Answer:18
Step-by-step explanation:2(18)+3=1/2(18)+30
36+3=9+30
39=39
3.64 is the estimated difference
Answer:
<em>25</em><em> </em>
Step-by-step explanation:
let's solve,
=》
![5 {}^{ \frac{ - 5}{2} } \times 5 { \frac{9}{2} }^{}](https://tex.z-dn.net/?f=5%20%7B%7D%5E%7B%20%5Cfrac%7B%20-%205%7D%7B2%7D%20%7D%20%20%5Ctimes%205%20%7B%20%5Cfrac%7B9%7D%7B2%7D%20%7D%5E%7B%7D%20)
=》
![{5}^{ \frac{ - 5}{2} + \frac{9}{2} }](https://tex.z-dn.net/?f=%20%7B5%7D%5E%7B%20%5Cfrac%7B%20-%205%7D%7B2%7D%20%2B%20%20%5Cfrac%7B9%7D%7B2%7D%20%20%7D%20%20)
=》
![5 {}^{ \frac{4}{2} }](https://tex.z-dn.net/?f=5%20%7B%7D%5E%7B%20%5Cfrac%7B4%7D%7B2%7D%20%7D%20)
=》
![5 {}^{2}](https://tex.z-dn.net/?f=5%20%7B%7D%5E%7B2%7D%20)
=》
![25](https://tex.z-dn.net/?f=25)
<em>glad</em><em> </em><em>to</em><em> </em><em>help</em><em> </em><em>you</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em>
The answer is 15x good luck on your homework buddy
Let the numbers be 7x and 4x
According to question
7x-4x =57
3x =57
X=57/3
X=19
So the numbers are
7x=7*19=133
4x=4*19=76