thanks for the fact, that was really helpful !!!
Answer:
x = -5
y = 6
Step-by-step explanation:
3x + 7y = 27 --------------(I)
-3x + y = 21 -----------(II)
Add equation (I) & (II) and so x will be eliminated and we can find the value of y.
(I) 3x + 7y = 27
(II) <u> -3x + y = 21 </u> {add}
8y = 48
y = 48/8
y = 6
Plugin y = 6 in equation (I)
3x +7*6 = 27
3x + 42 = 27
3x = 27 - 42
3x = -15
x = -15/3
x = -5
Answer:
-5
Step-by-step explanation:
2 - 1 = 1
5 - 10 = -5
-5 divided by 1 = -5
Answer:
The volume is 105/512 cubic inches
Step-by-step explanation:
Given [Missing from the question]
-- Length
-- Width
-- Height
Required
Determine the volume.
The volume (V) is calculated as thus:
![V = L *W *H](https://tex.z-dn.net/?f=V%20%3D%20L%20%2AW%20%2AH)
![V = \frac{3}{8} cm* \frac{5}{8}cm * \frac{7}{8}cm](https://tex.z-dn.net/?f=V%20%3D%20%5Cfrac%7B3%7D%7B8%7D%20cm%2A%20%5Cfrac%7B5%7D%7B8%7Dcm%20%2A%20%5Cfrac%7B7%7D%7B8%7Dcm)
![V = \frac{3}{8} * \frac{5}{8} * \frac{7}{8}cm^3](https://tex.z-dn.net/?f=V%20%3D%20%5Cfrac%7B3%7D%7B8%7D%20%2A%20%5Cfrac%7B5%7D%7B8%7D%20%2A%20%5Cfrac%7B7%7D%7B8%7Dcm%5E3)
![V = \frac{3*5*7}{8*8*8}cm^3](https://tex.z-dn.net/?f=V%20%3D%20%5Cfrac%7B3%2A5%2A7%7D%7B8%2A8%2A8%7Dcm%5E3)
![V = \frac{105}{512}cm^3](https://tex.z-dn.net/?f=V%20%3D%20%5Cfrac%7B105%7D%7B512%7Dcm%5E3)
At first he had 72 then he gave 27 to his neighbor ( 27 subtract 72 = 45) and then he gave 15 to his brother ( 45 subtract 15 = 30)
he had 30 tomatoes left.