On May 22, 1960, an earthquake in Chile measured 9.5 on the Richter scale. On February 27, 2010, another earthquake in Chile mea
2 answers:
Answer:
Step-by-step explanation:
We can use Richter scale formula
where
I is intensity
R is Richter scale value
First case:
On May 22, 1960, an earthquake in Chile measured 9.5 on the Richter scale
so, we get
Second case:
On February 27, 2010, another earthquake in Chile measured 8.8 on the Richter scale
so, we get
we can subtract both equations
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Answer:
<h2>88 cars</h2><h2>132 trucks</h2>Step-by-step explanation:
This is a ratio problem, the ratio of cars to trucks
for every 4 cars, there are 6 trucks
represented as a ratio we have 4:6
1. how many of them are cars
applying the part to whole strategy we have
4+6 = 10
let cars be x
2. how many of them are trucks?
let trucks be y
Answer:
y = 2x + 60
Step-by-step explanation:
Use the equation for a line: y = mx + b
Where
x and y are points on the graph
and m is the slope, and can be found by finding
so the slope is 10/5 or 2, since the graph goes up by 10 and over by 5.
so plug into the equation, and you get y = 2x + b
Next, pick a point on the graph, and plug in the x and y coordinates,
for example:
(x,y) = (5,70)
so, 70 = 2(5) + b
then solve for b
60 = b
Then rewrite the equation
y = 2x + 60