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Nataly_w [17]
3 years ago
5

Help need answer and explanation

Mathematics
1 answer:
aksik [14]3 years ago
3 0
I'm pretty sure it C since line L and line M are parallel
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how many ounces of pure water must be added to 50 ounces of a 15% saline solution to make a saline solution that is 10% salt
anygoal [31]

50 ounces of 15% saline solution contains 0.15*50 = 7.5 ounces of salt.

Let x be the amount of pure water you add to this solution. Then you end up with (x + 50) ounces of this new solution. The amount of salt stays the same.

You want the new solution to have a concentration of 10%. This means you need

7.5 / (x + 50) = 0.1

==>  7.5 = 0.1(x + 50)

==>  7.5 = 0.1x + 5

==>  2.5 = 0.1x

==>  2.5/0.1 = 0.1x/0.1

==>  x = 25

7 0
3 years ago
△STR≅△LMN, SR=7b+8, and LN=11b−12. Find b and SR.
mote1985 [20]

Answer:

<em>b = 5</em>

Step-by-step explanation:

7 0
3 years ago
X=6{2+3[2(7-3)+(7+1)-5]} can someone help?
erma4kov [3.2K]

270 solve that yourself lol

3 0
3 years ago
Find the Slope for <br> (3,-4) and (5,4)
REY [17]
The picture below shows the formula for calculating slope

In this example:
y2 = 4
y1 = -4
x2 = 5
x1 = 3
(These are the numbers you substitute into the formula)

Calculations:
4 - (-4) = 8
5 - 3 = 2
8/2 = 4

As you can see, after the values are substituted into the equation & simplified, the slope is equal to 4

8 0
2 years ago
Read 2 more answers
Choose the function that correctly identifies the transformation of f(x) = x2 shifted two units to the left and one unit down.
AnnZ [28]

Answer:

D) g(x) = (x + 2)^2 - 1



7 0
3 years ago
Read 2 more answers
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