*I am assuming that each equation only appears once instead of twice in this problem
6x-y=18
4x+2y=26
We are solving by elimination, and to do that, we need to make the coefficient of one of the variables the same for both equations. The easiest way would be to multiply the top equation by 2 which would result in
12x-2y=36
4x+2y=26
As we see now, -2 and +2 can cancel out if we add the two equations together. So B is correct.
The other solution to this problem is to get a common coefficient for x to do that we first find the least common multiple of 6 and 4 which is 12
so to get 12 we need to multiply equation 1 by 2 and equation 2 by 3
resulting in 12x-2y=36 and 12x+6y=78 which we can solve by subtraction
Although this second way works, we have to realize that this is not one of the solutions. Instead the solution proposed to multiply by 4 and 6 which actually is just what I did above but multiplying everything by 2 again.
In conclusion, the answers should be A and B
Answer:
a b
Step-by-step explanation:
ill give brainliest for someone if they answer good
Answer:
yes
Step-by-step explanation:
answer is yes please mark me brainliest
Answer:
Yes, it is correct!
Step-by-step explanation:
Please don't forget to smile today:)
∠C and ∠D are complementary. Let m∠C=(8x)° and m∠D=(5x−1)°. What is the value of x? Enter your answer in the box.
Please explain how you got your answer!
Answer:
x=7
Step-by-step explanation:
help me this is a test I'll give brainliest to the person with the correct answer
Answer:
22
Step-by-step explanation:
Answer: 22ft^3
Step-by-step explanation:
First, find the volume of the little cubes that the rectangular prism can hold inside of itself.
The formula for volume of a rectangular prism is:
V = length x width x height.
= 1/2 x 1/2 x 1/2
= 1/8
Now, since the rectangular prism can hold 176 of these cubes, you need to multiply each cubes volume, 1/8, by 176. 1/8 x 176 = 22
Therefore, the volume of the box is 22ft^3
Karen is using a number line to represent the doors in the school hallway. She labels 0.25, 0.5, and 0.75 on the number line as a scale reference.
Where should Karen place a mark to represent a door that is 0.7 from the start of the hallway? Explain.
Answer:
A. 0.7 is less than 0.75, so it is a little to the left of 0.75.
Step-by-step explanation:
Which of the following expressions could be used to find the sale price of an item that costs d dollars if it is on sale for 30% off?
0.7 d
0.3 d
30 d
70 d
Answer:
0.3 d
Step-by-step explanation:
A percent is basically the percent over 100
In this case, the item is 30% off so you can write 30% as a fraction like the following:
30/100
Now we can convert that to decimal
30/100 is also 0.30
Since there is no need for the extra zero in this case
the answer for this question is:
0.3 d
Answer: 0.3d should be correct
help please, i will mark brainliest
Football A football team loses 8 yards on each of 3 consecutive plays. Find the total change in yards from where the team started.
The total change is. yards. plss help
Answer:(-10) I hope this helps
Step-by-step explanation:
On a winter day, the low temperature in Anchorage was 23 degrees below zero, (in Celsius) and the low temperature in Minneapolis was 14 degrees below zero (in Celsius). Sophia wrote, Minneapolis was colder because: -14 < -23
Is Sophia correct? Explain your answer.
Answer:
Sophia is incorrect
Step-by-step explanation:
This is because if you looked a number line, -14 is closer to 0 than -23. So.. -14>-23
Which side in FED does AB in ABC correspond to?
Answer:
Im pretty sure its:
AB corresponding to FE
BC corresponding to ED
CA corresponding to DF
Step-by-step explanation:
I really hope that was it :)
help please ?
Which dilation occurs here?
1-Dilation with a scale factor of 2
2-Dilation with a scale factor of -2
3-Dilation with a scale factor of -3
Square roots and the phythagoran theorem
Answer:
square root of 15= 225+ Square root of 9+ 81
225+81=17.49
Step-by-step explanation:
Answer: b = 12
Step-by-step explanation: a² +b² = c²
a² + 9² = 15²
a² + 81 = 225
a² = 225 - 81
a² = 144
√a² = √144
a = 12
I hope this helps you understand the process.
Please show your work.
Helppppppppppppppppppp please
You can find all of the missing angles by knowing the following information:
1) Adjacent angles equal 180 degrees
2) Vertical angles both have the same degree measure
3) all 3 angles of a triangle add up to 180 degrees.
Find the length of CD.
Answer:
The length of CD is 9 mm.
Choose the correct amount for changing one measurement into another. The ski run was 2000 meters. How many kilometers is this?
please hurry thank you!
Answer:
the answer to your question would be 2 kilometers
Step-by-step explanation:
You put your decimal after the last zero and move it three times over to the left.
please hurry thank you!
The line plot shows different lengths of fabric in yards.
What is the difference in length between the longest and shortest length of fabric?
Enter your answer, as a simplified fraction, in the boxes.
_ /_ yd
plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz help meeeee
Answer:
Uh I think it’s a carrot uh
Step-by-step explanation:
ill give brainliest to someone
Answer:
The profit of a company of five year is 4.1 million dollar
Answer:
$1.96 million dollars.
