Answer:
1,080
Step-by-step explanation:
There is 60 minutes in 1 hourSo, 18 hours would be 60, 18 times, or 18, 60 times18 × 60 = 1,080I hope this helps!
Jasmine, Abby, and Amber had $865 altogether. Jasmine spent 2/5 of her money. Abby spent $40, and Amber spent twice as much as Jasmine. If the three friends had the same amount of money left, how much money did Abby have in the beginning?
Answer:
288.333333333
Step-by-step explanation:
Me, personally am not great with math, but I can say you have to take $865 then take away $40 then decide how much they get apiece. to do that you must divide 865 from 3. afterwards you should take that number away from 865 remember that you are also taking away 40 then you have your final answer
The length of a rectangle is 3 ft longer than its width. The perimeter of the rectangle is 30 ft. Write an equation to represent the perimeter in terms of its width w. What is the length of the rectangle?
Answer:
Let the width of the rectangle be w.
Let the length of the rectangle be l.
★ If the length is 3 feet longer than the width, then the length can be written in terms of the width as:
l = w + 3Now, the formula for finding the perimeter is p = 2l + 2w.
Substituting the values in this formula -[tex] \\ \implies \sf \: p = 2(w + 3) + 2w \\ \\ \\ \implies \sf \: p = 2w + 6 + 2w \\ \\ \\ \implies \sf \: p = 4w + 6 \\ [/tex]
Substituting P = 30 for p ( allows us to solve for p) -[tex] \\ \implies \sf \: 30 = 4w + 6 \\ \\ \\ \implies \sf \: 30 - 6 = 4w + 6 - 6 \\ \\ \\ \implies \sf24 = 4w \\ \\ \\ \implies \sf \: w = \frac{24}{4} \\ \\ \\ \dag \: \large{ \underline{ \boxed{ \sf{ \: w = 6 \: cm}}}} \\ [/tex]
Substituting w = 6 for l in the equation l = w + 7 -
[tex] \\ \implies \sf \: l = 6 + 7 \\ \\ \\ \implies \sf \blue{l = 13 \: cm}[/tex]
Answer:
Step-by-step explanation:
30=2(3)+2w
write each decimals as a fraction in simplest form
The questions is on the picture
Answer:
-7>-12
2>-2
-5<-3
∣-9∣ = 9
∣13∣ = 13
∣-5∣ = 5
Step-by-step explanation:
Hope this helps.Please mark my answer as brainliest
What is 0.56% of 4800? Round to the nearest hundredth (if necessary).
Answer:26.88=27.00
Step-by-step explanation:
Translate this sentence into an equation.
The product of 5 and Jenny's score is 65 .
Use the variable j to represent Jenny's score.
Answer:
5j=65
Step-by-step explanation:
the product of 5 and Jenny's score must be equal to 65. Sense we don't know Jenny's score, replace it with j and multiply it by 5.
Anthony says |7| and |-7| are the same number. Nina says |7| and |-7| are different numbers. Hunter says |7| and |-7| both equal 0. Eli says |7| and |-7| combine to make 0. Who is correct?
Answer: Anthony
Step-by-step explanation: |7| = 7, and |-7| = 7.
i will mark brainliest xx.
Answer:
A
Step-by-step explanation:
Answer:
It is the first one
Step-by-step explanation:
Which division expression means that the temperature is falling at a rate of 3 degrees every 4 hours?
A) 3/4
B) 3/-4
C) -3/4
D) -3/-4
HELP PLZ HURRY, i really need help with this
Answer:
12
Step-by-step explanation:
5125558555455544444444
Can you please help me, i dont get it and my teacher wont answer my email to help me pt1
Answer:
I'd say, ask google for help
Step-by-step explanation:
Say, "Hey Google"
HeLp Me pLeAsE?
Paul uses the expression 4.2 times 12.3 times 14.6 to determine the cost of tiling the floor of a room that measures 12.3 feet by 14.6 feet; each square foot of tile costs $4.20. How many decimal places will be in Paul’s final answer?
one
three
five
eight
What is it i will give 10 points
Rick buys remote control cars to resell. He applies a markup of 10%.
Choose all of the expressions that can be used to represent the retail price of the cars where c represents the original cost of the car.
Group of answer choices
= c - 0.1c
= c + 0.1c
= 0.9c
= 1.1c
Answer:
A and C if I'm sure
Edit: Markup oops- B and D
Step-by-step explanation:
a and c Step-by-step explanation:
hope this helps
HELP. PLEASE. I need help qwq
Answer:
ok uwu the answer is convergant plate boundary
Step-by-step explanation:
What is the simplified value of the expression below?
