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3 years ago

I need help with this question please.

Mathematics

2 answers:

nika2105 [10]3 years ago

7 0

32.8 is the answer to your question

Tema [17]3 years ago

3 0

32+(0.8)= 32.8 is that the answer? HOpe this helped

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Solve each system of equations 7x - y = 12 7x + 3y = -8

Margaret [11]

Answer: Y= -5 and X= 1

Step-by-step explanation:

Linear equations, huh? Okay, well we'll subtract for this problem. 7x minus 7x is nothing, so x is all cancelled out. Negative y minus 3y is -4y. And 12 minus -8 is 20, since the two negatives become a positive. So we have -4y = 20, so y equals -5. Great, so now we plug in y in one of the equations. I'll chose the top one. Our new equation is: 7x+5=12. Subtract both sides by 5, and we have 7x=7. Well, this means that x equals 1, therefore giving y equals -5, and x equals 1.

Aight, let's check. Plug in both variables for both equations. We get 7+5=12, and 7-15= -8

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3 years ago

Graph the equation on the coordinate plane. y=3/4x

ale4655 [162]

Since the y-intercept is 0, put a point at zero, then go up three and right four, then connect the dots.

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3 years ago

Given the equation 5 + x - 12 = x - 7. Part A. Solve the equation 5 + x - 12 = x - 7. In your final answer, be sure to state the

myrzilka [38]

Part A:
$5+x-12=x-7$
$5+x=x+5$
$5=5$

Since we know that, this equation has infinite solutions.

Part B:
 $5+(-4)-12=(-4)-7$
$-11=11$
- This is with our solution.

$5+0-12=0-7$
$-7=-7$
- This is with our solution.

$5+5-12=5-7$
$-2=-2$
- This is with our solution.

- So, we just proved that 3 random values work, this means that this equation does indeed have infinite solutions.

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4 years ago

In a school there are 60 teachers and 1200 students 30% of the students are bilingual and 15% of the teachers are bilingual how

stepan [7]

Answer: 729 bilingual people in that school

6 0

4 years ago

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What is the distance from (-4,0) to (2,5)

Svetllana [295]

Answer:

√61 ≈ 7.81

Step-by-step explanation:

Distance formula:

√(x₂ - x₁)² + (y₂ - y₁)²

√(2 - (-4))² + (5 - 0)²

√(2 + 4)² + 5²

√6² + 5²

√36 + 25

√61

5 0

3 years ago

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