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Dmitry [639]
3 years ago
9

Matt and Ming are selling fruit for a school fundraiser. Customers can buy small boxes and large boxes of apples. Matt sold 5 sm

all boxes of apples and 15 large boxes of apples for a total of $ 165 . Ming sold 11 small boxes of apples and 9 large boxes of apples for a total of $ 147 . Choose the system of equations that represent the situation. Type in
Mathematics
1 answer:
Alik [6]3 years ago
7 0

Answer:

Step-by-step explanation:

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A scientist needs 60 liters of a 40% solution of alcohol. He has a 30% solution and a 60% solution available. How many liters of
Monica [59]

A scientist needs 60 liters of a 60% acid solution. He currently has a 40% solution and a 70% solution. How many liters of each does he need to make the needed 60 liters of 60% acid solution?

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

Equation:

acid + acid = acid

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

0.40x + 0.70(60-x) = 0.60*60

-----

40x + 70*60 - 70x = 60*60

 

-----

-30x = -10*60

x = 20 liters

----

Gabe needs 20 liters of the 40% solution.

He also needs 40 liters of the 70% solution.

6 0
3 years ago
PLEASE HELP Which of the following ordered pairs represents a function?​
nordsb [41]

Answer:

The Answer is b, as the X value does not repeat.

Step-by-step explanation:

7 0
3 years ago
Find the equation of the line.<br> Use exact numbers.
likoan [24]

Answer:

y=3/4x-2

Step-by-step explanation:

y=mx+b

the b is the y-intercept so find the y-intercept of the line:

which is -2

the slope you need to find two points and look how many times do you need to rise or run to get the answer: 3/4

Hope this helps!

6 0
3 years ago
16. Does this shape show thirds?<br> Explain.
kati45 [8]

Answer:

No

Step-by-step explanation:

This shape does not show thirds. Although the shape is cut up into 3 shapes, the shapes are not equal. Imaging a cake... would you be happy if your friend got the rectangle, but you got the square. Cutting something into thirds is the same way. They all need to be equal.

6 0
3 years ago
Read 2 more answers
If discount rate is 12%, the present value of Rs X recieved at the end of each year for the next five years is equal to
myrzilka [38]

Answer:

Present Value = X [\frac{1}{(1 + 0.12)^{1} }  + \frac{1}{(1 + 0.12)^{2} }  + \frac{1}{(1 + 0.12)^{3} }  + \frac{1}{(1 + 0.12)^{4} }  + \frac{1}{(1 + 0.12)^{5} } ]

Step-by-step explanation:

To find - If discount rate is 12%, the present value of Rs X received at the end of each year for the next five years is equal to .... ?

Solution -

We know that, formula for finding the Present vale is given by

Present value = Future value / (1 + r)ⁿ

where r is the rate of interest

and n is Number of periods

Now,

Here in the question, we have

r = 12% = 12/100 = 0.12

n = 5

Also, Given that, we have received Rs X at the end of each year

So,

Present Value = \frac{X}{(1 + 0.12)^{1} }  + \frac{X}{(1 + 0.12)^{2} }  + \frac{X}{(1 + 0.12)^{3} }  + \frac{X}{(1 + 0.12)^{4} }  + \frac{X}{(1 + 0.12)^{5} }

                        = X [\frac{1}{(1 + 0.12)^{1} }  + \frac{1}{(1 + 0.12)^{2} }  + \frac{1}{(1 + 0.12)^{3} }  + \frac{1}{(1 + 0.12)^{4} }  + \frac{1}{(1 + 0.12)^{5} } ]

⇒Present Value = X [\frac{1}{(1 + 0.12)^{1} }  + \frac{1}{(1 + 0.12)^{2} }  + \frac{1}{(1 + 0.12)^{3} }  + \frac{1}{(1 + 0.12)^{4} }  + \frac{1}{(1 + 0.12)^{5} } ]

7 0
3 years ago
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