12.4 x (-6.3)
Answer:
-78.12
12.4*(-6.3)
12.4 groups of -6.3
Use long multiplication
Let me know about any more questions
Happy to help...
Read the excerpts from Team Moon and the NASA article. And only now—a solid, panic-stricken, gut-wrenching, heart-palpitating ten minutes by clock but feeling like an eternity later—did it sink in for John Coursen, Tom Kelly, and a lot of the other Grumman folks who had poured years of their lives into building the lunar module: Their baby was on the moon. Let the cheering begin! When the lunar module lands at 4:18 p.m. EDT, only 30 seconds of fuel remain. Armstrong radios "Houston, Tranquility Base here. The Eagle has landed." Mission control erupts in celebration as the tension breaks, and a controller tells the crew "You got a bunch of guys about to turn blue, we're breathing again."
How are the perspectives presented in the excerpts similar?
They show the disappointment and fear mission control workers feel when the lunar module develops problems.
They show the huge investment of time and energy mission control workers dedicated to the lunar module.
They show how mission control workers view the lunar module as if it is the workers’ very own child.
They show the relief and excitement mission control workers feel when the lunar module lands on the moon.
Answer: D. They show the relief and excitement mission control workers feel when the lunar module lands on the moon.
Step-by-step explanation: I got it right on edge 2021
Help me with pre calc
Answer:
For the first one, R would be = -3/5
In the decimal form that would be -0.6
For the second one, K = 2/19
In the decimal form, it would be 0.10526315 …
Step-by-step explanation:
whats the answer to 24-2c+3=2c+3+c
Answer: c = [tex]\frac{24}{5}[/tex]
Step-by-step explanation:
Hey there!
Step 1: Cancel 33 on both sides.
24 - 2c = 2c + c
Step 2: Simplify 2c + c to 3c.
24 - 2c = 3c
Step 3: Add 2c to both sides.
24 = 3c + 2c
Step 4: Simplify 3c + 2c to 5c.
24 = 5c
Step 5: Divide both sides by 5
[tex]\frac{24}{5}[/tex] = c
Step 6: Switch Sides.
c = [tex]\frac{24}5}[/tex]
~I hope I helped you! :)~
Answer: c≓−2.135980077
How to solve it: Step by step solution :
STEP
1
:
2c + 5
Simplify ——————
c
Equation at the end of step
1
:
2 (2c+5)
(c-((—•(c2))•(2c-5)))-(((3•(c3))•——————)+2) = 0
6 c
STEP
2
:
Equation at the end of step
2
:
2 (2c+5)
(c-((—•(c2))•(2c-5)))-((3c3•——————)+2) = 0
6 c
STEP
3
:
Dividing exponential expressions
3.1 c3 divided by c1 = c(3 - 1) = c2
Equation at the end of step
3
:
2
(c-((—•(c2))•(2c-5)))-(3c2•(2c+5)+2) = 0
6
STEP
4
:
1
Simplify —
3
Equation at the end of step
4
:
1
(c - ((— • c2) • (2c - 5))) - (6c3 + 15c2 + 2) = 0
3
STEP
5
:
Equation at the end of step 5
c2
(c - (—— • (2c - 5))) - (6c3 + 15c2 + 2) = 0
3
STEP
6
:
Equation at the end of step 6
c2 • (2c - 5)
(c - —————————————) - (6c3 + 15c2 + 2) = 0
3
STEP
7
:
Rewriting the whole as an Equivalent Fraction
7.1 Subtracting a fraction from a whole
Rewrite the whole as a fraction using 3 as the denominator :
c c • 3
c = — = —————
1 3
Equivalent fraction : The fraction thus generated looks different but has the same value as the whole
Common denominator : The equivalent fraction and the other fraction involved in the calculation share the same denominator
Adding fractions that have a common denominator :
7.2 Adding up the two equivalent fractions
Add the two equivalent fractions which now have a common denominator
Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:
c • 3 - (c2 • (2c-5)) -2c3 + 5c2 + 3c
————————————————————— = ———————————————
3 3
Equation at the end of step
7
:
(-2c3 + 5c2 + 3c)
————————————————— - (6c3 + 15c2 + 2) = 0
3
STEP
8
:
Rewriting the whole as an Equivalent Fraction
8.1 Subtracting a whole from a fraction
Rewrite the whole as a fraction using 3 as the denominator :
6c3 + 15c2 + 2 (6c3 + 15c2 + 2) • 3
6c3 + 15c2 + 2 = —————————————— = ————————————————————
1 3
STEP
9
:
Pulling out like terms
9.1 Pull out like factors :
-2c3 + 5c2 + 3c = -c • (2c2 - 5c - 3)
Trying to factor by splitting the middle term
9.2 Factoring 2c2 - 5c - 3
The first term is, 2c2 its coefficient is 2 .
