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lapo4ka [179]
3 years ago
6

Question 2 of 10

Mathematics
1 answer:
Archy [21]3 years ago
7 0

Answer:

3y-6=18\\\\3y=24

The value of "y" is: y=8

Step-by-step explanation:

Given the following equation:

3(y-2) = 18

1. You must apply the Distributive property on the left side of the equation (This is: a(b\±c)=ab\±ac). Then:

(3)(y)+(3)(-2) = 18\\\\3y-6=18

2. Now you need to apply the Addition Property of Equality. Remember that this states that:

If\ a=b,\ then\ a+c=b+c

So, adding 6 to both sides of the equation, you get:

3y-6+(6)=18+(6)\\\\3y=24

3. Finally, you can apply the Division Property of Equality, which states that:

If\ a=b,\ then\ \frac{a}{c}=\frac{b}{c}

So, dividing both sides of the equation by 3, you get:

\frac{3y}{3}=\frac{24}{3}\\\\y=8

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If 7 litres of petrol cost $14.70 ,calculate the cost of 15 litres of petrol<br><br> Kindly answer
erastovalidia [21]

Answer:

The cost of 15 liters is $31.50

Step-by-step explanation:

1. Find the price for 1 liter of petrol.

Divide the cost by the number of liters:

$14.70 / 7 = $2.10 per liter.

2. Multiply the price for 1 liter by the new number of liters, 15.

$2.10 per liter x 15 liters = $31.50

3 0
3 years ago
Molly has a jar containing 4 yellow, 3 blue, 3 green, and 2 orange marbles
NeTakaya

Answer: .111 with a bar notation over the last 1 or 11.1%

Step-by-step explanation:

There are 12 marbles in total. There are 4 yellow marbles. Therefore there is a 4/12 probability of Randomly picking a Yellow marble the first time . Since she placed the marble back, there is a 4/12 probability of getting a yellow marble the 2nd time.

(4/12)(4/12) = 16/144 = 1/9 = .111 with a bar notation over the last 1 or 11.1% (about 11%)

6 0
3 years ago
What is .07 times 1.22
lidiya [134]
.07×1.22 = ?
first take away the decimals in the question, 7×122 =854.
now add the decimals back to the answer, we had 4 decimal places in the questions so add 4 decimal places to 854 = 0.0854

answer= 0.0854
7 0
3 years ago
In a carnival game, you roll 2 dice. if the sum is 6, you receive a $5 payoff. if the sum is 12, you receive a $9 payoff. otherw
Ray Of Light [21]
P(sum = 6)  = 5/36 ;  P(sum = 12) = 1/36

expected payoff = (5/36)(5) + (1/36)(9)  =   $0.94
3 0
3 years ago
In the game of baseball, there are 3 in outs per inning . A pitcher who pitches 4 innings and gets two batters out in the fifth
weeeeeb [17]

Answer: Yes, it is correct

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