Answer:
$23.85
Step-by-step explanation:
39.95 x 3 which can also be 39.95 + 39.95 + 39.95=119.85
So then do 143.70-119.85 to find the answer which is 23.85.
Answer:
$23.85
Step-by-step explanation:
Take $39.35 and multiply x3
(39.35 x 3) OR (39.35 + 39.35 + 39.35)
Then take $143.70 and subtract.
($143.70 - $119.85)
= $23.85
Put the following equation in Standard Form:
(1/2)x - 4 = (2/3)y
Answer:x=4/3y+8
Step-by-step explanation:
Step 1: Add 4 to both sides.
Step 2: Divide both sides by 1/2.
Answer:
3x-4y =24
Step-by-step explanation:
hope this helped xoxo
What is the solution to the inequality below?
√x>7
Answer:
x > 49
Step-by-step explanation:
We have the inequality Square root of x is greater than 7, to solve. We need to isolate x.
When having a square root, you need to raise the square root to its second power, with that, do the same to 7 on the other sides :
(Square root of x)^2 > 7^2
x > 49
what are the 2 reasons that the Louisiana purchase caused a debate in the usa
It was a debate between the northerners and southerners (forgive my spelling). The northerners feared the addition of more slave states and a corresponding lack of reprenestation of their intrests in the North. For the southern slave holders, new western lands would be a boon (helpful) to enslaved people and the Louisiana purchase threatened to entrench and expand their suffering to western territories.
I got this on Khan Academy
Write the dimensions of a rectangular prism or cube and find the surface area. Explain.
PLEASE HELP ASAP THANKS SO MUCH
A square pyramid is shown. What is the surface area of the pyramid? Enter your answer in the box.
Answer:
The surface area of the square pyramid is 34.63cm².
Step-by-step explanation:
[tex]A=a^{2} +2a\sqrt{\frac{a^{2} }{4} +h^{2} } =3^{2} +2[/tex]×3×[tex]\sqrt{\frac{3^{2} }{4} +4^{2} }[/tex]≈34.63cm^2
Please help me with this.
Answer:
D
Step-by-step explanation:
I'm sorry if its wrong
Answer:
D im pretty sure
Step-by-step explanation:
he charges 75 dollars plus 40$ a hour and x is hours and y is the total fee
if its not then swy
some one pleas help y=2x+3 y=-2x+15
Answer:
x = 3. y= 9
Step-by-step explanation:
2x +3 = -2x +15
4x = 12
x = 3
y 2(3) + 3 = 9
Solve the equation 3x +10=40.
x=
Answer:
x = 10
Step-by-step explanation:
3x + 10 = 40
which X in this case means 10. Hope this helps!
HELP WITH MATH THANKS SO MUCH
Answer:
120 units^2
Step-by-step explanation:
1/2bh
In this scenario rotate the triangle and you get 10 as the base and 24 as the height
1/2*10*24
12*10=120
Answer:
6,240 unit squared is the answer
Help Pleasee!!! I’ll make you the brainlyest!!!! Pleaseee
Answer:
theta = 210°
Step-by-step explanation:
To convert we radians to degrees all we have to do is multiply the radians by π/180:
radians * (180 / π) = degrees
((7π) / 6) * (180 / π) = 210°
Find the area of the trapezoid!
will give brainliest
Step-by-step explanation:
area=h(a+b)÷2
=2×1.1+3.4÷2
=4.5cm^2
Same-side interior angles in a parallelogram are congruent
Always True
Sometimes True
Never True
Find the value of the expression 100 – 10p3 when p = 0
Answer:
Step-by-step explanation:
despacito
Find the value of x.
(Round to the nearest tenth as needed.)
