Answer:
{x,y} = {67/16,-15/4}
Step-by-step explanation:
// Solve equation [2] for the variable y
[2] 2y = -8x + 26
[2] y = -4x + 13
// Plug this in for variable y in equation [1]
[1] 4x + 5•(-4x+13) = -2
[1] -16x = -67
// Solve equation [1] for the variable x
[1] 16x = 67
[1] x = 67/16
// By now we know this much :
x = 67/16
y = -4x+13
// Use the x value to solve for y
y = -4(67/16)+13 = -15/4
QUICKK
Solve systems by substitution Find the solution
SHOW ALL WORK
x = y - 2
4x + y = 2
( , )
PLZ HELP WILL DO ANYTHING
Answer:
Help me with my Physics lol
A company makes cylindrical crackers that have a cylindrical hole in the middle.
The diameter of the entire cracker is 16 mm the diameter of the hole is 8 mm, and the cracker is 18 mm long.
What is the volume of the material used in each cracker?
Round to the nearest cubic millimeter.
Answer:
2714 mm3
Step-by-step explanation:
Volume of the material used in each cylindrical cracker is 2714 cubic mm.
Volume of a cylinder: Volume of a cylinder is given by the expression,
Volume = πr²h
Given in the question,
Cylindrical cracker have a cylindrical hole in middle. Diameter of entire cracker = 16 mm Diameter of the cylindrical hole = 8 mm Length of the cracker = 18 mmMaterial used in cracker = Volume of the whole cracker - Volume of the cylindrical hole
= [tex]\pi (\frac{16}{2} )^2(18)-\pi (\frac{8}{2} )^2(18)[/tex]
= 1152π - 288π
= 864π
= 2714.34
≈ 2714 cubic mm.
Therefore, volume of the material used in each cracker will be 2714 mm³.
Learn more about the volume of a cylinder here,
https://brainly.com/question/15891031?referrer=searchResults
The formula for the perimeter of a rectangle is P = 2(l + w). Which equation is NOT equivalent to the formula?
Step-by-step explanation:
Which equation is NOT equivalent to the formula?
Answer: p-w=2l
Step-by-step explanation:
what is the relationship between the number of sides in a polygon and the sum of the measures of the interior angles ?
plz help Events A and B are independent. Let event A be the event that a person chooses and buys a certain pear from the grocery store. Let event
B be the event that a person chooses and buys a certain book from the book store.
Which statements explain why events A and B are independent? Choose all that apply.
O A Choosing a certain book affects the choice of a pear.
B. Choosing a certain pear affects the choice of a book.
C. Choosing a certain book does not affect the choice of a pear,
D. Choosing a certain pear does not affect the choice of a book.
Hi all
Answer:
I had this question on my MAP testing just today, and I answered with
C. Choosing a certain book does not affect the choice of a pear,
D. Choosing a certain pear does not affect the choice of a book.
These are the answers I think are correct.
sup my guys.
simplify.
12/232 x 24/127 =
Answer:
36/3683
Step-by-step explanation:
A bicycle wheel has outer diameter 32cm. How far will the cyclist travel if the wheel rotates 100π times? Give your answer in kilometres and correct to two decimal places.
Answer:
[tex]T=0.3142km \\T=0.31km\ to\ 2dp[/tex]
Step-by-step explanation:
Diameter [tex]d=32cm=0.32m[/tex]
Number of rotations [tex]N=100\pi[/tex]
Generally the circumference of the wheel is mathematically given as
[tex]C=2\pi r[/tex]
[tex]C=2\pi (0.32)^2/4[/tex]
[tex]C=1.005309649m[/tex]
[tex]C=1.0m[/tex]
Generally the total distance traveled T is mathematically given as
[tex]T=N*C[/tex]
[tex]T=100\pi *1m[/tex]
[tex]T=314.1592654m \approx 314.16m[/tex]
Total distance traveled T in Kilometres
[tex]T=314.1592654m[/tex]
[tex]T=\frac{314.1592654m}{1000}[/tex]
[tex]T=0.3142km \\T=0.31km\ to\ 2dp[/tex]
Please help!! 15 Points!!!!
Answer:
I think it is ether A are B
Answer: 1 solution
Step-by-step explanation: 3(
7
3
x+
4
3
)−2x+8=5x+12
all numbers are are solutions
18a − 17a = 13 I Will give You Brainly. (:
Answer:
18a−17a =13
18a-17a=13
18a−17a=13
Solve
Combine like terms
18−17=13
1=13
Multiply by 1
Solution
=13
Answer:
a=13Step-by-step explanation:18a-17a=13a=13I think it helps you
Solve using order of operations: 7 + 4 x2
Answer:
15
if you are happy with my answer, please give brainliest :)
Step-by-step explanation:
You do 4 times 2 first
so
7+8 equals 15
Answer:
Step-by-step explanation:
=7+8
=15
Hope it helped you.
Plz mark me brainliest.
15 divided by 2 equals what
Answer:
7.5
Step-by-step explanation:
HEELLPPPPPPPPPPPP.. I NEED THE ANSWER
Someone! I need help.
Answer:
With?
Step-by-step explanation:
What's the simplest from for the ratios:
8:20. Ill mark brainless!
