<span>Let x be the speed of the first car, then (x + 10) is the speed of the second car.
We can write the equation by the condition of the problem:
</span>
mph s<span>peed of the first car
</span>
Then 30+10=40 mph speed of the second car
Answer: 30mph and 40 mph.
<span>I hope this helps.</span>
STEP-BY-STEP SOLUTION:
Let's first establish the inequality which we need to solve as displayed below:
y + 1 < 3
To begin with, we need to make ( y ) the subject by keeping it on the left-hand side of the inequality and placing all other numbers on the right-hand side of the equality as displayed below:
y + 1 < 3
y < 3 - 1
Then, we simply simplify / solve as displayed below:
y < 3 - 1
y < 2
ANSWER:
y < 2
Answer:
20 feet long
Step-by-step explanation:
To solve this you need to use the Pythagorean theorum, 
, where c is the length of rope needed and A and B are the side lengths. Think of it like a right triangle.
So, the equation is
Which is then
And the possible values of c are 20 and -20.
From here we know the answer cannot be -20 because you cannot have a negatively long length of rope, so the answer must be 20 feet.
Math:
Step #1: Simplify both sides of the inequality.
<span>30><span>5z−15
</span></span>Step #2: Flip the equation.
<span><span>5z−15</span><30
</span>Step #3: Add 15 to both sides.
<span><span><span>5z−15</span>+15</span><<span>30+15
</span></span><span>5z<45
</span>Step #4: Divide both sides by 5.
<span><span>5z/5=45
Your Answer:
</span></span><span>z<9</span>
The answer is A.
Since each question answered right would add 3 points, the amount of questions answered correctly would be x. You then going to add that to his original score, 75. He needs at least a 90, so 90 is the lowest test grade he can afford. Therefore, 90 is should be the greatest number since there are no less than, equal to and such. Knowing that, the answer would be A
Hope this helps!
