Answer:
Step-by-step explanation:
-3y+11=20
-3y=20-11
y=9/-3
y=-3
Answer:
y = -3
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtraction Property of EqualityStep-by-step explanation:
Step 1: Define
Identify
-3y + 11 = 20
Step 2: Solve for y
[Subtraction Property of Equality] Subtract 11 on both sides: -3y = 9[Division Property of Equality] Divide -3 on both sides: y = -3HELP:::: Find the volume
Answer:
94,080 cm^3
Step-by-step explanation:
V= L • W • H
V= 42 • 35 • 64
V= 94,080
Hope this helps, good luck!
Step-by-step explanation:
42x35= 1,470
1,470x64= 94,080cm³
Hope it helped!
What is the value of (7 – 3i)(6 + i)?
A. 42 – 141
B. 45 – 11i
OC. 45 – 25i
D. 42 - 28i
100 points giving brainly
Se va a colocar una escalera que mide 5 metros (m) de longitud sobre una pared. El fabricante de la escalera recomienda que, por seguridad, el ángulo que forme la escalera con el piso sea de 78°, ¿Cuál será la distancia sobre el piso del pie de la escalera a la pared?
Answer:
4.9 m
Step-by-step explanation:
Resolvemos la pregunta anterior usando la función trigonométrica de seno
sin θ = Opuesto / Hipotenusa
θ = 78 °
Hipotenusa = Longitud de la escalera = 5 m
Opuesto = Distancia sobre el suelo = x
sin 78 = x / 5m
Multiplicar cruzada
x = sin 78 × 5 m
x = 4.8907380037m
Aproximadamente
= 4.9 m
someone PLEASE HELP if you know what you're talking about!! i really need this!
The circumference is about ___ m.
Use 3.14 for π.
Answer:
The circumference is:
14.6 x 3.14 = 45.844 (m)
Step-by-step explanation:
help me plsssssssssssss
Answer:
do you still need help
Step-by-step explanation:
???
A number is multiplied by 4. That result is added to 12. The final number is 40.
What is the original number?
Answer:
n = 7
Step-by-step explanation:
Let the number be n. Then 4n + 12 = 40.
Solving this for n: 4n = 28, so that n must be 7.
n = 7
Answer: 28
Step-by-step explanation: 4x7=28. 28+12=40
ILL MARK BRAINLIEST 15 PTS!!! HURRY
If the function rule is to multiply by 4, and there is an output value of 8, what is the input value?
16
02
08
O 32
Answer:
02
Step-by-step explanation:
Answer:
Input Value = 02
Step-by-step explanation:
2 multiplied by 4 is 8.
You could also divide 8 by 4 to get 2 to check your work.
f is inversely proportional to √ g . When f = 8 , g = 25 Work out f when g = 16
f is inversely proportional to √ g . When f = 8 , g = 25 Work out f when g = 16
ANSWER :By question , f is inversely proportional to square root of g. In mathematical form ,
[tex]\implies f \propto \dfrac{1}{\sqrt g}[/tex]
Let k be constant . So that ,
[tex]\implies f =k \dfrac{1}{\sqrt g}[/tex]
When f = 8 , g is 25. So that ,
[tex]\implies 8= k\dfrac{1}{\sqrt {85}}[/tex]
[tex]\implies k = 8\sqrt{25} [/tex]
Hence the value of constant is 8√25.
So that when g is 16 ,
[tex]\implies f = 8\sqrt{25} \times 1/ \sqrt{16}\\\\\implies f = 8*5 / 4 \\\\\implies \boxed{ f = 10 } [/tex]
Hence the Value of f is 10 .
Biscuits are sold in in packs of 8. How many packs should you buy if you need 56 biscuits.
Answer:
7
Step-by-step explanation:
you just divide 8/56= 7
-----------------------------------------------------------------------------
Step 1:
Start by setting it up with the divisor 56 on the left side and the dividend 8 on the right side like this:
56⟌8
Step 2:
The divisor (56) goes into the first digit of the dividend (8), 0 time(s). Therefore, put 0 on top:
0
56⟌8
Step 3:
Multiply the divisor by the result in the previous step (56 x 0 = 0) and write that answer below the dividend.
