Answer:
d = - 4Step-by-step explanation:
[tex]a_1=7\\a_2=3\\\\d=a_2-a_1=3-7=-4[/tex]HELP ASAP DUE TOMORROW!!!
On a family outing, Tyler bought 5 cups of hot cocoa (x)
and 4 pretzels (y) for $18.40. Some of his family members
would like a second serving, so he went back to the same
food stand and bought another 2 cups of hot cocoa (x) and
4 pretzels (y) for $11.20.
Answers:
x = 2.40
y = 1.60
This means 1 hot cocoa costs $2.40 and 1 pretzel costs $1.60
=======================================
Work Shown:
x = cost of 1 cup of hot cocoa
y = cost of 1 pretzel
5x = cost of 5 cocoas
4y = cost of 4 pretzels
5x+4y = cost of 5 cocoas+4 pretzels
5x+4y = 18.40
----------------
2x = cost of 2 cocoas
4y = cost of 4 pretzels
2x+4y = cost of 2 cocoas+4 pretzels
2x+4y = 11.20
----------------
The system of equations we have is
[tex]\begin{cases}5x+4y = 18.40\\2x+4y = 11.20\end{cases}[/tex]
Note how 4y shows up twice. This is handy to be able to get rid of the y terms completely.
How? By subtracting the equations straight down
The x terms subtract to 5x-2x = 3x
The y terms subtract to 4y-4y = 0y = 0 and they go away
The right hand sides subtract to 18.40 - 11.20 = 7.20
After those three separate subtractions, we have this new equation:
3x = 7.20
Divide both sides by 3 to isolate x
3x/3 = 7.20/3
x = 2.40
Each hot cocoa costs $2.40
Now use this x value to find y. You can pick any equation you want as long as it has x,y in it. I'll pick the first equation
5x+4y = 18.40
5(2.40)+4y = 18.40
12+4y = 18.40
4y = 18.40-12
4y = 6.40
y = 6.40/4
y = 1.60
Each pretzel costs $1.60
If we picked on the second equation, we should get the same y value
Let's find out
2x+4y = 11.20
2(2.40)+4y = 11.20
4.80+4y = 11.20
4y = 11.20-4.80
4y = 6.40
y = 6.40/4
y = 1.60
We get the same result as before.
To check the answers, you need to plug those values back into the two original equations and simplify. You should get the same thing on both sides.
Someone please help?
The first answer. because 2 to the 4th power is 16 and 2 to the 3 power is eight.
Select the correct answer
A square-shaped canvas painting was enlarged by adding a 4-centimeter wide decorative frame to the length and width of the canvas. If the area
of the framed painting is 625 square centimeters, what is the side length of the bare canvas?
A
17 centimeters
B.
19 centimeters
C
21 centimeters
D
25 centimeters
Answer:
21cm
Step-by-step explanation:
Area if the canvas = L²
If the length is increased by 4
A = L²
625 = L²
L = √625
L = 25cm
If the 4cm is added to the length of the canvas, the original length will be 25-4 = 21cm. hence the length of the bare canvas is 21cm
Answer:
Other guy is correct, please give him brainliest.
Perform the indicated operation.
4/11 ÷ 4/9
a. 1 2/9
b. 16/99
c. 9/11
please explain how to do it as well xc
12-3.89
please show work it’s for a test.
Answer:
8.11
Step-by-step explanation:
12-3=9
9-0.8= 8.2
8.2=8.20
8.20-9=8.11
Answer:
8.11
Step-by-step explanation:
12.00
- 3.89
--------------
8.11
If a = 4.75 and 4.75 = b, then a = b.
Answer: 22.5625
Step-by-step explanation: 4.75^2 squared is the same thing
AHHHH Help Answer if you know the all right answer
Answer:
3
The x-intercept of the graph is -4
Graph B
The last graphing question is kinda hard to read so. It should not be c or d. Look for the graph where the line passes through the y-axis starts 30.
Step-by-step explanation:
If ΔABC ≅ ΔDEF, what is the length of AB?
