Answer:
A chemical reaction happens when substances break apart or combine to form one or more new substances.
Step-by-step explanation:
New substances form when bonds break and new bonds form. The chemical properties of the new substances are different from those of the original substances
Answer:
a) 24.64 currency units, 27.56 currency units
b) 61 years
Step-by-step explanation:
We are given the following in the question:
The amount it takes to equal the value of 1 currency unit in 1919 can be estimated by the linear function V given by
where x is the number of years since 1990.
a) Amount in 2014
We put x = 24
In 2014, it will take 24.64 currency units to equal the value of 1 currency unit in 1919.
Amount in 2021
We put x = 31
In 2021, it will take 27.56 currency units to equal the value of 1 currency unit in 1919.
b) We put V(x) = 40
Thus, 40 currency units in 2051 about 61 years after 1990 will be equal to equal 1 currency unit in 1919.
1. slope=3
y-int=0
2.slope=-4/5
y-int=4