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harina [27]
3 years ago
9

Complete the following statement.

Mathematics
2 answers:
Lelechka [254]3 years ago
7 0
Bigger?? I don't really understand the question you're trying to figure out
kakasveta [241]3 years ago
3 0
Greater than? I don’t fully understand what is being stated… elaborate?
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Can you explain step by step for #15 and #16 I have a test on this tomorrow
RUDIKE [14]

Answer:

15.

\left\{\begin{array}{l}x+y=50\\0.2x+0.1y=6\end{array}\right.

16. 10 ml of 20% saline and 40 ml of 10% saline

Step-by-step explanation:

A chemist takes x ml of 20% saline and y ml of 10% saline. In total, he takes

x + y ml that is 50 ml, so

x + y = 50.

There are  0.2x ml of salt in x ml of 20% saline and 0.1y ml of salt in 10% saline. There are 0.12\cdot 50=6 ml of salt in 50 ml of 12% saline. Thus,

0.2x+0.1y=6

15. We get the system of two equations:

\left\{\begin{array}{l}x+y=50\\0.2x+0.1y=6\end{array}\right.

16. Solve this system. From the first equation:

x=50-y

Substitute it into the second equation:

0.2(50-y)+0.1y=6\\ \\10-0.2y+0.1y=6\\ \\-0.1y=6-10\\ \\-0.1y=-4\\ \\y=40\\ \\x=50-y=50-40=10

7 0
3 years ago
What is 17 less than a number g?
Sophie [7]
I hope this helps you




17-g
8 0
3 years ago
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A TRIANGLE HAS SIDE LENGTH 3, 8 AND 9. FIND THE ANGLE MEASUREMENT FOR THE ANGLE CROSS FROM THE SIDE WITH LENGTH OF 8.
LekaFEV [45]

Answer:

Answer in file:

Step-by-step explanation:

4 0
2 years ago
Determine if the equation x2 – y = 1 defines y as a function of x. No. At least one input results in two outputs. No. At least o
posledela
Yes. One input results in one output. the last choice is correct. 
every x value will product only one y value.
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3 years ago
How would I simplify number 3) ?
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You wouldn’t because 3 is the base number and cannot be simplified anymore
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3 years ago
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