Question 6

Solve the following system of equations by using the elimination method.
x + y = 4
2x + 3y = 9

(3, 1)

(-2, 1)

(3, -1)

You need a total of 14 cases of 12 to fill 159 items. This involves dividing 159 by 12 and rounding up the result. The division results in 13.25, which means you need 14 cases.

To determine how many cases of 12 are needed to fill a total of 159 items, you can use division:

So, you need a total of 14 cases to completely fill 159 items.

Answer:

10 years.

Step-by-step explanation:

Let Jerome, Keenan, and Leitha have ages of x,y and z respectively,.

Then given that x+y =18  ... i

                           x+z =19  ... ii

                           y+z = 21 ... iii

From the above information we are to find out y and i.e.Keenan age.

Add all the 3 equations

Left side becomes x+y+y+z+z+x = 2(x+y+z)

and right side becomes = 18+19+21 = 58

In other words, 2(x+y+z) = 58

Divide by 2

x+y+z =29  ... iv

From the equation iv subtract ii

x+z =19

We get y = 10

Hence Kennan age = 10 years

Answer: 8

Step-by-step explanation:

Find the GCF of 16 and 24

16: 2 x 2 x 2 x 2

24: 2 x 2 x 2 x 3

GCF = 8

NOTE: Each basket will contain 2 white and 3 red ballons.

central angle of 360° is divided into 9 equal angles each with a measure

360°/9=40°

question answered by

(jacemorris04)

For solving a question like this where you have to find a function for a particular value, just put the given number in place of the unknown variable i.e. x in this case. Lets solve this function now.

We are to solve for f(9), so we will put 9 in place of x:

f(x) = 72+4x

f(9) = 72 + 4(9)

f(9) = 72 + 36

f(9)= 108

so, your function for the value 9 is 108.

Divide the total amount withdrawn by the amount of each withdrawal for both people.

Elisa : 140 / 20 = 7 withdrawals.

Francis : 270 / 45 = 6 withdrawals.

Elisa made the most withdrawals because seven is greater than six.

2xa + 2xbc (just multiply both units in the paranthesis by whats on the outside.)

(a + bc)2x

= 2x*a + bc*2x

= 2ax + 2bcx

D, passes horizontal line test

this is simple graphing if you have a graphing calculator is easy put in the numbers and it is 1/11

An infant sleep more than 2,380 minutes to adult sleep.

What is mean by Subtraction?

Subtraction in mathematics means that is taking something away from a group or number of objects. When you subtract, what is left in the group becomes less.

Given that;

An adult sleeps about 480 minutes per day.

An infant sleeps about 820 minutes per day.

Now,

An infant sleeps in a week = 7 x 820

                                         = 5,740

And, An adult sleep in a week = 7 x 480

                                               = 3,360

So, An infant sleeps more than adult in a week = 5,740 - 3,360

                                                                         = 2,380 minutes.

Thus, An infant sleep more than 2,380 minutes to adult sleep.

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Answer: D

Step-by-step explanation:

      f²i = -f²t + h

    +f²t  +f²t      

f²i + f²t =          h

f²(i + t) =  h

[tex]\frac{f^{2}(i + t) }{i + t} = \frac{h}{i + t}[/tex]

[tex]f^{2}= \frac{h}{i + t}[/tex]

[tex]\sqrt{f^{2} } = \sqrt{\frac{h}{i + t} }[/tex]

f = +/- [tex]{\sqrt{\frac{h}{i + t} }[/tex]

Answer:

Weekly Salary of Paul = $ 456

Monthly salary of Paul (Considering there are 30 days in month)

   [tex]=456 \times 4 + 2 \times \frac{456}{7}[/tex]

= $1954.2857

= $ 1954.30 (approx)

[tex]\frac{28}{36}[/tex] Rule states that 28 % of your income should be spent on housing finances.

So, 28 % of $ 1954.30

[tex]\frac{28}{100}\times 1954.30=547.20[/tex]

Option (C) $ 553 is true.

Answer:

553 is your answer

That tree would be a whopping 32 meters tall. Hope this helps

The height of the tree will be 32 meters.

A ratio is a collection of ordered integers a and b represented as a/b, with b never equaling zero. A proportionate expression is one in which two items are equal.

A building that is 20 meters tall casts a shadow that is 5 meters long. at the same time a tree casts a shadow that is 8 meters long.

Let the height of the tree will be H.

We know that the ratio of the height and shadow cast will be constant. Then the equation will be

H / 8 = 20 / 5

H = 8 x 20 / 5

H = 8 x 4

H = 32 meters

The height of the tree will be 32 meters.

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WRONG!

24 x 10 x 90

(24 x 10) x 90

  240     x 90

That is NOT the same as 2400 x 90

The function would be 1+(1/2)h=d

This is because 1 more means addition and then 1/2 of the cost of a hamburger.

b: hamburger/ h: hotdog

B/2+1=h

Answer:

Mr Finds burns 101 calories in 60 minutes.

Step-by-step explanation:

We were given that Mr Finds burns [tex]808[/tex] calories in [tex]8[/tex] hours.

So we can write the ratio,

[tex]808:8[/tex]

At the same rate we want to find how many calories he burns in [tex]60[/tex] minutes.

This is equivalent to asking how many calories he burns in an hour.

Let [tex]x[/tex] represent the number of calories he burns in an hour. Since this should obviously be less than 808, we divide by 8 to get,

[tex]x=\frac{808\times 1}{8}[/tex]

[tex]\Rightarrow x=101[/tex]

Therefore Mr Finds burns 101 calories in 60 minutes.

Answer:

101 calories.

Step-by-step explanation:

We are told that while hiking, Mr.Finds burns 808 Calories in 8 hours.

