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2 years ago

I need this to be solved please!

Mathematics

2 answers:

AleksAgata [21]2 years ago

6 0

Answer:

x=50

Explanation:

tiny-mole [99]2 years ago

4 0

Answer:

Today: Tuesday, 19th January 2021

4.13 PM

$\tt \frac{1}{5} (x - 15) = 7$

$\tt \frac{x}{5} - 3 = 7$

$\tt \frac{x}{5} = 7 + 3$

$\tt \frac{x}{5} = 10$

${\boxed{ \tt\red{x = 50}}}$

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The difference of two trinomials is x2 − 10x + 2. If one of the trinomials is 3x2 − 11x − 4, then which expression could be the

12345 [234]

Answer:

$4x^2-21x-2$

Step-by-step explanation:

Given that:

Difference of two trinomials is $x^2 - 10x + 2$

One of the two trinomials is $3x^2 - 11x - 4$

To find:

The other trinomial = ?

Four options are:

$2x2 - x - 2 \\2x2 + x + 6 \\4x2 + 21x + 6\\ 4x2 - 21x - 2$

Solution:

Let the two trinomials be A and B.

Given A - B = $x^2 - 10x + 2$

B = $3x^2 - 11x - 4$

We have to find the other trinomial A.

A - B = $x^2 - 10x + 2$

A - ( $3x^2 - 11x - 4$ ) = $x^2 - 10x + 2$

$\Rightarrow$ A = $x^2 - 10x + 2$ + ( $3x^2 - 11x - 4$ )

$\Rightarrow$ A = $4x^2-21x-2$

So, the correct answer is $4x^2-21x-2$ .

3 0

3 years ago

I need help please :’( Simplify -4x - x

timofeeve [1]

Answer:

-5x

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

Ming and ivy each sell lemonade. Ming spends $15 on supplies and and all plans to charge $1.50 per cup. Ivy spends $20 on suppli

Marrrta [24]

Answer:

Step-by-step explanation:

1.5x - 15 dollars = x - 20 Add 15 to both sides.

1.5x - 15 + 15 = x - 20 + 15

1.5x = x - 5 They will never coincide.

1.5x-x = - 5

0.5x = - 5 Multiply by 2

x = - 10

I would check your question.

3 0

3 years ago

Read 2 more answers

Solve for j.

gavmur [86]

Answer:

( J - 6 ) × (J + 6 )

Step-by-step explanation:

j^2 -6^2

( J - 6 ) × ( j + 6 )

5 0

3 years ago

Answer this as quick as possible please! (NO EXPLANATION REQUIRED!) <3

shtirl [24]

Answer: 9 Apples

Step-by-step explanation:

Given the following :

Total number of bags = 12

Mean of the distribution(m) = 8

Number of apples (x):

6 - - - - 7 - - - - 8 - - - - 9 - - - - 10

Frequency (f) :

1 - - - - 4 - - - - 2 - - - - 3 - - - - 1

Therefore :

Let number of apples in the 12th bag = y

Frequency of 12th bag : (12 - 11) = 1

Mean of distribution(m) :

Sum of ( f * x) / sum of f

Sum of (f * x) = (6*1)+(7*4)+(8*2)+(9*3)+(10*1)+(y*1)

Sum of (f * x) = (6+28+16+27+10+y) = 87 + y

Sum of f = 12

From :

m = Sum of ( f * x) / sum of f

8 = (87 + y) / 12

87 + y = 12 * 8

87 + y = 96

y = 96 - 87

y = 9

Number of apples in 12th bag is 9 apples

6 0

3 years ago