Answers
Related Questions
2) Add the following:
4a2 + b2 – 3ab, 3a2 – 7b2 + 8ab and a2 – b2 + 2ab
Answers
Answer:
8a2-8b2+7ab
Step-by-step explanation:
Putting together all of the a2 gets you to 8a2
Putting together all of the b2 gets you to -8b2
Putting together all of the ab gets you to 7ab
what is 21+7+4×8 gemdas rule
Answers
Answer:
60
Step-by-step explanation:
21+7+4x8=
21+7+32=
60
A computer store bought a program at $10 and sold it at a selling price of $12 find the percent makup
Answers
Answer:
20%
Step-by-step explanation:
12-10=2
changed ÷ original x 100
2 ÷ 10 x 100
=20%
Solve the equation y – 5x = –7 for y.
A. y = 5x – 7
B. y = –5x – 7
C. y = 5x + 7
D. y = –5x + 7
Answers
Answer:
the answer is B
Step-by-step explanation:
Answer: A. y = 5x -7
Step-by-step explanation:
Y - 5x = -7
+ 5x + 5x
Y = 5x - 7
**you can’t subtract -5x to -5x because it’s already a negative. It should be a positive 5x so you can move it to the other side.
A seabird is 28 meters above the surface of the ocean. What is its elevation?
Answers
Answer:
The elevation is 28 meters.
Step-by-step explanation:
This is pretty obvious because it says that the bird is above the ocean, not below. So, it is positive.
Hope this helps! :)
can someone help me pleaseee :)
u have to make the questions become y = mx + b
Answers
Answer:
3. 8y= -7x -12
4. -3y= 4x -12
5. 7y= -2x +4
Do you want me to do the rest?
did you got it??
The rest are:
6. -3y =6x +12
7. -10y= 5x+20
8. 4y=2x +12
I NEED HELP ASAP PLEASE!!! I'LL GIVE BRAINLIEST FOR THE CORRECT ANSWER!!!
Answers
Answer:
x = 3
y = 4
Step-by-step explanation:
Please let me know if you want me to write an explanation for my answer :)
Two cars are 50 miles apart and driving towards each other. One car is driving at a speed of 30 miles per hour and the other car is driving at a speed of 45 miles per hour. How long does it take for the cars to pass each other
Answers
Answer:
40 minutes
Step-by-step explanation:
30x+45x=50
75x=50
x=.6667 hours or 40 minutes
check:
30 mph for 40 minutes=20 miles
45 mph for 40 minutes=30 miles
total=50 miles
HELPPP
The school that Ryan goes to is selling tickets to a play. You can buy 2 senior citizen tickets and 4 child tickets for a total of $70. You can also buy 2 senior citizen tickets and 1 child ticket for a total of $31. What is the price each of one senior citizen ticket and one child ticket?
A) senior citizen ticket: $13, child ticket: $9B) senior citizen ticket: $6, child ticket: $7C) senior citizen ticket: $9, child ticket: $13D) senior citizen ticket: $13, child ticket: $14
Answers
Answer:
6 for senior and 7c for child
Step-by-step explanation:
Convert the following to a percentage: $0.40 out of $2.50
Answers
Answer:
16%
Step-by-step explanation:
Solution for 0.40 is what percent of 2.50:
0.40:2.50*100 =
(0.40*100):2.50 =
40:2.50 = 16
Answer:
16%planation:
one hundred twenty-three and thirty hundreths. in decimal form
Answers
Answer:
0.2330
Step-by-step explanation:
Enter the number that belongs in the green box
Answers
The reason for this is because the image shows that ALL the sides are EQUAL. Therefore, all the angles must be equal.
So, we know that a triangle equals a total of 180°. If we simply divide that total by 3 we get 60°.
Equilateral triangles are triangles whose all sides and angles are equal.
Since the above given triangle has 3 equal sides it is an equilateral triangle.
So, the three angles of this triangle can be 3x.
Which means :
[tex] =\tt 3x = 180[/tex]
[tex] =\tt x = \frac{180}{3} [/tex]
[tex]\hookrightarrow \tt \color{plum}x = 60°[/tex]
▪︎Therefore, x = 60°
PLZZ HELP ME IM DOING A TEST RNNNN.
Answers
Answer:
5(x)+5(y)=10
10(x)+2(y)=12
Step-by-step explanation:
i just got done with that same thing
Create an expression that is equivalent to 9(3x + 5 + x) without using
parentheses.
Answers
Answer:
27x + 45 + 9x
37x + 45
it's here
2x-y+8z=13
3x+4y+52=18
5x-2y-72=20
Answers
Answer:
Answer is above (In the image).
