Abus traveled at an average speed of 52 miles per hour for 4 hours. a truck traveled for 3 hours at an average speed of 63 miles per hour.
which method explains how to calculate the distance the bus and truck traveled altogether?
a.
step 1 divide: 52 ÷ 4.
step 2 divide: 63 ÷ 3.
step 3 add the two quotients.
b.
step 1 divide: 52 ÷ 4.
step 2 divide: 63 ÷ 6.
step 3 subtract the two quotients.
c.
step 1 multiply: 52 × 4.
step 2 multiply: 63 × 3.
step 3 add the two products.
d.
step 1 multiply: 52 × 4.
step 2 multiply: 63 × 3.
step 3 subtract the two products.

The rate of decay of a radioactive substance depends upon the amount present initially. the mass y (mg) of the radioactive substance cobalt-60 present in a sample at time t (years) is represented by the exponential equation y=50e −0.1315 t . answer the following questions in complete sentences. 1. how does the exponential equation above compare to the equation for simple interest that is compounded continuously? explain the similarities. 2. what is the initial amount of cobalt-60 in the sample? 2. how much cobalt-60 is left after 8.4 years? show your work. 3. what would be the y-intercept of the graph? what does it represent? 4. after how many years will the amount of cobalt-60 left be 6.25 mg? explain what happens to the cobalt-60 after 50 years? 5. discuss some “real-world” examples and uses of cobalt-60

What are the equivalent ratios for 24/2= /3= /5.5=108/ = /15

What happens to the area as the sliders are adjusted? what do you think the formula for the area of a triangle is divided by 2?