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Montano1993 [528]
3 years ago
8

Jack's father is 3 times older than jack. 5 years ago the sum of their ages was 34. How old is jack now?

Mathematics
2 answers:
12345 [234]3 years ago
7 0

Answer:

the answer is 16

Step-by-step explanation:

Lacy = x

Jack = 3x

(x - 5) + (3x - 5) = 34

x - 5 + 3x - 5 = 34

4x = 34 + 10

 

4x = 44

x = 11

So, Lacy = 11 years old.

Jack = 33 years old.

I am Lyosha [343]3 years ago
4 0

Answer:

jack (with the lower case j) is 11 years old

Step-by-step explanation:

(x - 5) + (3x - 5) = 34

x - 5 + 3x - 5 = 34

4x = 34 + 10

4x = 44

x = 11

So, jack = 11 years old.

Jack = 33 years old.

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The world's largest marathon, The New York City Marathon, is held on the first Sunday in November each year. Between 2 million a
e-lub [12.9K]

Answer:

<u>25%</u> is the percent error.

Step-by-step explanation:

Given:

The world's largest marathon, The New York City Marathon, is held on the first Sunday in November each year. Between 2 million and 2.5 million spectators will line the streets to cheer on the marathon runners.

Now, to find the percent error.

As given, between 2 million and 2.5 million spectators will line the streets to cheer on the marathon runners.

<em>The actual measure</em> = 2 million.

The estimated measure = 2.5 million.

<em>So, the error</em> = 2.5-2=0.5\ million.

Now, to get the percent error:

\frac{0.5}{2} \times 100.

=0.25\times 100

=25\%.

Therefore, 25% is the percent error.

7 0
3 years ago
The dot plot below shows the number of toys 21 shops sold in an hour:
kumpel [21]

Answer:

D.Mean; because the data is skewed and there are outliers

Step-by-step explanation:

The plot does not have an even display of dots and there is outliers, or boarders

6 0
3 years ago
Geometry question answer "c" is incorrect.
Black_prince [1.1K]
I also believe B is the answer...i belive :)
5 0
3 years ago
it takes the earth 24 hours to complete a full rotation it takes Saturn 10 hours and 39 seconds to complete a full rotation how
OLEGan [10]

we know that

1 hour is--------> 60 minutes

1 minute is---------> 60 sec

so

10 hour =10*60=600 minutes

39 sec=39/60=0.65 min

10 h 39 sec=600+0.65=600.65 min

therefore

<u>the answer is</u>

600.65 minutes

7 0
3 years ago
(6x - 3) - (-3x + 2)
nadezda [96]

Answer:

Step-by-step explanation:

Simplifying

6x + -3 = (3x + -2)

Reorder the terms:

-3 + 6x = (3x + -2)

Reorder the terms:

-3 + 6x = (-2 + 3x)

Remove parenthesis around (-2 + 3x)

-3 + 6x = -2 + 3x

Solving

-3 + 6x = -2 + 3x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-3x' to each side of the equation.

-3 + 6x + -3x = -2 + 3x + -3x

Combine like terms: 6x + -3x = 3x

-3 + 3x = -2 + 3x + -3x

Combine like terms: 3x + -3x = 0

-3 + 3x = -2 + 0

-3 + 3x = -2

Add '3' to each side of the equation.

-3 + 3 + 3x = -2 + 3

Combine like terms: -3 + 3 = 0

0 + 3x = -2 + 3

3x = -2 + 3

Combine like terms: -2 + 3 = 1

3x = 1

Divide each side by '3'.

x = 0.3333333333

Simplifying

x = 0.3333333333

6 0
3 years ago
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