Answer:
B
Step-by-step explanation:
solve each system by elimination.
3x-4y=-2
3y-2x=1
Answer:
y = -1, x = -2
Step-by-step explanation:
First, multiply the top equation by 2 to make 3x become 6x:
6x - 8y = -4
Second, multiply the bottom equation by 3 to make -2x become -6x:
9y - 6x = 3
Add the two equations together, and you get:
y = -1
Plug in y as -1 into the first or second equation:
3x - 4(-1) = -2
OR
3(-1) - 2x = 1
x = -2
Solve the formula for c
cd + z = m - cb
There are 420 students at Virginia Middle School. The ratio of girls to boys is 4 to 3. HELPPPPPPPP
Answer:
60 more girls are there than boys at Virginia Middle School.What is 8 1/3 as a fraction greater than 1
Answer:
11/8
Step-by-step explanation:
thats just the answer
PLEASE HELP ME.............
Answer:
[tex]g(x)=3x^2[/tex]
Which of the following circles has an area greater than 400 square meters and less than 600 square meters? Use 3.14 for π. Select all that apply.
A.Radius: 8 meters
B.Radius: 12 meters
C.Radius: 14 meters
D.Diameter: 12 meters
E.Diameter: 22 meters
F.Diameter: 26 meters
Answer:d
Step-by-step explanation:fkjfkjfkjfkjfkjf
Plz help me !!!! I’m not sure if it’s 20 !
Answer:
D) 20º
Step-by-step explanation:
if one angle is 70º, and the other is 90º, that means that the first two angles equal 160º. since all three interior angles of a triangle have to add up to 180º, the third angle must be 20º.
Slove for the value of x to the nearest whole number?
Answer:
Hello good afternoon
Step-by-step explanation:
you have to put this link
A triangle has side lengths of 19 feet, 16 feet, and 18 feet. What kind of triangle is it?
Answer:
obtuse triangle
Step-by-step explanation:
Sadie baked her award-winning blueberry pie. After she sampled a small piece, 7/8 of the pie remained. Her family ate an additional 3/4 of the pie after dinner. What fraction of the pie is left?
Answer:
The answer is 1/8
Step-by-step explanation:
7/8 - 3/4 = 0.125
0.125 converted to a fraction is 1/8
Which expression is equivalent to the expression 6h + 2?
(2 + 4h) + 2
(2 + 4h) + h
(1 + 5h) + 2
(2 + 5h) + h
Answer:
D
Step-by-step explanation:
a student wants to measure the height of a tree. from a point on the ground 10 feet away from the base of the tree, the angle of elevation to the top of the tree is 65angle. what is the height of the tree to the nearest tenth of a foot?
Answer:
Step-by-step explanation:
Use SOH CAH TOA to recall how the trig functions fit on a triangle
SOH: Sin(Ф)= Opp / Hyp
CAH: Cos(Ф)= Adj / Hyp
TOA: Tan(Ф) = Opp / Adj
Tan(65) = Opp / 10
10* Tan(65) = Opp
21.445 = Opp
so the height of the tree is approx 21.4 feet ( to the nearest 10th )
Is the triangle below a right triangle? if no, What type of triangle is it?
a
Yes, it is a right triangle
b
No, it is not right, it is acute
c
No it is not right it is obtuse
Answer:
I think it's A I hope this help you
A perfume manufacturer puts 16 fluid ounces in each bottle. How many gallons will fill 96 bottles?
Answer:
12,228 ounces
Step-by-step explanation:
There are 128 ounces in a gallon. So multiply 128 ounces by the number of gallons.
128 x 96 = 12,228
96 bottles of perfume will fill 12 gallons.
Given that a perfume manufacturer puts 16 fluid ounces in each bottle.
We need to find how many gallons will fill 96 bottles,
To find the total number of gallons required to fill 96 bottles, we need to calculate the total volume in fluid ounces and then convert it to gallons.
Given that each bottle contains 16 fluid ounces, the total volume in fluid ounces for 96 bottles can be calculated as:
Total fluid ounces = 16 fluid ounces/bottle x 96 bottles
Total fluid ounces = 1,536 fluid ounces
To convert the total volume from fluid ounces to gallons, we use the conversion factor:
1 gallon = 128 fluid ounces
Therefore, the total volume in gallons is:
Total gallons = Total fluid ounces / 128 fluid ounces/gallon
Total gallons = 1,536 fluid ounces / 128 fluid ounces/gallon
Total gallons = 12 gallons
So, 96 bottles will fill 12 gallons.
Learn more about Unit Conversion click;
https://brainly.com/question/28600662
#SPJ4
Help please is for now
Answer:
x intercept (-3,0)
y intercepy (0,-6/5)
Step-by-step explanation:
uh i used a calculator but please lmk if this is correct
find the area of the figure below, composed of a rectangle with two semicircles removed. Round to the nearest tenths place.
Answer:
Area of figure = 11.43 unit² (Approx.)
Step-by-step explanation:
Given:
Length = 6 unit
Width = 4 unit
Radius = 4/2 = 2 unit
Find:
Area of figure
Computation:
Area of figure = Area of rectangle - 2[Area of hemisphere]
Area of figure = [l x b] - 2[(πr²)/2]
Area of figure = [6 x 4] - 2[(3.14 x 2²)/2]
Area of figure = 24 - 12.57
Area of figure = 11.43 unit² (Approx.)
A) Jerry wants to open a bank account with his money. He will deposit $60.75
per month. If m represents the number of months, write an algebraic expression to
represent the total amount of money he will deposit
Answer:
$60.75×m
Step-by-step explanation:
'5'5"5"5""55
Use the number line to answer the questions that follow
Answer:
A. make a point on the line to the right 2 units from 0
B. the opposite of 2 isn't located at the same place as point P on the number line because the opposite of 2 is -2 and the point P is the opposite of negative 2 which would be positive 2. So the two points are not in the same place because they have different signs.
