help please and show working

Help Please And Show Working

Answers

Answer 1

Answer:

27/4 or 6 3/4

Step-by-step explanation:

Change all mixed numbers into improper fractions

2 1/9 = 19/9

6 1/4 = 25/4

19/9 ÷ 2/3 - 25/4 x 2/5

dividing fractions you can multiply and use reciprocal of the fraction (means you switch the top and bottom numbers)

19/9 x 3/2 - 25/4 x 2/5

you can reduce the top and bottom numbers to make them smaller by dividing. find a common number to divide them by, you can cross out the numbers and just put the new equation below

19/3 x 1/2 - 5/4 x 2/1

multiply across the fractions first PEMDAS, then subtract

19/6 - 10/4 (multiply by 2 and 3 respectively to get both bottom numbers the same, multiply by the same number on top)

57/12 - 30/12 = 27/12

1/5 x 1/3 + 2/5 x 2/3

1/15 + 4/15 = 5/15 or 1/3

27/12 / 1/3

you can multiply the fractions and flip the top and bottom numbers of 1/3

27/12 x 3/1

reduce 12 and 3

27/4 x 1/1 = 27/4 or 6 3/4


Related Questions

Determine the x- and y-intercepts of the graph of x+2y=−4 .


Then plot the intercepts to graph the equation. Plzzz help

Answers

Answer: graph is in picture

Graph the line using the slope and y-intercept, or two points

Slope: −1/2

x y

0. −2

2. −3

—————-————————————

the x- and y-intercepts :

x-intercept(s): (−4, 0)

y-intercept(s): (0, −2)

To find the x-intercept, substitute in 0 for y and solve for x. To find the y-intercept, substitute in 0 for x and solve for y.

Please, Can someone help me, I don't know this one.

Answers

The smaller triangle’s missing side is 6.32 and the bigger triangle’s missing side is 10.

Question: All of the following trigonometric functions have the same value except

Answers: Pick one.
cos180°
sin270°
tan90°

Answers

Answer:

[tex]\tan{90^{\circ}}[/tex]

Step-by-step explanation:

Because [tex]\cos{x}[/tex] and [tex]\sin{x}[/tex] are defined for all [tex]x[/tex](i.e. their domain is [tex](-\infty, \infty)[/tex]), so they can never be undefined. However, [tex]\tan{90}=\sin{90}/\cos{90}=\sin{90}/0[/tex], which is undefined, because you can't divide by [tex]0[/tex]. So, the answer is [tex]\boxed{\tan{90^{\circ}}}[/tex]

Determining a Missing
f(x)
-3
-12
If the table of the function contains exactly two potential
turning points, one with an input value of -1, which
statement best describes all possible values of m?
Om 2-12
0 -12 Oms 4
O m2 4 or ms -12
-2
m
-1
4
0
0
1
-4 -2
2.

Answers

Answer:-36

Step-by-step explanation:-3(-1)-12

so negative times negative is positive so -3 x -1 is 3 so now positive times negative is negative so 3 x -12 is -36

The statement which best describes all the possible values of m is –12 < m < 4.

What is a Turning Point of a Function?

The turning point of a function is defined as the point where the graph of the function changes it's form. That is, an increasing graph changes to decreasing at that point and vice versa.

Given a table values of function.

Also, given that, one of the turning point is at x = -1.

At x = -1, f(x) = 4.

After it, the function decreases.

We can also see another turning point at x = 1.

At x = 1, f(x) = -4.

After x = 1, the function again increases to get the value f(x) = -2.

So x = -2 is not a turning point.

So the value of f(-2) = m lies in between -12 and 4.

Hence the correct option is B.

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Your question is incomplete. The complete question is given below.

If the table of the function contains exactly two potential turning points, one with an input value of –1, which statement best describes all possible values of m? m ≥ –12 –12 < m < 4 m ≤ 4 m ≥ 4 or m ≤ –12

Lucy is saving money to buy a game. So far she has saved $12 , which is two-thirds of the total cost of the game. How much does the game cost?

