All you do is solve for z. So 8z-13=7. To solve for a variable you have to do the opposite to cancel out the numbers on each side. First you add 13 over to 7 to cancel out 13 on the z side. So 8z=20 is what you have left. Then you divide 8 on both sides to cancel out 8 on the z side. what you are left with is z=2.5. Lastly you plug and check. 8(2.5) - 13 = 7, 20-13=7. And thats correct so z is 2.5.
Answer:532
Step-by-step explanation:Do 594(birds)-62(snakes)=532
There are 532 more birds than snakes.
Complete the math in the brackets (4a + 1)
Multiple each term in the brackets by 4a
4a (8a - 4a + 1)
4a (4a + 1)
16a^2 + 4a
The number of monkeys in the tree are 24.
<h3>What are percentages?</h3>
Percentage is the fraction of an amount expressed as a number out of hundred. The sign used to represent percentages is %.
<h3>How many monkey are in the tree?</h3>
Number of monkeys in the tree = percent x total number of monkeys
60% x 40
0.6 x 40 = 24
To learn more about percentages, please check: brainly.com/question/25764815
Answer:what am I doing
Step-by-step explanation:
