Answer:
One metric ton is equal to a 1000 kilograms.
An expression is formed of numbers, variables, and mathematical operations. The expression that is equivalent to 35m²-63 is 7(5m²-9).
<h3>What is an Expression?</h3>
In mathematics, an expression is defined as a set of numbers, variables, and mathematical operations formed according to rules dependent on the context.
Given the expression 35m²-63, which can be written as,
Taking 7 as common from both the terms,
Hence, the expression that is equivalent to 35m²-63 is 7(5m²-9).
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Answer:
n = 9
Step-by-step explanation:
Step 1: Solve the equation
85 = -5 + 10n
90 = 10n
n = 9
Therefore n is equal to 9
The sum of two numbers if just the numbers added together, so you would just need to do some simple algebra.
The ages added together are 68, and the opposite of addition is subtraction!
(total age) - (sarahs age) = (mothers age)
68 - 24 = 44
44 should be her mothers age!
(If you were trying to calculate the sum of their ages, you would just add them together, and 24 + 44 = 68)