Answers
Answer:
Step-by-step explanation:
1. x^2-x-20=3x-15
x=5, x=1 substitute
y=3*5-15 = 0
y=3*(-1)-15 = -18
Solution: (5,0) & (-1,-18)
2. x^2+2x+3=x+5
x=-2, x=1 substitute
y= -2+5 = 3
y=1+5 = 6
Solution: (-2,3) & (1,6)
Related Questions
Alfred has a lawn service. He earns $40 for every 3 lawns he mows. Which of the following
represents the rate of change his income with respect to the number of lawns he mows?
$50
4 lawns
$53.33
4 laws
4 laws
$50
4 laws
$53.33
Answers
Answer: I don’t think I’m right but 53.33
Step-by-step explanation:
Slope = 1.75; (10, 16.5)
Answers
y - y1 = m (x - x1)
y - 16.5 = 1.75 (x - 10)
y - 16.5 = 1.75x -17.5
y = 1.75x - 1
- Colin invests £1100 into his bank account.
He receives 5% per year simple interest.
How much will Colin have after 3 years?
Give your answer to the nearest penny where appropriate.
Answers
= 1100 x 3 x 5 /100
=165.00
=£165.00
Answer:
it is 1265 ?!?!?!!?!?!!?
Step-by-step explanation:
work out
how many centimeters is the growth rate of the plant per week? Please i really need this. PICTURE WHEN YOU CLICK
Answers
Answer:
4 and 3/4 YOU GOT THIS!!
Step-by-step explanation:
Answer:
I believe the answer would be 1/2 a centimeter per week, hope this helps
can someone help me out it would be great if u can explain it.
Answers
Answer:
113.1
Step-by-step explanation:
formula for circle is pie X radius^2
A right cone has a slant height of 17 feet, and the diameter of the base is 30 feet. What is the height, h, of the cone?
I WILL MARK BRANILEST
Answers
Answer:
8
Step-by-step explanation:
Answer:
Its 8 100%
Step-by-step explanation:
Edit: OK its right here is the The work And no I didn't copy
A recipe that makes 8 cups of limeade uses 2 cups of lime juice.
Describe the related ratio 2:8 using ratio language. Does the ratio involve only parts, or does it involve a part and the whole?
Answers
Answer:
For every 2 cups of lime juice, the recipe makes 8 cups of limeade; a part and the whole.
Step-by-step explanation:
The ratio shows that for 2 cups of lime juice there needed proportion of 8 cups of limeade.
and, the ratio involve a part and the whole.
What is Ratio?A ratio is a comparison between two amounts that is calculated by dividing one amount by the other. The quotient a/b is referred to as the ratio between a and b if a and b are two values of the same kind and with the same units, such that b is not equal to 0. Ratios are represented by the colon symbol (:). As a result, the ratio a/b has no units and is represented by the notation a: b.
Given:
A recipe that makes 8 cups of limeade uses 2 cups of lime juice.
and, ratio = 2:8
Here, the ratio shows that for 2 cups of lime juice there needed proportion of 8 cups of limeade.
and, the ratio involve a part and the whole.
Learn more about ratio here:
https://brainly.com/question/13419413
#SPJ2
Help please i always get the numbers mixed up.
Answers
29
2
Solve the inequality
- +3>
W
a.
c.
W <3 or w > 6
w <3 or w > 9
W <0 or w > 6
W <0 or w > 9
b.
d.
Answers
Step-by-step explanation:
Let's solve your inequality step-by-step.
2
w
+3>
29
w
3w+2
w
>
29
w
Let's find the critical points of the inequality.
3w+2
w
=
29
w
3w+2=29(Multiply both sides by w)
3w2+2w=29w(Multiply both sides by w)
3w2+2w−29w=29w−29w(Subtract 29w from both sides)3w2−27w=0
3w(w−9)=0(Factor left side of equation)
3w=0 or w−9=0(Set factors equal to 0)
w=0 or w=9
Check possible critical points.
w=0(Doesn't work in original equation)
w=9(Works in original equation)Answer:
w<0 or w>9
Simplify the expression: 33 - (24 + 3
Answers
Answer:
33-27
Step-by-step explanation:
Answer:
The answer is 6
Step-by-step explanation:
you do what is in the parentheses then do 33-27 which is 6
What is the difference between infinite solutions and all real numbers?
Please explain or provide examples.
Willing to give brainliest!!
Answers
Answer:
Real numbers are like pi, 4, -3, 1/3, 1.25, -3468374, ......
Infinite solutions are like when you solve a problem and it doesn't work out.
like 2+2 = 3 + 2
4 = 5
It doesn't make sense at all
Hope it helps :)
Need help what’s the irrational number?
Answers
Answer:
B. √6
Step-by-step explanation:
Irrational number is a number that cannot be expressed in a form of fraction
2.5 = 5/2
√6 = 2.49...
1/2 = 1/2
√9 = 3/1
a salesperson earns a commission of 312$ for selling 2600 in merchandise
Answers
What is your question?
Plzzzzzzzzzzzzzzzz Helo
Answer correct please but It can tell if the answer is wrong
Answers
Answer:
im pretty sure 20 seconds
Step-by-step explanation:
Answer:
11.494 seconds
Step-by-step explanation:
I don't think you need to show work
Manco went scuba diving. As he dove deeper, the water pressure around him increased at a constant rate. The table compares Mancini's depth (in meters) and the water pressure around him(in atmospheres). what was the pressure around manco when he was 30 meters deep?
