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3 years ago

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

Mathematics

1 answer:

horsena [70]3 years ago

7 0

Answer:

$3.85? 12/3.12 = $3.85

The answer would have came out of 3.84615384615

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

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{2x+2y=2,2(x+y)=10}A. single solution B. no solution C. infinite solutions

mixer [17]

To find the number of solutions of a system of linear equations you need to identify the slope (m) in each equation:

$y=mx+b$

-If the slope is the same in both lines the system has no solution

-If the slope is different in the lines the system has one solution

-If the equation are the same (incluided the value of b) the system has infinitely many solutions

You have the next equations:

$\begin{gathered} 2x+2y=2 \\ 2(x+y)=10 \end{gathered}$

Write the equations in slope-intercept form y=mx+b (solve for y).

First equation:

$\begin{gathered} 2y=-2x+2 \\ y=-\frac{2}{2}x+\frac{2}{2} \\ \\ y=-x+1 \end{gathered}$

Second equation:

$\begin{gathered} 2x+2y=10 \\ 2y=-2x+10 \\ y=-\frac{2}{2}x+\frac{10}{2} \\ \\ y=-x+5 \end{gathered}$ As the equations have the same slope m = -1, the system has no solution (the line doesn't cross each other)

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2 years ago

Describe what math step you would do to solve this equation?

serg [7]

Answer:

switchy switchy

Step-by-step explanation:

sin 15 = 38/x

We need to switch the sin15 and the x by multiplying both sides by x and dividing both sides by sin 15

x = 38/sin 15

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3 years ago

A store has a sale on Books the price is 17.55 for one book 16.70 each for two books 15.85 for three books and $15 for four book

kondaur [170]

Answer:

hi amos jjdaboss_01

Step-by-step explanation:

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4 years ago

A lab is conducting a test to see if people prefer chip A or chip B. The steps in the test are outlined below:

VLD [36.1K]

4 step most likely sorry if wrong

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3 years ago

Read 2 more answers

PLEASE HELP Consider eight, eight-cubic centimeter (8 cm3) sugar cubes stacked so that they form a single 2 x 2 x 2 cube. How do

victus00 [196]

$8=2*2*2\\8=2*2*2\\2*2*2*2*2*2=4*4*4\\s_{large}=4\\s_{small}=2\\\\SA_{large}=6s^2\\SA_{large}=6(4)^2\\SA_{large}=6(16)\\SA_{large}=96\\\\SA_{small}=8s^3\\SA_{small}=8(2)^3\\SA_{small}=8(8)\\SA_{small}=64\\\\96:64\\\frac{96}{32}:\frac{64}{32}\\3:2$

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3 years ago