Answer:
-11x
Step-by-step explanation:
-7x + (-3x) + (-x)
= -7x - 3x - x
=-11x
We can’t see the whole picture
Im assuming that you are wanting to find x. Follow these steps to get the answer
1. You need to write out the equation
2. You need to get to get the 3 away from that side with the X. To do that, you have to do the opposite of division, which is multiply. You will multiply the 3 by 3 which cancels it out.
3. Since you canceled out the 3 on the one side, you have to do it to the other.
4. Multiply 27 by 3. Which gives you 81.
5. You are left with -x=81. You’ve got to get the x all by itself, so you need to get rid of the negative sign. In order to do that, you need to divide the -x by -1. The reason for that is because you’re taking the negative part of x away, which will leave you with x.
6. Since you divided -1 out of -x, you will need to do that to the other side.
7. That leaves you with x = - 81. Which is your answer.
It's B because she would have a better chance of being accurate if she did 1000 families
Answer:
A. ¹/27
Step-by-step explanation:
✔️Volume of large sphere = ⁴/3πr³
r = 18.6 in.
Volume of large square = ⁴/3*π*18.6³ = 26954.26 in.³
✔️Volume of small sphere = ⁴/3πr³
r = 6.2 in.
Volume of small sphere = ⁴/3*π*6.2³ = 998.31 in.³
✔️Ratio of the volume of the smaller sphere to the larger sphere = 998.31 : 26954.26
= 1 : 27
Therefore, the volume of the large sphere is ¹/27 of the volume of the small sphere.