Answer:
x = 25
Step-by-step explanation:
Step 1: Make a proportion
40/20 = 50/x
Step 2: Solve your proportion
2 = 50/x
2x = 50
x = 25
Answer:
0 <x> 18
Step-by-step explanation:
Step 1 :
Equation at the end of step 1 :
(4 • (x - 9) + 6) - 42 > 0
Step 2 :
Step 3 :
Pulling out like terms :
3.1 Pull out like factors :
4x - 72 = 4 • (x - 18)
Equation at the end of step 3 :
4 • (x - 18) > 0
Step 4 :
4.1 Divide both sides by 4
Solve Basic Inequality :
4.2 Add 18 to both sides
x > 18
5x + 50 / x + 5 • 1/x + 10
<span><span><span><span> 5x</span>+<span><span><span>50x</span></span></span></span>+<span><span><span><span><span>(5)</span><span>(1)</span></span>x</span></span></span></span>+10</span><span>
</span><span>
</span><span> =<span><span><span><span><span>5<span>x^2</span></span>+<span>10x</span></span>+55 / </span>x</span></span></span>
Answer:
54°
Step-by-step explanation:
180° - 52° - 30° = 98°
180 - 98° - 28° = 54°
Answer:
r<4
Step-by-step explanation:
-3(r-4)>0 step 1: distribute the -3
-3r+12>0 explain: -3 times r =-3r, -3 times -4 = 12
next, isolate the -3r by putting 12 on the other side
-3r+12>0 subtract 12 from both sides
-3r>-12 now, divide both sides by -3 (you have to flip the > because you are dividing by a negative) -12 divided by -3 is 4
so you should end up with r<4
