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3 years ago

5-2.5 , how is this 2.5?

Mathematics

2 answers:

Y_Kistochka [10]3 years ago

5 0

Well 2.5 + 2.5 is 5 so 5 - 2.5 is 2.5

vovikov84 [41]3 years ago

5 0

Step-by-step explanation:

Well the reason why this is 2.5 is show here.

arrange them like they're tens

- 25

--------

Then replace the decimals back

25 turns into 2.5

it's just normal subtraction mate.

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Keisha swims 18 ft from one side of her circular pool to the other, swimming straight through the center. She then swims one tim

elena-s [515]

Answer:

Swimming one time around the pool is 56.5 ft

Step-by-step explanation:

Swimming 18 ft from one side of her circular pool to the other, swimming straight through the center means the circular swimming pool has a diameter of d=18 ft.

The circumference of the circle is calculated using:

$c = \pi \: d$

where d=18 is the diameter and π=3.14 as given.

We substitute the values to get:

$c = 3.14 \times 18$

$c = 56.52$

We approximate to the nearest tenth to get:

$c = 56.5ft$

6 0

3 years ago

1. A partially completed chart shows the hierarchy of a set of polygons.

lana [24]

Answer:

Follows are the solution to this question:

Step-by-step explanation:

Please find the attached file for the complete solution.

5 0

3 years ago

I really need help with this question. Can I get a explanation too?

aniked [119]

Answer:

Step-by-step explanation:

Find the surface area:

Bottom base: 57 × 27 = 1,539

Top base: 21 × 27 = 567

Rectangular face: 23 × 27 = 621

Trapezoidal face: (21 + 57) ÷ 2 × 15 = 585

1,539 + 567 + 621 + 621 + 585 + 585 = 4,518

The surface area is 4,518 square inches

3 0

3 years ago

Will give brainliest if this math question is answered correctly

solniwko [45]

Answer: 37 fruit pies+42 fruit juices=79 total items

(a) 37*1.65= $61.05

42*1.36= $57.12

(b) Mr Sanchez's class earned more money.

(c) Mr. Sanchez's class earned $3.93 more than Mr. Kelly's class

$61.05-$57.12= $3.93

Step-by-step explanation:

6 0

3 years ago

Which lists the steps in the correct order to find the median of this data set?

Fofino [41]

The median of the data set can be found as follows:

1. Put the numbers in order (from least to the greatest): 16, 18, 23, 24, 29, 30

2. Cross off high/low pairs: 16, 18, (23, 24,) 29, 30

3. Divide the sum by 2: (23 + 24)/2 = 23.5

<h3>What is the Median?</h3>

The median of a data set is the data value at the middle of the data set when it is ordered.

Steps to find the median of the data set, 24, 16, 23, 30, 18, 29:

1. Put the numbers in order (from least to the greatest)

16, 18, 23, 24, 29, 30

2. Cross off high/low pairs: 16, 18, (23, 24,) 29, 30

3. Divide the sum by 2: (23 + 24)/2 = 23.5

The median is therefore, 23.5.

Learn more about the median on:

brainly.com/question/26177250

3 0

2 years ago