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coldgirl [10]
3 years ago
9

If Blake wanted to use the Substitution method to solve the following system of equations, what could be a good first

Mathematics
1 answer:
Oduvanchick [21]3 years ago
3 0

Answer:

solve the second equation for x

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I don't get it please help
Elis [28]
2, (double) 4, (double) 8 (double) 16, So 16 in week 4
2+4+8+16 = 30
5 0
3 years ago
Read 2 more answers
7. how many tiles measuring
Margaret [11]

Answer:

245 tiles

Step-by-step explanation:

1 meter = 100 cm

Area of bathroom = 3.5m x 2.8m = 350x280 = 9800 cm²

Area of each tile = 20cm x 20cm = 400 cm²

Total number of tiles required = 9800/400 = 245

<u>Note</u>

Strictly speaking we have to find out how many tiles can be fitted in the length and breadth of the bathroom. Since the bathroom is 350 cm wide, we can fit 350/20cm = 17.5 tiles. However, there is no concept of 1/2 tile so the question has an ambiguity. along the width, we can fit 280/10 = 14 tiles

17.5 x 14 = 245 but if the question is reworded to how many tiles do we need to purchase to floor the bathroom it would be 18 x 14 = 252

5 0
2 years ago
A house that costs $125,400 appreciates at a rate of 3% each year. What is the value of the
ser-zykov [4K]

Answer:

The value after three years is $137,027.97

Step-by-step explanation:

Here, we want to get the value of the home after 3 years

Generally, we have the exponential formula as follows;

y = P(1 + r)^t

where P is the original cost which is $124,400

r is the rate of increase which is 3% = 3/100 = 0.03

t is the time which is 3 years

Substituting these values;

y = 125400(1 + 0.03)^3 = $137,027.97

6 0
3 years ago
How to solve this equation and check it. a - 2.5 = 4.5?
Bezzdna [24]

Answer:

Step-by-step explanation:

a - 2.5 = 4.5

     2.5 = 2.5

a = 7.0 or 7

7.0 - 2.5 = 4.5

4.5 = 4.5

5 0
3 years ago
A 7/16-long bolt is used in a machine.What is the length of the bolt written as a decimal?
babymother [125]
The answer is 0.4375
6 0
3 years ago
Read 2 more answers
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