parent function of log is log x

$f(x)=\log x$

A natural logarithmic function crossing the y axis at zero and going through the point 5, -1. The asymptote is x = -1

Asymptote is x=-1

So, graph will shift 1 unit right.

$f(x)=a\log_b(x+1)$

Passing point: (0,0) and (5,-1)

Using these two point we will get a and b

For point (5,-1)

$-1=a\log_b(5+1)$

$-1=a\log_b6$

Log to exponent change property

$b^{-1/a}=6$

We will rearrange the expression

$b^{-1/a}=6^{-1/-1}$

Now we compare both side to get a and b

So, a=-1 and b=6

Final function we get

$f(x)=-\log_6(x+1)$

Thus, Required function is $f(x)=-\log_6(x+1)$

5 0

3 years ago

What is the side length a in the triangle below?

grigory [225]

Answer:

a=5

Step-by-step explanation:

a^2+b^2=c^2

c^2-b^2=a^2

13^2-12^2=a^2

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8 0

3 years ago

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prisoha [69]

Answer:

n = 3

Step-by-step explanation:

8n - (3n + 4) = 11

8n - 3n - 4 = 11

5n = 11 + 4

5n = 15

n = 3

4 0

3 years ago