Answer:
108 pounds of mulch.
64 pounds of gravel.
Step-by-step explanation:
Let x be the amount of mulch sold and y be the amount of gravel sold.
We have been given that a supplier sells 2 1/4 pounds of mulch for every 1 1/3 pounds of gravel.
We can represent this information as:
We are also told that the supplier sells 172 pounds of mulch and gravel combined. We can represent this information as:
From equation (1) we will get,
Substituting this value in equation (2) we will get,
Now let us have a common denominator.
Therefore, the supplier sold 64 pounds of gravel.
Upon substituting y=64 in equation (2) we will get,
Therefore, the supplier sold 108 pounds of mulch.
280 adults were there in the train.
What is linear equation definition and example?
- The definition of a linear equation is an algebraic equation in which each term has an exponent of one and the graphing of the equation results in a straight line.
- An example of linear equation is y=mx + b. noun. 20.
- A polynomial equation of the first degree (such as x = 2y - 7)
Given,
Total children are in the train = 40
1/8 are children in train and no of children in train ,
∴ 1/8 × x = 40
x = 40 × 8 ⇒ 320
The no of passenger in train = 320
in total passenger, 40 are children .
So, rest adults passengers are = 320 - 40 ⇒ 280
There fore, 280 adults were there in the train.
Learn more about linear equation
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1.5/3
2/3
1/6.5
Thats the answer
2 years= 24 months
1/2 year= 6 months
24 + 6 = 30 payments