Answers
Answer:
[tex]2\frac{1}{4}[/tex]
Step-by-step explanation:
Operations With Fractions
Simplify the following operations:
[tex]\displaystyle -5\frac{1}{4}-\left(-7\frac{1}{2}\right)[/tex]
Convert the mixed fractions to improper fractions:
[tex]\displaystyle 5\frac{1}{4}= 5+\frac{1}{4}=\frac{21}{4}[/tex]
[tex]\displaystyle 7\frac{1}{2}=7+\frac{1}{2}=\frac{15}{2}[/tex]
Substituting:
[tex]\displaystyle -5\frac{1}{4}-\left(-7\frac{1}{2}\right)=-\frac{21}{4}-\left(-\frac{15}{2}\right)[/tex]
Simplifying:
[tex]\displaystyle -5\frac{1}{4}-\left(-7\frac{1}{2}\right)=-\frac{21}{4}+\frac{15}{2}[/tex]
Amplifying the second fraction by 2:
[tex]\displaystyle -5\frac{1}{4}-\left(-7\frac{1}{2}\right)=-\frac{21}{4}+\frac{30}{4}[/tex]
Adding both fractions:
[tex]\displaystyle -5\frac{1}{4}-\left(-7\frac{1}{2}\right)=\frac{9}{4}=2\frac{1}{4}[/tex]
Answer: [tex]\mathbf{2\frac{1}{4}}[/tex]
Related Questions
A line with a slope of 8 passes through the points (-1,1) and (0,k). What is the value of k?
Answers
Answer:
k = 9
Step-by-step explanation:
Calculate the slope m using the slope formula and equate to 8
m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]
with (x₁, y₁ ) = (- 1, 1) and (x₂, y₂ ) = (0, k)
m = [tex]\frac{k-1}{0+1}[/tex] = k - 1 = 8 ( add 1 to both sides )
k = 9
A man runs the London marathon at an average speed of 8mph the route is 26 miles what was his time in hours and minutes
Answers
Answer:
the only thing you need to do is to divide the speed with the distance
no its nto rm what is 6667x2228 divided by 34394u9 and subtracted by 343 and then divided again by 2 and then subtract 333 and then multiply 439483
Answers
Answer:
vvvvvvvvvvvvvvvvvvvvvv is equal to 65654
Step-by-step explanation:
I WILL GIVE BRAINLIEST!!!
If –18 < –8, which of the following must be true?
–8 is to the right of 0 on a number line.
–18 is to the left of –8 on a number line.
–18 is to the right of –8 on a number line.
–18 is to the right of 0 on a number line.
Answers
The second choice would be the option here because the greater numbers are always on the right while the lower numbers are on the left.
Hope this helps!
When comparing negative numbers you have to remember, negatives on a number line always go to the left of 0.
please help me PLEASE HELP ME!!!!!!!!!!!! PLEASE HELP ME!!!!!!!!!!!! PLEASE HELP ME!!!!!!!!!!!! PLEASE HELP ME!!!!!!!!!!!! PLEASE HELP ME!!!!!!!!!!!! PLEASE HELP ME!!!!!!!!!!!! PLEASE HELP ME!!!!!!!!!!!! PLEASE HELP ME!!!!!!!!!!!!
Answers
Answer:
2.1/3
3.7/11
Step-by-step explanation:
Answer:
(2) 1/3
(3) 7/11
Complete the table below.
HeLPP ILL GIVE BRAINLIEST!
Answers
Answer:
see explanation
Step-by-step explanation:
Substitute the value of x into y = x² and y = [tex]2^{x}[/tex]
x = 1
y = 1² = 1 and y = [tex]2^{1}[/tex] = 2
x = 2
y = 2² = 4 and y = 2² = 4
Thus
x y = x² y = [tex]2^{x}[/tex]
-----------------------------
0 0 1
1 1 2
2 4 4
Which equation describes the line with slope 5, that contains the point (-2, 4)?
a: y = 5x - 22
b: y = 5x - 2
c: y = 5x + 4
d: y = 5x + 14
Answers
Answer:
C
Step-by-step explanation:
Answer:
D.) y=5x+14
Step-by-step explanation:
point slope form: y-y1=m(x-x1)
y1=4, m=5, x1=-2
y-4=5(x+2)
distribute 5
y-4=5x+10
add 4 to both sides
y=5x+14
The sum of two integers is -129, if one of them is 150, find the order
Answers
Answer: -279
Step-by-step explanation:
-129-150= -279
to check
-279+150= -129
What is the constant of proportionality?
Answers
Answer:
The constant of proportionality is the ratio between two directly proportional quantities. Two quantities are directly proportional when they increase and decrease at the same rate.
Step-by-step explanation:
Here it is.
Constant of proportionality = 4
if a/b=1 and a+b=10, then what does ab equal?
Answers
Answer:
5 and 5
Step-by-step explanation:
5 divided by 5 is 1
5 plus 5 is 10
HELP ME FIND THE SLOPE
Answers
Answer:
[tex]m=\frac{-5}{2}[/tex]
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDASAlgebra I
Slope Formula: [tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]Step-by-step explanation:
Step 1: Define
Choose any 2 points from the chart.
Point (-6, 11)
Point (-2, 1)
Step 2: Find slope m
Substitute: [tex]m=\frac{1-11}{-2+6}[/tex]Subtract/Add: [tex]m=\frac{-10}{4}[/tex]Simplify: [tex]m=\frac{-5}{2}[/tex]An exponential function is a type of geometric sequence.