Answer:
x ≈ 12.8
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
BracketsParenthesisExponentsMultiplicationDivisionAdditionSubtractionLeft to RightEquality Properties
Multiplication Property of EqualityDivision Property of EqualityAddition Property of EqualitySubtraction Property of EqualityTrigonometry
[Right Triangles Only] SOHCAHTOA[Right Triangles Only] tanθ = opposite over adjacentStep-by-step explanation:
Step 1: Define
Angle θ = 58°
Opposite Leg = x
Adjacent Leg = 8
Step 2: Solve for x
Substitute in variables [tangent]: tan58° = x/8[Multiplication Property of Equality] Isolate x: 8tan58° = xRewrite: x = 8tan58°Evaluate: x = 12.8027Round: x ≈ 12.8solve by elimination
3x-y=14
5x+4y=12
Answer:
Step-by-step explanation:
8. Aimi decided to spend her money and save some in the ratio of 3:2. If her total money is RM
7,500, find the amount of money she saves.
A. RM 4,500
B. RM 3,000
C. RM 2,000
D. RM 1,500
Step-by-step explanation:
2/5×7500
2×1500
3000
RM=3000
Given f(x)=0.25(6)x, find f−1(x).
Answer:
f−1(x) = [tex]\frac{4x}{6}[/tex]
Step-by-step explanation:
f(x) = 0.25(6)x, find f−1(x).
f(x) = 0.25(6)x
f(x) = [tex]\frac{6}{4}[/tex]x = [tex]\frac{6x}{4}[/tex]
f(x) = y
y = [tex]\frac{6x}{4}[/tex]
Substitute y for an x & x for a y
x = [tex]\frac{6y}{4}[/tex]
Multiply both sides by 4
4( x ) = 4( [tex]\frac{6y}{4}[/tex] )
4x = 6y
Divide both sides by 6 to solve for y
[tex]\frac{4x}{6}[/tex] = y
y = [tex]\frac{4x}{6}[/tex]
so f−1(x) = [tex]\frac{4x}{6}[/tex]
Subtract : 13.257 from 25.8
Pls Someone Help
Answer:
12.543
Step-by-step explanation:
A manufacturer is planning to sell a new product at the price of 210 dollars per unit and estimates that if x thousand dollars is spent on development and y thousand dollars is spent on promotion, consumers will buy approximately 160y/(y+4)+170x/(x+7) units of the product.
If manufacturing costs for the product are 130 dollars per unit, how much should the manufacturer spend on development and how much on promotion to generate the largest possible profit?
Round your answer to the nearest dollar.
Development costs: $ ?
Promotion costs: $ ?
Answer:
Development costs: $2757
Promotion costs: $3155
Step-by-step explanation:
This might seem like a two-variable problem, but in actuality it's not - because the demand function is a sum of two components, each being independent and using only one variable, we can solve for the two separately.
Moreover, the price per unit and cost per unit is constant, so each product yields exactly $80 ($210 - $130).
Let's solve separately.
We need to maximize:
$80 * 160y/(y+4) - 1000y = $12800 * y/(y+4) - $1000*y
$80 * 170x/(x+7) - 1000x = $13600 * x/(x+7) - $1000*x
Let's go:
$12800 * y/(y+4) - $1000*y = $12800 * (1 - 4/(y+4)) - $1000y = $12800 - $51200/(y+4) - $1000*y
we analyze the derivative. $12800 is a constant, so we can skip it. Derivative of 1/(y+4) is -(y+4)^-2, derivative of $1000y is $1000.
deriv = $51200/(y+4)/(y+4) - $1000
We find the changepoints by analyzing $51200/(y+4)/(y+4) - $1000 = $0. We don't need to worry about y+4 = 0 because we cannot spend negative money on development/advertisement.