Step-by-step explanation:
hope this helps
I know the wording is a bit complicated lol <3
La media es única ? Cierto o falso
Answer:
cierto
Step-by-step explanation:
porque son diferentes cosas?
Which two prisms have the same height
Answer:
The height of prism A is 4, the height of prism B is 5, the height of prism C is 4, and the height or prism D is 2. Since 4=4, prisms A and C have the same height.
Hope this helped! If it did, please give me brainliest! It would help a lot! Thanks! :D
the numbers 12 to 15 refer to the box and whisker plot shown below which represents a math class with 20 students
Answer:
12. 110 minutes
13. 75%
14. 75%
15. 15 students
Step-by-step explanation:
Please see the attached pictures for the full solution.
Please helpppp!!!
Find the value of x.
Answer:
6.18
Step-by-step explanation:
180=75-17x
17x=180-75
17x=105
x=6.18
hope it helps
A radioactive isotope is decaying at a rate of 15% every hour. Currently there are 150 grams of the substance. Write an equation that will represent the number of grams present after n hours. How much will be left one day from now?A radioactive isotope is decaying at a rate of 15% every hour. Currently there are 150 grams of the substance. Write an equation that will represent the number of grams present after n hours. How much will be left one day from now?
Answer:
The equation that will represent the number of grams present after n hours is [tex]A(n) = 150(0.85)^n[/tex]
3.035 grams will be left one day from now.
Step-by-step explanation:
Exponential equation for the amount of a substance:
The exponential equation for the amount of a substance is given by:
[tex]A(t) = A(0)(1-r)^t[/tex]
In which A(0) is the initial amount and r is the decay rate, as a decimal, and t is the time period.
A radioactive isotope is decaying at a rate of 15% every hour.
This means that [tex]r = 0.15[/tex]
Currently there are 150 grams of the substance.
This means that [tex]A(0) = 150[/tex]
Write an equation that will represent the number of grams present after n hours.
[tex]A(n) = A(0)(1-r)^n[/tex]
[tex]A(n) = 150(1-0.15)^n[/tex]
[tex]A(n) = 150(0.85)^n[/tex]
How much will be left one day from now?
One day is 24 hours, so this is A(24).
[tex]A(24) = 150(0.85)^{24} = 3.035[/tex]
3.035 grams will be left one day from now.
en la pastelería de Luisa le regalan a una casa hogar 18 galletas dé cada 60 que se hornean a la semana si la semana pasada hornearon 720 galletas Cuántas regalaron
Answer:
La pastelería de Luisa regaló 216 galletas a la casa hogar.
Step-by-step explanation:
De acuerdo con el enunciado, la pastelería de Luisa regalan 18 galletas a una casa hogar por cada 60 galletas horneadas en una semana. El total de galletas regaladas por hornear 720 galletas se determina por la siguiente Regla de Tres Simple:
[tex]x = \frac{18}{60}\times 720[/tex]
[tex]x = 216[/tex]
La pastelería de Luisa regaló 216 galletas a la casa hogar.
Hey guys welcome to my pronounce word to makee u better so if u wanna say d.ick u have to use a L for i but a lowercase L and it loos like DlCK
Answer:
lol
Step-by-step explanation:
Answer:
uhhhh ok
thanks i guess
( u can say ars instead of u know)
Connor’s temperature was 0.7 degrees higher last night than it was this morning. His temperature this morning was 101.2 degrees. What was his temperature last night?
Answer:
101.9 degrees
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightStep-by-step explanation:
Let's define what we have:
Conner's morning temperature: 101.2 degrees
Conner's last night temperature: morning temperature + 0.7 degrees
We know that Conner's last night temperature is addition because it was higher (key word) than the morning temperature.
Therefore, we simply add the values together to get our answer:
101.2 + 0.7 = 101.9 degrees
If an exterior angle measure of a regular polygon is 60°, how many sides does the polygon have? What is the measure of each interior angle?
9514 1404 393
Answer:
6 sides120°Step-by-step explanation:
The sum of the measures of the exterior angles of a convex polygon is always 360°. If each is 60°, there are 360°/60° = 6 of them.
There are 6 sides.
The adjacent interior angle is the supplement of the exterior angle, so is ...
180° -60° = 120°.
Each interior angle measures 120°.
Which of the following numbers is the least?
Question 3 options:
7.1×109
7×109
7×108
7.1×108
Answer:
7×108
Step-by-step explanation:
7×108=756 which is the least number
Kobe drove 240 miles in 6 hours. To find the unit rate, you should determine how many miles Kobe drove
in hour(s).
Answer:
40 miles per hour
Step-by-step explanation:
Answer:
40 mph
Step-by-step explanation:
240 / 6 = 40
13,14,15- please helppp
Answer:
Must understand distance and slope formula first:
slope y_2-y_1/x_2-x_1
distance d=√((x_2-x_1)²+(y_2-y_1)²)
(Just search up the formulas if this isn't clear)
Step-by-step explanation:
For #13 take two points and put them in the distance formula remember (#,#) the first # is 'x' the second # is the 'y' in a point.
then you could simply type all that in a calculator and a single number should pop up indicating one of the lines (doesn't matter the #) then do the same for the second points (cuz you used two already you have two left) If the number is same as the first two points it's a pallelagram. (I tested it out got 7.07...)
For the slope you're doing something similar to the distance formula, you're filling out two sets of points into the slope formula if they come out the same # it's parallel.