Answer:
X = 14 kg
Y= 7 kg
Step-by-step explanation:
LET X and Y equal the amounts of brand X and Y
X = kg of brand X
Y = kg of brand Y
we know:
1) X + Y = 21 (kg)
2) 1X + 4Y = 2(X + Y) (This is the cost/kg * amounts for total cost)
Coefficients 1,4,2 are the cost/kg)
substitute eq. 1 (X+Y), = 21 into right side of equation 2
1X + 4Y = (21)*2
use elimination to solve 2 equations
X + Y = 21
X + 4Y = 42 (now subtract, note: I wrote the 1X as just X)
------------------
0 -3Y = -21 OR Y = 7 kg so X = (21-7) OR X = 14 kg
Tom made a vegetable pizza and a pepperoni pizza. he cut the vegetable pizza into 5 slices and the pepperoni pizza into 10 equal slices Tom's friends ate 2 slices of vegetable pizza and 4 slices of pepperoni pizza. Construct Arguments Tom says his friends ate the same amount of vegetable pizza as pepperoni pizza how could that be true?**
Answer:
That could be true because they are equivalent.
Step-by-step explanation:
They are equivalent because one slice of the vegtable pizza is equal to 2 little slices 1/5=2/10 , 2/5 = 4/10 , 3/5 = 6/10 , 4/5 = 8/10 5/5 = 10/10 . So you basicly cut each fifth into half
Helen received a 40% discount on older model apple watch and saved two hundred and thirty dollars. What was the final selling price of the watch?
Answer:
Final selling price: 575 dollars.
Step-by-step explanation:
Since we know that 40%=230 that means 20%=115.
With this information, I can multiply 115 by 5 to get the answer which is 575.
Hope this helped!
please help will mark brainliest
Answer:
-1/3
Step-by-step explanation:
CORRECT THE ERROR 1) 4a^(2)*3a^(5)=(4+ 3)a^(2+5)=7a^(7) // 2) x^(6)x*x^(3)=6^(4+3) //
3) 3^(4)*2^(3)=6^(4+3)
please tell how you corrected you DONT have to but i'd appreciate it
Answer:
3
Step-by-step explanation:
Abbigail brought 47 bags of candy for the party. Each bag contained 21 pieces of candy. If there are 500 people at the party, does she have enough to give everybody 2 pieces of candy?
Answer:
No
Step-by-step explanation:
because you multiply 21 times 47 =987 and there is 500 people if Abbigali wants to give ereyone 2 he has to have 1,000
Answer: no
Step-by-step explanation:
47 bgs tims 21 in each bag gives
47 x 21 = 987 candies in all
if there are 500 people then lets divide the number of candies by the number of people to see how much each person gets
so 987/500 = 1.97
so NO there would not be enough candies for each person to get 2
as you see each person will get 1.97
factor 6a + 18c using gcf
Answer:
6(a+3c)
Step-by-step explanation:
If you're using a device, why even bother solving it using gcf.
Rewrite 18 as 3*6
Factor out common term 6
6(a+3c)
Answer:
6(a+3c)
hope it's helpful ❤❤❤❤❤
THANK YOU.
the table shows the amount for seven months of the year. which is the median amount of rainfallnin the town from march to september
Answer:
no graph
Step-by-step explanation:
imma guess 30 tho
The median in statistics is discussed below.
What are algebraic expressions?In mathematics, an expression or mathematical expression is a finite combination of symbols that is well-formed according to rules that depend on the context.Mathematical symbols can designate numbers (constants), variables, operations, functions, brackets, punctuation, and grouping to help determine order of operations and other aspects of logical syntax.Given is the median value.
The median is the value in the middle of a data set, meaning that 50% of data points have a value smaller or equal to the median and 50% of data points have a value higher or equal to the median.Mathematically, we can write -[tex]$\mathrm{Med}(X) = \begin{cases} X[\frac{n+1}{2}] & \text{if n is odd} \\ \frac{X[\frac{n}{2}] + X[\frac{n}{2}+1]}{2} & \text{if n is even} \end{cases}[/tex]
Therefore, the median in statistics is discussed above.
To solve more questions on algebraic expressions, visit the link below-
brainly.com/question/1041084
#SPJ6
Based on the information shown in these triangles, what is the length of the side x?
A)1.5
B)7
С)9
D)15.75
I NEEDDD HELPPPP ASAAAPPPPPPPPPPPPPPPP
Answer:
m=0.5 b=1
Step-by-step explanation:
M is the increase in value by one square point via b.
B is the y axis beginning position.
I could be wrong, though.
Answer:
m=1/2 b=1
Step-by-step explanation:
y=mx+b
The y-intercept is b, and the slope is m.
Let's see, the slope is rise/run. the first coordinate is (0,1) and the second is (4,3). 2/4 would be 1/2, so the slope would be 1/2. S0, m is 1/2.
y-intercept is the starting point. We can easily see that the y-intercept is 1, because the first point was (0,1).
so the final equation: y=1/2x+1
A department store sells snow boots for d dollars. The department store has a 30% off sale. Write a simplified expression to determine the total amount someone will pay, before tax, for the snow boots.
Answer:
30%*D
Step-by-step explanation:
i know :)
Answer:
30%*D
Step-by-step explanation:
i know :)
What is the missing factor?
−16x+36=□(4x−9)
Answer:
-4
Step-by-step explanation:
Answer both please, Tysvm!
Answer:
5/7 and 6/24 or 1/4
Step-by-step explanation:
how far apart are the spider and the fly and how far is the bear from camp?
Number 1 and 2.
The change in kinetic energy (in Joules) as a horse accelerates from canter to gallop is found using the expression 12×350×(122−62)12×350×(122-62). Which is the change in kinetic energy?