Answers

Answer:

18$

Step-by-step explanation:

O A. All real numbers
O B. y> 0
O c. y> 4
O D. y>4

Answers

Answer:

A

Step-by-step explanation:

cause an exponent and be any number

Seven kg. of nuts costs $5. How many kg. of nuts can you buy with $2

Answers

7kg=$5

represent the unknown with an x.

Therefore,

7kg=$5

x=$2

5÷2 is 2.5

7kg÷2.5=2.8

2.8kg of nuts for $2.8

7/1 − 3 ( 7/3n − 7/2 )

Answers

Answer:

[tex]\frac{35}{2}[/tex] - [tex]7n[/tex]

Step-by-step explanation:

7/1 − 3( 7/3n − 7/2 )

Anything divided by one gives itself.

7 - 3 ( [tex]\frac{7}{3}n - \frac{7}{2}[/tex])

Use the distributive property to multiply −3 by  [tex]\frac{7}{3}n - \frac{7}{2}[/tex])

7 - 3 × ([tex]\frac{7}{3}[/tex][tex]n[/tex] - 3 (-[tex]\frac{7}{2}[/tex])

Multiply −3 times [tex]\frac{7}{3}[/tex]

7 - 7n - 3 (-[tex]\frac{7}{2}[/tex])

Express -3 (-[tex]\frac{7}{2}[/tex]) as a single fraction.

7 - 7n + [tex]\frac{-3(-7)}{2}[/tex]

Multiply −3 and −7 to get 21.

7 - 7n + [tex]\frac{21}{2}[/tex]

Convert 7 to fraction [tex]\frac{14}{2}[/tex]

[tex]\frac{14}{2}[/tex] - 7n +  [tex]\frac{21}{2}[/tex]

Since [tex]\frac{14}{2}[/tex] and [tex]\frac{21}{2}[/tex] have the same denominator, add them by adding their numerators.

[tex]\frac{14 + 21}{2} - 7n[/tex]

Add 14 and 21 to get 35.

[tex]\frac{35}{2} - 7n[/tex]

Help please !!!!!!!!!!!

Answers

Answer:

120

Step-by-step explanation:

Because it’s congruent to the other angle

in a standard normal distribution, the probability that z is greater than zero is

Answers

Answer:

50%

Step-by-step explanation:

The distribution is symmetrical about  the y-axis.

The probability that z is greater than zero in a standard normal distribution is 0.5 or 50%.

What is Probability?

The branch which deals with the occurrence of a random event is known as probability.

The area under the curve to the right of z = 0 is equal to the area under the curve to the left of z = 0. So the standard normal distribution is symmetric about the mean of zero

As the total area under the curve is equal to 1, each of these areas must be 0.5 or 50%.

In a standard normal distribution, the probability that z is greater than zero is 0.5, or 50%.

Therefore, the probability that z is greater than zero in a standard normal distribution is 0.5 or 50%.

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could anyone help me with this?

Answers

Answer:

ya

Step-by-step explanation:

.

If three dice are rolled, what chance is there
of throwing a total of 18?

Answers

Answer:

1/216

Step-by-step explanation:

1/6 times 1/6 times 1/6

or 6^-3

Answer:

Step-by-step explanation:

There is only 1 way you can throw 18 with 3 dice. There are 6 * 6 * 6 = 216 ways of throwing 3 dice. Only 1 will give you  18. So the answer is 1/216

Simplify the expression 3/2(5/3)−1 1/4+1/2 . Given the answer as a simplified fraction.
The simplified expression is a/b .