Step-by-step explanation:
Add all of the numbers together.
Help, please! order of operations, and negatives.
Answer: the answer to problem 6 is 36
Step-by-step explanation:
Answer:
1. -67
2. 46
3. 25
4. 48
5. -45
6. 3
7. 41
8. -14
9. 4
10. 36
Step-by-step explanation:
HOPE THIS HELPED! Let me know if I'm wrong!
ANSWER CORRECTLY FOR 25 POINTS PLEASE!!!!!
Answer: press the four square button
or
1.Go to the screen that you want to screenshot.
2.Press the ⎙ Print Screen key.
3.Open Paint.
4.Paste in the screenshot.
5.Save the screenshot.
Step-by-step explanation: hope this helps
What is the product of StartFraction 7 Over 11 EndFraction and StartFraction 3 Over 7 EndFraction?
StartFraction 3 Over 11 EndFraction
StartFraction 5 Over 9 EndFraction
StartFraction 33 Over 49 EndFraction
1
Answer:
3 over 11 or 3/11
Step-by-step explanation:
Hope this helps!
Answer:
Step-by-step explanation:
The start fraction is 3 over 11 end fraction.
What is the approximate circumference of the circle?
Answer:
fir circumstance of a circle =2πr
2×22/7×48/10=30.14cm
your answer will be option A
I hope u understand it....
Pls answer. tank u <3
Answer: (10,0)
Step-by-step explanation:
HELPP!!
Veronica requires 6,000$ per year in extra income. She has 60,000$ to invest and can invest A-rated bonds paying 15% per year or in a certificate of deposit Cd paying 5% per year. How much money should be invested in each to realize exactly 6,000$ in Interest per year?
Do the following…
the amount invested at 15%=$__________
the amount of money invested at 5%=$_________
Answer:
i actually think its 25 for the first one and 20 for the second
Step-by-step explanation:
just an educated guess
If the volume of a square-based pyramid is 300 cm cubed with a height of 9 cm, then what is the height of the base?
Answer:
9.4868 cm Rounded: 9.5cm
Step-by-step explanation:
V(Volume) = 1/3 x B(Base area) x h
300 = 1/3 x B x 9
10 x 1/3 = 10,3
300/10,3 = 90
B = 90^2
l(length of the base) = [tex]\sqrt 90[/tex] = 9.4868
Rounded Answer (to the first decimal) = 9.5
please help me there's more where this came from :)
Answer:
D.
Step-by-step explanation:
The time goes up by 1 every time and the distance goes up by 500 every time. Lets lok at the relationship:
As seen in the graph, every minute she goes 500 ft. Theoretically, if we take half of the time to run then we must take half of the distance. This can be described as a distance/time relationship. So now with that knowledge, we loot at the 10-minute mark; she's currently at 5,000 feet so if she goes half the time more we are adding half the feet she runs per minute (250ft). Therefore the answer is 5,250 feet since we are adding 250(half the time she runs per minute) to 5,200 feet(how much she ran in 10 minutes)
Hope this helps
Find the volume of the cone. Round your answer to the nearest tenth.
A cone is shown. Its height is 4 inches and the radius of the base is 2 inches.
The volume of the cone is about __cubic inches.
Answer:
approximately 56.51 cubic inches
Step-by-step explanation:
olume of a cone = 1 / 3 × pi × radius^2 × height
= 1/3 × 22/7 × 7.29 × 7.4
= 56.5148 cubic inches
i hope this work for you
Suppose you have a spinner that is evenly divided showing all the days of the week. You also have a bag of papers that list the months of the year. Are you more likely to spin the current day of the week or pull out the paper with the current month? How do you know?
Answer:
More likely to spin current day of the week.
Step-by-step explanation:
The probability of picking one specific day in a week is 1/7.
The probability of picking one specific month in a year is 1/12.
1/7 > 1/12
Answer:
Step-by-step explanation:
The probability of picking one specific day in a week is 1/7. The probability of picking one specific month in a year is 1/12.
1/7 > 1/12
Is there a proportional relationship between x and y? Explain.
x 8 10 12 14
y 5 7 9 11
1. No; all ratios yx are not equivalent.
2.Yes; each x value and y value increases by 2.
3. Yes; the difference between each x value and y value is 3.
4. No; all ratios xy are greater than 1. Ill mark brainllist if u answer correctly i need help.
Answer:
yes
Step-by-step explanation:
Answer:
4
Step-by-step explanation:
Solve the equation check your solution.4+k=14
Hey there,
Solve the equation :
4 + k = 14
4 + k - 4 = 14 - 4
k = 10
>> Let's verify :
4 + 10 = 14 ✔️
Therefore, k = 10 ✅
Have a good day ;)
Answer:
[tex]k=10[/tex]
Step-by-step explanation:
Given the following question:
[tex]4+k=14[/tex]
In order to answer one-step equations, we have to isolate the variable to do this we need to use inverse of operations.
[tex]4+k=14[/tex]
[tex]4-4=0[/tex]
[tex]14-4=10[/tex]
[tex]k=10[/tex]
To prove your answer:
[tex]10+4=14[/tex]
[tex]=4[/tex]
Your answer is "k = 10."
Hope this helps.