1: Solve for either x or y in one of the equations. So x + y = -1 is y = -x -1
2: substitute the new equation in the opposite equation. So x - (-x - 1) = 7
3: distribute the negative. X + x + 1 = 7
4: combine like terms. 2x + 1 = 7
5: solve for x. Subtract 1 on both sides. 2x = 6
6: divide by 2 to get x by itself. X = 3
7: plug the new value of x into one of the ORIGINAL equations. 3 + y = -1
8: solve for y. Subtract 3 on both sides.
Y = -4
9: the solution is written as (x,y) so the solution would be (3, -4)
Answer:
61 hope this helps
Step-by-step explanation:
<span>investment A has 500 (for April) + 600 (for May) + 400 (for June) with a total of 1500.
</span><span>investment B has 400 (for April) + 300 (for May) + 500 (for June) with a total of 1200
</span><span>Converting each amount to ratios gives investment A: 33%, 40%, and 27% respectively. Whereas investment B ratio is: 33%, 25%, and 42%. Hence, the largest month to month change is June.</span>
They put some extra in so they now their not getting ripped out of their money
Answer
More than 5 minutes but no longer than 8.
Step-by-step explanation:
Sea otters have been known to stay submerged for more than 5 minutes at a time. River otters, however, can hold their breath for up to 8 minutes. The increased time underwater improves otters' opportunity to sense prey and forage for food.
