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Orlov [11]
3 years ago
6

Hi . Anyone who sees this I need help if you know of I have a question whats the answer and I way i can show my work the equatio

n is 4.63 x 0.8 thanks to anyone who got it right !
Mathematics
1 answer:
Shkiper50 [21]3 years ago
6 0
Answer: yes use m a t h w a y !!
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a metal worker has a metal alloy that is 20% copper, and another metal alloy that is 60% copper. How many kilograms (kg) of each
emmainna [20.7K]

Let X = the 29% alloy and Y = the 60% alloy.

They want a total of 80kg, so you have X +Y = 80

Rewrite that to get X = 80-Y


You also want 0.20X + 0.60Y = 0.52(80)

Replace X with 80-y:

0.20(80-y) + 0.60y = 0.52(80)

Simplify:

16 - 0.20y + 0.60y = 41.6

Combine like terms:

16 +0.40y = 41.6

Subtract 16 from each side:

0.40y = 25.6

Divide both sides by 0.40

y = 25.6 / 0.40

y = 64


Now you have Y replace y with 80 in X = 80-Y

X = 80 - 64

X = 16

They need 64 Kg of the 60% alloy and 16 Kg of the 20% alloy.


5 0
3 years ago
Unit rate of 15 pounds in 6 weeks<br><br> Please help me!!! Will mark as brainiest!
erastova [34]
The unit rate is 2.5 pounds a week.
15/6 = 2.5
I hope this helps.
3 0
3 years ago
Read 2 more answers
Given: l || m; ∠1 ∠3
Katarina [22]

The parts that are missing in the proof are:

It is given

∠2 ≅ ∠3

converse alternate exterior angles theorem

<h3>What is the Converse of Alternate Exterior Angles Theorem?</h3>

The theorem states that, if two exterior alternate angles are congruent, then the lines cut by the transversal are parallel.

∠1 ≅ ∠3 and l║m because we are: given

By the transitive property,

∠2 and ∠3 are alternate interior angles, therefore, they are congruent to each other by the alternate interior angles theorem.

Based on the converse alternate exterior angles theorem, lines p and q are proven to be parallel.

Therefore, the missing parts pf the paragraph proof are:

  • It is given
  • ∠2 ≅ ∠3
  • converse alternate exterior angles theorem

Learn more about the converse alternate exterior angles theorem on:

brainly.com/question/17883766

#SPJ1

3 0
2 years ago
For the following relation, find the: a) Reflexive closure b) Symmetric closure c) Transitive closure 2 You may include explanat
Luba_88 [7]

Answer:

Following are the complete solution in the attached file.

Step-by-step explanation:

5 0
3 years ago
Consider the equation 1+n+6/n+1=4/n-2
Inga [223]
A. The LCD is (n+1)(n-2)

B. n = -1, n = 2

C. n = negative 1 plus or minus the square root of 73, everything divided 2.

I’ve add a picture of the answers at the bottom in case I wasn’t clear on question C.

Hope that helps.

8 0
4 years ago
Read 2 more answers
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