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3 years ago

(2 4/10 + 8 4/5) - 3 1/5

Mathematics

2 answers:

yKpoI14uk [10]3 years ago

6 0

Answer:

Step-by-step explanation:

You can first simplify each fraction, so the it would be (24/10 + 44/5) - 16/5. And then add what is in the parenthesis, 556/5, and then subtract 16/5 to get 8.

True [87]3 years ago

5 0

Answer:

it says use a calculater maybe if u used one it would help u out.

Step-by-step explanation:

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The plot shown below describes the relationship between student scores on the first exam in a class and their corresponding scor

STALIN [3.7K]

Answer:

you average the scores by adding scores from exam 1 and exam 2 then divide it by 2 to average the exam scores

Step-by-step explanation:

7 0

3 years ago

218,457 to the nearest hundred thousands

Tomtit [17]

200,000 because the numbers in the middle are low

8 0

3 years ago

What is the solution to the system of equations?

Dovator [93]

Answer:

Step-by-step explanation:

$\left\{\begin{array}{ccc}x+3y+2z=8&(1)\\3x+y+3z=-10&(2)\\-2x-2y-z=10&(3)\end{array}\right\qquad\text{subtract both sides of the equations (1) from (2)}\\\\\underline{-\left\{\begin{array}{ccc}3x+y+3z=-10\\x+3y+2z=8\end{array}\right }\\.\qquad2x-2y+z=-18\qquad(4)\qquad\text{add both sides of the equations (3) and (4)}\\\\\underline{+\left\{\begin{array}{ccc}-2x-2y-z=10\\2x-2y+z=-18\end{array}\right}\\.\qquad-4y=-8\qquad\text{divide both sides by (-4)}\\.\qquad\qquad y=2\qquad\text{put the value of y to (1) and (3)}$

$\left\{\begin{array}{ccc}x+3(2)+2z=8\\-2x-2(2)-z=10\end{array}\right\\\left\{\begin{array}{ccc}x+6+2z=8&\text{subtract 6 from both sides}\\-2x-4-z=10&\text{add 4 to both sides}\end{array}\right\\\left\{\begin{array}{ccc}x+2z=2&\text{multiply both sides by 2}\\-2x-z=14\end{array}\right\\\underline{+\left\{\begin{array}{ccc}2x+4z=4\\-2x-z=14\end{array}\right}\qquad\text{add both sides of the equations}\\.\qquad\qquad3z=18\qquad\text{divide both sides by 3}\\.\qquad\qquad z=6\qquad\text{put the value of z to the first equation}$

$x+2(6)=2\\x+12=2\qquad\text{subtract 10 from both sides}\\x=-10$

4 0

3 years ago

HELP PLEASEEEEEEEEEEEEE

zhenek [66]

9514 1404 393

Answer:

2 1/12 days

Step-by-step explanation:

Time is the ratio of distance to speed.

(1200 mi)/(24 mi/h) × (1 day)/(24 h) = 25/12 day = 2 1/12 days

5 0

3 years ago

How many yards will the players have run ?? Please help

Whitepunk [10]

Answer:

125.3 yards

Step-by-step explanation:

He wants them to run the so 110^2+60^2 =which is 125.3.

Hope this helps plz mark brainliest :D

8 0

3 years ago