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kipiarov [429]
2 years ago
9

Is the solution 3/4 or 5 of 4.5x=18

Mathematics
2 answers:
Alexus [3.1K]2 years ago
4 0

Answer:

x=18/4.5=4

Step-by-step explanation:

Divide both sides by 4.5

(÷4.5)4.5x=18(÷4.5)

x=18÷4.5=4

notka56 [123]2 years ago
3 0

Answer:

4

Step-by-step explanation:

  • divide each side by 4.5
  • x would be left equal to 4
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What is the justification for step 2? 4(x-5)= -12 Justification Step 1: 4x-20=-12 Distributive Property Step 2 4x= 8 ? Step 3 x=
matrenka [14]

Answer:

addition property of equality

Step-by-step explanation:

Given the equation 4(x-5) = -12

Expand

4x - 20 = -12

Add 20 to both sides (addition property of equality)

4x-20+20 = -12+20

4x = 8

x = 8/4

x = 2

Hence the value of x is 2

The justification for step 2 is addition property of equality

7 0
3 years ago
a fruit company delivers its fruit in two types of boxes: large and small. A delivery of 3 large boxes and 2 small boxes has a t
TiliK225 [7]

Answer:

x = the wight of the large box

y = the weight of the small box

A delivery of 3 large boxes and 2 small boxes has a total weight of 73 kilograms.

3x + 2y = 73

A delivery of 8 large boxes and 4 small boxes has a total weight of 177 kilograms.

8x + 4y = 177

by solving the system of equations

3x + 2y = 73

8x + 4y = 177

we find

x = 15.5 kg

y = 13.25 kg

the large box weights 15.5 kg.

the small box weights 13.25 kg.

5 0
3 years ago
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Which word describes the slope of the line?<br><br> positive<br> negative<br> zero<br> undefined
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Please Help Me On These Math Questions!!!!! Solve Each System By Elimination
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12) -2x + y = -20 ; 2x + y = 48
y = -20 + 2x ; 2x + (-20 + 2x) = 48 ⇒ 2x -20 + 2x = 48 ⇒ 4x = 48 + 20
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y = -20 + 2(17) ⇒ y = -20 + 34 ⇒ y = 14

13) 3x -y = -2 ; -2x + y = 3
y = 3 + 2x ; 3x - (3 + 2x) = -2 ⇒ 3x - 3 - 2x = -2 ⇒ x = -2 + 3 ⇒ x = 1
y = 3 + 2(1) ⇒ y = 3 + 2 ⇒ y = 5

14) x - y = 4 ; x - 2y = 10
x = 4 + y ; (4 + y) - 2y = 10 ⇒ 4 + y - 2y = 10 ⇒ 4 - y = 10 
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Do you think making a table is the best way to find the total area of the rooms
Komok [63]
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4 years ago
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