All categories

3 years ago

3.(08.05)

Mathematics

2 answers:

Pie3 years ago

6 0

Answer:

99 points

Step-by-step explanation:

Use x to represent what you're trying to solve using an equation:

$\frac{88 + 84 + 88 + 91 + x}{5}$ = 90

Now simplify:

$\frac{351 + x}{5}$ = 90

Simplifies into (when 351/5 is subtracted from both sides):

$\frac{x}{5} = 19.8$

Simplifies into (when each side is multiplied by 5)

x = 99

Ronch [10]3 years ago

5 0

Answer:

99 points

Step-by-step explanation:

You might be interested in

3. Which rule best describes the last three numbers shown in the pattern? 10, 12, 9, 11

sergij07 [2.7K]

Answer:

it goes by 2 two times then subtracts 3 then again

Step-by-step explanation:

10,12,9,11,8,10,7

5 0

3 years ago

B) 8xy +4y² factorise

m_a_m_a [10]

Answer:

The answer is: 4y(2x+y)

Step-by-step explanation:

8 0

1 year ago

Plzzzzzzzz help this is math

elena-s [515]

The answer would be
m= -25

3 0

3 years ago

Read 2 more answers

For AB, point A has coordinates (3, -5) and point B has coordinates (-1, 9). What are the coordinates of the midpoint of AB?

kow [346]

The coordinates midpoint of AB are (1,2)

5 0

3 years ago

Which expressions simplify to a rational answer? Select each correct answer. 29√⋅4√ 3√⋅16−−√ 73⋅−√3√ 5√⋅5√

PolarNik [594]

Answer:

The correct options are 1, 3 and 4.

Step-by-step explanation:

We need to find the expressions whose simplified form is a rational number.

Rational number: If a number is defined in the form of p/q where p and q are integers and q≠0, then it is called a rational number.

For example: 0,2, 4.3 etc.

Irrational number: If a number can not defined in the form of p/q, where p and q are integers and q≠0, then it is called an irrational number.

First expression is

$2\sqrt{9}\cdot \sqrt{4}=2(3)\cdot (2)\Rightarrow 6\cdot 2=12$

12 is a rational number.

Second expression is

$\sqrt{3}\cdot \sqrt{16}=\sqrt{3}\cdot 4\Rightarrow 4\sqrt{3}$

$4\sqrt{3}$ is an irrational number.

Third expression is

$7\sqrt{3}\cdot \sqrt{3}\Rightarrow 7\cdot 3=21$

21 is a rational number.

Fourth expression is

$\sqrt{5}\cdot \sqrt{5}=5$

5 is a rational number.

Therefore, the correct options are 1, 3 and 4.

4 0

4 years ago