One year, an athlete won a gold medal with a long jump of some meters. Several years later, another athlete won a gold medal with a
long jump of 7.12 meters. The second jump was 0.13 meters longer
than the first. How long was the first jump? Write an equation
and solve.

6.99 meters

Step-by-step explanation:

For this we have to use subtraction:

So if the second jump was .13 meters longer then the first and we know the second jump was 7.12 meters, we have to subtract 7.12 by .13 to get the length of his/her's first long jump. So our equation is 7.12-.13=length of first jump. So we end up getting 6.99=length of first jump.

Hope this helps! :D

phosphate, calcium ion, chloride ion, neon atom

step-by-step explanation: