9514 1404 393
Answer:
-28/45
Step-by-step explanation:
Step 1, the sign
When the fractions have an odd number of minus signs (1, not 0 or 2), the result will be negative. This knowledge lets you ignore the sign while you do the rest of the arithmetic. The appropriate sign is applied to the final numbers.
Step 2, the formula
The ratio (a/b)÷(c/d) is (ad)/(bc). There are several ways you can get there:
⇒ "invert and multiply" or "swap dot"
[tex]\dfrac{a}{b}\div\dfrac{c}{d}=\dfrac{a}{b}\,\cdot\,\dfrac{d}{c}=\dfrac{ad}{bc} \quad\text{division is multiplication by the reciprocal}[/tex]
⇒ "numerators of a common denominator"
[tex]\dfrac{\left(\dfrac{a}{b}\right)}{\left(\dfrac{c}{d}\right)}=\dfrac{\left(\dfrac{ad}{bd}\right)}{\left(\dfrac{bc}{bd}\right)}=\dfrac{ad}{bc}[/tex]
⇒ "swapped denominators of a common numerator"
[tex]\dfrac{\left(\dfrac{a}{b}\right)}{\left(\dfrac{c}{d}\right)}=\dfrac{\left(\dfrac{ac}{bc}\right)}{\left(\dfrac{ac}{ad}\right)}=\dfrac{ad}{bc}[/tex]
The use of common numerators or common denominators is most often seen when the numerator or denominator of one fraction is a multiple of that in the other fraction. Example: (2/3)÷(1/6) = (4/6)÷(1/6) = 4/1 = 4
Step 3, reduce the result
Any of these fractions is reduced by cancelling common factors from numerator and denominator. Your fractions here don't have any common factors, so there is nothing to cancel.
_____
Your product is ...
(4/9) ÷ (-5/7) = -(4·7)/(9·5) = -28/45
Simplify fully e x e x e x f/ e x e x f x f
Given:
The given expression is
[tex]\dfrac{e\times e\times e\times f}{e\times e\times f\times f}[/tex]
To find:
The simplified form of given expression.
Solution:
We have,
[tex]\dfrac{e\times e\times e\times f}{e\times e\times f\times f}[/tex]
The common factors in numerator and denominator are e, e, f.
Cancel out the common factors.
[tex]=\dfrac{e}{f}[/tex]
Therefore, the required expression is [tex]\dfrac{e}{f}[/tex].
evaluate expressions(-2/5) (-1 1/4)
THIS IS ONE OF THE BENCHMARK QUESTIONS THATS ALL IT SAID
Answer:
Exact Form:
−33/20
Decimal Form:
−1.65
Mixed Number Form:
−1 13/20
If it costs $80,000 to put on an event and the total revenue is $250,000, what is the profit as a percentage of revenue? (Round to the nearest percent.)
jamar has a 8 foot long piece of wood that he wants to cut to build a tree house if each is going to be 5/6 foot long, what is the greatest number of pieces he will be able to use
Answer:
The greatest amount of pieces he would be able to use would be 9 because 8 divided by 5/6= 9 and 3/5.the 3/5 piece is too short.
Step-by-step explanation:
slove for x pleaseee
10)
What is the circumference of a 12-inch diameter pizza? Leave the answer in terms of it.
A)
371
B)
677
o
1270
D)
2471
Plsss helppp!!
PLZ HELP!This is my only question left!!! plzzzzz
Answer:
12.84 degrees
Step-by-step explanation:
sin(x)=2/9
what is the value of x
Answer: 35
Step-by-step explanation:
You would set up the equation
25/x=20/28 cross multiply 25•28 and then divide by 20
Step-by-step explanation:
25/x = 20/28
20x = (25)(28)
x = (25)(28) ÷ 20
Katie bought 0.78 pounds of peanuts and 0.07 pounds of raisins. How many pounds of snacks did she buy in all?
Answer:
0.85
Step-by-step explanation:
you add them... duh
43%
Mrs Hassan gave her Year 8 class a test on Friday.
The highest possible mark for the test was 10.
The results are shown below.
201
a) How many pupils scored more
than 7 in the test?
15
b) How many pupils are there in
Mrs Hassan's Year 8 class?
Number of pupils
10
5
c) What assumption have you
made in answering part b)?
0 1 2 3 4 5 6 7 8 9
10 Test mark
Clip 10
View One Minute Version
O
Answer:
The answer is below
Step-by-step explanation:
a) The number of pupils who scored more than 7 in a test = pupils who shored 8 + pupils who shored 9 + pupils who shored 10
The number of pupils who scored more than 7 in a test = 7 + 3 + 1 = 11 pupils
b) Total number of pupils = pupils who shored 0 + pupils who shored 1 + pupils who shored 2 + . . . + pupils who shored 9 + pupils who shored 10
Total number of pupils = 0 + 1 + 4 + 0 + 0 + 8 + 0 + 2 + 7 + 3 + 1 = 26 pupils
c) It is assumed that nobody scored either 0 or 3 or 4 or 6. Also the highest mark was assumed to be 10
Answer:
Step-by-step explanation:
What is the probability of rolling an even number on a number cube containing numbers 1 through 6? *
Answer:
[tex]\frac{1}{2}[/tex] or 50%
Step-by-step explanation:
Cube has 6 sides = 3 odds and 3 even
probability is found using
[tex]\frac{number of favourable outcomes}{number of total outcome}[/tex] which is [tex]\frac{3}{6} or \frac{1}{2}[/tex]
1/2 = 50%
The function y= -0.2 + 0.5 represents the percent y (in decimal form) of battery power remaining x hours after you turn on a laptop computer.
A. Identify and intercept the x- intercept
B. Identify and intercept the y-intercept
Answer:
A
Step-by-step explanation:
intercept the x- intercept
Answer:
Step-by-step explain
x-intercept: 2.8 hours
y-intercept: 0.7 . . . . fraction of power remaining
Step-by-step explanation:
The equation is in slope-intercept form, so the y-intercept can be read directly: 0.7.
To find the x-intercept, set y=0 and solve for x:
0 = -0.25x +0.7
0.25x = 0.7 . . . . . add .25x
x = 2.8 . . . . . . . . . multiply by 4 (that is, the reciprocal of 0.25)
The x-intercept is 2.8; the y-intercept is 0.7.
You are saving up to buy a new car and deposit $1300 into an account that pays an annual interest rate of 5% compounded quarterly. How much will be in
the account after 6 years?
Answer:
I believe the answer is $1,742.12
Sorry if im wrong!
which equation is represented by the phrase a number increased by 3 equals 10
Identify the mapping diagram that represents the relation and determine whether the relation is a function.
{(–3, –6), (–1, –6), (5, –6), (8, –6)}
Which of the following is true?
choice b.
choice c.
choice d.
choice a.
Answer: THE ANSWER IS
Determine if the relation is a function.
The relation is a function.
Find the domain and range.
Domain:
{−3, −1, 5, 8}
Range:
{−6}
Graph.
{(−3,−6), (−1, −6), (5, −6), (8, −6)}
Determine if the relation is linear.
The relation is linear
Find the inverse.
( − 6 , − 3 ) , ( − 6 , − 1 ) , ( − 6 , 5 ) , ( − 6 , 8 )
Step-by-step explanation: IT'S NOT A OR D.. ig
1: Recall that a function from a set to a set is a relation that assigns to each element in the set exactly one element in the set . The set is the domain (or set of inputs) of the function and the set contains the range (or set of outputs).
The general characteristics of functions are:
A. Each element in A must be matched with an element in B.
B. Some elements in B may not be matched with any element in A.
C. Two or more elements in A may be matched with the same element in B.
D. An element in A (the domain) can not be matched with two different elements in B.
________________________________________________
Solving this problem we have:
1. The mapping diagram is represented in Figure 1. As you can see this is a function. Each element in A is matched with an element in B. All the elements in A are matched with the same element in B. So, this fulfills with the definition of function.
2. The mapping diagram is represented in Figure 2. This is not a function. Notice that an element in A (the domain) is matched with two different elements in B, that is, -8 is matched with -6 and 1.
2: #1) This is a function.
#2) This is not a function.
(The mapping diagrams are not present to match to these.)
Explanation:
A function is a relation in which each element of the domain is matched to no more than one element of the range; in other words, no x gets mapped to more than 1 y.
In #1, no x is mapped to more than 1 y, so it is a function. However, in #2, -8 is mapped to both -6 and to 1; this x is used more than once, so this is not a function.
3: what is the primary responsibility of the legislative branch
--------------------------------------------------------------------------------------------
it represents new mexico in foreign affairs
4: Answer:
Option D is correct.
The relation {(-8, -6) (-5, 2) (-8, 1) (7, 3)} is not a function.
Step-by-step explanation:
Given the relation: {(-8, -6) (-5, 2) (-8, 1) (7, 3)}
Domain is the set of all possible inputs of a relation i.e { -8, -5 , -8 , 7}
Range is the set of output values of a function i.e, {-6, 2 , 1 , 3}
The mapping as shown below in the figure:
A function is a relation in which every element of the domain is matched to not more than one element of the range.
