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seropon [69]
3 years ago
5

A grocery store reduced the price of a loaf of bread from $2.80 to $2.73. Find the percent decrease. Round your answer to one de

cimal place.
Mathematics
2 answers:
MissTica3 years ago
6 0

Answer:

2.6%

Step-by-step explanation:

(2.80-2.73)/2.73

0.07/2.73

0.02564

Convert to Percentage

0.02564 times 100

2.564%

To one decimal place

In rounding up numbers, numbers 1 to 4 are rounded up to zero, while numbers 5 to 9 are rounded up to 1.

To one decimal place, we look at the second decimal place which is 6. Digit 6 is rounded up to 1, which will be added to the first decimal place, 5+1=6

Hence we have 2.6

Answer is 2.6%

Mandarinka [93]3 years ago
3 0

Answer:

2.5%

Step-by-step explanation:

First get the decrease .

The decrease is the difference between the two prices .

Decrease = $2.80 - $2.73

= $0.07

% decrease = decrease/initial price

That’s

% decrease = $0.07/$2.80 x 100%

= 0.025 x 100%

= 2.5%

The percentage decrease is 2.5%

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A transformation T : (x, y) → (x + 3, y + 1). Find the preimage of the point (4, 3) under the given transformation. (7, 4) (1, 2
motikmotik

Answer:

(1, 2)

Step-by-step explanation:

Remember that the final shape and position of a figure after a transformation is called the image, and the original shape and position of the figure is the pre-image.

In our case, our figure is just a point. We know that after the transformation T : (x, y) → (x + 3, y + 1), our image has coordinates (4, 3).

The transformation rule T : (x, y) → (x + 3, y + 1) means that we add 3 to the x-coordinate and add 1 to the y-coordinate of our pre-image. Now to find the pre-image of our point, we just need to reverse those operations; in other words, we will subtract 3 from the x-coordinate and subtract 1 from the y-coordinate.

So, our rule to find the pre-image of the point (4, 3) is:

T : (x, y) → (x - 3, y - 1)

We know that the x-coordinate of our image is 4 and its y-coordinate is 3.

Replacing values:

                (4 - 3, 3 - 1)

                (1, 2)

We can conclude that our pre-image is the point (1, 2).

6 0
3 years ago
WILL GIVE BRAINIEST Which of the following is NOT a perfect square? Question 3 options: 36 25 49 81 35 144 100
jok3333 [9.3K]

Answer:

35

Step-by-step explanation:

The way I know is because I memorized every square up to 33.

BUT that's probably not helpful to you.

Remember that every perfect square has an odd number of factors. I'm not going to list them all out, but the factors of 35 are 1, 5, 7, and 35, giving it an even number of factors. All the rest have an odd number of factors because of the property of a perfect square: a number times itself gives a perfect square, but that number only counts as 1 factor.

4 0
3 years ago
Rewrite (2x+1)(x-2) using the distributive property then simplify
Contact [7]
(2x+1)(x-2) = 2x^2 - 4x +x -2= 2x^2-3x-2
3 0
3 years ago
What is the product of 7/8 x 4/7
DIA [1.3K]

Answer:

1/2

Step-by-step explanation:

7x4= 28

8x7= 56

simplify: 28/56=1/2

8 0
2 years ago
Read 2 more answers
What number should be added to both sides of the equation to complete the square?<br> x2 + 12x = 11
makkiz [27]

given:

x² + 12x = 11

perfect square:

a² + 2ab + b²

a² = x² ⇒ x * x

2ab = 12x ⇒ 2(6)x

b² = 6² ⇒ 36

x² + 12x + 36 = 11 + 36

(x+6)(x+6) = 47

Both sides must be added with 36.

6 0
3 years ago
Read 2 more answers
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