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Alex777 [14]
3 years ago
7

Solve the system of linear equations by multiplying. Check the answer by graphing the system of equations. –2x + 2y = 10 -4x + 5

y = 27
Mathematics
1 answer:
kari74 [83]3 years ago
8 0

Answer:

x=2, y=7 (2,7)

Explanation:

Solve for the first variable in one of the equations, then substitute the result into the other equation.

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CaHeK987 [17]
Solve for n by simplifying both sides of the equation, then isolating the variable
n=9
4 0
3 years ago
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Which ratio is not equivalent to the other three? A 2 3 B 12 15 C 18 27 D 6 9
finlep [7]

Answer: B= 12 15

Step-by-step explanation:

The given ratios are

A) 2 3= 2: 3  already in its simplest form

B)  12 15 =12:15 Changing to its simplest form, we divide both by 3 giving us           4:5

C)  18 27 =18: 27  Changing to its simplest form, we divide both numbers by 9 giving us =2:3        

D)6 9=6:9  Changing to its simplest form, we divide both by 3 giving us  

       2:3

Therefore the ratio not equivalent to other three is 12:15

4 0
2 years ago
Solve 82×41 , show ur work !
lidiya [134]
  82
*41

2*1=2
8*1=8
4*2=8
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328+82=410
4 0
3 years ago
If you currently have $300 set aside for the trip and you're only able to save $75 a week, write an inequality representing how
algol13

Answer:

see the explanation

Step-by-step explanation:

In this problem

I will assume that the total amount required for the trip is $1,200

so

Let

x ----> the number of weeks

we know that

The number of weeks multiplied by $75 plus $300 must be at least $1,200

In this context, the term "at least" means "greater than or equal to"

so

The linear inequality that represent this problem is

75x+300\geq 1,200

Solve for x

subtract 300 both sides

75x\geq 1,200-300

75x\geq 900

Divide by 75 both sides

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therefore

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3 0
3 years ago
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Feliz [49]

Answer:

Using the formula

A=wl

Solving forl

l=A

w=624

24=26in

8 0
2 years ago
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