Answer: Answer for 27 , It dropped 38 feet, (down) so -38 feet
Answer for 28, The difference between 4 and -7 is 11
Step-by-step explanation:
25 + 13 = 38 (but it was going down so its negative)
4 + 7 = 11
Answer:
1 kg of 30% gold and 3 kg of 10% gold
Step-by-step explanation:
Let us take "x" kg of 30% gold, and
"y" kg of 10% gold
We need to make 4 kg of 15% gold, that would be:
4(15%) = 4 (15/100) = 4(0.15) = 0.6kg
We can now write an equation as:
30%x + 10%y = 4(0.15)
0.3x + 0.1y = 0.6 <u>(equation 1)</u>
Also, we know there will be 4 kg from "x" and "y", so we can write:
x + y = 4
or x = 4 - y
We substitute this into equation 1 and solve for y first:
0.3x + 0.1y = 0.6
0.3(4 - y) + 0.1y = 0.6
1.2 - 0.3y + 0.1y = 0.6
0.2y = 0.6
y = 3
And x = 4 - y, x = 4 - 3 = 1
So,
1 kg of 30% gold and 3 kg of 10% gold
<h3>False</h3>
<em><u>trust</u></em><em><u> me</u></em><em><u> </u></em><em><u>the </u></em><em><u>answer</u></em><em><u> is</u></em><em><u> </u></em><em><u>false</u></em><em><u> </u></em><em><u>:</u></em><em><u>)</u></em>
Answer:4
Step-by-step explanation:
First distributive 1.5 to x+4 and 4.5 to x-2. You get 1.5x+6-3 = 4.5x-9. Next you need to move all the variable terms to one side. You can do either, it doesn't matter, but I subtracted 1.5 x to each side of the equation. You get left with 6-3 = 3x-9. Solve 6-3 and you get 3=3x-9. You 9 to both sides of the equation. You get 12=3x. You divide by 3 on both sides and get 4=x/x=4.
Answer:
i think it is g(x)=x^3/8 -1
Step-by-step explanation:
