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Charra [1.4K]
2 years ago
12

I need help please ​

Mathematics
1 answer:
mote1985 [20]2 years ago
5 0
X=1/2-3y/4
and
x=10/3+2y/3
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Please help it will be brainlist please make sure you are 100% the awnser is right
Dominik [7]

Answer:

Step-by-step explanation:

Step 1: Sum of angles on a straight line is 180

Step 2:

2x + 25 + y = 180

2x + y = 180 - 25

2x + y = 155  (1)

Step 3:

3x - 10 + y = 180

3x + y = 180 + 10

3x + y = 190    (2)

Step 4: Substract equation 1 from 2

3x + y - 2x - y = 190 - 155

      x = 35

Step 5:

Substitute x in equation 1 to find y

2x + y = 55

2(35) + y = 155

70  +  y = 155

  y = 155 - 70

   y = 85

4 0
3 years ago
Hey guys whats a good calculator to get for maths
kirill [66]

Answer: CasioFX-CG50

Step-by-step explanation:  you can get it on amazon

7 0
2 years ago
What is the solution to the equation? 78=m32
tekilochka [14]

Step-by-step explanation:

78 = m32

m = 78/32 = 39/16 = 2.4375

6 0
2 years ago
Shanley would like to give $5 gift cards
Serjik [45]

Answer:

$5x + $4y ≤ $120

let x = 10

y = 5

$70  ≤ 120

Step-by-step explanation:

Note that

> means greater than

< means less than

≥  means greater or equal to

≤ means less than or equal to

the total amount Shanley has is $120. She can spend less than this amount or the amount exactly. So, the inequality sign to be used is ≤

$5x + $4y ≤ $120

let x = 10

y = 5

(50) + 20  ≤ 120

$70 ≤  120

4 0
3 years ago
Is 84 - 74 even or odd​
quester [9]

Answer:

even

Step-by-step explanation:

3 0
3 years ago
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