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4 years ago

HELP PLS! WILL MARK BRAINLIEST!!!!! 50 POINTS!!!!

Mathematics

1 answer:

UkoKoshka [18]4 years ago

5 0

the lower the valance electrons the more reactive the element.

Since Element B has few electrons it is more reactive

so the answer is Element A is less reactive but will still react

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Two families attended a baseball game. The first family bought 5 bags of popcorn and 6 souvenir cups, which totaled $65. The sec

Bumek [7]

The cost of one bag is given as

<h3> How much did one bag of popcorn cost?</h3>

Generally, the equation for the First family is mathematically given as

4x + 5y = 50

Equation Second family:

6x + 4y = 54

We have a system of 2 equations with 2 variables.

4x + 5y = 50

6x + 4y = 54

Since we are being asked for the cost of one bag of popcorn, which we will refer to as x, we will first remove y and then proceed to find x.

Both sides of the first equation need to be multiplied by -4, and both sides of the second equation need to be multiplied by 5. We are asked for the price of 1 bag of popcorn, x, so we will eliminate y and solve for x.

-16x - 20y = -200

30x + 20y = 270

In conclusion, Simply adding the equations will get rid of y.

14x = 70

x = 70/14

x = 5

Read more about equations

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5 0

2 years ago

The width of a rectangle is the sum of the length and 3. The area of the rectangle is 54 units. What is the length, in units, of

amm1812

Answer:

6 units =

Step-by-step explanation:

= 3 +

[3 + ] = 54 ↷

² + 3 - 54 ↷

[x - 6][x + 9] = 0

↑

We want this expression because when we talk about dimensions, we want NON-NEGATIVE numbers. The other expression gives us a solution of -9 = x, and we do not want that; this one gives us 6 = x, and THIS is what we are looking for.

I am joyous to assist you anytime.

8 0

3 years ago

5. Find the first, fourth, and tenth terms of the arithmetic

Lubov Fominskaja [6]

The first, fourth and tenth terms of the arithmetic sequence is $-6, -\frac{27}{5}$ and $-\frac{21}{5}$

Explanation:

The given rule for the arithmetic sequence is $A(n)=-6+(n-1)(\frac{1}{5} )$

We need to determine the first, fourth and tenth terms of the sequence.

To find the first, fourth and tenth terms, let us substitute $n=1,4,10$ in the general rule for the arithmetic sequence.

To find the first term, substitute $n=1$ in $A(n)=-6+(n-1)(\frac{1}{5} )$ , we get,

$A(1)=-6+(1-1)(\frac{1}{5} )$

$A(1)=-6+(0)(\frac{1}{5} )$

$A(1)=-6$

Thus, the first term of the arithmetic sequence is -6.

To find the fourth term, substitute $n=4$ in $A(n)=-6+(n-1)(\frac{1}{5} )$ , we get,

$A(2)=-6+(4-1)(\frac{1}{5} )$

$A(2)=-6+(3)(\frac{1}{5} )$

$A(2)=\frac{-30+3}{5}$

$A(2)=\frac{-27}{5}$

Thus, the fourth term of the arithmetic sequence is $-\frac{27}{5}$

To find the tenth term, substitute $n=10$ in $A(n)=-6+(n-1)(\frac{1}{5} )$ , we get,

$A(10)=-6+(10-1)(\frac{1}{5} )$

$A(10)=-6+(9)(\frac{1}{5} )$

$A(10)=-6+\frac{9}{5}$

$A(10)=-\frac{21}{5}$

Thus, the tenth term of the arithmetic sequence is $-\frac{21}{5}$

Hence, the first, fourth and tenth terms of the arithmetic sequence is $-6, -\frac{27}{5}$ and $-\frac{21}{5}$

3 0

4 years ago

The data shown on the scatter plot below demonstrates the relationship between the time of day and the total number

viva [34]

Answer:

Good question! The correct answer is a) increases and b) increases.

While the pair of answers a) decreases and b) decreases or the pair a) stays the same and b) stays the same would be technically correct answers, this is the best way of describing the trend of the scatter plot; typically, trends are described by how the dependent or y-variable responds to the independent or x-variable increasing.

6 0

3 years ago

Possible side lengths for a rectangular fence are 8 feet, 10 feet, and 12 feet. Marsha

andriy [413]

8ft by 12ft and 10ft by10ft

8 0

3 years ago