True or False
Answers
Answer: True
Step-by-step explanation:
I hope this helps!!!
Find the solution of the system of equations.
First equation,
4x – 3y = -13
Second equation,
-x+ 6y = -44
Answers
HELP!!
Uber is running a special! You pay an initial charge of $3.25 plus 1.50 per mile. Write an equation that can be used to find y, the total cost of the trip, if x represents the number of miles of the trip?
Answers
Answer:
y=1.50x+3.25
Step-by-step explanation:
Find the irrational number between 0.3101 and 0.3333
Answers
Answer:
π/10
Step-by-step explanation:
Irrational Numbers
The irrational numbers are identified because, unlike rational numbers, they cannot be expressed as fractions, i.e., as the result of a division between two integers.
If a number is expressed with a limited number of decimals, it's always possible to write it as a rational.
For example, number 1.2319 can be written as 12319/10000.
Even if the number has an unlimited decimal expression, it could be expressed as rational if the decimal part is periodic. Number 2.33333... is rational because it's equivalent to the fraction 7/3.
We need to find an irrational number between 0.3101 and 0.3333.
Any number within the range with unlimited non-periodic decimals will do:
0.3189567363.... is a good example.
We'll choose the number
π/10 since π is a known irrational number and π/10=0.3141592... lies in the given interval.
Wendy and Mini earn $49 per week for delivering magazines. Wendy worked for x weeks and earned an additional total bonus of $18. Mini worked for y weeks. Which expression shows the total money, in dollars, that Wendy and Mini earned for delivering magazines
Answers
Answer:
(49x + 18) + 49y
Step-by-step explanation:
you woud place the variable (letter) representing the number of weeks they worked by the amount they get paid each week then, you would add to whoever gets an extra amount of money, the y - intercept or in this case the extra 18 dollars one of them gets paid to whoever got paid that amount of extra money. :)
Answer:
C( 49x + 18 + 49y)
Step-by-step explanation: I GOT 100% ON MY TEST
What is the approximate area of the circle shown below
Answers
Answer:
154
Step-by-step explanation:
1) f(x) = 5x^4+ 49x^2+ 36
Answers
Answer:
That's the simplest I could do, sorry
what is the rate of change?
Jose has $6 and saves $1 a day.
Answers
Answer:
The rate of change is 1$
Step-by-step explanation:
Jose is getting one dollar a day (the only thing in the equation that is changing)
please helpppp
ill mark you brainliest
Answers
Answer:
D.) y < -1/5x + 1
Step-by-step explanation:
I sense that you're in a rush, so I'll spare you the lecture, haha.. Just trust.
A person rents a moving truck for the day. There is an initial rental fee of $20 and an additional $0.25 every mile driven. Write the equation representing cost, C(m) as a function of the number of miles traveled, m.
C(m)=
Answers
Answer:
Step-by-step explanation:
cost is 20 fee + .25 per mile.
c =20+0.25m
For every $9 invested in company A, $2 is invested in company B. Stacey quizzes her children, Krista and Kevin, about how much money she will invest in company A if she invests $24 in company B. Krista and Kevin used two different methods to arrive at the answer to Stacey's problem. Let's see who found the correct answer and how. You'll answer some questions along the way.
Answers
Answer:
$108
Step-by-step explanation:
From the above question, we have the proportion:
Company A/Company B
= $9/$2 = x/x24
The next step is : We Cross Multiply
2x = $24 × $9
x = $24 × $9/2
x = $108
Therefore, she will invest in $108 company A if she invests $24 in company B.
The length of a rectangle is twice its width. If the rectangle's perimeter is 200
inches, what are the length and width of the rectangle?
Answers
Step-by-step explanation:
set that width is x
and length become 2X
P = 2×( X+ 2X )
200 = 6 X
X=33. 3
width = 33.3 inch
length = 66. 6 inch
Solve for x -10 + x = -12
Answers
Hope this helped you, if it did plz mark Brainlyest
Answer:
=-1
Step-by-step explanation:
−
1
0
+
=
−
1
2
{\color{#c92786}{x}}-10+{\color{#c92786}{x}}=-12
x−10+x=−12
2
−
1
0
=
−
1
2
what is 45% of 40 in part, whole, and percent?
Answers
I need help with this question 3 and 4
Answers
Answer:
Both Yes
Step-by-step explanation:
both have a 90 degree angle
half
a number added
to the number gives 144
what is the number
Answers
4x = 144 *3
x = (144/4) *3
x=36*3
x=108
The number is 108 :)
Answer:
[tex]the \: number \: is \: 96[/tex]
Explanation:
[tex]let \: the \: number \: be \: = \: x [/tex]
[tex] \frac{x}{2} + x = 144[/tex]
[tex]2( \frac{x}{2} ) + 2(x) = 2(144)[/tex]
[tex]x + 2x = 288[/tex]
[tex]3x = 288[/tex]
[tex] \frac{3x}{3} = \frac{288}{3} [/tex]
[tex]x = 96[/tex]
What is the coefficient in the expression 5+ 9y5+9y5, plus, 9, y?
Answers
Answer:
Step-by-step explanation:
The coefficient is the number part.
Answer:
9
Step-by-step explanation:
Correct me if i'm wrong
Simplify r^6 • r^5 type your answer in the box
Answers
Answer:
r^11
Step-by-step explanation:
HELP ME
screenshot down below !
Answers
Answer: A
Step-by-step explanation:
Use pythagorean thm to solve for the hypotenuse. so [tex]\sqrt{36+144}[/tex] is 13.4