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2 years ago

What is the unit price for 12 apples for $3.12?

Mathematics

2 answers:

Zigmanuir [339]2 years ago

7 0

Answer:

The answer would have came out of 3.84615384615

Then round up the answer to 3.85. So the unit price is $3.85

Lina20 [59]2 years ago

6 0

Each apple is 26 cents
3.12/12

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What’s the cos a? what’s the tan a? what’s the sin a ?

Verizon [17]

Cos A) 16/20 or 4/5
Tan A) 12/16 or 3/4
Sin A) 12/20 or 3/5

8 0

2 years ago

7. Holly plays pool on Sundays. She pays $6.50 for admission and $3.50 for

ollegr [7]

Answer:

3.50x+6.50=y

Step-by-step explanation:

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2 years ago

The first astronaut on mars tossed a rock straight up.the height h measured in feet after tt seconds is given by function h(t)=-

Artemon [7]

Answer:

h'(t)= -12

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3 years ago

Cole bought a cutting board online. It cost $23 plus 10% shipping and handling. What was the total cost?

Rashid [163]

Cole would pay $25.30
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Hope this helped

3 0

3 years ago

Solve the system of equations by transforming a matrix representing the system of equation into reduced row echelon form.

Gekata [30.6K]

Take the augmented matrix,

$\left[\begin{array}{ccc|c}2&1&-3&-20\\1&2&1&-3\\1&-1&5&19\end{array}\right]$

Swap the row 1 and row 2:

$\left[\begin{array}{ccc|c}1&2&1&-3\\2&1&-3&-20\\1&-1&5&19\end{array}\right]$

Add -2(row 1) to row 2, and -1(row 1) to row 3:

$\left[\begin{array}{ccc|c}1&2&1&-3\\0&-3&-5&-14\\0&-3&4&22\end{array}\right]$

Add -1(row 2) to row 3:

$\left[\begin{array}{ccc|c}1&2&1&-3\\0&-3&-5&-14\\0&0&9&36\end{array}\right]$

Multiply through row 3 by 1/9:

$\left[\begin{array}{ccc|c}1&2&1&-3\\0&-3&-5&-14\\0&0&1&4\end{array}\right]$

Add 5(row 3) to row 2:

$\left[\begin{array}{ccc|c}1&2&1&-3\\0&-3&0&6\\0&0&1&4\end{array}\right]$

Multiply through row 2 by -1/3:

$\left[\begin{array}{ccc|c}1&2&1&-3\\0&1&0&-2\\0&0&1&4\end{array}\right]$

Add -2(row 2) and -1(row 3) to row 1:

$\left[\begin{array}{ccc|c}1&0&0&-3\\0&1&0&-2\\0&0&1&4\end{array}\right]$

So we have $\boxed{x=-3,y=-2,z=4}$ .

3 0

2 years ago