Answer:
AB=24ft
Step-by-step explanation:
3x+6=4x
6=4x-3x
6=x
AB=3x+6
AB=3(6)+6
AB=18 + 6
AB=24
what is the product of b(b^2 - 12b+1)
Answer:
depends on what B is,
Step-by-step explanation:
if you just want an equivalent equation. b^3-12b^2+b, but otherwise theres no way to answer without an inequality or equivalent equation without B
Solve for x.
-3(2x - 3) + x +4= -27
Can I have help on this bell ringer please?
Answer:
draw it again
Step-by-step explanation:
draw it as it is you can use a mirror to look through while you are drawing good luck
OBLOSA MC
A scatter plot with a line is shown below.
Which statement is most likely correct about the line? (5 points)
It can be the line of best fit because it is closest to most data points
It cannot be the line of best fit because it does not pass through the first and last points
It cannot be the line of best fit because it does not pass through the points
It can be the line of best fit because it passes through all the scatter points
Answer: It cannot be the line of best fit becuase it does not pass through all the points.
Mai and Priya were on scooters. Mai traveled 15 meters in 6 seconds. Priya travels 22 meters in 10 seconds. Who was moving faster?
Answer:
Priya
Step-by-step explanation:
We can use division
Mai: 15/6 = 2.5 meters per second
Priya: 22/10 = 2.2 meters per second
Since Priya is going 2.2 meters per second, she is going faster.
Ydia is having a party on Saturday. She decides to write a riddle on her invitations to describe her house number on Cypress Street. Use the clues below to find Lydia's address. My address is a 5−digit number. The tens digit is 6 less than 8. The thousands digit is twice the digit in the tens place. The hundreds digit is the greatest odd number that is less than 10. The ones digit is the product of 6 and 1. The ten thousands digit is the difference between the hundreds digit and the ones digit.
Answer:
Ydia's address is: 62943
Explanation
Represent the digit as ABCDE such that:
[tex]A = Ones[/tex]
[tex]B = Tens[/tex]
[tex]C = Hundred[/tex]
[tex]D = Thousand[/tex]
[tex]E = Ten\ Thousand[/tex]
Analyzing the statements one after the other:
The tens digit is 6 less than 8
[tex]B = 8 - 6[/tex]
[tex]B = 2[/tex]
The thousands digit is twice the digit in the tens place.
[tex]D = 2B[/tex]
[tex]D = 2 * 2[/tex]
[tex]D = 4[/tex]
The hundreds digit is the greatest odd number that is less than 10.
[tex]C = 9[/tex]
The ones digit is the product of 5 and 1.
[tex]A = 6 * 1[/tex]
[tex]A = 6[/tex]
The ten thousands digit is the difference between the hundreds digit and the ones digit.
[tex]E = C - A[/tex]
[tex]E = 9 - 6[/tex]
[tex]E = 3[/tex]
Ydia's address is: 62943
|x|+6=3
show HOW to solve plzzz
Answer:
3
Step-by-step explanation:
lxl+6=3
|x|=3-6
|x|=-2
the | | sign is the inequality sign which aignifies the +and - value
+x=-2 or -x=-2
hence x=2 or -2
HELPPPPPPP PLEASEEEEEE
Given the equation 5x – 2y = 22 and a solution (3a, 4). Find a.
Answer:
a = 2
Step-by-step explanation:
5(3a) - 2(4) = 22
15a - 8 = 22
15a = 30
a = 2
$3.75 for 5 apples: division pls
Answer: 0.75
Step-by-step explanation:
It is easier to divide if you get rid of the decimal, divide 375/5, and then add the decimal back.
how can you find the y-intercept in a table
Answer:the y-intercept will be when y=0. the answer will be the x value that corresponds with y=0.
Step-by-step explanation:
How many number of terms does 5p^2-2p+3r have?
Answer:
3 terms
Step-by-step explanation:
5[tex]p^{2}[/tex] - 2p + 3r
It has 3 terms
They are as follows:
5[tex]p^{2}[/tex]
-2p
and 3r
Hope this helps
plz mark as brainliest!!!!!