To find calories burn by Mr. Finds in 60 minutes let us find calories burn per hour as 1 hour equals 60 minutes.  

[tex]\text{Calories burn in 1 hour}=\frac{808\text{ Calories}}{8\text{ Hours}}[/tex]

[tex]\text{Calories burn in 1 hour}=101\frac{\text{ Calories}}{\text{ Hour}}[/tex]

Therefore, Mr. Finds will burn 101 calories in 1 hour or 60 minutes.

Answer:

$120

Step-by-step explanation:

First add the 10% back, to do so make it a decimal by moving the . over to the left twice.

Now setup the equation OP= New price/(1-discount)

91.80/(1-.10)=102

So the price before the 10% discount is $102

Now set it up again with the new numbers.

102/(1-.15)=120

So the original price before all discounts was $120

*Let p = original price

So firstly, how would we get the price when it's 15% off? You would find multiply the price by 0.15 (15% in decimal form) and then subtract the product from the original price. This can be represented as [tex](p-p\times0.15)[/tex]

Next, we would have to use the 10% off when the dress is already 15% off. The process is similar: Multiply 0.10 (10% in decimal form) with 15% off dress, then subtract the product from the 15% off price. This can be represented as [tex](p-p\times0.15)-0.10(p-p\times0.15)[/tex]

Now since the price is equal to $91.80, we would equal the prior expression to 91.80 as such: [tex](p-p\times0.15)-0.10(p-p\times0.15)=91.80[/tex] From here we can solve for p.

Firstly, solve the multiplication inside of the parentheses:

[tex](p-0.15p)-0.10(p-0.15p)=91.80[/tex]

Next, distribute -0.10 to (p - 0.15p):

[tex]p-0.15p-0.10p+0.015p=91.80[/tex]

Next, combine like terms:

[tex]0.765p=91.80[/tex]

Lastly, divide both sides by 0.765:

[tex]p=120[/tex]

The original price of the dress was $120.

A fair was attended by 834,009 people

Rounding up this number of people to nearest ten thousand.

9 has a 'ones' value

Going to the right from left:

Second last zero has a 'tens' value.

Third from last zero has a 'thousands' value

4 has 'ten thousands' value

Round up 4 and because it is less than five it converts to zero

This gives an answer of  830,000.

- The rungs are perpendicular to the other side.

Answer:

The rungs are perpendicular to the other side.

Step-by-step explanation:

Given

The sides of ladder are parallel.Rungs is perpendicular to one side of the ladder.

Let [tex]a\parallel b[/tex]

[tex]a\perp c[/tex]

When two lines are parallel then the slopes of two lines are equal.

We can say [tex]m_1=m_2[/tex]

Where [tex]m_1[/tex]= slope of line a( side of ladder)

[tex]m_2[/tex]= solpe of line b( side of ladder)

When two lines are perpendicular then slopes of two lines are opposite reciprocal to each other.

We can say [tex]m_2=-\frac{1}{m_3}[/tex]

Where [tex]m_2[/tex]= Slope of line b

[tex]m_3 [/tex]=Slope of line c (rung)

By transitive property of equality we get

[tex]m_1=-\frac{1}{m_3}[/tex]

Hence, the slope of side of ladder  a and rung  c are opposite reciprocal to each other.Therefore , the rungs are perpendicular to the other side.

Answer:

August 20.

Step-by-step explanation:

1. The problem says that the invoice date is June 29 and terms of sale of [tex]\frac{4}{20}[/tex] EOM. This means that if the payment is made 20 days from the end of the month, a percent of 4% may be taken as cash discount.

2. If the number of days in that month is greater than 25, you must add another month. Therefore, you must add July and 20 days of August.

3. Therefore, the discount date is August 20.

-i^2 = 1

so

x^2+25 = x^2 - 25i^2

= (x + 5i)(x - 5i)

The expression over complex numbers will be (x + 5i)(x - 5i).

Every complex number may be represented in the form a + bi, where a and b are real numbers.

A complex number is an element of a number system that extends the real numbers with a specific element labelled I sometimes known as the imaginary unit, and satisfies the equation i² = 1.

The given expression is x²+25.

i² = -1

x²+25 = x² - 25i²

x²+25 = (x + 5i)(x - 5i)

Therefore, the expression over complex numbers will be (x + 5i)(x - 5i).

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The value of x will change because that is the price of the almonds

Therefore mx will change

And the value of mx+b will decrease because the price is cheaper

Answer:

The correct statements are :

1. The value of mx will change.

2. The value of m will change.

3. The value of mx+b will decrease.

Step-by-step explanation:

Todd needs x ounces of almonds, which are priced at m dollars per ounce in the baking section. So, price of x ounces becomes = mx

The total cost of the other ingredients is b dollars.

Hence, total cost is given as = [tex]mx+b[/tex]

Now, Todd later finds almonds in the bulk section that are half the price of those in the baking section.

So, now price is :[tex]\frac{m}{2}[/tex]

And total price for 'x' ounce will become: [tex]\frac{mx}{2}+b[/tex] dollars.

Therefore, if Todd purchases the almonds in the bulk section, the total cost  will decrease.

The correct statements are :

1. The value of mx will change.

2. The value of m will change.

3. The value of mx+b will decrease.

The correct option is:   b. 3

Explanation

Middle 50% data means the "Interquartile Range" which is measured as the difference between the third quartile[tex](Q_{3})[/tex] and the first quartile[tex](Q_{1})[/tex] in a data set.

In the given box plot, we can see that:    [tex]Q_{1}= 4[/tex] and [tex]Q_{3}= 7[/tex]

So, the Interquartile range, [tex]IQR= Q_{3}-Q_{1} = 7-4= 3[/tex]

Thus, the range of the middle 50% of data will be 3.