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juin [17]
3 years ago
12

How do you solve this step by step? “ I’m thinking of a number. If you multiply it by 6 and then add 7, you will get 55. What is

my number?”
Mathematics
2 answers:
Julli [10]3 years ago
7 0

Answer:

\large \boxed{8}

Step-by-step explanation:

        Let x = your number

   Then 6x = your number multiplied by 6

and 6x + 7 = 7 added to that number

\begin{array}{rcrl}6x + 7 & = & 55 & \\6x & = & 48 & \text{Subtracted 7 from each side}\\x & = & \mathbf{8} & \text{Divided each side by 6}\\\end{array}\\\text{Your number is $\large \boxed{\mathbf{8}}$}

Check:

\begin{array}{rcl}6(8) + 7 & = & 55\\48 + 7 & = & 55\\55 & = & 55\\\end{array}

OK.

lozanna [386]3 years ago
5 0

Answer:

8

Step-by-step explanation:

55 -7 = 48

48/6= 8

Check answer:

8x6= 48

48+7= 55

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Check for Understanding_Compare and Order Rational Numbers
Morgarella [4.7K]

The methods for comparing rational numbers include:

  • Cross-multiply and compare the products.
  • Convert both fractions to fractions with a common denominator.
  • Turn both fractions into decimals by dividing.

<h3>What is a rational number?</h3>

It should be noted that a rational number is a number that is expressed as the ratio of two integers, where the denominator should not be equal to zero.

Rational numbers are terminating decimals while irrational numbers are non-terminating and non-recurring.

Learn more about numbers on:

brainly.com/question/24368848

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7 0
1 year ago
Which statement is true about the purpose of trend lines in scatterplots? A trend line must pass through the largest data point.
Eddi Din [679]

Answer:

a trend line can be used to make predictions in real-world situations (the third option)

Explanation:

the first & second options are wrong because it is not a requirement for a trend line to pass through any given data point.

the fourth option is wrong because a trend line shows the general upward/downward trend of the data, and may not necessarily touch all of the data points.

the third option is correct because a trend line helps to roughly estimate the trend (hence the name) of the graph, which allows us to make predictions in real-world situations.

i hope this helps! :D

3 0
2 years ago
Read 2 more answers
Write fifty-three dollars and six cents using the dollar symbol (without spaces)
yulyashka [42]

Answer:

$53.06

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
2,000.h for h = 0.004<br> 2,000 h =
Gekata [30.6K]

Answer:

h=2\times 10^6

Step-by-step explanation:

We need to find h for the following condition.

2,000×h = 0.004

Dividing both sides by 2000

\dfrac{2000h}{2000}=\dfrac{0.004}{2000}\\\\h=0.000002\\\\h=2\times 10^6

So, the value of h is equal to 2\times 10^6.

8 0
2 years ago
The diagram shows a 5 cm x 5 cm x 5 cm cube.
Nitella [24]

Answer:

8.7 cm

Step-by-step explanation:

The question is a 2-two-step Pythagoras theorem. (c^2 = a^2 + b^2)

Consider as such, If I were to draw a diagonal line along the base of the cube what is the length of the diagonal line. To find out that we use the theorem. We can substitute a for 5 and b for 5 as well. So

a^2 +b^2 = c^2

5^2 + 5^2 = c^2

25 + 25 = c^2

√50 = c

Then since the line side of the cube is on a 3d angle we need to do the same process again but now using the imaginary diagonal line that we just calculated and the height (5).

a^2 +b^2 = c^2

√50^2 + 5^2 = c^2

50 + 25 = c^2

√75 = c

c = 8.6602...

<em>when rounded to 1 d.p.</em>

c = 8.7

Line AB is 8.7 cm long.

7 0
3 years ago
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