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3 years ago

What is the solution to the system of equations? y = 2x – 3.5 x – 2y = –14

Mathematics

1 answer:

zhenek [66]3 years ago

4 0

1. x-2(2x-3.5)=-14
x-4x+7=-14
-3x=-21
x=7
2. y=2(7)-3.5
y=14-3.5
y=10.5
hope this helps!

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60 mph

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3 years ago

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Mrrafil [7]

Answer:

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Step-by-step explanation:

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2 years ago

Graph the equation to solve the system y=2x-3 y=x+6

Aleksandr-060686 [28]

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3 years ago

If (a+10) and (a+20)are supplementary angles,find them

motikmotik

Given:

(a+10) and (a+20) are supplementary

To find:

Each angle

Steps:

if 2 angles are supplementary that means they add up to 180°

(a + 10) + (a + 20) = 180

a + 10 + a + 20 = 180

2a + 30 = 180

2a = 180 - 30

2a = 150

a = 150/2

a = 75°

Now let's find value of each angle,

a + 10 = 75 + 10

= 85°

a + 20 = 75 + 20

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Therefore, the value of each angle is 85° and 95° respectively

Happy to help :)

If you need any help feel free to ask

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2 years ago

Fish is $20 a kilogram your recipe asks for 1/2 kilogram. How much will it cost

lora16 [44]

Known :

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Asked :

½ kg = $...?

Answer :

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½ kg = ½ × $20

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3 years ago