32:28
12:15:24
45:60135
80:112:176
Answer:
12:15= 4.5
32:28 = 8:7
45:60135=3:4
Step-by-step explanation:
The rest are confusing
Answer:
Step-by-step explanation:
8:20 = 2:5
32:28 = 8:7
12:15:24 = 4:5:8
45:60:35 = 9/12/7
80:112:176 = 5:7:11
Tout teacher las disableu nislali malking Tour airs will apped alle ule uue date
In a class of 34 students, 19 of them are girls.
What percentage of the class are girls?
Give your answer to 1 decimal place.
9514 1404 393
Answer:
55.9%
Step-by-step explanation:
The percentage is found by multiplying the fraction by 100%.
19/34 × 100% ≈ 55.9%
About 55.9% of the class are girls.
Im to dum for this, can big brain person do this PLZ
Answer:
its ur ma and also wheres the picture nobrainer;-;
Step-by-step explanation:
Answer: yeah i see cuz theres nothing
Step-by-step explanation:
Xander writes math textbooks that sell x dollars each. he received a bonus of $25,000 for signing a contract, and he receives 8% commission on each book sale. express the total amount of income xander earns from selling y books algebraically
The total amount of income Xander earns from selling y books algebraically is C = 25000 + xy + 0.08y.
What is an equation?An equation is the statement that illustrates the variables given. In this case, two or more components are taken into consideration to describe the scenarios.
In this situation, Xander writes math textbooks that sell x dollars each, he received a bonus of $25,000 for signing a contract, and he receives 8% commission on each book sale.
c = total amount
y = number of books.
The total amount of income will be:
= 25000 + (x × y) + (8% × y)
= 25000 + xy + (0.08 × y)
C = 25000 + xy + 0.08y
Learn more about equations on:
brainly.com/question/2972832
#SPJ1
If eight balls can be purchased for $48, what is the unit rate? *
$48/8 balls
$1/6 balls
$6/1 ball
2 balls/$12
Answer:
-_____-....... *snort laugh*
THATS WHAT SHE SAID!!!! XD XD XD
Step-by-step explanation:
Are 7/28 and 18/36 equivalent
Answer: No they are not
Step-by-step explanation:
Answer:
No
Step-by-step explanation:
The entry ticket to a local football game costs $10 for an adult and $5 for a child. A group of 100 people paid an entry fee of $710. How many adults and how many children were there in this group?
Answer: Adults = 58
Children = 42
Step-by-step explanation:
Let adults be denoted as a
Let Children be denoted as c
a + c = 100 ...... i
10a + 5c = 710 ...... ii
Multiply I by 5
Multiply ii by 1
5a + 5c = 500 ...... iii
10a + 5c = 710 ...... iv
Subtract iii from iv
5a = 210
a = 210/5
a = 42
Since a + c = 100
c = 100 - 42 = 58.
Adults = 58
Children = 42
Yesterday I ran 9.6 miles at an average speed of 0.4 miles per 5 minutes. How long did it take me to run the 9.6 miles?
Answer:
2 hours
Step-by-step explanation:
9.6/(60/5 x 0.4) = 2 hours
/ = divide
x = multiply
write a polynomial function with the given zeros
x = -2, -2, 3
Answer:
(x+2)(x+2)(x-3)
Step-by-step explanation:
hope this helps
Can someone put this in order for me? Because I'm so confused.
Answer:
Step-by-step explanation:
[tex]24a-3(2a-5)=51[/tex]
Step 1: Let's solve first so we can order it later.
[tex]24a-6a+15=51\\18a+15=51\\-15 -15\\\18a=36\\\\[/tex]
Divide 18 both sides.
[tex]a=2[/tex]
Ok so we have everything solved answer: a=2.
Now we need to order.
Step 1. Distribute 3.
Step 2. Combine like terms 24a and 6a.
Step 3. Subtract 15 from both sides.
Step 4. Divide both sides by 18.
Hope this helps :)
Which of these r-values represents the strongest correlation? O A. -0.7 Caty B. -0.6 O C. -0.4 O D. -0.5
Answer:
-0.4
Step-by-step explanation:
its that one
The strongest correlation is -0.4.
Option C is correct.
What is correlation?Correlation is a statistical term that expresses how closely two variables are related linearly (meaning they change together at a constant rate). It's a typical tool for describing simple relationships without stating a cause and effect link.
When the result is closer to +1 (positive correlation) or -1 (negative correlation), the strongest correlation is considered (negative correlation).
A positive correlation coefficient means that the value of one variable is directly related to the value of another.
Here -0.4 is the closest value to 1.
So, the strongest correlation is -0.4.
Learn more about Correlation here:
https://brainly.com/question/28898177
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someone please help me. please
5x+20 + 9x-92 = 180
x = 18
5(18)+20
<A = 110
What is the other endpoint of the segment with midpoint 23 and endpoint 27
Answer:
19
Step-by-step explanation:
Difference between one end point and mid point
= 27 - 23 = 4
Other endpoint = 23 - 4 = 19
What would you do to solve the equation below x/2=15
Answer: x=30
Step-by-step explanation:
Multiply both sides of the equation by 2 to cancel out the divide by 2.
x=15×2=30
Answer:
x=30
Step-by-step explanation:
2*x/2=15*2
x=30
please help me with this
Answer:
5 squared, 2 and half, 7 squared, 11 squared, pie
Step-by-step explanation:
2. How far does a lorry move if it's travelling at:
a. 10m/s for 30s
b. 20m/s for 20s
c. 2m/s for 100s
d. 15m/s for 28s
Answer:
down below!
Step-by-step explanation:
a)300m
b)400m
c)200m
d)420m
i hope i helped<3