1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
vaieri [72.5K]
3 years ago
12

How many pounds of a 23% zinc alloy must be mixed with a 42% zinc alloy to make 516 pounds of a 37.25% zinc alloy?

Mathematics
1 answer:
nydimaria [60]3 years ago
6 0

Answer:

(A)129 Pounds

Step-by-step explanation:

Let x be the number of 23% zink alloy

Therefore:

Since the total result is 516 pounds

The number of pounds of 42% zink alloy =516-x pounds

We then have the resulting equation:

0.23x+0.42(516-x)=0.3725*516

0.23x+216.72-0.42x=192.21

Colect like terms

0.23x-0.42x=192.21-216.72

-0.19x=-24.51

Divide both sides by 129

x=129 pounds

Therefore, the number of pounds of 23% zink alloy that must be mixed is 129 pounds.

You might be interested in
Rocco can do 60 jumping jacks in 1 minute. How many jumping jacks can he do<br> in 8 minutes?
stich3 [128]

Answer:

480

Hope this helps

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Ilida went to minewaska state park One day this summer. All of the people at the park were either hiking or bike riding. There w
expeople1 [14]
676 - 178 is 498.
498/2 is 249.
There were 249 bike riders and (249 + 178) hikers.
5 0
3 years ago
Pleas help me! Ill give you brainlist!
Shalnov [3]

a = 10, c = 15, b = 5√5

a = 8, c = 18, b = 2√65

a = 12, c = 14, b = 2√13

a = 4, c = 20, b = 8√6

a = 12, b = 14, c = 2√85

a = 4, b = 20, c = 4√26

a = 10, b = 15, c = 5√13

a = 8, b = 18, c = 2√97

4 0
3 years ago
Complete the steps in solving 4/9=x/36.
ycow [4]

Step-by-step explanation:

crossmultiply and divide both sides by the co efficient of x

8 0
2 years ago
What’s the answer?!!!!!
12345 [234]
C = -5

8c-6=2c-36
8c-2c=-36+6
6c=-30
4 0
2 years ago
Other questions:
  • Michelle kicks a soccer ball up into the air from the ground. The graph represents the height of the ball, in feet, as a functio
    10·1 answer
  • Y=-square root of 2x+1
    14·1 answer
  • What is the x-coordinate of the solution to the following system of equations?
    9·1 answer
  • A fist dog weighs 16.5 kg what is the weight of V dog in grams
    10·1 answer
  • Which prism has a volume of 5 cubic units?
    9·2 answers
  • Ratio 30 seconds to 5 min write as a fraction in lowest terms
    5·1 answer
  • Number 3 I don’t understand it
    10·1 answer
  • Which is the x-intercept for 4x-2y = 16? A) (4, 0) B (0, 4) C (0, 8) D (-8, 0)
    5·2 answers
  • Which function has an inverse that is also a function?
    8·1 answer
  • 10 Points!!! Write the equation of a line with slope 2 and y-intercept -1.
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!