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lara [203]
3 years ago
8

This is my hw and it is due at 7!​

Mathematics
1 answer:
AlladinOne [14]3 years ago
8 0

Answer:

1. 60% (decrease by 40%)

3. 30% (decrease by 70%)

5. 250% (Increase by 150%)

7. 40% (Decrease by 60%)

9. 171.4% (increase 71.4%)

11. 152.6% (Increase by 52.6%)

Step-by-step explanation:

1. 20x = 11 = 0.55 rounds to 0.6 => 60%

3. 56 x = 14 = 0.25 rounds to 0.3 => 30%

5. 18x  = 45 = 2.5 => 250%

7. 126x = 48 = 0.38 rounds to 0.4 => 40%

9. 42x = 72 = 1.714 => 171.4%

11. 95x = 145 = 1.526 => 152.6%

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zhannawk [14.2K]
No sé esta respuesta
3 0
3 years ago
A company is expanding its building area from 16,500 square feet to 20,460 square feet. What is the percentage increase of the a
lora16 [44]

Answer: 24%

Step-by-step explanation:

A company is expanding its building area from 16,500 square feet to 20,460 square feet. To calculate the percentage increase in the area of the building space, we first find the difference. This will be:

20,460 - 16,500 = 3960

We then divide the difference by the former building area and then multiply by 100. This will be:

3960/16500 × 100

= 0.24 × 100

= 24%

The percentage increase of the area of the building space is 24%.

3 0
4 years ago
Harpreet, Sukhpreet and Komalpreet are three sisters. Sukhpreet is x years old. Harpreet is 3 years older than Sukhpreet. Komalp
Ira Lisetskai [31]

Answer:

12

Step-by-step explanation:

Givens

Harpreet        = x + 3

Sukhpreet     = x

Komalpreet   = 2*(x + 3)

Average Age = 15

Equation

[(x + 3) + x + 2*(x + 3) ] / 3 = 15                  Multiply both sides by 3

Solution

3 [(x + 3) + x + 2*(x + 3) ] / 3 = 15 * 3         Combine

 [(x + 3) + x + 2*(x + 3) ]       =   45             Remove the brackets

x + 3 + x + 2x + 6                 =   45             Combine like terms

4x + 9 = 45                                                 Subtract 9 from both sides

4x + 9 - 9 = 45 - 9                                       Combine

4x = 36                                                         Divide by 4

4x/4 = 36/4

x = 9

Answer

Harpreet is  x+ 3 = 9 + 3 = 12

3 0
3 years ago
The dot plot shows the number of visitors. Determine the median of the data set.
liubo4ka [24]

Answer: C) 62

Step-by-step explanation:

  • Median is the middle value of a sorted (in an order) data.

Total number of dots n=15  (odd)

Median = value denoted by middle number

i.e . Median = \dfrac{n+1}{2}^{th}\text{term}

i.e . Median = \dfrac{15+1}{2}^{th}\text{term}

i.e . Median = 8^{th}\text{term}

i.e. Median= Value denoted by 8th dot = 62

Hence, the median of the data set. = 62

Hence, the correct option is C) 62.

8 0
3 years ago
A fence borders a rectangular piece of land.The land has an area of 13,250 square feet and a width of 50 feet .
Alex787 [66]
  13 250+
         50
________
  13 300
4 0
4 years ago
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