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3 years ago

Which package has the lowest cost per ounce of rice ( 12, 18, 7)

Mathematics

1 answer:

Katarina [22]3 years ago

4 0

The package with the most low cost is 7.

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When the price of a dozen eggs is raised by$2.4, 15 fewer eggs can be bought with $60

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Where is the question? Is it a true or false?

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3 years ago

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Heart 1 is translated 3 units down to heart 2. Which shows this transformation?

Marina CMI [18]

Answer:

It is the 4th image

Step-by-step explanation:

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What are the values of h and x in the right triangle? Explain.

alexandr402 [8]

Answer:

h = 60 ; x = 25

Step-by-step explanation:

You are going to want to use Pythagorean Theorem to solve these.

Pythagorean Theorem: a² + b² = c²

h² + 144² = 156²

h² + 20736 = 24336

h² = 3600

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3 0

3 years ago

15a2-6ab-8a2 - 5ab + 20+ a? - ab - 31 -

Crazy boy [7]

-12ab+7a power of 2 +a 11

6 0

3 years ago

Please help

ASHA 777 [7]

Answer:

(-6,4)

Step-by-step explanation:

The equations are:

$x^2+4y^2=100\\4y-x^2=-20$

Solving for x^2 of the 2nd equation and putting that in place of x^2 in the 2nd equation we have:

$4y-x^2=-20\\x^2=4y+20\\-------\\x^2+4y^2=100\\4y+20+4y^2=100$

Now we can solve for y:

$4y+20+4y^2=100\\4y^2+4y-80=0\\y^2+y-20=0\\(y+5)(y-4)=0\\y=4,-5$

So plugging in y = 4 into an equation and solving for x, we have:

$x^2=4y+20\\x=+-\sqrt{4y+20} \\x=+-\sqrt{4(4)+20} \\x=+-\sqrt{36} \\x=6,-6$

So y = 4 corresponds to x = 6 & x = -6

The pairs would be

(6,4) & (-6,4)

<u><em>we see that (-6,4) falls in the 2nd quadrant, thus this is the solution we are looking for.</em></u>

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3 years ago