The simplified expression of 6(y + 13) + 21y is 27y + 78
<h3>How to simplify the expression?</h3>
The expression is given as:
6(y + 13) + 21y
Open the brackets
6 * y + 6 * 13 + 21y
Evaluate the product
6y + 78 + 21y
Collect the like terms
6y + 21y + 78
Evaluate the like terms
27y + 78
Hence, the simplified expression of 6(y + 13) + 21y is 27y + 78
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It has the same side of the length and feet
Answer: the cost of one adult ticket is $8
the cost of one kid ticket is $4
Step-by-step explanation:
Let x represent the cost of one adult ticket.
Let y represent the cost of one kid ticket.
They sold 64 adult tickets (x) and 132 kid tickets (y) and made $1040. This means that
64x + 132y = 1040 - - - - - - - - - - -1
An adult ticket is double the cost of a kid's ticket. This means that
x = 2y
Substituting x = 2y into equation 1, it becomes
64 × 2y + 132y = 1040
128y + 132y = 1040
260y = 1040
y = 1040/260 = 4
x = 2y = 2 × 4
x = 8
Negative+positive=positive
The conclusion about the detergents in the sampling is D.Inferences cannot be made about the population of fabric from which the pieces were chosen.
<h3>What is sampling?</h3>
Sampling is the selection of a subset of individuals that are gotten from a statistical population in order to estimate the characteristics of the whole population.
In this case, inferences cannot be made about the population of fabric from which the pieces were chosen. The conclusion cannot be made that detergent A cleans better than detergent B for the fabric from these bolts.
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