Solve the following question using the elimination method :)
-4x + 4y = 0
Y = -6x
-4(-6-2n) =30 + 8n
3 ( 1 - 8r ) = -3 ( r - 1 )
Answer:
y=0,. X=0.
Step-by-step explanation:
24+8n=30+8n
3-24r=-3r+3. (+24r)
3=21r+3. (-3)
0=21r
0=r
The midpoint between x and 27 is -3
Answer: x = -33
Step-by-step explanation:
27 + 3 = 30
-3 - 30 = -33
Answer:
-33
Step-by-step explanation:
I already took it TwT
Solve 4/s=-2/9 please help
Answer: 4/15
Step-by-step explanation:
hope it's help you.......
PLEASE HELP PLEASE ! 50 POINTS!
Answer:
From left to right:
x=-9
x=-23
x=24
x=8
x=-9
x=-28
Step-by-step explanation:
63/-7=-9
-15-8=-23
12*2=24
-4*-2=8
-20+11=-9
-7*4=-28
-7x=63 answer is -9
x + 8=-15 answer is -7
1/2x=12 answer is 24
x/-2= -4 answer is 8
x-11=-20 answer is -9
1/4x=-7 answer is -28
If the cost of 40 pens is Rs 600 , what is the amount required to purchase 4 dozen of pens
Answer:
Rs 720.
Step-by-step explanation:
4 dozen = 48 pencils.
By proportion 48 pencils cost
(48/40) * 600
= 6/5 * 600
= Rs 720.
HELP HELP HELP HEPL memememememme
Answer:
A.
Step-by-step explanation:
vertical translation UP 1 unit
You are planning a trip to Yellowstone National Park, and know that you can save money by driving
and staying with family along the way. The first leg of your journey will be 426 miles from Portland,
OR to Boise, ID where your aunt lives. After visiting with her, you will drive 388 more miles to
Yellowstone. Estimate the number of miles you will drive to get to Yellowstone National Park by
first rounding to the tens place.
Answer:
the number of miles that you would drive to go the yellowstone is 814 miles
Step-by-step explanation:
The computation of the number of miles that you would drive to go the yellowstone is shown below:
= First leg of the journey from portland + more drives to yellow stone
= 426 miles + 388 miles
= 814 miles
Hence, the number of miles that you would drive to go the yellowstone is 814 miles
2 + 14 + 2 − 12 = -4
Answer:
The answer is actually 6.
Answer:
no, it's 6.
Step-by-step explanation:
(x+4) (x-1) in standard form
Answer:
x^2-5x+4
Step-by-step explanation:
(x+4)(x-1) in standard form is x^2-5x+4
The sum of three numbers which are in tne ratio 2:5:7 is 28
Then the smallest number is --
Answer:
4
Step-by-step explanation:
Let the numbers be 2x,5x and 7x respectively.
2x+5x+7x=28
14x=28
x=28/14=2
Therefore the numbers are 2(2)=4,5(2)=10 and 7(2)=14
The smallest number is 4
A car and a truck left Washington, DC traveling in opposite directions. The car
traveled 19 miles
per hour faster than the truck, and at the end of 8 hours they were
1048 miles apart. What was the average speed of each vehicle?
Answer:
The speed of the car is 75 mph.
The speed of the truck is 56 mph.
Step-by-step explanation:
Call the speed of the truck (x) miles per hour. As per the given information, the car is (19) miles per hour faster. Thus, one can form expressions to represent the speeds of the vehicles.
car = ( x + 19 ) mph
truck = ( x ) mph
Using the formula, ( (speed) * (time) = (distance) ), one can say that the speed of the car, times the time it took plus the speed of the truck times the time will equal the distance between the two vehicles:
(( car speed )( time )) + (( truck speed )( time )) = ( distance between vehicles )
Substitute,
( ( x + 19 ) ( 8 ) ) + ( ( x ) ( 8 ) ) = 1048
Simplify,
8x + 152 + 8x = 1048
16x + 152 = 1048
-152 -152
16x = 896
/16 /16
x = 56
Add (19) to find the speed of the car:
truck speed + 19
= 56 + 19
= 75
The speed of the car is 75 mph.
The speed of the truck is 56 mph.
Answer:
The truck traveled at 81
mph. The car traveled at 100
mph.
Step-by-step explanation:
How do u evaluate x+11?
Answer:
You can't.
Step-by-step explanation:
You have nothing to substitute for the x.