The middle term is, -5c its coefficient is -5 .
The last term, "the constant", is -3 Adding up the two equivalent fractions
-c • (c-3) • (2c+1) - ((6c3+15c2+2) • 3) -20c3 - 40c2 + 3c - 6
———————————————————————————————————————— = —————————————————————
3 3
STEP
10
:
Pulling out like terms
10.1 Pull out like factors :
-20c3 - 40c2 + 3c - 6 =
-1 • (20c3 + 40c2 - 3c + 6)
Checking for a perfect cube :
10.2 20c3 + 40c2 - 3c + 6 is not a perfect cube
Solving 2c2-5c-3 = 0 by the Quadratic Formula .
According to the Quadratic Formula, c , the solution for Ac2+Bc+C = 0 , where A, B and C are numbers, often called coefficients, is given by :
- B ± √ B2-4AC
c = ————————
2A
In our case, A = 2
B = -5
C = -3
Accordingly, B2 - 4AC =
25 - (-24) =
49
Applying the quadratic formula :
5 ± √ 49
c = —————
4
Can √ 49 be simplified ?
Yes! The prime factorization of 49 is
7•7
To be able to remove something from under the radical, there have to be 2 instances of it (because we are taking a square i.e. second root).
√ 49 = √ 7•7 =
± 7 • √ 1 =
± 7
So now we are looking at:
c = ( 5 ± 7) / 4
Two real solutions:
c =(5+√49)/4=(5+7)/4= 3.000
or:
c =(5-√49)/4=(5-7)/4= -0.500
One solution was found :
c ≓ -2.135980077
Place a checkmark in the columm below the correct direct variation equation, if possible
I'll break this into four parts, one for each table.
Part 1
To see if we have a direct variation, we divide each y value over its corresponding paired x value. So we compute y/x. If we get the same result for each column, then we have a direct variation.
Column 1 = y/x = 2/20 = 0.025
Column 2 = y/x = 4/30 = 0.1333 approximately
We don't get the same y/x value, so we don't have a direct variation.
===============================================
Part 2
Same idea as before
Column 1 = y/x = 30/2 = 15
Column 2 = y/x = 90/6 = 15
Column 3 = y/x = 105/7 = 15
Column 4 = y/x = 165/11 = 15
We get the same result each time, so the constant of proportionality is k = y/x = 15.
Therefore the direct variation equation is y = 15x.
All direct variation equations are in the form y = kx.
===============================================
Part 3
Column 1 = y/x = 54/3 = 18
Column 2 = y/x = 90/5 = 18
Column 3 = y/x = 126/7 = 18
Column 4 = y/x = 162/9 = 18
We get the equation y = 18x, which is a direct variation
===============================================
Part 4
Column 1 = y/x = 15/1 = 15
Column 1 = y/x = 30/4 = 15/2 = 7.5
We get different values, so table 4 is not a direct variation.
There is answers for the other two but can somebody help me with the question thank you
Answer:the vlt
Step-by-step explanation:
Rafael received a $10 gift card for his birthday. He downloaded 3 songs which each cost $0.99 and 1 app which costs $1.29
How much money is left on Rafael's gift card?
$7.72
$7.72
$7.52
$7.52
$5.94
$5.94
$5.74
Answer:
$5.74
Step-by-step explanation:
10-0.99-0.99-0.99-1.29=$5.74
Answer:
5.74
Step-by-step explanation:
I multiplied .99 x 3, and then took that answer and added it to 1.29, and subtracted 4.26 from 10. hope this helps!
help me if u can and ty
Answer:
-1.3
Step-by-step explanation:
To find the slope of a line it's, change in y ÷ change in x
i.e,(-7-6)÷{4-(-6)}= -13/10 = -1.3
Eight friends are going bowling together if they each rent a pair of bowling shoes for $2.00, they each play two
games for a total of 4100, and they each buy a soda for $1.50, write an expression for the total amount they all
spent
Answer: The answer is 668.00
Step-by-step explanation: Part one (8 x 2.00)= 16.00 x 41.00 = 656.00 ⇒ ( 8 people, 2.00 per shoes, 41.00 total 656.00)
Part two 1.50 x 8 = 12.00 ( 8 people and 8 sodas for 1,50)
Part three 656.00 + 12.00 = 668.00 ( total price because of the shoes, the two games, the soda and the number of people that had to pay.)
