112 is what it should be set less than or equal to because she needs at least this much money for the dress. So 112 should be equal to or less than the amount she earns total. 112≤? On the other side you need to put 40 because this is what she already has. You need to add 40 to 9x, x being the amount of hours she works. so your inequality is 112 ≤ 9x +40. From there subtract 40 on both sides and then divide by 9. Your answer should be 8 hours.
Hello, Assume x the smallest side. y the third side z the largest side z=2x-4 y=10+x x+y+z=86 ==>x+(10+x)+(2x-4)=86 ==>4x=86-10+4 ==>x=20, y=30 and z=36
3×15=15 4×7=28 The only multiple of 10 between these two numbers is 20. 20 does indeed have factors that are odd or even so we can conclude that 20 must be the answer.
