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ozzi
2 years ago
7

1

Mathematics
1 answer:
Lena [83]2 years ago
4 0

Answer:

7.5kg

Step-by-step explanation:

Given that:

Monday:

Mass of sand = 24 kg

Mass of cement = 5 kg

Tuesday :

Mass of sand = 36 kg

Let mass of cement = c

Mass of cement required to make the same type of mortar mix

Mass of Sand = mass of cement

24kg = 5kg

36kg = c

By cross multiplication :

24 * c = 5 * 36

24c = 180

Divide both sides by 24

c = 180 / 24

c = 7.5 kg

Hence mass of cement required is 7.5 kg

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A scale model of the statue of liberty is 8 inches tall. If the scale used is 1 in = 30yd. What is the actual height of the stat
zavuch27 [327]

Answer: 250 yd

Step-by-step explanation:

From the question, we are informed that the scale model of the statue of liberty is 8 inches tall and that the scale used is 1 in = 30yd.

Since the scale used was 1 in = 30 yd, the actual height of the statue of liberty will be:

= 8 × 30

= 240 yd

3 0
3 years ago
Which could be a conditional relative frequency table? A 4-column table with 3 rows. The first column has no label with entries
kotykmax [81]

Answer:

<u>II. Second table</u>

              A              B            Total

C           0.25         0.75          1.00

D           0.35         0.65          1.00

Total     0.30         0.70          1.00

Explanation:

<h2>Tables</h2>

<u>I. First table </u>

              A              B            Total

C           0.25          0.25          0.50

D           0.25          0.25          0.50

Total     0.50          0.25           1.00

<u>II. Second table</u>

              A              B            Total

C           0.25         0.75          1.00

D           0.35         0.65          1.00

Total     0.30         0.70          1.00

<u>III. Third table</u>

<u></u>

             A              B            Total

C          0.75         0.25          0.50

D          0.25         0.75          0.50

Total    0.50         0.50          1.00

<u>IV. Fourth table</u>

              A              B            Total

C          0.65         0.35         1.00

D          0.35         0.65          1.00

Total     1.00          1.00          1.00

<h2>Solution</h2>

A <em>conditional relative frequency table</em> shows the relative frequencies determined upon a row or column.

There are two types of relative conditional frequency table: 1) row conditional relative frequency, and 2) column conditional relative frequency.

When you divide the joint frequency by the marginal frequency of the column total you have the row conditional frequency table. When you dividethe joint frequency by the row total you have the colum conditional frequency table.

In a row conditional relative frequency each total of the right hand column equals 1. This is the case of the second table.

In a column conditional relative frequency each total of the bottom row equals 1. This is not happening with any of the shown tables.

Hence, only the second table could be a conditional relative frequency table.

5 0
3 years ago
Read 2 more answers
Let's start! Take a look at all of these blocks. You can reach the number 10 by adding the blocks in many different ways. BUT, w
kakasveta [241]

Answer:

the answer is 2. (6 and 4)

Step-by-step explanation:

6 + 4 = 10

5 0
2 years ago
What is the name of the property of multiplication shown the equation.
Shtirlitz [24]
C- Commutative property.

Explanation: The numbers are flipped around, but still give you the same answer!
5 0
3 years ago
Lainey bought a set of 202020 markers for \$6$6dollar sign, 6.<br> What is the cost of 1 marker?
Galina-37 [17]

Answer:

$0.30

Step-by-step explanation:

6 / 20

0.3

Best of Luck!

4 0
3 years ago
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