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Svetllana [295]
2 years ago
14

3) Solve these problems that have more than one answer.

Mathematics
2 answers:
SpyIntel [72]2 years ago
7 0
The answer should be 225
MaRussiya [10]2 years ago
5 0

Answer:

225

Step-by-step explanation:

Mary = 3x (3 times Carey)

Carey = x

Barry = x/2 (Because Carey read twice as many as Barry, it means he read half the amount Carey did)

3x + x + x/2 = 405

4x + x/2 = 405

8x/2 + x/2 (treat these as fractions) = 405

9x/2 = 405

9x = 810 (cross multiply)

x = 90

Mary = 3(90)      270

Carey =              90

Barry = 90/2      45

Mary - Barry

270 - 45 = 225

Hope this helps! :)

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Gonzalo observa que el grifo del lavabo de un año después el goteo se produce una velocidad de una gota por segundo y cada gota
Sergio [31]

Answer:

La familia de Gonzalo ha despilfarrado 15,768 litros de agua.

Step-by-step explanation:

Dado que Gonzalo observa que el grifo del lavabo gotea luego de un año, y el goteo se produce una velocidad de una gota por segundo y cada gota contiene 0.5ml de agua, para determinar cuántos litros de agua ha despilfarrado la familia de Gonzalo desde que ellos se dieron cuenta de la avería se debe realizar el siguiente cálculo:

1 año = 365 dias x 24 horas x 60 minutos x 60 segundos

0.5 x 60 x 60 x 24 x 365 = X

30 x 60 x 24 x 365 = X

1800 x 24 x 365 = X

43,200 x 365 = X

15,768,000 = X

15,768,000 / 1000 = X

15,768 = X

Por lo tanto, la familia de Gonzalo ha despilfarrado 15,768 litros de agua.

5 0
2 years ago
A student completes about 8 problems every 3 minutes. At this rate, how long will it take the student to complete 20 problems?
storchak [24]

Answer:

7

Step-by-step explanation:

5 0
3 years ago
Unit 22. Practice test
OLga [1]

Answer:

D

Step-by-step explanation:

5 0
3 years ago
The perimeter of a patio is 16m what is the area
Darina [25.2K]

Answer:

16m

Step-by-step explanation:

The correct answer is 16m for this question.

Formula: L*W

I know this because 4 goes into 16.

Hope this helps.

3 0
3 years ago
If you have 2 linear equations and you want to find where they have the same x- and y- value on a graph you look for the
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Answer:

Intersection of the two lines.

4 0
2 years ago
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