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Mariana [72]
3 years ago
15

I WILL GIVE BRAINLIEST PLEASE!!! A cereal company is having a special promotion. Every 4 out of 65 boxes contains a coupon for h

alf off your next box of cereal. Suppose 455 boxes of the cereal are delivered to a grocery store. How many of them can be expected to contain one of the coupons? Set up and solve a proportion to solve the problem. Show your work. (Please help me.)
Mathematics
1 answer:
ss7ja [257]3 years ago
4 0

Answer:

28

Step-by-step explanation:

4/65 then ?/455

divide 455 by 65 to get 7

4/65=4x7/65x7(455)

4/65=28/455

therefore there are 28 boxes with the coupon out 455

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The answer would be 0.0875.

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3 0
4 years ago
Solve using quadratic formula<br> 5x^2-4x+3=0
Semenov [28]

Answer:

Impossible

Step-by-step explanation:

In 5x^2-4x+3=0, standard form, substitute these values in the quadratic formula:

a = 5; b = -4; c = 3

The quadratic formula is x = \frac{ -b ± \sqrt{b^{2} - 4ac}}{2a}

(ignore the weird capital A)

Substitute a b and c:

x = \frac{-(-4) ± \sqrt{(-4)^{2} - 4(5)(3)}}{2(5)}

Simplify:

x = \frac{4) ± \sqrt{16 - 60}}{10}

Because \sqrt{16-60} is the square root of a negative number, the answer would be imaginary.

Therefore, there are not solutions to this equation.

A solution is the same as the roots or zeroes, where the graph would cross the x-axis when graphed.

The graph never meets the x-axis. It looks like this:

3 0
3 years ago
A 2-column table with 6 rows. The first column is labeled x with entries negative 4, negative 2, 0, 2, 4, 6. The second column i
Elina [12.6K]

Answer:

Option C.

Step-by-step explanation:

The given table is

x   f(x)

-4    0

-2    2

0    8

2    2

4    0

6   -2

A graph of a function intersect x-axis if the function contains the points whose y-coordinate is 0.

From the given table it is clear that the value of f(x) is 0 at x=-4 and x=4. It means, the continuous function intersect the x-axis at two point (-4,0) and (4,0).

Therefore, the correct option is C.

8 0
3 years ago
Read 2 more answers
Como resolver (+7).(-5)?<br><br> E favor responder com a expressao montada?<br> Obrigado!!!
Contact [7]

Tu tá no brainly americano, irmão.

7 \times  - 5 =  - 7 - 7 - 7 - 7 - 7 =  - 35

7 0
4 years ago
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