Since you cannot subtract the numerators, you have to take 1 from the whole number, so 9 turns into 8 and you add the denominator to the numerator to make the equation 8 15/9 - 4 8/9 which is 4 7/9 :).
You already have a common denominator, so you should convert to improper fractions to subtract them easier. These would be 87/9-44/9, and then you subtract the numerators and leave the denominator. 87-44=43, so your answer is 43/9, or 4 7/9, or 4.77777...
Best Method using system of equations
x=4y+8 2x-8y=-3
Answers
In this case, since one equation is in the form of x=, substitution would be best for this problem. Simply plug in 4y + 8 in place of x in the second equation, solve for y, then plug that value into the first equation to find x.
X=4y+8 2x-8y=-3
lets use the substitution method 2x-8y=-3 2(4y+8)-8y=-3 8y+16-8y=-3 16 is not equal to -3 so lets try elimination
x=4y+8 2x-8y=-3
xhange the 1st equation to standard for x-4y=8 2x-8y=-3
multiply the 1st equation to remove x 2x-8y=8 2x-8y=-3 0 is not equal to 11
therefore we cannot solve using both equations so te question's answer is undefined
a rectanguler prism is 7 meters wide,8 meters tall,and 39.5 meters long. what is the volume of the container?
Answers
volume of recangular prism=legnth times widh times height
volume=39.5 times 7 times 8=2212 m^3
What is the solution to the equation 1/3(9x-6)=2x+3
Answers
remember, you can do anything to an equaiton as long as you do it to both sides
try to get the unknown by itself
distributive property a(b-c)=ab+ac
distribute first 1/3(9x-6)=9/3x-6/3=3x-2
now we have
3x-2=2x+3 minus 2x boh sies 3x-2x-2=2x-2x+3 1x-2=0+3 add 2 both sides x+2-2=3+3 x+0=5 x=5
Jill is making lemonade. the original concentraton was 25 ml of concentrate to 2 l of water people found that too strong so she decreased the concentration to 20 ml of concentrate to 2 l of water by percentage did she decrease the concentrate
Answers
20%. The amount of change was 5ml divided by the original amount which was 25ml. 5รท25=0.2 or 20%
Answer:
20%
Step-by-step explanation: I took the quiz.
Six hundred forty eight thousandths as a decimal number
Answers
thousandths means it has 3 decimal points so it would be 0.648
.00648 would be the correct answer is goes tenths hundredth thousands