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3 years ago

In 3 stores the same detergent is on special. Which store offers the Best Buy? explain

1 answer:

7 0

$12.48/6= $2.08
$14.42/7= $2.06
$10.35/5= $2.07
So you are looking for the best deal.
The best deal would be:
B.) 7 bottles for $10.35
Hope that helps!!
Have a wonderful day!!

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Which graph shows the solution to the following system of linear inequalities?

rusak2 [61]

Answer:

See attached picture.

Step-by-step explanation:

Graph and test solutions to create the shaded region.

5 0

3 years ago

The average high temperature during the hottest month in Beijing, China, is 72°F. The average high temperature during the coldes

Angelina_Jolie [31]

Answer:

- September

Step-by-step explanation:

The temperature in Beijing, in m months after January, is given by the following equation:

$T(m) = 27\cos{((\frac{\pi}{6})(m-6))} + 45$

In which m is the number of months after January.

During which month in the year would the temperature reach 55°F?

We have to find m for which: T(m) = 55. So

$T(m) = 27\cos{((\frac{\pi}{6})(m-6))} + 45$

$55 = 27\cos{((\frac{\pi}{6})(m-6))} + 45$

$27\cos{((\frac{\pi}{6})(m-6))} = 10$

$\cos{((\frac{\pi}{6})(m-6))} = \frac{10}{27}$

Now, we apply the inverse cosine, on both sides of the equation, to find the value of m.

$\cos^{-1}{\cos{(\frac{\pi}{6})(m-6)}} = \cos^{-1}{\frac{10}{27}}$

Now, with the help of a calculator, in radians:

$\frac{\pi}{6}(m-6) = 1.19$

$\pi m - 6\pi = 6*1.19$

$\pi m = 6*1.19 + 6 \pi$

$m = \frac{6*1.19 + 6 \pi}{\pi}$

$m = 8.27$

8.27 months after January, since 8.27 + 1 = 9.28, it happens during the month of September.

5 0

3 years ago

Write a quadratic equation in the form ax^2+bx+c=0 with roots of -4 and 5

Stolb23 [73]

Step-by-step explanation:

- 4 & 5 are roots

Therefore, (x + 4) & (x - 5) are factors.

Required quadratic equation is given as:

$(x + 4) (x - 5) \\ = x(x - 5) + 4(x - 5) \\ = {x }^{2} - 5x + 4x - 20 \\ = {x}^{2} - x - 20 \\$

7 0

3 years ago

5th grade math. Correct answer will be marked brainliest.

Fofino [41]

I think the answers are 1 cubic inch, 20 cubes, 6 layers, 120 cubic inches. I think that is the answer, but I am not sure.

3 0

3 years ago

Juan is 1 1/4 feet shorter than Maria. Maria is 1/3 foot taller than Luis. If Luis is 62 inches tall , how tall are Maria and Ju

zheka24 [161]

Answer:

maria is 66 in juan is 51 in.

Step-by-step explanation:

1 1/4= 15 in.

1/3= 4 in.

Maria - 62+4= 66in.= 5 ft 6 in

Juan - 66in. - 15in. = 51

4 0

3 years ago