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Zigmanuir [339]
3 years ago
10

Solve the equation. ​

Mathematics
1 answer:
Verdich [7]3 years ago
6 0
Multiple all by 7
2x +6=-2
2x = -2-6
2x = -8 /2
x = -4
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Ming wants to make a 40% sugar solution. She had already poured 3 L of a 80% sugar solution into a beaker. How many L of a 10% s
jeyben [28]

Answer:

Ming must add 0.375 L of a 10% sugar solution

Step-by-step explanation:

if 3 L = 80%

1.5 L should = 40% (since it is half of 80%)

and if 40 divided by 4 = 10%

1.5 also needs to be divided by 4

so 1.5 divided by 4 = 0.375

that means Ming must add 0.375 L of a 10% sugar solution

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Step-by-step explanation:

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2 years ago
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fomenos
178.

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3 years ago
54. The triangles in the diagram below are congruent.
Reika [66]

Answer:

Angle N should be 64

Step-by-step explanation:

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Find an equivalent ratio for 22/55 and then write the proportion
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\frac{22}{55} = \frac{2}{5} = .4
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