when is it best to use the graphing method to solve a system of equations????
Answer:
graphing by hand it probably can help or you could do it your way if u want
if hector ran 35.5 kilometers last week and 22.5 kilometers this week how many meters did he run over the last two weeks
Answer:
58000m
Step-by-step explanation:
he ran 35.5km+22.5km=58km
58km(1000m/km)=58000m
2. What is the equation in point-slope form of the line that passes through the point
(4,-5) and has a slope of = ?
3
Answer:
y+5=[tex]\frac{2}{3}[/tex](x-4)
Step-by-step explanation:
PLEASE HELP!!!!!!!!
find the missing value
y=-4x-1
( ,11)?
Put the following numbers in order from least to greatest.
0.52
0.6
14/25
57%
Answer:
57% 0.52 14/25 0.6
Step-by-step explanation:
all you have to do is change all of the numbers into decimals
hope this helps :)
First, convert each to the same (#/#, 0.#, or #%). I'll use decimals (usually the easiest). 0.52 and 0.6 remain the same. 14/25 may seem hard at first, but you can change it to 56/100 (14*4/25*4=56/100), then you can use that to convert to 56%. Multiply by 0.01, or divide by 100, remove the %, and you will get 0.56. For 57%, you just need to do repeat the last step again, which will give you 0.57. From least to greatest, the list would be 0.52, 0.56, 0.57, and 0.6, or 0.52, 14/25, 57%, and 0.6.
HELP PLEASE!
a car drives at a rate of 65 mi/hr. what is the speed of the car in ft/s? note: 1 mi = 5280 ft
a. 44 ft/s
b. 95 ft/s
c. 5720 ft/s
d. 0.0181 ft/s
I'm pretty sure its c
because 5280x65=343200
and 343200/60 is 5720
Answer: It’s 95 ft/s
Step-by-step explanation:
quiz
After a 5% discount, a car is on sale for $11,400. What was the price of the car before the discount?
Answer:
$11,970 is the price of the car before the discount
Step-by-step explanation:
Miguel wants to have at least $500 in his account to spend over the summer. He already has $150. If he deposits $25 each week, write and solve an inequality to determine how many weeks it will take him to reach at least $500.
Answer:
listen to the other guy
or girl
Step-by-step explanation:
It will take at least 14 weeks to have at least $500.
What is inequality?The relation between two unequal expressions is defined as inequality.
Given that, the person has $150 in his account and he deposits $25 each week into this account.
The amount in the account after w weeks is:
150 + 25w
Let the amount in the account after w weeks is at least $500, then it follows:
150 + 25w ≥ 500
25w ≥ 500 - 150
25w ≥ 350
w ≥ 14
Hence, it will take at least 14 weeks to have at least $500.
To learn more about inequalities, click here:
https://brainly.com/question/28823603
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Please help me with this question I’ll give brainliest for whoever is right
Answer:
5,-4, 2,-4
Step-by-step explanation:
this is the correct answer luv
On a piece of paper, graph yz-2x-2. Then determine which answer choice
matches the graph you drew.
A
B
с
5
(-2,2)
(-2,2)
(-2,2)
(-2,2)
-5
0.-23
0.-27
(0.25
0.-235
-5
A. Graph D
B. Graph B
O C. Graph A
D. Graph C
Answer:B
Step-by-step explanation:
Option B is correct, the inequality y≥-2x-2 is represented in the second graph or graph B.
What is Graph?Graph is a mathematical representation of a network and it describes the relationship between lines and points.
The given inequality is y≥-2x-2
y greater than or equal to minus two times of x minus two.
y≥-2x-2
The line passes through the points (-2, 2) and (0, -2).
As there is given greater than or equal to the line should be solid not dotted.
Greater than or equal to means we have to shade away from the origin.
The second graph satisfy all these properties.
y≥-2x-2 is represented in the second graph.
Hence, the inequality y≥-2x-2 is represented in the second graph.
To learn more on Graph click:
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Giving brainlest to the first person who answers correctly
Answer:
1/2
Step-by-step explanation:
slope is
m= y2-y1/ x2-x1= 6-5/2-0=1/2
(3x2 - 2x + 5) - (3x2 - 8x + 2) =
What is the truth value of "If yesterday was Tuesday then today is Wednesday"
Answer:
the required truth value of the statement will be:
p q p → q
T T T
Step-by-step explanation:
A conditional statement contains two parts:
hypothesis (if) conclusion (then)We know that the truth table for the conditional statement is:
p q p → q
T T T
T F F
F T T
F F T
Given the statement that "If yesterday was Tuesday then today is Wednesday" indicates that the hypothesis is true and the conclusion is also true. Meaning that we only get Wednesday if the previous day was Tuesday.
Thus the required truth value of the statement will be:
p q p → q
T T T
The sum of two numbers is 68 and the difference is 12. What are the numbers? Larger number: Smaller number:
Answer:
This is hard asfk
Step-by-step explanation:
Sorry but im confused just as you.
Solve for EG. A) 18 B) 12 9 D) 6
Answer:
It's be 9. The opposing line is 8, and because it's slightly offset, I'd wager it's 9.
Let me know if you need more help! :)
What is the force on a 1000 kg elevator that is falling freely at 9.8 m/sec2
Answer: The only force on it is its weight, w=9800N
Step-by-step explanation:
Jessa started with 100 sugar cookies for the Christmas banquet and gave away x cookies. Cooper started with 120 cookies but gave away twice as many pieces as Jessa did. How many sugar cookies did Jessa give away if they had the same number left?
Answer:
20 cookies
Step-by-step explanation:
To find the answer start by plugging in numbers. first, subtract the number from 100 or Jessa's number of cookies then multiply that by 2 and subtract that from 120 or Cooper's cookies. If the two resulting numbers are equal then you have the right answer.
Solve for a!!!!!!!!!!
Answer:
4
Step-by-step explanation:
the fraction has to equal to 2
-2+4=2
so a/2=4
or 4/2=2
in the sequence 11, 13,15,17 the first term is and the 4th term is ?
PLS HELP
Answer:
Isnt the
Step-by-step explanation:
Isnt the first term 11
And the 4th 17 lol
Plssss answer ASAP!!!!!!
Answer:
You do 2 times 5x, the simplify.
Answer: none of these
Step-by-step explanation:
Mai earns $7 an hour mowing lawns. Her friend Priya earns $8.50 an hour. If Mai started with $15, how many hours will it take both friends to make the same amount of money?
7x+15=8.5x
x=10
Standard form:
−3
2
x + 15 = 0
Factorization:
−3
2
(x − 10) = 0
Solutions:
x = 30
3
= 10
Lily invested $90,000 in an account paying an interest rate of 4.6% compounded
annually. Assuming no deposits or withdrawals are made, how long would it take, to
the nearest year, for the value of the account to reach $221,200?
Answer:
20
Step-by-step explanation:
I'm just doing this for points but it is the right answer
write the slope intercept form of the equation of each line
HELP!!! I NEED HELP!
The coordinates of the point that is a reflection of Y(-4, -2) across the x-axis are __The coordinates of the point that is a reflection of Y across the y-axis are __
Answer: Reflection over X axis is (-4, 2) and reflection over the Y axis is (4, -2)
Step-by-step explanation:
Shayla is going to paint a wall. The wall is 23 feet long by 8 feet high. A gallon of paint costs $11 and covers 320 square feet of area.
If the wall requires two coats of paint, what is the minimum cost of painting Shayla's wall?
Answer:
$12.65
Step-by-step explanation:
Given that the wall is 23 feet long and 8 feet high.
As the wall is rectangular, so the area of the wall,
A=23x8=184 square feet.
As a gallon of paint costs $11 and covers 320 square feet of area, so
Cost of paint for 1 square foot area = $ 11/320 per square foot.
Cost for 1 coat of paint = $ (11/320)x184
Cost for 2 coat of paint = $ (11/320)x184x2= $ 12.65
Hence, cost requires for 2 coats of paint is $ 12.65.
Olivia got a 72% on her quiz, there are 25 questions how many did she get right and how many did she get right
Answer:
18
Step-by-step explanation:
72% of 25 is 18.
Hope this helped! :)
Sara says, "If you subtract 14 from my number and multiply the difference by - 3, the result is – 42."
What is Sara's number?
Sara's number is |
Answer:
Sara's number is 28
Step-by-step explanation:
Let's assign Sara's number the variable x and solve this equation using the information provided.
"If you subtract 14 from my number"
x - 14
"and multiply the difference by - 3"
-3(x - 14)
"the result is – 42."
-3(x - 14) = -42
Now we can solve from here for x.
-3(x - 14) = -42
x - 14 = 14
x = 28
n + 1 < −8
the solution of the inequality is ____?
Answer:
n < -9
Step-by-step explanation:
Subtract 1 from both sides: n < -8 -1
Simplify -8 -1 to -9
n < -9
Brainliest Please!!?!!!
- Hermionia
is there anything after 16a+20 ?
Answer:
The equivalent expressions are:
[tex]4\left(4a+5\right)=16a+20[/tex]
[tex]=2\left(8a+10\right)[/tex]
[tex]=12a+20+4a[/tex]
Yes, 16a+20 could be further reduced by taking 2 as a common factor.
i.e. 16a+20 = 2(8a+10)
Step-by-step explanation:
Given the expression
[tex]4(4a+5)[/tex]solving the expression to determine the equivalent expression
[tex]4\left(4a+5\right)[/tex]
[tex]\mathrm{Apply\:the\:distributive\:law}:\quad \:a\left(b+c\right)=ab+ac[/tex]
[tex]4\left(4a+5\right)=4\cdot \:\:4a+4\cdot \:\:5[/tex]
[tex]=16a+20[/tex]
Taking 2 as the common factor
[tex]=2\left(8a+10\right)[/tex]
Also
[tex]12a+20+4a = 16a+20[/tex]
Therefore, the equivalent expressions are:
[tex]4\left(4a+5\right)=16a+20[/tex]
[tex]=2\left(8a+10\right)[/tex]
[tex]=12a+20+4a[/tex]
Yes, 16a+20 could be further reduced by taking 2 as a common factor.
i.e. 16a+20 = 2(8a+10)
What is 2792 + 9383790202
Answer:
9383792994
Step-by-step explanation:
I the answer is 9383792994