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4 years ago

I need help with my home work we can settle on a google meets mic on cam on

Mathematics

1 answer:

lubasha [3.4K]4 years ago

4 0

What homework do you need help with

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The varsity basketball team started selling T-shirts online in 1994. The number of T-shirts sold online, s, is modeled by the gr

boyakko [2]

100,000 t-shirts were sold

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3 years ago

two classrooms are sharing 7 packages of unit cubes. if the packages are split evenly, how many packages will each classroom rec

sp2606 [1]

Each classroom will receive 3.5 packages

4 0

3 years ago

HURRY PLEASE! I BEG ITS FOR POINTS

gtnhenbr [62]

Answer:

1 and 3

Step-by-step explanation:

Given the system of two equations

$\left\{\begin{array}{l}Px+Qy=R\\ \\Tx+Uy=V\end{array}\right.$

When you add, subtract, multiply the equations of the system, you get equivalent system of equations (with the same solution).

1. Add these two equations to get the system

$\left\{\begin{array}{l}Px+Qy=R\\ \\Px+Tx+QY+Uy=R+V\end{array}\right.\Rightarrow \left\{\begin{array}{l}Px+Qy=R\\ \\(P+T)x+(Q+U)y=R+V\end{array}\right.$

Hence, option 1 is correct.

2. Multiply the second equation by 2 and add two equations:

$\left\{\begin{array}{l}Px+Qy=R\\ \\2Tx+2Uy=2V\end{array}\right.\Rightarrow \left\{\begin{array}{l}Px+Qy=R\\ \\(P+2T)x+(Q+2U)y=R+2V\end{array}\right.$

Since $R+2V\neq R-2V,$ this option is false

3. Subtract two equations:

$\left\{\begin{array}{l}Tx-Px+Uy-Qy=V-R\\ \\Tx+Uy=V\end{array}\right.\Rightarrow \left\{\begin{array}{l}(T-P)x+(U-Q)y=V-R\\ \\Tx+Uy=V\end{array}\right.$

Option 3 is correct.

4. Since $U-Q\neq Q+U$ , option 4 is false

5. Multiply the second equation by 5 and subtract the first equation:

$\left\{\begin{array}{l}Px+Qy=R\\ \\5Tx+5Uy=5V\end{array}\right.\Rightarrow \left\{\begin{array}{l}(5T-P)x+(5U-Q)y=5V-R\\ \\Tx+Uy=V\end{array}\right.$

Since $V-5R\neq 5V-R$ , this option is false.

6 0

3 years ago

How many different outcomes are possible if you can choose between a bus or a train, full fare or concession and you can travel

Novosadov [1.4K]

3 pairs of choices give rise to 2^3 = 8 possibilities:
.. bus, full, morning
.. bus, full, afternoon
.. bus, concession, morning
.. bus, concession, afternoon
.. train, full, morning
.. train, full, afternoon
.. train, concession, morning
.. train, concession, afternoon

7 0

4 years ago

HELPPP (hopefully this on works)

Marat540 [252]

Answer:

marla is 180m from the info center and she walked 240m from the parking lot to the lake

6 0

3 years ago