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4 years ago

I am thinking of a number.

Mathematics

2 answers:

alex41 [277]4 years ago

5 0

Answer:

x = 25

Step-by-step explanation:

Because the give the same number they are equal!

x = the number

10x - 106 = 6x - 6

4x = -6 + 106

4x = 100

x = 25

Thanks for the question! :)

Juliette [100K]4 years ago

4 0

The answer is 25 just do everything backwards

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At a birthday party pizzas and sodas were purchased for the kids. The number of sodas bought was two more than three times the n

ohaa [14]

Answer:

Step-by-step explanation:

Givens

Let the pizzas = x

Let the sodas = y

Equation

y = 3x + 2

Part A

y = 3*8 + 2

y = 24 + 2

y = 26

Part B

Sodas = 26* 1.25 = 32.50

Pizzas =9.50 * 3 = 28.50

Total for both = 32.50 + 28.50 = 61

5 0

3 years ago

Age (years) Population Under 15 2600 15 - 64 16000 Over 64 4000 Calculate the child dependency ratio from the chart above. Round

Brums [2.3K]

Answer:

16.25%

=0.163 (correct to 3 decimal places)

Step-by-step explanation:

The child dependency ratio of a population is defined as the number of children (Under 15 years) divided by the working-age population (15–64 years old).

$\mathrm{ Child}\;\mathrm{ dependency}\;\mathrm{ ratio}=\dfrac{{\mathrm{ Population}\,\left( \text{Under 15} \right)}}{{\mathrm{ Population}\,\left( {15-64} \right)}}\times 100$

From the given table:

Population Under 15 years = 2600

Population of the working class (between 15-64) = 16000

Therefore:

$\mathrm{ Child}\;\mathrm{ dependency}\;\mathrm{ ratio}=\dfrac{2600}{16000}\times 100\\\\=16.25\%$

=0.163 (correct to 3 decimal places)

3 0

3 years ago

The number of boys of grade 6 students is 220.This is 40more than number of boys grade seven students. How many grade seven boy

belka [17]

Answer:

Given

no of Grade 6 students = 220

no of Grade 7 students = 40 more than grade 6 students

Step-by-step explanation:

boys Grade 7 students = no of Grade 6 students - 40 more than grade 6 students

boys Grade 7 students = 220 - 40

boys Grade 7 students = 180 grade 7 boy students are enrolled

Therefore, 180 grade 7 boy students are enrolled.

6 0

3 years ago

Please type out the correct one for me out of those 2 thanks <4

Sloan [31]

Answer:

1.2n=0.45n+1.5

Step-by-step explanation:

6 0

4 years ago

Write 0.4 as a fraction or mixed number

sammy [17]

the answer of 0.4 is 2/5 or 2 1/5

4 0

3 years ago

Read 2 more answers