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3 years ago

How much would it cost to build 10 houses if it costs 7 500 000 per house.

Mathematics

2 answers:

Tcecarenko [31]3 years ago

7 0

The answer to the question is 750000

Andrej [43]3 years ago

6 0

Answer:

75 000 000

Step-by-step explanation:

7 500 000 times 10 = 75 000 000

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Teri scored 64 points in the first 8 games she played in. she scored the same number of points in each game. how many points did

Rufina [12.5K]

You can find this by doing: 64 points/ 8 games.
Therefore, she scored 8 points a game.

4 0

3 years ago

Read 2 more answers

Will mark brainliest !! Easy math

marshall27 [118]

Answer:

increase = 37.38 cm²

You'd like the first way because it took less effort and less chance of a miscalculation.

Step-by-step explanation:

first way:

(just work with the difference in height)

(0.7 x 8.7 x 2) + (0.7 x 18 x 2) = 37.38 cm²

second way:

old total lateral surface area = (31 x 8.7 x 2) + (31 x 18 x 2) = 1655.4

new total lateral surface area = (31.7 x 8.7 x 2) + (31.7 x 18 x 2) = 1692.78

increase = 1692.78 - 1655.4 = 37.38 cm²

6 0

2 years ago

Ryan works at at the donut shop where he makes $10.25 per hour . He also works part time at the school bookstore where he makes

SCORPION-xisa [38]

Answer:

6 hours

Step-by-step explanation:

Let

x----> the number of hours worked at the donut shop

y----> the number of hours worked at the school bookstore

we know that

x+y=20

x=20-y -----> equation A

10.25x+8.75y=196 -----> equation B

Substitute equation A in equation B and solve for y

10.25(20-y)+8.75y=196

205-10.25y+8.75y=196

10.25y-8.75y=205-196

1.5y=9

y=6 hours at the school bookstore

7 0

3 years ago

The radius of a cone is 10 units and the<br> height is 5 units. What is the volume?

kumpel [21]

Answer:

523.6

Step-by-step explanation:

V=πr^2(h/3)=π*10^2*(5/3)=523.59878

3 0

3 years ago

1. Section 3.1 Measures of Central Tendency pH in Water: The acidity of alkalinity of a solution is measured using pH. A pH less

disa [49]

Answer:

For tap water

Mean = 7.5

Median = 7.485

Mode = 7.47

For bottled water

Mean = 5.1942

Median = 5.22

Mode = 5.26

b) Tap water is alkaline while bottled water is acidic

c) For 7.10 recorded as 1.70, mean value will decrease to 7.05

Step-by-step explanation:

Given;

pH readings for tap water

7.64, 7.45, 7.47, 7.50, 7.68, 7.69, 7.45, 7.10, 7.56, 7.47, 7.52, 7.47

Now,

Mean = $\frac{\textup{Sum of all readings}}{\textup{Number of readings}}$

Sum of all readings

= 7.64 + 7.45+ 7.47+ 7.50+ 7.68+ 7.69+ 7.45+ 7.10+ 7.56+ 7.47+7.52+7.47

= 90

Number of readings = 12

Mean = $\frac{90}{12}$

Mean = 7.5

For median

Putting the data set in ascending numerical order

7.10 , 7.45, 7.45, 7.47, 7.47, 7.47 , 7.50, 7.52, 7.56, 7.64 , 7.68, 7.69

Thus,

median = $\frac{\textup{7.47+7.50}}{\textup{2}}$ = 7.485

Mode = number that appears most frequently = 7.47

Now for bottled water

Readings are :

5.15 5.09 5.26 5.20 5.02 5.23 5.28 5.26 5.13 5.26 5.21 5.24

Mean = $\frac{\textup{Sum of all readings}}{\textup{Number of readings}}$

Sum of all readings =

5.15 + 5.09 + 5.26 + 5.20 + 5.02 + 5.23 + 5.28 + 5.26 + 5.13 + 5.26 + 5.21 + 5.24

= 62.33

Number of readings = 12

Mean = $\frac{\textup{62.33}}{\textup{12}}$

Mean = 5.1942

Putting the data set in ascending numerical order

5.02, 5.09, 5.13, 5.15, 5.20, 5.21, 5.23, 5.24, 5.26, 5.26, 5.26, 5.28

median = $\frac{\textup{5.21
+5.23}}{\textup{2}}$ = 5.22

Mode = number that appears most frequently = 5.26

b) Tap water is alkaline while bottled water is acidic

c) For 7.10 recorded as 1.70

Mean = $\frac{\textup{Sum of all readings}}{\textup{Number of readings}}$

Sum of all readings

= 7.64 + 7.45+ 7.47+ 7.50+ 7.68+ 7.69+ 7.45+ 1.70+ 7.56+ 7.47+7.52+7.47

= 84.6

Number of readings = 12

Mean = $\frac{84.6}{12}$

Mean = 7.05

Hence , the mean value will decrease to 7.05

3 0

3 years ago