MATHEMATICS MIDDLE SCHOOL

Sam solved the proportion3 = 5, but she has some mistakes in her solution.
Read her steps carefully, and then answer the questions.

Step 1: (x + 5)1 = 4(x + 2)
Step 2: x + 5 = 4x + 8
Step 3: 5 = 3x + 8
Step 4:
3= 3x
Step 5: -1=1
Mill
Part A: In which step did Sam make her first mistake?
Part B: What is Sam's first mistake?
Select one answer for Part A, and select one answer for Part B.

Answers

Answer 1

Answer:

Answer:

A. Step One

B. She multiplied straight across in the proportion instead of diagonally

Step-by-step explanation:

Answer 2

Answer:

Answer:

A. Step One

B. She multiplied straight across in the proportion instead of diagonally

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How can estimation help me to find the area of a rectangle or square

Answers

estimation can help u find the area of a rectangle or square because if you get an answer and a bar above the last number u can just estimate the answer to make stuff simple

Solve Ax+By=C for x. Provide below

Answers

Answer:

x = $(C-By)/(A)$

Step-by-step explanation:

Given

Ax + By = C ( isolate the term in x by subtracting By from both sides )

Ax = C - By ( divide both sides by A )

x = $(C-By)/(A)$

Answer:

Step-by-step explanation:

Solve Ax+By=C for x.:

Ax= - By+C

case 1 : A≠0 x = (- B/A)y+C/A

case 2 : A=0

you have : 0x = - By+C

B=0 : ox = C C = 0 infinity of x C≠0 no solutions

Can you show me how to do Thisss.

Answers

$x=0.\overline{3}\n10x=3.\overline{3}\n10x-x=3.\overline{3}-0.\overline{3}\n9x=3\nx=(3)/(9)=(1)/(3)\n\nx=-0.\overline{2}\n10x=-2.\overline{2}\n10x-x=-2.\overline{2}-(-0.\overline{2})\n9x=-2.\overline{2}+0.\overline{2}\n9x=-2\nx=-(2)/(9)\n\nx=1.\overline{7}\n10x=17.\overline{7}\n10x-x=17.\overline{7}-1.\overline{7}\n9x=16\nx=(16)/(9)=1(7)/(9)$

$x=-2.\overline{6}\n10x=-26.\overline{6}\n10x-x=-26.\overline{6}-(-2.\overline{6})\n9x=-26.\overline{6}+2.\overline{6}\n9x=-24\nx=-(24)/(9)=-2(2)/(3)\n\nx=0.4\overline{6}\n10x=4.\overline{6}\n100x=46.\overline{6}\n100x-10x=46.\overline{6}-4.\overline{6}\n90x=42\nx=(42)/(90)=(7)/(15)$

$x=-1.8\overline{3}\n10x=-18.\overline{3}\n100x=-183.\overline{3}\n100x-10x=-183.\overline{3}-(-18.\overline{3})\n90x=-183.\overline{3}+18.\overline{3}\n90x=-165\nx=-(165)/(90)=-1(5)/(6)$

Needs help soon almost due

Answers

Answer:

3: 4 2/5

4: 3

Step-by-step explanation:

#3 Work:

-(3 + 1/5) + 7 + 3/5

-3 - 1/5 + 7 + 3/5

(-3 + 7) + (-1/5 + 3/5)

4 + 2/5

Answers: 4 2/5

#4 Work:

-5 + 2 - 8 + 14

Answer: 3

Tha anwler kill hase tu bk 17492729366399

This is like so hard to me i do not get it at all!

Answers

If u don't get it, go back and do some practice problems they have in the lesson. (I am in K12 too, that's wat I do. Sometimes I even do practice problems in the middle of the test.)

a travel company has 132 tourists who are going on a boat ride. each boat holds 8 passengers. how many boats does the travel company need to book ?

Answers

ok so
total capacity that all boats ordered can carry should be at least 132
total capacity that all boats ordered can carry =number of boats times number of people each boat can carry

people each boat can caryy=8 people
x=numbe of boats
132=x times 8
divide both sides by 8
132/8=x times 8/8
16.5=1x
16.5=x
you can't order 0.5 boats so round up to nearest whole
16.5 to 17

answer is 17 boats

132/8=16.5 boats
since you cant get 16.5 boats, round up to 17 boats.

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