geometry chapter 1 test answers
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Answers:1. I think because most people are either good at algebra, but struggle with geometry or they are good at geometry and they are good at algebra. 2. Well once you get into it you should find that it involves a lot of algebra. Just take good notes, listen in class, ask questions, and ask your teacher for extra help.
Answers:Elijah, thats who they hoped he would be, a forerunner to the messiah, John came to help establish a new covenant. To teach people to start changing from the inside out, he came to teach them that the old way of sacrificing animals did not take away the guilt of sin and that a better way was coming, Jesus was Perfect, and as a lamb led to the slaughter he opened not his mouth and died the terrible death on the Cross as a Sacrifice for our sins. To take away the sins of the world, Praise and Glory to the Lamb!!!
Answers:1. the sum of the digits of a positive two-digit number is 13. if twice the first digit is 1 less than the second digit, what is the two-digit number? I assume the first digit is the units digit. If it is not, change the variables t=tens digit u=units digit t+u=13 2u+1=t --- 3u+1=13 u=4 t=9 94 =============================== 2. How many ounces of a 20% salt solution should be mixed with a 10% salt solution to produce 45 ounces of a 14% salt solution? x=amount of 20% solution y=amount of 10% solution x+y=45 .2x+.1y=.14(45) .2x+.1(45-x)=.14(45) .2x+4.5-.1x=6.3 .1x-1.8 x=18 y=27 18 ounces = amount of 20% solution 27 ounces = amount of 10% solution ================================== 3. With a tailwind, a jet flew 2000 miles in 4 hours, but the return trip against the same wind required 5 hours. Find the jet's speed and the wind speed. x=jet's speed y=wind's speed 4(x+y)=2000---->x+y=500 5(x-y)=2000----->x-y=400 add 2x=900 x=450 y=50 450 mph=jet's speed 50 mph=wind's speed ================================= 4. A grocery store sells a mixture of peanuts and raisins for $1.75 per pound. If peanuts cost $1.25 per pound and raisins cost $2.75 per pound, what amount of raisins and peanuts go into 1 pound of the mixture? r=raisins p=peanuts r+p=1 125p+275r=175(1) 125(1-r)+275r=175(1) 125-125r+275r=175 150r=50 r=1/3 1/3 pound of raisins 2/3 pound of peanuts
Answers:3. Area of this right triangle is 6*12/2=36 But the same area may be computed multiply hypotenusa with the length of the altitude from the right angle to the hypotenuse and divide by 2 then this length is 36*2/13 The real problem is : 13,12 and 6 are not form a right triangle. because 12^2+6^2 is not equal with 13^2