0
56⟌8
0
Step 4:
Subtract the result in the previous step from the first digit of the dividend (8 - 0 = 8) and write the answer below.
0
56⟌8
-0
8
the answer to 8 divided by 56 calculated using Long Division is: 7
2.5kg of sultana brand costs $4.80 and 1.5 kg of Weetabix costs $2.95, show with working which is the best buy?
2.5kg of sultana brand cost 4.80$
price of 1 kg sultana brand = 0.520$ per kg
1.5 kg of weetabix costs $2.95
price of 1 kg weetabix brand = 0.509$
The best buy is weetabix !
The volume of a gas held at constant temperature varies inversely with the pressure of the gas. If the volume of the gas is 1200 cubic centimeters then the pressure is 200 millimeters of mercury, what is the volume when the pressure is 800 ml?
Answer:
300
Step-by-step explanation:
The volume of the gas varies inversely as the pressure
V= k/p
K= VP
= 1200×200
= 240,000
Therefore the volume when the pressure is 800
K= VP
240000= V×800
V= 240000/800
= 300
Hence the volume is 300 cubic centimeters
This equation shows how the cost of renting a moving van depends on how many hours it is rented for. c = 5h; The variable h represents the number of hours the moving van is rented for, and the variable c represents the cost in dollars. If a moving van is rented for 3 hours, what is the cost?
need help ^_^
Answer:
3/5 c
Step-by-step explanation:
_________________
If you flew 8000 miles in 20 hours what was your unit rate
Answer:
400 miles per hour
Step-by-step explanation:
8000 miles ÷ 20 = 400 Miles
20 hours ÷ 20 = 1 hour
Helpppppppppppppppppppp
Answer:
10 games for $25
Step-by-step explanation:
level up: y = 1.5x + 10
infinity arcade: y = 2x +5
x = # of games
1.5 (10) + 10 = 2 (10) + 5
15 + 10 = 20 + 5
25 = 25
a) Find the value of 2x + y when x = 4 and y = 3
b) Find the value of a^2 + b when a = -2 and b = 5
Help..? Pleaseee , it has to do with the Pythagorean Theorem. But I have no idea how to do it
Find area of the composite figure..
Answer:
627square inches
Step-by-step explanation:
Area of the composite figure.. = area of triangle + area of parallelogram
Since the triangle is an equilateral triangle;
Area of the triangle = r²sintheta
Area of the triangle = 18²sin60
Area of the triangle = 324sin60
Area of the triangle = 324(0.8860)
Area of the triangle = 280.584 square in
Area of the triangle = 281 square inches
Area of parallelogram = absintheta
Area of parallelogram = 20(20)sin60
Area of parallelogram = 400(0.8660)
Area of parallelogram = 346.4square inches
Area of parallelogram = 346 square inches
Area of the figure = 346 + 281
Area of the figure = 627square inches
a dime is dropped from a building at 1.024 ft . if the equation for height as a function of time is h(t)=-16t^2+ initial height where is t is time in seconds and h(t) is height in feet, how many seconds will it take for the dime to hit the ground?
Answer:
The dime hits the ground after 8 sec.
Step-by-step explanation:
Set h(t) = -16t^2 + h(0) equal to 0: -16t^2 + 1,024 ft = 0, or:
16t^2 = 1,024 ft, or:
t^2 = 64 ft^2
Then t = +8 sec
The dime hits the ground after 8 sec.
ASAP
-WILL MARK BRIANIST
its A, C, and E
Good Luck
Answer:
I got A and C
Step-by-step explanation:
The variable in answer choice A would be when it says "An elephant eats 5 tons of food every day". In C the the number of min is reverse multiplies by the number of tests.
please helppp!!
For the equation y = 3x – 6 Complete the table for the x values given.
Answer:
Step-by-step explanation:
y = 3x -6
x = -2, y = -12
x = -1, y = -9
x = 0, y = -6
x = 1, y = -3
x = 2, y = 0
x= 3, y = 3
x -2 -1 0 1 2 3
y -12 -9 -6 -3 0 3
PLEASE HELP DUE IN AN HOUR NO LINKS PLEASE.
