plz help its timed I need to get my grades up
Answer:
4 12/18, simplified is 4 6/9
Step-by-step explanation:
You change the fractions to improper fractions so 10 1/2 to 21/2 and 2 1/4 to 9/4. Since we can't divide, we change 9/4 to 4/9 and multiply. 21 times 4 is 84 and 2 times 9 is 18. Since that is an improper fraction, we have to change it to a mixed number. 18 can go into 84 4 times, and 18 x 4 is 72. 84 minus 72 is 12 so the final answer is 4 12/18 (simplified 4 6/9)
Hope this helps :)
Erica buys a new backpack that has an original price of $50. She uses a coupon that saves her 20% off the original price. How much money did she save? SHOW YOUR WORK!
Differentiation
Please help me!
Answer:
[tex] \frac{dy}{dx} = - 1 \frac{5}{9} [/tex]
Step-by-step explanation:
Please see the attached picture for the full solution.
☆ [tex]\frac{1}{x} = x^{ - 1} [/tex]
. El equipo logístico de una empresa marítima ha comprado un nuevo buque. En
ciones técnicas se establece que el volumen máximo desplazado por el buque con máxima car-
ga es de 70,000 mº de agua salada cuya densidad es de 1027 kg/m². ¿Cuántas toneladas puede
transportar el buque si su peso sin carga es de 20,000 toneladas?
Answer:
idontkn oww atyou rsayin g
h
Step-by-step explanation:
A small town has two local high schools. High School A currently has 850 students
and is projected to grow by 35 students each year. High School B currently has 700
students and is projected to grow by 60 students each year. Let A represent the
number of students in High School A int years, and let B represent the number of
students in High School B after t years. Write an equation for each situation, in terms
of t, and determine after how many years, t, the number of students in both high
schools would be the same.
Answer:
For High School A, let [tex]S_A(t)[/tex] denote the number of students after [tex]t[/tex] years. Define [tex]S_B(t)[/tex] analogously.
Then [tex]S_A(t) = 850 + 35t[/tex] and [tex]S_B(t) = 700 + 60t[/tex].
After 6 years the number of students in both high schools would be the same.
Step-by-step explanation:
For High School A, let [tex]S_A(t)[/tex] denote the number of students after [tex]t[/tex] years. Define [tex]S_B(t)[/tex] analogously.
Since we start out at 850 students at High School A and it is growing by 35 students every year, we must have that [tex]S_A(t) = 850 + 35t[/tex].
Since we start out at 700 students at High School B and it is growing by 60 students every year, we must have that [tex]S_B(t) = 700 + 60t[/tex].
Setting the two equations equal to each other, we see that [tex]850+35t=700+60t\\850-700=60t-35t\\25t=150\\t=6[/tex]
So after 6 years the number of students in both high schools would be the same.
The expression 2(l + w) is used to calculate the perimeter of a rectangle, where I is length and w is width. If the length is 2/5 unit and the width is 1/5 a unit, what is the perimeter of the rectangle in units?
3/5
1
1 1/5
2 3/5
Answer:
I think it is 1
Step-by-step explanation:
I am sorry if it is not correct
are 1/2 and 8/16 equivalent rates?
Yes.
8/16 is 1/2 of 16/16
In ΔJKL, k = 430 cm, l = 590 cm and ∠J=117°. Find the length of j, to the nearest centimeter.
Answer:
874
Step-by-step explanation:
The length of j from the given triangle JKL is 550 cm.
What is cosine rule?The law of cosine states that the square of any one side of a triangle is equal to the difference between the sum of squares of the other two sides and double the product of other sides and cosine angle included between them. The law of cosine states that: a² = b² + c² − 2bc·cosA.
Given that, in ΔJKL, k = 430 cm, l = 590 cm and ∠J=117°.
Using cosine rule
j²=k²+l²-2kl.cosJ
j²=430²+590²-2×430×590·cos117°
j²=184900+348100-507400×0.4539
j²=533000-230308.86
j²=302691.14
j=√302691.14
j=550 cm
Therefore, the length of j from the given triangle JKL is 550 cm.
Learn more about the cosine rule here:
https://brainly.com/question/28716982.
#SPJ2
If 9 garden hoses cost $196.83 and the price of each hose is the same how much does each hose cost?
Answer:21.87
Step-by-step explanation:
196.83 divided by 9
Answer:
They each cost $21.87
Step-by-step explanation:
If each hose costs the same you can just divide the total (196.83) by the number of hoses (9) to get 21.87.
2
Selecting a Colored Ball
An urn contains 3 red balls, 2 blue balls,
and 5 white balls. A ball is selected and
its
color noted. Then it is replaced. A
second ball is selected and its color
noted. Find the
probability of each of these.