Determine the value of e.
Question options:
A)
16
B)
32
C)
18
D)
8
9514 1404 393
Answer:
A) 16
Step-by-step explanation:
The ratio of long-side to short-side is the same for all of these similar triangles, so we have ...
e/8 = 8/4
e = 8(8/4) = 8(2) = 16
The value of e is 16.
Problem
There are 7 students in a class: 2 boys and 5 girls.
If the teacher picks a group of 3 at random, what is the probability that everyone in the group is a girl?
Answer:
2/7
Step-by-step explanation:
The total number of possibilities is 7 * 6 * 5
The number of possibilities for all girls is 5 * 4 * 3
so the probability is:
[tex]\frac{5*4*3}{7*6*5} \\\frac{4*3}{7*6} \\\frac{12}{42} = \frac{2}{7}[/tex]
Pencils cost $.10 and erasers cost $0.25. steve bought 5 more pencils than erasers. he spent a total of $1.55. how many erasers did steve buy?
Answer:
Let x be the number of pencils Steve bought.
Let y be the number of erasers Steve bought.
x=y+5
0.1x + 0.25y = 1.55
Solving the system, our answer is: (8, 3)
So, she bought 3 erasers.
Let me know if this helps!
Please help me I will give Brain
Answer:
your answer would be 68
Step-by-step explanation:
because it looks like in the photo that it is bigger then the 72 but smaller then the 90 so the answer would be 68
please mark me brainlyest?
HELP EASY MATH CLICK THIS PLEASE ANSWER LATE DUE LAST WEEK EASY
Answer:
344 m^2
Step-by-step explanation:
Area of the 2 triangles: (2)(1/2)(10)(5)=50
Area of three sides:3(7)(14)=294
294+50=344
Answer:
246
Step-by-step explanation:
Please Help me !!!!!
Answer:
6.156 seconds
Step-by-step explanation:
we can find the 'x' coordinate of the vertex by using -b/2a where b = 197 and a=16
x = -197/-32
x = 6.156
Polynomials math question
Which shape shows a reflection?
I’m scared to answer because I’m at 90 and I know if I get it wrong I’ll drop again
Answer:
B! Can I plz have Brainliest!!!!
Step-by-step explanation:
I've never gotten one before!
The sum of two numbers is 57 and the difference is 5. What are the numbers?
larger number:
smaller number:
Answer:
25+22
Step-by-step explanation:
When you subtract 27 to 22
Answer:
31 and 26
Step-by-step explanation:
31 + 26 = 57
31 - 26 = 5
Therefore, your answer is 31 and 26
Find a real-world example of this diagram. Next, write and solve a word problem about parallel lines and their associated angles based on your real-world example of the diagram.
Answer:
Step-by-step explanation:
A road
Morning donuts recently sold 18 donuts of which 1 was a cake donut. What is the experimental probability that the next donut sold will be a cake donut
5. Convert in to mixed fractions
(a)
18
5
Answer:
3⅗
Step-by-step explanation:
5×3 =15
18 - 15 = 3
therefore
18÷5
is
3⅗
Convert in to mixed fractions 18 and 5
Answer↓3 with a reminder of 3Explain↓Multiply the newest quotient digit (3) by the divisor 5 . Subtract 15 from 18 . The result of division of 185 is 3 with a remainder of 3 .
Hopefully help:)
#CarryOnLearningDavid used the computer a total of 45 hours last week. How
many more did David use the computer to play games than to do
homework?
Daniela fue a la florería a comprar rosas rojas para regalar a su madre el día de su cumpleaños. Si una rosa cuesta $2.550 ¿Cuánto cuesta 2 docenas?
Answer:
2 docenas cuestan $61.200.
Step-by-step explanation:
Para encontrar la respuesta, debes considerar que una docena equivale a 12 artículos, por lo cual tienes que multiplicar 12 por 2 para encontrar el número de rosas en 2 docenas:
12*2=24
Ahora, dado que sabes que una rosa cuesta $2.550 tienes que multiplicar este valor por 24 para encontrar cuanto cuestan 2 docenas:
$2.550*24=$61.200
De acuerdo a esto, la respuesta es que 2 docenas cuestan $61.200.
what is the slope of the graph?
0.242 to the nearest hundredth
245 tickets in 5 days what is the unit rate
Answer:
245/5 = 49 tickets per day
Answer:
245 / 5 = 49 so
49 tickets per day