In other words, we can say that ,no value of x gets mapped to more than 1 value of y.
Since, from the mapping you can see that the domain value -8 paired with -6 and 1; as x is used more than once.
Therefore, this relation is not a function
Which number line shows the solution to the inequality
4x + 529?
Answer:
like the other person said! Where are the number lines?
Step-by-step explanation:
What is the measure of angle U?
A. 35°
B. 45°
C. 100°
D. 180°
Answer:
c
Step-by-step explanation:
e has the same exact angle
Answer:
c
Step-by-step explanation:
same as her/him heheheh I I really
Shelby can type many words (w) in a minute (t). Which equation shows the number of words she can type in 5 minutes?
w=5t
w=t+5
w=t5
Answer:
w = 5t
Step-by-step explanation:
usually, numbers are written before the letters.
Answer:
you have your answer to this but hiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii
how are you
can someone help please?
Answer:
x = 54
Step-by-step explanation:
In this line, I am going to assume lines l and m are parallel.
Each flat surface is half of a circle, therefore it has 180 degrees. We are given one side and told to find the other.
180 - 116 = 64.
The other angle's total value must be 64.
Now, to solve for x, subtract 10 from 64 [inverse operations].
64-10=54
The value of x in this equation is 54 degrees.
please hlelp meeeeeeeeeeeeee i need help
Answer:
3/4
Step-by-step explanation:
Total number of cases = 8 [1,2,4,2,5,3,1,2]
No. of number less than 4 = 6 [1,2,2,3,1,2]
Probability = 6/8 = 3/4
Answer: 75%
Step-by-step explanation:
Well there are 8 possibilities every time you spin. The chance is 6/8 that you land on a number less than 4, if you spin it once (since 6 out of the 8 possibilities are less than 4). So you just have to divide 6/8 which is 0.75. Multiply by 100 (move the decimal over 2 times to the right) to get the percentage which is 75%.
What is the total surface area??? Please help
Answer:
216
Step-by-step explanation:
8(6) + (10+6+8)(7)
48 + 24x7
48 + 168
216
Plz, answer this question plz!
Plz, answer this question plz!
Answer:
24
Step-by-step explanation:
4 x 3 x 2 x 1 = 24
or P(4,4) = 4! = 24
Y=6x-3 function rule
Answer:
f(x) = 6x - 3
Step-by-step explanation:
Help pls ASAP!!! THX
Answer:
a concave lens is exactly the opppostie with outer surfaces curving inward, so it makes parallel light rays curve outward or diverge. That's why concave lenses are sometimes called diverging lenses. ... The distance from the center of the lens to the focal point is, again, the focal length of the lens.
Step-by-step explanation:
Help please!!! I’ll give brainliest!!
Answer:
g= -9
Step-by-step explanation:
The daily changes in selling price for a particular stock during a week were: 4.25, +0.95, -2.42, +1.11, - 2.2. What was the average daily change in selling price for the stock during this week?
URGENT HELP !!!!!! Answer correctly !!!!!!!!!!!! Will be marking brainliest !!!!!!!!!!!!!!
Answer:
exact: 3 √ 5
decimal: 6.70820393
Step-by-step explanation:
Hope this helps
#4 Find the area of the figure below
Answer:
Im pretty sure the answer is 327.96
Step-by-step explanation:
Bethany can mow her family’s lawn in 4 hours. Her brother Colin can mow the lawn in 3 hours. Which equation can be used to find the number of hours, x, it would take for Bethany and Colin to mow the lawn together?
Answer:
Step-by-step explanation:
t/4+t/3=1
(3t+4t)/12=1
7t/12=1
7t=12
t=12/7
x=(12/7)hours
Answer:
1/4 + 1/3 = 1/x
Step-by-step explanation:
"Bethany can mow her family’s lawn in 4 hours."
In 1 hour, she does 1/4 of the job.
"Her brother Colin can mow the lawn in 3 hours."
In 1 hour, he does 1/3 of the job.
When they work together, in 1 hour they do 1/4 + 1/3 of the job.
When they work together, they can mow the lawn in x hours.
In 1 hour, they do 1/x of the job. This means that 1/4 + 1/3 must equal 1/x.
1/4 + 1/3 = 1/x
15 pounds of beans are distributed equally into 10 bags to give out at the food bank. How many pounds of beans are in each bag? Enter you answer in simplist form.
Answer:
1.5, or 1 1/2
Step-by-step explanation: