Answer:
7. y = 2x + 7
8. y = -3x - 4
9. y = -5x - 34
10. y = 2/5x + 6/5
11. y = 1/4x + 4.5
12. y = -2x
Step-by-step explanation:
to find the slope-intercept formula of these charts: (i'm guessing that that's what your teacher wants? you forgot to include their directions in the images)
you need to use y = mx + b
to find m, you take two coordinates and then do (y2 - y1)/(x2 - x1)
to find b, figure out what y is when x = 0.
you can either do this by looking at the chart and finding 0 on the x side, or if that isn't there, take a different point and insert the y and x values into what you have so far. if you enter the points correctly and have an m, the only letter you should have left is b. so all you'd need to do from there is solve the equation for b!
hope this helped!!
(x – 10) + (3x – 6) =
please someone help?
Answer:
4x-4
Step-by-step explanation:
x-10+3x+6=4x-4
Hope helps :3
Answer: 4x-16
Step-by-step explanation:
please help me ASAP
The class 4S because you divide each number by its mean mark and standard division and 4S is the highest.
Complete the solution of the equation. Find the value of Y when X equals 5. X-5y=45
Answer:
y = -8
Step-by-step explanation:
5 - 5y = 45
-5y = 40
y = -8
Answer:
-8
Step-by-step explanation:
replace X with 5
subtract 5 from both sides of the equation:
-5y = 40
divide by - 5
y = -8
Please help
Match the picture to the reason that would prove the triangles congruent.
Options:
NONE
ASA
SSS
SAS
AAS
HL
49 increased by twice a number m
Answer:
49+2m
Step-by-step explanation:
49 is increased by twice a number m
Hope this helps!
What is the slope of the line shown?
Answer:
the slope of the line is 1/2
Answer:
Slope is 1/2
Step-by-step explanation:
If you use Y2-Y1/X2-X1, you will find the slope
2 coordinate points (6,0) (0,-3)
-3-0/0-6
-3/-6 Simplify this and you will get 1/2
i need help again sorry
Answer:
I want say it is C just by how close in proximity it is to E
Step-by-step explanation:
I need an answer ASAP -
Martha is spending the afternoon at the bowling alley with friends. She rents shoes for $5 and must pay $4 per hour to participate. Represent this situation with a linear equation.
Answers-
a. y=5x+4
b. y- 4x+5
c. y= 4x
d. y=5x
Answer:
y=4x+5
Step-by-step explanation:
x= the number of hours
y= total number of money
4x means each hour = 4 dollars
5 = the rent of the shoes
Therefore, y = 4x + 5
Match the following equations to their solutions. (Answers should be ordered pairs like this (x,y)
2x - y = 14
y = -2x - 1/2
7 + 5x = y + 7
3x + 2y = 36
6 - x = 4y
9x = 2y
Answer:
1. (8,2)
2. (-0.25,0)
3. (1,5)
4. (10,3)
5. (6,0)
6. (2,9)
dose anybody know how to do these kind of questions? with the step by step
Alba worked for 6 hr and 45 min at $10.90 per hour. What numbers could she use to estimate how much money she earned? Estimate the amount she earned and state whether you think the exact amount is a little more or a little less than your estimate
Answer:
Step-by-step explanation:
If we're going by estimation, then you can do 11 and 7 hours, meaning that she would make 77 for the 7 hours but the exact answer would be a bit less than the estimation
10.9 times 6.75 is 73.58 roughly. so 3 dollars and 42 cents off
Answer:
1. She could use 7 hours and 11 dollars per hour.
2. $77 (7x11)
3 I'd say my estimate is a little more than the exact amount because I did 6.75 (6.75 because 45 minutes is 75% of a hour) x 10.90 and got 73.575.
Find the measure of the exterior angle
Answer:
A exterior angle of a polygon is an angle outside the polygon formed by one of its sides and the extension of an adjacent side.
What is the slope of the line?
Answer:
3/2 3 over 2
Step-by-step explanation:
rise/run
rise over run
Answer:
-8/5
Step-by-step explanation:
I plugged in the points (-1,4) and (4,-4) into the formula y2-y1 divided by x2-x1
The point (-3, -5) is on the graph of a function. Which equation must be true regarding the function?
SAAB
Of(-3) = -5
f(-3,-5) = 8
f(-5) = -3
O f(-5, -3) = -2
Answer:
F(-3) = -5
Step-by-step explanation:
I got it right on the test
What would be the slope of the line perpendicular to the line y=3/5x-5
Answer:
y=-3/5x-5
the slope would be -3/5
Lynn bought 3 bags of chips for $1.86 each and 2 bottles of apple juice for $3.27 cach. If the tax on the items was $0.43, what was the total amount she spent?
Answer:
for the chips she spent $5.15 and for the apple juice she spent $6.11
Step-by-step explanation:
1.86*3=5.58
5.58-0.43=5.15
3.27*2=6.54
6.54-0.43=6.11
Find the Slope between two points: (-1,9) and (2, 3)
Answer:
Slope = -2
Step-by-step explanation:
x1 y1 x2 y2
(-1 , 9) (2 , 3)
Slope = y2 - y1
x2 - x1
3 - 9 = -6
2 -(-1) = 3
= -2
The slope between the two points is -2.
What is an equation of a line?The equation of a line is given by:
y = mx + c
where m is the slope of the line and c is the y-intercept.
Example:
The slope of the line y = 2x + 3 is 2.
The slope of a line that passes through (1, 2) and (2, 3) is 1.
We have,
The slope is given as,
m = (d - b) / (c - a)
Where (a, b) and (c, d) are the two points.
Now,
(-1, 9) = (a, b) and (2, 3) = (c, d)
m = (3 - 9) / (2 + 1)
m = -6 / 3
m = -2
Thus,
The slope is -2.
Learn more about equation of a line here:
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1) The garden gate costs $149.49; it is on sale for 10% off. What will be the amount of discount?
2) What will be the new sale price?
3) If there is a 5.5% tax on the purchase price, what will the taxes be?
4) What will be the total bill with the sales tax for the garden gate when it is on sale?
5) Bob paid $24.89 for a racket for racket ball. He sold it to Steve for $35.00 . How much was Bob's markup?
6) What percent of change did Bob use to price the racket to Steve?
Answer:
1. The amount off is $14.95
2. The new price is $134.54
3.Tax is $7.40
4. Total is $141.84
5.Markup is $10.11
6.28.89% change
Step-by-step explanation:
Tara can type 180 words in 4 minutes. At this rate, how many words would you expect her to type in 10 minutes?
Answer:
450 words in 10 minutes
Step-by-step explanation:
To set this up you need to put it like this:
[tex]\frac{180}{4}[/tex] = [tex]\frac{x}{10}[/tex]
From here, you need to cross multiply, which will get you to: 180(10) = 4x
Multiply 180 and 10: 1,800
The equation will now be: 1,800 = 4x
Now, divide both sides by 4: 450 = x
The required word that tara would type in 10 minutes is 450 words.
Given that,
Tara can type 180 words in 4 minutes. At this rate,
To determine how many words would you expect her to type in 10 minutes.
The ratio can be defined as the proportion of the fraction of one quantity towards others. e.g.- water in milk.
What is simplification?The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.
Here,
The rate of typing = 180 / 4 = 45 word per minute
Now a number of words typed in 10 minutes,
= 10 * 45
= 450 words per minute,
Thus, the required word that tara would type in 10 minutes is 450 words.
Learn more about ratios here:
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Write a function that gives the remaining amount of containments in kilograms, C(t), t hours after Nana started purifying the water
Answer:
[tex]C(t)= \frac{1}{2} kg (2/3) ^ t[/tex]
Step-by-step explanation:
Original Question:
Nana has a water purifier that filters 1/3 of the contaminants each hour. She used it to purify water that had 1/2 kilogram of contaminants. Write a function that gives the remaining amount of contaminants in kilograms, C(t), t hours after Nana started purifying the water.Explanation:
Each hour, the water purifier filters 1/3 of the contaminants, meaning that the contaminant reduces by 2/3. If the contaminant was 1kg (for example), the mass would be 2/3 kg after 1 hour- after 2 hours, it'll be 4/9 kg, so we see a pattern. We need to multiply the contaminant by 2/3 every single hour.[tex]C(t)= \frac{1}{2} kg (2/3) ^ t[/tex]Please help need answers
Answer:
y=0
Step-by-step explanation:
There is no slope so there is a slope of 0
The y-intercept is the origin so also 0 so the equation will be y=0
Please help me with my homework!!!!
Answer:
see below
Step-by-step explanation:
-(5)² = -1 * 5² = -1 * 25 = -25
List ascending order:
-5.3 x 10² = -5.3 x 100 = -530
-50
[tex]\frac{1}{2} = 0.5[/tex]
[tex]\sqrt{25} = 5[/tex]
{-5.3 x 10², -50, [tex]\frac{1}{2}[/tex], [tex]\sqrt{25}[/tex]}
Describe [tex]\sqrt{8}[/tex]: Real, Irrational
List descending order:
[tex]\sqrt{72} = 8.485[/tex]
6
[tex]\pi = 3.14159[/tex]
[tex]-\frac{3}{4} = -0.75[/tex]
{[tex]\sqrt{72}[/tex], 6, [tex]\pi[/tex], [tex]-\frac{3}{4}[/tex] }
George loan:
Principal * rate * time = Interest
2000 * .034 * 2 = 136
Principal + Interest = Payback
2000 + 136 = $2,136
Toy:
100% - 15% = 85%
.85 * 4.99 = $4.24
Find 12% of 200 plz help ty
Answer:
Step-by-step explanation:
to find this, you would do multiply the two since "of" means multiply
12% of 200
.12(200)
24 is your answer
find the length and width of rectangle :
the width is one third the length and the area is 15m square
What is the measure of the angle? Enter the answer in the box.
degrees
Answer:
you have to use the protractor tool
Anna invested $28,000 in an account paying an interest rate of 6.5% compounded daily. Assuming no deposits or withdrawals are made, how long would it take, to the nearest tenth of a year, for the value of the account to reach $39,500?
Answer:
It will take 5.3 years to reach $39,500
Step-by-step explanation:
Compound Interest
It occurs when the interest is reinvested rather than paying it out.
Interest in the next compound period is then earned on the principal sum plus the previously accumulated interest.
The formula is:
[tex]\displaystyle A=P\left(1+{\frac {r}{n}}\right)^{nt}}[/tex]
Where:
A = final amount
P = initial principal balance
r = interest rate
n = number of times interest applied per time period
t = number of time periods elapsed
We are required to find the time needed to convert the principal P into a given final amount.
Solving the above equation for t, we get:
[tex]\displaystyle t=\frac{log(A/P)}{n\cdot log\left(1+r/n\right)}[/tex]
Anne invested P=$28,000 in an account at r=6.5%=0.065 compounded daily. There are 360 days in a year, so n=360. The final amount A=$39,500.
Substituting into the formula:
[tex]\displaystyle t=\frac{log(39,500/28,000)}{360\cdot log\left(1+0.065/360\right)}[/tex]
t=5.3 years
It will take 5.3 years to reach $39,500
Answer:5.3
Step-by-step explanation:
2) If it is 12° outside and the temperature is going to
drop 19º. What will the new temperature be?
Find the range of the data. 98, 21, 52, 39, 45, 76
Answer:
77
Step-by-step explanation:
The range of the data is the largest number - the smallest number.
98-21
=77
Hope i helped :)
Answer:
77
Step-by-step explanation:
I just used a range calculator...
What is another way to write 75?
5+5+5+5+5+5+5
7×7×7×7×7
5×5×5×5×5×5×5
7+7+7+7+7
Answer:
3 • 25
Step-by-step explanation:
3 25 times also makes 75
4. Enrique's collection has 64 fewer refrigerator magnets in it than Peter's collection. They have 112 refrigerator magnets together. How many refrigerator magnets does Enrique have? How many refrigerator magnets does Peter have? pls help!!!
Answer:
hmmm ithink 176
Step-by-step explanation:
i search it thnks
Answer:
Peter=88
Enrique=24
Step-by-step explanation:
112-64=48
48/2=24
24+64=88