Answers

Answer:

3/2(5/3) - 1 1/4 + 1 1/2

= 11/4

Step-by-step explanation:

can someone help me how to do this​

Answers

Answer:

Answers in Bold

Step-by-step explanation:

Point Slope Form: (y - y₁) = m(x - x₁)

4. y - 4 = 0.8(x - 2)

   - To make it slope-intercept form

   y - 4 = 0.8x - 1.6

   y = 0.8x + 2.4

5. (Use slope finding formula) 4 - 10 / -2 - (-5) = 2

   y - 4 = 2(x + 2)

   - To make it slope-intercept form

   y - 4 = 2x + 4

   y = 2x + 8

Find all missing angles m 1, m 2, m 3, and m 4

Answers

if i remember how to do this right:
m 1= 56°
m 2= 18°
m 3= 131°
m 4= 31°




sorry if this isn’t right, i tried

Answer:

i thinks it on a app

Step-by-step explanation:

yea the wedsite is

write an equation of the line that has each pair of intercepts
x-intercept: 6 y-intercept: 3

Answers

Answer: y = 6x+3

Step-by-step explanation:

Hi, please what's -3 1/2 - 1 5/6

Answers

Answer:

-8/3

Step-by-step explanation:

Answer:

-31 / 2 - 15 /7

-31 /2

= 15.5

-15/7

-2 .14

so the answer was.

-8/3

At a sale of radio sets, 1/3 of all the sets were sold the first day, 1/4 of all the sets were sold the second day, and 1/8 of all the sets were sold the third day. What fractional part of the sets was left unsold after the third day?
A) 17/24
B) 5/12
C) 7/18
D) 7/24

Answers

Answer: 7/24 is the answer to this question

3. Tiffani has a baseball
card collection with 273
cards in it. She decides to
seil one-third of her
collection. How many cards
does she have left

Answers

Answer:

Tiffani has 182 cards left.

Step-by-step explanation:

Find one-third (1/3) of 273:

1/3 x 273 = 91

Therefore, she sells 91 cards.

273 - 91 = 182 cards left

Hope this helps :)

1) say you are given the graph of the line y =- x write the equation of the line that is parallel to the given line and goes through the point (-8,2)
2) say you are given the graph of the line y =- x write the equation of the line that is parallel to the given line and goes through the point (8,2)

Answers

I'm pretty sure the answer to y=−x. Write equation for (8,2) is y=x-6. The opposite of the x is -8, hence, (-8,2) is y=-x-6 is the answer

1. The equation of the line which is parallel and goes through the point (-8, 2) is,

y = x + 10

2. The equation of the line which is parallel and goes through the point (8, 2) is,

⇒ y = x - 6

What is Equation of line?

The equation of the line in slope-intercept form is expressed as:

y - y₁ = m(x - x₁)

where: m is the slope.

and (x₁, y₁) is the point on the line.

1. Given that;

Equation of the line as y = -x

Get the slope of the line,

y = -x

m = -1

Since, The required line is parallel to this line,

So, the required slope will be -1

Now, Get the required equation as,

y - y₁ = m(x - x₁)

y - 2 = 1 ( x - (-8) )

y - 2 = x + 8

y = x + 8 + 2

y = x + 10

Hence, The equation of the line which is parallel and goes through the point (-8, 2) is,

⇒ y = x + 10

2.  Given that;

Equation of the line as y = -x

Point as (8, 2)

Get the slope of the line,

y = -x

m = -1

Since, The required line is parallel to this line,

So, the required slope will be -1

Now, Get the required equation as,

y - y₁ = m(x - x₁)

y - 2 = 1 ( x - 8 )

y - 2 = x - 8

y = x - 8 + 2

y = x - 6

Hence, The equation of the line which is parallel and goes through the point (8, 2) is,

⇒ y = x - 6

Thus,

1. The equation of the line which is parallel and goes through the point (-8, 2) is,

y = x + 10

2. The equation of the line which is parallel and goes through the point (8, 2) is,

⇒ y = x - 6

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guys pls help me!!!!!!!

Answers

Answer:

[tex](6r - 3) \degree = 45\degree \\ 6r = 45 + 3 \\ 6r = 48 \\ r = \frac{48}{6} \\ \therefore \: r = 8 \\test \: 6(8) - 3 = 48 - 3 = 45\degree[/tex]

whats the reciprocal to 2 3/8?

Answers

Answer:

8/19 would be the answer to this question.

I hope this helped you! :)

Answer:

8/19

Step-by-step explanation:

Given x, the reciprocal is 1/x.

