Answer:
399.9 seconds
Step-by-step explanation:
First, do 20 divided by 150 to get the unit rate of how many seconds it takes for one meter and get 0.1333.
Next, multiply 0.1333 by 3,000 so you can get how long it takes for her to bike 3,000 meters and get 399.9.
Answer:
3802 8/9
Step-by-step explanation:
So what you do is you make 52 1/3 and 72 2/3 improper fractions like 157/3 and 218/3. Then you multiply and get 34218/9. Then you simplafiy and get 3802 8/9
Answer:
g(x)=5x+7
Step-by-step explanation:
f(x)+g(x)=9x+4
We are given f(x)=4x-3.
So we insert 4x-3 for f:
4x-3+g(x)=9x+4
Subtract 4x on both sides:
-3+g(x)=5x+4
Add 3 on both sides:
g(x)=5x+7
Check:
f(x)+g(x)
=(4x-3)+(5x+7)
=(4x+5x)+(-3+7)
=(9x) +(4)
=9x+4
Bingo. We did it! :)
<span><span><span>x2</span>+2x−22=0</span><span><span>x2</span>+2x-22=0</span></span>Use the quadratic formula to find the solutions.<span><span><span>−b±<span>√<span><span>b2</span>−4<span>(ac)</span></span></span></span><span>2a</span></span><span><span>-b±<span><span>b2</span>-4<span>(ac)</span></span></span><span>2a</span></span></span>Substitute the values <span><span>a=1</span><span>a=1</span></span>, <span><span>b=2</span><span>b=2</span></span>, and <span><span>c=−22</span><span>c=-22</span></span> into the quadratic formula and solve for <span>xx</span>.<span><span><span>−2±<span>√<span><span>22</span>−4⋅<span>(1⋅−22)</span></span></span></span><span>2⋅1
there</span></span></span>