Selecting 1 blue ball and then 1 white
ball
Order the following from LEAST to GREATEST: -0.9, -4/5, -1/4, -1/2, -7/10
-0.9, -4/5, -7/10, -1/2, -1/4
Answer:
The answer is -0.9, -4/5, -7/10, -1/2, -1/4.
Step-by-step explanation:
-4/5 = -0.80
-7/10 = -0.7
-1/2 = -0.5
-1/4 = -0.25
what is the best lofi chill song for study
Answer:
"Chilling in a Quiet Park Outside the City" by Cat Paw.
Step-by-step explanation:
Simplify the following expression: (5x2 + 3x + 4) − (2x2 + 5x − 1). If the final answer is written in the form Ax2 + Bx + C, what is the value of A? Give only the numeric value of A, and do NOT give variables in your answer.
Answer:
b
Step-by-step explanation:
.....
A house is losing value at a rate of 5.4% per year. In 2009, the house was worth $331,000. Find the value of the house in 2021.
Answer:
$169803
Step-by-step explanation:
Given data
rate of decrease = 5.4%
time = 2009-2021= 12years
P= $331,000
Let us apply the compound interest formula
A=P(1-r)^t----------------note the minus sign because this is a decrease
A= 331000(1-0.054)^12
A= 331000(0.946)^12
A= 331000*0.513
A=$169803
Hence the value in 2021 is $169803
PLEASE HELP ME SOLVE this
Answer:
y=-12/11
Step-by-step explanation:
y-(-12/11)=0(x-(-12/13))
y+12/11=0(x+12/13)
y+12/11=0
y=-12/11
Since the slope equals 0, then the line is horizontal.
9 + 9h
=
10h + 2 is this infinite solution
Answer:
no, h=7
Step-by-step explanation:
9+9h = 10h+2
9=h+2
7=h
Erica watched 1 4 of a movie in the morning, and she watched some more at night. By the end of the day, she still had 2 3 of the movie left to watch. How much of the movie did Erica watch at night?
Answer:
1/6 of the movie
Step-by-step explanation:
a rational number is defined as any number that can be written as a fraction with a non zero denomination
true or false?!
Answer:
True
Step-by-step explanation:
opposite is irrational number
Which of the following correctly graphs the system of equations?
{y=x−3
y=−2x+3
The third one
This graph is the only one that shows the correct slops with the correct y intercepts (-3 and 3)
Brian wants to earn $83.49 in 5.5 days how much money would he need to earn each day to reach his goal
Answer:
15.18
Step-by-step explanation:
Divide $83.49 by 5.5
Answer:
$15.18 a day
Step-by-step explanation:Divide $83.49 by 5.5. You get 15.18. To check this, multiply 5.5 and 15.18 and you should get 83.49. Hope this helped
Fill in the blank:
The function is _________ over the interval [3,1].
A. increasing
B. decreasing
C. constant
Answer:
increasing
Step-by-step explanation:
its increasing because it goes back up at a fast rate
plsssssss help me
I will give u 10 points
Which situation CANNOT be represented by this equation?
- 1x + 15 = 9
Explanation:
The term "rising" will indicate that we should use positive 1/3 instead of negative 1/3.
Choices A and C use "decreasing" which is why they involve -1/3. This is why we can rule out these two choices.
x + 14 = 26, x =
I need help please
x=12
hope this helps :))
Answer:
x = 12
Step-by-step explanation:
subtract 12 from the 26 and you get 14 so x = 12
HELP ME PLEASEEEEEEE
Answer:
Step-by-step explanation:
cos o = adjacent side /hypothenuse = OQ / PO
21x+6y=42
7x+2y=14
For this case we have the following system of equations:
We multiply the second equation by -3:
Thus, we observe that the second equation is equivalent to the first, if we add both we get:
The equality is fulfilled. The lines are on top of each other.
Answer:
Infinite solutions
2 Which expression is equivalent to -6(- + 2x)? )? 0 -4- 12x O-4+ 2x 04-12x 0 4+ 12x
Answer:
4+12x
Step-by-step explanation:
basically just adding and subtracting
The expression which is equivalent to -6((-2/3) + 2x) is; 4 - 12x.
Equivalent expressionsThe given expression is;
-6((-2/3) + 2x)Hence, upon expansion and elimination of the parenthesis;.
= -6(-2/3) -6(+2x)Hence, the equivalent expression is; 4 - 12x.
Read more on equivalent expressions;
https://brainly.com/question/11258067
If ABCD is a square, what is m
Answer:
I think m is the length of ABCD Square
Which expression is equivalent to (7^3)^-2 Please help
Four times a number plus three times the number is the same as 14 more than
5 times the number. Find the number.
Answer: Number equals 7
Step-by-step explanation:
4x+3x=5x+14
7x=5x+14
-5x -5x
2x=14
x=7