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dangina [55]
3 years ago
13

Paige Sanders bought a dozen eggs at a store for 3.65. She bought the same size eggs the next week at the same store for 2.92. W

hat was the percent of decrease?
THANKS TO WHOEVER SOLVES THIS>
Mathematics
1 answer:
algol133 years ago
6 0
The percent of decrease is $0.73. To get that subtract 3.65-2.92 which equals 0.73. 

Hope it helps
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In triangle △ABC, ∠ABC=90°, BH = altitude
Ainat [17]

Answer: The exact length of segment HC is sqrt(3) units

The approximate length is roughly 1.73205080756888 (round that however you need to)

==============================================

Work Shown:

Let x = length of HC

Since AH = 3*HC, this means AH = 3*x

Draw out the picture. This step is optional but helpful in my opinion. The drawing is attached below.

After adding in the altitude BH, we have three similar triangles. So we can form the proportion shown below to solve for x

HC/BH = BH/AH

HC/3 = 3/AH ... replace BH with 3

x/3 = 3/AH ... replace HC with x

x/3 = 3/(3x) ... replace AH with 3x

x/3 = 1/x ... reduce

x*x = 3*1 ... cross multiply

x^2 = 3

x = sqrt(3) ... which is shorthand for "square root"

HC = sqrt(3)

HC = 1.73205080756888 which is approximate

3 0
3 years ago
Find the error in the following sample of work, if one exists.
ch4aika [34]

Answer:

D. There is no mistake.

Step-by-step explanation:

The following lines show the process of factorization by using common factor.

<u>Line 1:</u>

In line 1, the equation is given and is completely fine.

y^{2}+8xy+2y+16x=0

The only thing missing was equate to zero, but the options below talk about correct factors only, therefore this can't be considered as a mistake and can be ignored completely.

<u>Line 2:</u>

In line 2, the terms are grouped, from which we can factor out common terms.

(y^{2}+8xy)+(2y+16x)=0

This is also fine.

<u>Line 3:</u>

In line 3, the common term y is taken out from group 1 and 2 from other group.

y(y+8x)+2(y+8x)=0

which is exactly what is given in line 3.

<u>Line 4:</u>

In line 4 the common factors can be seen and easily split into 2 factors.

(y+2)(y+8x)=0

which is exactly what is given in line 4.

Options:

A. The grouping is correct in line 2. So this option is does not hold.

B. Common factor was factored correctly from group 1. So this option does not hold.

C. Common factor was factored correctly from group 2. So this option does not hold.

D. There is no mistake. This is correct. Thus we choose this option as correct answer.

3 0
3 years ago
PPPPLLLSSS HELP THIS IS WORTH SIXTY PERCENT OF MY GRADE. I DONT GET HOW SINCE IT ONLY TWO QUESTIONS BUT IT IS. PLEASE HELP
anastassius [24]

Answer:

  • 122; 19

Step-by-step explanation:

<h3>#1</h3>
  • 15 ⋅ 6 - 2² ⋅ 8 + 4³ =
  • 15 ⋅ 6 -  4 · 8 + 64 =
  • 90 - 32 + 64 =
  • 58 + 64 =
  • 122
<h3>#2</h3>
  • 2³ + 2² ⋅ 2 + 6 - 2¹ ⋅ 2⁰ - 1 =
  • 8 + 4  · 2 + 6 - 2 · 1 - 1 =
  • 8 + 8 + 6 - 2 - 1 =
  • 22 - 2 - 1 =
  • 20 - 1 =
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5 0
3 years ago
1/4 divided by 6 is ___
creativ13 [48]

Answer:

1/24

Step-by-step explanation:

1/4*1/6=1/24

7 0
3 years ago
Evaluate the expression
Dmitry_Shevchenko [17]

Answer: the answer would be 66

Step-by-step explanation:

4 0
3 years ago
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