Given 2 3/8, we first rewrite this as an improper fraction:  19/8, and then invert this result:  8/19

Pls help, and quick pls!!!

Answers

Answer:

A) 1/3

B) 3

Step-by-step explanation:

PART A: To calculate the scale factor reduction going from the large shape to the small shape you have to use the equation SF reduction = small/large. Using the figures on the side of the shape I need to have 3/9, which simplifies to get 1/3. This is the final answer.

PART B: To calculate the scale factor enlargement going from the small shape to the large shape you have to use the equation SF enlargement = large/small. Using the figures on the side of the shape I need to have 9/3, which simplifies to get 3. This is the final answer.

Solve the equation
cb – 20 = –10 for b.

Answers

ANSWER: B = 10/C
You have to isolate the variable by dividing each side by factors that don’t contain the variable

What’s the value?? HELPPPP

Answers

Answer:

ok well I think it is 16

Step-by-step explanation:

because the parentheses first 2 x 2 x 2=8

then we have the outside of the parentheses 2, 8x2=16

so I think the answer is 16

Let's see

[tex]\\ \rm\rightarrowtail (2^3)^2[/tex]

(a^m)^n=a^mn

So

[tex]\\ \rm\rightarrowtail 2^{3(2)}[/tex]

[tex]\\ \rm\rightarrowtail 2^6[/tex]

[tex]\\ \rm\rightarrowtail 64[/tex]

If Chris looks at the clock 10 minutes into class and the clock reads 9:15 A.M., what time did class begin?

Answers

Answer:

9:05

Step-by-step explanation:

just took the text

hope this helps!!!!

Answer:

9:05

Step-by-step explanation:

:15- 10 =5

Somebody help

The graph shows the calling charges of two cell phone companies. At how many minutes do the two companies charge
20
18
cell phone
company A
16
14
+
+
10
Charges
cellphone
company B
10 20 30 40 50 60 70 80
Time (minutes)
OA 0
OB. 15
OC 20
OD 40

Answers

Put it to more points longer the question is so n00000

Help! I’ll mark brainly list but please explain!!

Answers

the answer is 4 [9.75] + 2 (6.25) + 4.75

u would find the price of the movie tickets and popcorn. since your only buying one water, u don’t need to multiple the price by anything.

In London. I pint of milk costs 58p.
In Paris, 1 litre of milk costs 1.05 euros.
1 litre = 1.76 pints
£1 = 1.17 euros
In which city is the milk better value for money, London or Paris?
You must show your working.

Answers

Comparing the equivalent cost of Milk in Euro in the two countries, then we can conclude that Milk is a better value for money in Paris.

In other to make accurate comparison of the cost ; we need to using the same unit or milk and same currency value :

Cost of 1 pint of Milk in London :

1 pint = 0.58 pounds

The equivalent value of 1 pint of Milk in terms of Euro in London will be :

1 pound = 1.17 euro

0.58 pound = x

Cross multiply :

x = 1.17 × 0.58

x = 0.6786 euro

x = 0.68 euro

Hence, 1 pint of Milk cost 0.68 euro in London

Cost of 1 pint of Milk in Paris :

1 Litre = 1.76 pint

Hence,

1.76 pint = 1.05 euro

1 pint = c

1.76c = 1.05

c = 1.05 / 1.76

c = 0.597 euro

Hence, cost of 1 pint of Milk cost 0.60 euro in Paris

Therefore, since the cost of Milk in Paris cost less in Paris than in London, then Milk is a better value for money in Paris.

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this is the last qestion help plz

Answers

Answer:

$513.75

Step-by-step explanation:

Let h represent the number of hours he worked in a week

An auto mechanic earns $498.75 in 35 hours during the week. His pay is $2.50 more per hour on weekends.

Hence, his pay Is represented by equation:

$498.75 + $2.50 × x

If he works 6 hours on the weekend in addition to the 35 hours during the week

$498.75 + $2.50 × 6

= $498.75 + $15

= $513.75

Therefore, he earns $513.75

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