Answer:
y = 3/2 when x = 15
Step-by-step explanation:
y = k / √1+x
2 = k / √1+8 = k/3
k = 6
y' = 6 / √1+15 = 6/4 = 3/2
25 POINTS!!!!!!
ANSWER THE QUESTION BELOW
Explain how decisions are a combination of theoretical, experimental, and subjective probability
Answer:
Decisions help know what you believe in and in what you trust. It also expirements many new things. Some decisions end up being good one and correct ones.
Adam wants to save as much money as he can in one month. He started with -$2 in his bank account at the beginning of the month and he put $3 each day into the savings account.
What are the areas of #6 and #8?
Please help me out
Answer:
Number 6 is 295 ft^2
Number 8 is 24 m^2
Answer:
[tex]unshadded \: region = {2}^{2} + {2}^{2} \\ = 4 + 4 \\ = 8 \\ totol \ \: region = 8 \times 4 = 32 \\ \\ area \: of \: shadded \: region = 32 - 8 = 24[/tex]
Write True or False. You can use the measures of the angles formed by two lines and a transversal to determine whether the two lines are parallel.
Answer:
I think that the answer is true (explanation might not be 100% accurate)
Step-by-step explanation:
Given that for 2 lines to be parallel, they have to never intersect at any point, meaning they both have to be straight and "facing" the same way. If either line has a tilt/angle of any sort, then they are not parallel.
What is a formula for the nth term of the given sequence? 300, 180, 108...
Answer:
Step-by-step explanation:
The common ratio of the terms is 0.6 (180/300=6/10;108/180=6/10). This is a geometric sequence .
nth term=500(0.6)^n-1
A teacher surveys all of the students in the school to find out each student's favorite class. The bar graph shows the results of his survey. How many more students prefer Math than prefer Science? Use the bar graph to answer the question.
Answer:
14
Step-by-step explanation:
16 students prefer maths and 2 students prefer science so
16-2=14
Samar gets Rs 150 as pocket money per month. On his 15th birthday, his father increased it by 20%. How much more money will he get every month now? A
Answer:
180
Step-by-step explanation:
150/100*20=30 +150=180
Jack tool out a 6-year loan for $25,000 to purchase a boat at a 4.5% interest rate. If the interest is compounded monthly, what will he have paid total over the course of the loan?
Answer:
A = $32,732.58
A = P + I where
P (principal) = $25,000.00
I (interest) = $7,732.58
Step-by-step explanation:
Given data
Time= 6 years
Principal= $25,000
Rate= 4.5%
First, convert R as a percent to r as a decimal
r = R/100
r = 4.5/100
r = 0.045 rate per year,
Then solve the equation for A
A = P(1 + r/n)^nt
A = 25,000.00(1 + 0.045/12)^(12)(6)
A = 25,000.00(1 + 0.00375)^(72)
A = $32,732.58
1/7h=3
What is the value of h in the equation?
[tex]\huge\text{Hey there!}[/tex]
[tex]\mathsf{\dfrac{1}{7}h= 3}[/tex]
[tex]\large\text{MULTIPLY 7 to BOTH SIDES}[/tex]
[tex]\mathsf{7\times\dfrac{1}{7}h = 7\times3}[/tex]
[tex]\rm{CANCEL: 7\times\dfrac{1}{7}\ because\ that\ gives\ you\ 1}[/tex]
[tex]\rm{KEEP: 7\times3\ because\ that\ gives\ you\ the\ h-value}[/tex]
[tex]\larg\text{TEMPORARY new EQUATION: }\mathsf{7\times3=\bf h}[/tex]
[tex]\mathsf{7\times3=h}[/tex]
[tex]\mathsf{7\times3=\bf 21}[/tex]
[tex]\boxed{\boxed{\large\text{Answer: \huge \bf h = 21}}}\huge\checkmark[/tex]
[tex]\large\text{Good luck on your assignment and enjoy your day!}[/tex]
~[tex]\frak{Amphitrite1040:)}[/tex]