HOPEFULLY THIS HELPS!!!
The expression for the total amount is;
⇒ $16.00 + $32,800 + $12.00 = $32,828
What is an expression?
Expression in math is defined as the collection of the numbers, variables and functions by using signs like addition, subtraction, multiplication, and division.
Given that;
They each rent a pair of bowling shoes for $2.00.
They each play two games for a total of 4100.
They each buy a soda for $1.50.
Now,
Cost of shoes for eight friends = 8 x 2.00 = $16.00
And, Cost for playing two games = 8 x 4100 = $32,800
And, Cost of soda for eight friend = 8 x 1.50 = $12
Thus, Total cost = $16.00 + $32,800 + $12.00
= $32,828
So, The expression for the total amount is;
⇒ $16.00 + $32,800 + $12.00 = $32,828
Learn more about the mathematical expression visit:
https://brainly.com/question/1852123
#SPJ5
Mia has $132 in her bank account. She wants to buy a gucci bag, But, it costs 1,000 dollars. So, she sells her makeup, since she doesn't use it anymore. She sells her makeup for $15 each. At the end, she gets $1,323. How much money does it get her from $132 to $1.323? Show your work.
Plssssss help Me! I will follow u!!!!!!!!!!!!!!!
At least help a 5th grader out
Answer: 1191 .00
Step-by-step explanation: well try this
1323 -132 = 1191
Responder: el dinero que ella recibe por la venta de maquillaje es de 1.191 dólares
Step-by-step explanation:
132menos 1323 es 11911191 dividido en 15 es 79,4por lo cual vendio 79,4 maquillajes
Please answer soon!
For what ordered pair (a,b) are there infinite solutions (x,y) to the system.
Students in Ms. McMath’s class were asked to write a real-world problem that could be solved with the inequality 35 + 0.75x ≥ 0.5x + 55. Four of her students responded on the following pages. Analyze their responses to see if the scenario matches the inequality. If it does and you mark True, there is no need for an explanation. If you mark False, change the scenario so that it matches the inequality.
Answer:
What um wheres the response????
Step-by-step explanation:
Arlene is showing her work in simplifying −7.9 + 8.2 − 3.4 + 2.1. Identify any errors in her work or in her reasoning. Write feedback to Arlene explaining the mistake she made and how to correct her work.
Step Work Reasoning
−7.9 + 8.2 − 3.4 + 2.1 Original problem
1 −7.9 + 8.2 + (−3.4) + 2.1 Additive inverse
2 −7.9 + (−3.4) + 8.2 + 2.1 Associative property
3 (−7.9 + (−3.4)) + (8.2 + 2.1) Commutative property
4 −11.3 + 10.3 Simplify
5 −1 Simplify
She mixed up the commutative and associative properties
Line 3 should be commutative and line 4 should be associative.
Line 3 is commutative because she swapped -3.4 and 8.2
Line 4 is associative because of the parenthesis groupings.
Other than that I don't see any other errors.
could someone help me and explain how to do this!?
Answer: B
Step-by-step explanation:
the cost is $8, and it goes for 40% off, so the discount is 8*40%=3.2;
then the sale price = 8-3.2 = 4.8.
what is 20% of 85.00
Answer:
17
Step-by-step explanation:
Answer:
17
Step-by-step explanation:
20% × 85 =
(20 ÷ 100) × 85 =
(20 × 85) ÷ 100 =
1,700 ÷ 100 =
17
Rewrite 7 − 8 using the additive inverse and display the new expression on a number line. 7 + (−8) A horizontal number line is shown with labels from negative 8 to positive 8. A blue arrow begins at 0 and ends at 7. A red arrow begins at 7 and ends at negative 1. 7 + 8 A horizontal number line is shown with labels from 0 to 16. A blue arrow begins at 0 and ends at 7. Another blue arrow begins at 7 and ends at 15. 7 − (−8) A horizontal number line is shown with labels from 0 to 16. A blue arrow begins at 0 and ends at 7. Another blue arrow begins at 7 and ends at 15. 8 − 7 A horizontal number line is shown with labels from negative 8 to positive 8. A blue arrow begins at 0 and ends at 8. A red arrow begins at 8 and ends at 1.
Answer: Rewrite using additve inverse:. 7 +(-8)
The number line: ) A horizontal number line is shown with labels from negative 8 to positive 8
A red arrow begins at 7 and ends at negative 1
Explanation: Additive inverse means reverse the sign from positive to negative, or from negative to positive and add.
