The system would equal (1.65,-0.25)
You can use substitution for this. But first we need to put one of the equations into the value of y or x. We can use 5x+y=8 and solve for the value of y. Subtract 5x on both sides and you’ll get the value of y which will look like y=-5x+8.
Next substitute in y for 5y in 5x+5y=7 so that you get 5x+5(-5x+8)=7. Next distribute and you’ll get 5x-25x+40=7, add like terms and you’ll get -20x+40=7. Next you want to subtract by 40 on both sides and you’ll get -20x=-33. Isolate x by dividing by -20 on both sides and you’ll get x=33/20 or 1.65.
Next that you have the x value solve for y by plugging in 1.65 for x in 5x+y=8 and you’ll get 5(1.65)+y=8, distribute and subtract 8.25 on both sides and it will leave you with y=-0.25.
Answer:
The statement is "False."
Explanation:
Doing cardiovascular exercise is essential as doing strength training. Both have <em>different targets.</em> Strength training targets the <u>muscles of the body.</u> It promotes bone growth and makes you stronger. On the other hand, cardio exercise targets the <u>heart rate</u>. The more the heart pumps, the more oxygen the blood receives in the body.
Strength training gives you an<em> afterburn effect </em>that allows you to keep burning calories even after you workout, while cardio exercise allows you to burn more calories in a shorter span time–especially when you're doing <em>high-intensity exercise</em>.
Clearly, both strength training and cardio exercise are essential.
Because the more someone exerts themselves the more oxygen and carbon dioxide out put ratio is greater. The more you run and the faster you run the more oxygen you loose which is supplied to your muscles including your lungs.
