(1 point)
1. the biggest problem when using metals (or cowry shells) for trading is
no one can agree on an exchange rate
large amounts become very heavy to carry around
they break over time
people cannot trust their value
2. the gold standard is__ (1 point)
paper currency based
no longer used by many countries
used by all countries today
based on measurements in pounds
3. when using metal as the exchange basis, two coins must have the same value if
(1 point)
they are the same weight but different metals
they are different weights but the same metals
they are different weights but different metals
they are the same weight and the same metal
4. if gold is currently trading at $800.00/oz. and you inherited a gold coin worth $1600.00, how much does
the coin weigh?
2 oz.
4 oz.
24 oz.
12 oz.

in simplified version   it would be x ≤-4

step-by-step explanation:

multiply each term in x ≤-4 by -1

step-by-step explanation:

your mom

c.   x=2.4cm

step-by-step explanation:

similar triangles are triangles which have the same shape but not the same size. this means their angle measures are equal but their side lengths are not instead they are proportional. to solve, we will set up a proportion and solve.

a proportion is two equal ratios set equal to each other. we form the ratios by finding corresponding sides (sides which match to each other on both triangles by their position). out ratios will be one side of the small triangle over the corresponding side on the big triangle as shown below:

.

to solve the proportion, we'll cross multiply by multiplying numerator with denominator across the equal sign.