Answer:
63504000000
Step-by-step explanation:
What is the solution to the following equation?
-6(2- 3x) + 2(-3x + 2) =-2x- 8
A. x = 14
B. x = 22
C. x = 0
D. x =-14
If the length of each side of the right triangle shown on the grid is measured in cm, find the area of the triangle.
WHOEVER ANSWERS FIRST GETS BRAILIEST!!
Earth has 24 time zones spread over its 360º circumference. Each time zone is 15º wide. Boston is close to longitude 71º W; Honolulu is close to longitude 158º W.
How many time zones apart are Boston and Honolulu?
A. They are 6 time zones apart because ≈ 6.
B. They are 5 time zones apart because ≈ 5.
C. They are 4 time zones apart because ≈ 4.
D. They are 2 time zones apart because ≈ 2.
Answer:
c
Step-by-step explanation:
Answer:
The correct answer is c✔✔✔
Step-by-step explanation:
Hope that helps
Please help! Geometry:
Answer:
x=29
Step-by-step explanation:
the line in the middle of the triangle is at a right angle, so each side of it must equal 90 degrees, so then 90=3x+3, 90-3=3x then you simply, 87=3x which equals x=29.
Find the total surface area in square units of the figure below by creating a net.
4 in.
9 in.
7 in.
12 in.
3 in.
Which relationships describe angles 1 and 2?
Select each correct answer.
adjacent angles
complementary angles
supplementary angles
vertical angles
Please help with geometry!
Answers:
For problem 3, the solution is x = 105For problem 4, the solution is x = 75==========================================================
Explanation for problem 3
For any convex polygon, the sum of the interior angles is equal to 180(n-2), where n is the number of sides.
In this case, we have a hexagon with 6 sides, so n = 6
The interior angles for the hexagon add to 180(n-2) = 180(6-2) = 720
We'll add the given angles and set that sum equal to 720, then solve for x.
135+110+125+120+125+x = 720
615+x = 720
x = 720-615
x = 105
-------------------------------------
Explanation for problem 4
We'll use the same formula and idea as the previous problem.
This time we have n = 4 sides. This is a quadrilateral.
The interior angles add to 180(n-2) = 180*(4-2) = 360 degrees
So,
x+90+80+115 = 360
x+285 = 360
x = 360-285
x = 75
Note: the square angle marker represents 90 degrees
Explain how you would find the answer of -(5x5x5) full answer gets brainly
Answer:
−5x^10
Step-by-step explanation:
-(5x5x5)
−5x^5x^5
add the exponets and you should get
−5x^10
Answer: first you have to see if it starts with expoint and the you do to multiply and then you look inside the () and then you multiply
Step-by-step explanation: easier way use the calculator;)
Please give me the brainliest.
Solve the top points and crosses.
Solve the bottom points.
Solve the remaining points (on the sides)
Complete the top and bottom crosses.
Complete the remaining crosses (on the sides)
Associate wings with their appropriate edge pieces.
Solve the 5x5x5
Ryan is shopping for barrels of concrete. After looking at different stores, he decides to purchase them from Construction and Us. The cost of their concrete barrels is listed in the table below:
pls help fast!!!!!!!!!!!!!!!!!
Answer:
23$ for one bag
Step-by-step explanation:
46/2=23
Answer:23 for the first barrel
Step-by-step explanation:
PLLLLLLL ZZZZ HELP (MATH) (: ILL MAKE U BRAINLIST IF THE ANSWER IS RIGHT! :)
18 24 and 30
Please mark as brainliest.
Help me please! This is due at 12!
Answer:
Go with B
Step-by-step explanation: I think you have to half the first number where it is located to find the solution. Im not sure bc of this rushed time i cant think about it
The area of a rectangle is 140 square units. The base of the rectangle is 20 units. Which equation can be used to find the height, h, of the rectangle? (A=bh)
Answer: 20h=140 !!!
Step-by-step explanation: I remember doing this
HELPPPP (reposting since pic was blurry)
Answer:
a cant see the thingy it says its a pdf and a aint downloading tha
A water well drilling rig has dug to a height of -60 feet after one full day of continuous use.
Assuming the rig drilled at a constant rate, what was the height of the drill after 15 hours?
Answer:
-3.75 feetStep-by-step explanation:
If the water well drilling rig dug to a depth of -60 feet after one full day of continuous use, we can assume that the rig drilled at a constant rate throughout the day.
To determine the height of the drill after 15 hours, we need to calculate the average rate of drilling per hour.
PLEASE MARK AS BRAINLIEST
The rate of drilling can be calculated by dividing the total depth (-60 feet) by the total time (24 hours):
Rate of drilling = Total depth / Total time
= -60 feet / 24 hours
= -2.5 feet per hour
Now we can calculate the height of the drill after 15 hours using the rate of drilling:
Height of the drill after 15 hours = Rate of drilling × Time
= -2.5 feet per hour × 15 hours
= -37.5 feet
Therefore, the height of the drill after 15 hours is -37.5 feet.
Ihmani is going to the state fair. Each ticket for carnival games is $0.50, but she has to pay a $10 admission fee. Plot this scenario on the graph below. Does it show a proportional relationship? Why or why not?
Answer:
the answer is yes it does show a proportional relationship.
Step-by-step explanation:
Lets put it in a table:
T C
1 .5
2 1
3 1.5
4 2
5 2.5
if we were to keep going to 20 tickets, then we would reach $10. Each tickets price will increase by 50¢.
(Hope this helps!)
me need help whit this
Answer:
it's is your answer to this question 1000 ÷ 74 = 74000