Step-by-step explanation:
I am not sure if that is what you were looking for. To convert it to decimals, just input the figures into your calculator.
In my opinion the best way to solve these equations are elimination, therefore I will be giving my answer in this way!
2x-y+8z=13 1️⃣
3x+4y+52=182️⃣
5x-2y-72=203️⃣
We first combine liked terms in equation 2 and 3.
2️⃣turns into 3x+4y=-34 let's call it 2️⃣'
3️⃣turns into 5x-2y=92 let's call it 3️⃣'
Then solve for x
3️⃣'*2
10x-4y=184
3️⃣+2️⃣
13x=150
x=150/13
Now substitute the x back into equation 2️⃣'
3*150/13+4y=-34
450/13+4y=-442/13
4y=-892/13
2y=-446/13
y=-223/13
Now we can substitute this back into 1️⃣ to solve for z
2*150/13- - 223/13+8z=169/13
523/13+8z=169/13
8z=-354/13
4z=-177/13
z=-177/52
This problem is kind of messy so let me restate my answer!
x=150/13
y=-223/13
z=-177/52
I really hoped this is correct and it helped, and would appreciate it if you give me brainlliest! If you have any more questions about my solution please ask me in the comments!
Angle A and angle B are supplementary angles. If the measure of angle A = (3x - 12) and the measure of angle B = (4x - 25), find the measure of angle B.
Answers
Answer:
what is x so I can help you.
{y=5x-7
y=-2x+7 Solve the system by graphing.
Answers
Answer:
I love algebra anyways
The ans is in the picture with the steps how i got it
(hope this helps can i plz have brainlist :D hehe)
Step-by-step explanation:
Answer: Put both equation into desmos and the crossing point will be (2,3) and the graph will be there.
Step-by-step explanation: 5x-7 = -2x+7 y = 5(2) - 7
5x = -2x + 7 + 7. y = 3
5x = -2x + 14
5x + 2x = 14
7x = 14
x = 2
Which story shows 1/3 divided by 5?
Answers
Please please help asap!!! I will mark brainliest!!!
Answers
Answer:
The other angle is 63 if it is asking what I think it is asking
Step-by-step explanation:
If it is right can you mark brainliest
Answer:
63 or 72
Step-by-step explanation:
What is the answer for x?
-7=3.5+5x
Answers
Answer:
x=-2.1
Step-by-step explanation:
Could you please help me? Thank you!
Answers
Answer:
steak
Step-by-step explanation:
you can touch the steak
you can eat the steak
you can smell the steak
you can hear the steak sizzle
you watch the steak as it cooks
Emilio earns $15 per hour at one job and $18 per hour at a second job. He works for 3 hours at the first job and 90 minutes at the second. What is his average hourly pay rate?
Answers
explanation: i’m good at math
Solve for the value of p.
2 Xp=44
Answers
Answer:
p=22
sooooooooooooooooo ezzzzzzzzzzzzzzzzzzzzz
need help in this show working please
Answers
In the number 8246315 what digit is in the hundreds place?
Answers
Answer:
the digit 3 is in the hundredths place
Step-by-step explanation:
8,246,315
the 3
Answer:
3
Step-by-step explanation:
Write the following inequality in slope-intercept form. –12x – 2y ≥ –42 y ≥ –6x – 21 y ≤ –6x – 21 y ≤ –6x + 21 y ≥ –6x + 21
Answers
Answer:
y ≤ –6x + 21
Step-by-step explanation:
The cereal box shown below is a rectangular prism. Find the surface area of the cereal box.
Answers
Answer:
580 cm^2
Step-by-step explanation:
First, find the area of the front and back. 20*10=200
There are 2 sides with 20*10 ( front and back) so we can multiply by 2. 200*2=400
Then, the sides. 3*20=60*2=120
Then, the top and bottom 10*3=30*2=60
400+120+60=580
Answer:
420
Step-by-step explanation:
60+60+30+30+120+120
hope this helped :)
Write an equation that models the linear relationship in the graph below
Answers
Answer:
y=-4/7x+4
Step-by-step explanation:
hope this helps
Answer:
4/7+4=y
Step-by-step explanation:
y=mx+b
10 points possible. answer everything completely and I will mark brainliest
Answers
Answer: A is a function. B is not a function. C is a function. D is not a function. E is not a function. F is not a function. G is a function. H is a function. I is not a function.
Step-by-step explanation:
Which number is equal to 100?
Answers
Answer:
10 square2
36 + 64 = 100. In other words, 6² + 8² = 10²
Answer:
C. 10^2
Step-by-step explanation:
When you have an exponent and the base is 10, the exponent is how many zeros there are total that come after the 1. There are 2 zeros after the 1 in 100, so 10^2 is the answer.