Answer:
This is often called scaling in math, used in ratios, fraction, percent's etc.
Step-by-step explanation:
There are 10 mm in a cm.
If each dime is 1 mm then 10 dimes will be 1 cm high
1 dime / 1 mm = x dimes / 10 mm Cross multiply
1 dime * 10 mm = x * 1 mm
10 dimes = x The mm cancel out.
5x + 4y = 2
-5x - 2y = 4
So if we add both the equations 5x will be eliminated.
5x + 4y - 5x - 2y = 4 + 2
4y - 2y = 6
2y = 6
y = 3
As y is 3
x will be
5x + 4 x 3 = 2
5x + 12 = 2
5x = -10
x = -2
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Answer:
working hypothesis.
Step-by-step explanation:
Hypothesis is a technique in mathematics used to identify between two events. The event is tested for hypothesis using the null hypothesis and an alternative hypothesis is set to compare the results. If there are more than one hypothesis then there is working hypothesis technique used to identify the conclusion.