Answers
Answer:
4.0 atm
Step-by-step explanation:
it looks to be a proportional ratio so for every meter pressure increases by .1 atm so if you add .8 to 3.2 you get 4 atm
Lin runs 5 laps a track in six minutes how many minutes per lap is that
Answers
Answer:
1.2 minutes
Step-by-step explanation:
6 divided by 5 = 1.2
To do this, you take the total number of minutes, which is 6, and divide by the number of laps that Lin ran, which was 5.
Answer:
1.2 minutes
Step-by-step explanation:
5 laps/6 minutes = 1 lap/x minutes
To convert the ratio from 5 laps to one laps, 5 was divided by 5. Therefore, to keep the same ratio, 6 must also be divided by 5, making the answer:
1 lap/1.2 minutes
Please someone help me, I really need help with this.
Answers
Answer:
9
Step-by-step explanation:
its 9 because that's where 3 pens are plotted in the graph
What is the total area of the figure below?
Answers
Answer:
141
Step-by-step explanation:
First find the area of the trapezoid
(16 + 10) * 9 / 2 = 117
Then find the area of the triangle
0.5 * b * 6 = 24
Add them both together
117 + 24 = 141
Answer: 141
GIVE ME BRAINLEST
Step-by-step explanation:
please help!
Create an equation for the following situation and find the value of x.
8 more than 2 times a number x, all divided by 5 equals 2.
Answers
Answer:
8+2x/5=2
2x/5=2-8
2x/5=-6
2x=-6x5
2x=-30
x=-30/2
x=-15
Step-by-step explanation:
HELP!! I dont get it please help
Answers
Answer:
Hypotenuse
[tex] {length \: of \: tv}^{ {}^{2} } [/tex]
f(x) = 2^x
what is the domain ?
range ? asymptote ? and transformation
Answers
y=2x
Step-by-step explanation:
I dont know what else there is sry
Solve the system of equations by ELIMINATION.
Show the work that would correspond with the elimination method.
PLS HELP I ONLY HAVE 20 MINUTES
Answers
Step-by-step explanation:
4x + 2y = 10 --------(1)
2x + 3y = 33 -----------(2)
Multiply 2 with eq. (1) and 4 with eq. (2)
8x + 4y = 20 ____________(3)
8x + 12y = 132 ______(4)
Subtracting (3) from (4),
8x + 4y = 20
- 8x -12y = -132
----------------------
0 -8y = -112
y = 112/8
y = 4 is the answer.
Putting the vakue of y in eq. (2),
2x + 12 = 33
2x = 33-12
2x = 21
x = 21/2 is the answer.
John rode 2 kilometers on his bike. His sister Sally rode 6,000 meters on her bike. How many more kilometers did Sally ride?
Answers
Answer:
I don't understand, please write again
Answer:
Sally rode 4 kilometers more than her brother.
Step-by-step explanation:
1,000 meters = 1 kilometer
So if you convert Sally's meters into kilometers, you get 6 kilometers. John rode 2 kilometers so you do 6 kilometers - 2 kilometers = 4 kilometers.
Now you got your answer!
Hope this helped.
Sunita creates a scale model of an aeroplane. The scale of the model is 4 cm to 15 m. Sunita's model has a wingspan of 17 cm. What is the wingspan of the real aeroplane?
Answers
Answer:
36.43m
Step-by-step explanation:
Let the wingspan of the real aeroplane = x
The scale of the model is 4 cm to 15 m.
= 4: 15 = 4/15.
Sunita's model has a wingspan of 17cm.
Hence:
4cm/15m = 17cm/xm
Cross Multiply
4x = 15 × 17
4x = 255
x = 255/4
x = 36.428571429 m
Approximately = 36.43 m
Therefore, the wingspan of the real aeroplane is 36.43m
Which expression represents the sentence "five times a number, n"?
Answers
Answer:
5n
Step-by-step explanation:
:)
Answer:5n
Step-by-step explanation:
Gabriel is going to invest in an account paying an interest rate of 2.8% compounded
continuously. How much would Gabriel need to invest, to the nearest cent, for the
value of the account to reach $85,000 in 13 years?
Answers
Answer:
59065.75
Step-by-step explanation:
-2(7 – n) + 4
What is the answer to this any body know it??????????
Answers
Answer:
2n+10
Step-by-step explanation:
you just distribute the -2 and you get -14+2n+4 and then add and you'll get 2n+10
if you are solving for the variable n then you would want your equation like this 2n+10=0
next you would put the 10 on the other side of the equation and have 2n=-10
finally you would divide by 2 and get n=-5
what is the sum of 1/8 and 1/12.
Answers
Answer:
5/24
Step-by-step explanation:
Answer:
5/8
Step-by-step explanation:
Input Data:
Fraction A = 1/8
Fraction B = 1/2
Solution:
A + B = 1/8 + 1/2
Denominator of the two fraction is different. Therefore, find lcm for two denominators (8, 2) = 8
Multiply lcm with both numerator & denominator
Plot the point, (−1,−1.5).
Select the point tool. Then, click on the graph to plot the point.
Answers
Answer:
hope this helps
Step-by-step explanation:
Alexa has a points card for a movie theater. She receives 25 rewards points just for signing up. She earns 4.5 points for each visit to the movie theater. She needs 61 points for a free movie ticket. How many visits must Alexa make to earn a free movie ticket?
Answers
Answer:
8
Step-by-step explanation:
25+ (4.5 x 8)
25+ 36
=61.
She needs 8 visits
Answer:
8
Step-by-step explanation:
61 - 25 = 36
36 divided by 4.5 = 8