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Paladinen [302]
4 years ago
14

PLLLLLLLEEEEEEEEEEEEEEASE ANSWER FAST MATH GENIUSES!!!!!!!

Mathematics
2 answers:
pickupchik [31]4 years ago
8 0

Answer:

5 lbs

Step-by-step explanation:

1)  x = lbs. of coffee at $7 per lb

2)  (7)(x) + (4)(10) = (5)(x + 10)

3) 7x + 40 = 5x + 50

   7x - 5x = 50 - 40

         2x = 10

           x = 5 (lbs. of coffee at $7 per lb.)

alisha [4.7K]4 years ago
6 0

The answer to your problem is 5. Hope this helps

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7 0
3 years ago
Read 2 more answers
#10: find angle x and y!<br> Im struggling so much with this question please help a gurl out!
hjlf

Answers:

x = 100

y = 25

==============================================================

Explanation:

Angle y and the 25 degree angle are corresponding angle. Because the lines are parallel, this means that y = 25

Check out the attached image. Using a red pen, I extended one of the lines to form a triangle. From the alternate interior angle theorem, we know that one of the angles of the triangle is 75 degrees (alternate interior angles are congruent). Again this stems from the fact that the lines are parallel.

I've also introduced the variable z to help find x. The angles x and z add up to 180 degrees since they form a straight line. So we need to find z before we can find x.

The triangle's angles 25, 75, z add up to 180. Let's solve for z

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x+z = 180

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4 0
3 years ago
If f(x)=3x+5 and q(x)=0, show that f(x)+q(x)=f(x).
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Step-by-step explanation:

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