(y+4)^2 = $51.2
y+4 ~= 7.155417528 (or -y-4 = 7.1554... but it doesn't make sense because negative budget so we don't analyze).
y ~= 3.155417528
lastly, we should check that it's actually a maximum there - but it is, the original function goes to negative infinity.
rounding $1000y to the nearest dollar gives us $3155
Let's do the same for x:
$13600 * x/(x+7) - $1000*x = $13600 * (1 - 7/(x+7)) - $1000x = $13600 - $95200/(x+7) - $1000*x
deriv = $95200/(x+7)/(x+7) - $1000
$95200/(x+7)/(x+7) - $1000 = $0
(x+7)^2 = 95.2
(x+7) ~= 9.75704873412
x ~= 2.75704...
rounding $1000x to the nearest dollar yields $2757
What is the value of x in the equation 1.5(x + 4) -3 = 4.5(x-2)
Answer:
The answer to this equations would be 1.3 repeated i included a image with how to go about working the problem out
The diameter of a basketball rim is 18 inches. What is the circumference of the rim?
can someone please help
Answer:
x = 10
z = 116
Step-by-step explanation:
12x - 58 = 62
x = 10
360 - 128 = 232
232 / 2 = 116
Answer:
x = 10
z = 116
Step-by-step explanation:
Find the missing values: f(5) f(9)
Answer:
F(5)= 22
F(9)= 34
Step-by-step explanation:
F(x)=3x+7
F(5)= 3(5)+7
F(5)= 15+7
F(5)= 22
F(9)= 3(9)+7
F(9)= 27+7
F(9)= 34
(Take the=22/7)
curved surface area of cylinder with diameter 21cm and height 5cm.
Answer:
330cm²
Step-by-step explanation:
CSA of a cylinder = 2πrh
(r = d/2 = 21/2 = 10.5 cm)
Putting the values of 2πrh;
2 x 22/7 x 10.5 x 5
2 x 22 x 1.5 x 5 *(10.5/7 = 1.5)
330 cm²
A grasshopper covered a distance of 6 yards in 10 equal hops How many yards did the grasshopper travel on each hop?
Answer:
0.6 yards
Step-by-step explanation:
6 yards/10 hops = 0.6 yards per hop
Josephine was asked to make a one-fiftieth scale model of the new water tower for her town. She constructed the model that is shown below.
A water tower has a height of 2.25 feet and diameter of 1.25 feet.
Not drawn to scale
What is the height of the town’s new water tower in feet? Round to the nearest whole number.
22 feet
40 feet
63 feet
113 feet
Answer:
D
Step-by-step explanation:
2.25x50=112.5
112.5 rounds up to 113, which is D
Answer:
33.75?
Step-by-step explanation:
2.25*15
Solve these multi step equations. Show your work. Justify each of your steps. 3(x-8)=10x+18
Answer:
The answer is x= -6
Step-by-step explanation:
3(x-8)=10x+18
3x-24=10x+18
3x-24=10x+18
Both side +24
3x=18+24+10x
Both side -10 x
3x-10x=42
-7x= 42
Both side divided by 7
x= -6
craig likes to collect records. last year he had 10 records in his collection. now he has 15 records. what is the percent increase of his collection?
Answer:
His collection increased in a 20%.
Step-by-step explanation:
If 100% represents 10 records, what percentage would be for 12 records?
x = 12 100% / 10 = 120%
So, if we subtract 120% - 100%, it's gonna result in a difference of 20%, which means that 12 represents a 20% more, or his collection increased in a 20%.
Assessmen Tool
Alyssa received a $50 gift card and spent x dollars. Samantha received a $65 gift card and spent
three times as many dollars as Alyssa.
If Alyssa and Samantha now have the same amount of money on their gift cards, how much money
did Alyssa spend in dollars and cents?
F $13.00
G $3.75
H $15.00
0 $7.50
8. Two coins are flipped. What is the probability that both of the coins land heads up?
Answer:
1/4
Step-by-step explanation:
1/2 x 1/2
Step-by-step explanation:
The probability of getting heads on the toss of a coin is 0.5. If we consider all possible outcomes of the toss of two coins as shown, there is only one outcome of the four in which both coins have come up heads, so the probability of getting heads on both coins is 0.25.