Select the vector along which a translation of the plane would map point A to its image T (A).
Answer:MN
Step-by-step explanation:
I just did it lol
The vector [tex]\vec {MN}[/tex] that would map point A to its image T (A).
What is a vector?A vector is a quantity that possesses magnitude, direction, and adheres to the law of vector addition.
Given:
Two vectors [tex]\vec {PQ}[/tex] and [tex]\vec {MN}[/tex].
To map point A to its image T (A):
The translated map would be,
[tex]\vec {MN}[/tex].
Therefore, [tex]\vec {MN}[/tex] is the vector.
To learn more about the vectors;
brainly.com/question/13188123
#SPJ2
The designers of a water park are creating a new slide and have sketched some preliminary
drawings. The length of the ladder is a = 24 feet, and its angle of elevation is 60° (see figure).
How many 0.75-pound packages can you make with 4.5 pounds of sunflower seeds ?
Answer:
6
Step-by-step explanation:
Divide 4.5 by 0.75 and you will get 6
Answer:
6
Step-by-step explanation:
6 because 4.5 divided by 0.75 equals 6.
On which number line are -3 and its opposite shown?
-10
-9
8
-7
-6
-5
4
3
O
1
2
3
4
5
6
7
8 9
10
-10-9-8-7 -6
-54
3
2.1
0
1
2
3
4
5
6
7
8 9
10
toto+
-10-9
-8-7
-6
-5-4
3
2
.1
0
1
2
3
4
5
6
7
8 9 10
- 10 9 8 7
3 2
-1
0
1
2
3
4
6
7
8
9 10
Answer:
it is on the farthest to the left of the screen
i wanna sleep
But i cant cause of this homework
Answer:
I KNOW SAMEEEEEEE IM SORRY XXX
Step-by-step explanation:
Six students are working to simplify the expression shown 4y+13x-5+6y-x
Answer:12x+10y-5
Step-by-step explanation:
Answer:
Step-by-step explanation:
Complete the following sentence with the correct symbol(s) or statement(s). Select all that apply. |1| ___ -1 not possible = ≤ ≠
Answer:
≠ (not equal)
Step-by-step explanation:
Out of the three choices provided, it has to be the not equal sign. We know this because the absolute value of 1 is how far away 1 is from 0, which is 1. Which then makes our equation: 1 ____ -1.
From here, it's easy to tell that -1 is smaller than 1, they're not equal, and it is possible. Since we have eliminated all other possible answers, we know it has to be ≠.
Naomi works in a music shop and earns $42 per day. She earns an extra $2 for each CD she sells. If Naomi wants to earn at least $80 per day, which inequality shows the minimum number of CDs, n, that she should sell?
42 + 2n ≤ 80, so n ≤ 19
42 + 2n ≥ 80, so n ≥ 19
42 + 2n ≥ 80, so n ≥ 36
42 + 2n ≤ 80, so n ≤ 36
Answer:
B. 42 + 2n ≥ 80, so n ≥ 19
Step-by-step explanation:
42 + 2n ≥ 80
Subtract 42 from both sides
2n ≥ 38
Divide both sides by 2
n ≥ 19
Hope I helped :)
Please consider Brainliest :)
Answer:
42 + 2n ≥ 80, so n ≥ 19
Step-by-step explanation:
If she wants to make at least $80 the she would need to sell a number of cedis in addition to her $42
That is:
Let n be the number of CDs
42 + 2n
and to get at least $80, (at least meaning $80 dollars or more)
So that will be:
42 + 2n ≥ 80
So to get at least 80 dollars, she'll have to sell 19 CDs
Why 19 CDs? 42 + 2n which is 42 + 2(19) = 80
Which is why 42 + 2n ≥ 80, so n ≥ 19
what is 8.2 x 4.6? weibciewrhcoc
Answer:
37.72
Step-by-step explanation:
Answer:
37.72
Step-by-step explanation:
Hehsisksksnsnsndjs
What is the value of X in the equation below if Y equals 12?
6X = Y
Answer:
2
Step-by-step explanation: