Answers
Answer:
1st x=66y
2nd x=35z
3rd 6h+2s+t+5
Step-by-step explanation:
MArk BRAINLIEST FOR 4 MATH ALGEBRA CALCULATORS
Related Questions
QUESTION 13: Select each expression that is equivalent to -2 -3(n-1)."
3n+ 3-2
4(n + 1)
-2(n+2) + 5(n+1)
3n + 1
-5(n+1)
n+1
Answers
First, we have to simplify the first expression so we know what we're lookin' for.
-2-3n+3, -3n+1
We can scroll down the list of choices, and we can already see the answer.
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sorry if this doesn't help
can you solve this for me please?
Answers
Answer:
19: 106
20: 79
21: 70
Step-by-step explanation:
Circle upper left
The central angles all add up to 360 degrees
BC + CD + 148 = 360
But CD = BC
2BC + 148 = 360 Subtract 148 from both sides
2BC = 360 - 148 Combine
2BC = 212 Divide by 2
BC = 106
20
3 of the 5 arcs are marked as being equal.
Let each of them be called = x
3x + 41 + 82 = 360 Combine
3x + 123 = 360 Subtract 123 from Both sides.
3x = 360 - 123
3x = 237
x = 237 / 3
x = 79
BC = 79
21
Unless DE and FC are diameters, this can't be solved. I will assume they are.
FB + 48 + 22 = 180.
FB + 70 = 180
FB = 110
===========
FC = FB + BD + DC
180 = 110 + 22 + DC
180 = 132 + DC
DC = 180 - 132
DC = 48
===========
BC = BD + DC
BC = 22 + 48
BC = 70
Fatimah wants to build a one-sample z interval to
estimate the proportion of students at her school who ate
breakfast every day last week with 90% confidence. She
takes a random sample of 75 students and finds that 20
ate breakfast every day last week.
What critical value z* should Fatimah use to construct
this confidence interval?
A) z* = 1.282
B) z* = 1.645
C) z* = 1.96
D) z* = 2.576
Answers
Answer:
B: z*=1.645
Step-by-step explanation:
Khan academy step by step
Answer: z*=1.645
Step-by-step explanation:
SWYK 16: Slope and Y-Intercept
The equation y = 10x + 15 represents a gym that charges. What is the slope and y-intercept?
Answers
2x+7=27 i need help nolie .
Answers
Answer:
x=10
Step-by-step explanation:
2 x 10 = 20+7=27 therefore x=10
Answer:
x=10
Step-by-step explanation:
2x+7=27
2x=27-7
2x=20
2x/2=20/2
x=10
13=d divided by 6
(solve for d, thanks!)
Answers
Answer:
78 = d
Step-by-step explanation:
13 = d/6
Multiply each side by 6
13*6 = d/6*6
78 = d
What's 5m²+5m+9m+8m²-m²= plss
Answers
Answer:
12m^2+14m
Step-by-step explanation:
The "^means exponet" Hope I made your day
:)
I need help pls help me with this i still dont know how to do it
Answers
Answer: u multiply them all together
Step-by-step explanation:nugggybi8ybggg8yiubgy8iibgu777777777b8u
can someone pls answer :/
Answers
Triangle LMN is given. What is the value of cos(N)?
A) 4/5
B) 3/5
C) 3/4
D) 4/3
Answers
What is 1390000000 in scientific notation?
Answers
Answer:
139 e7
Step-by-step explanation:
I'm not good at scientific notation but I think I'm getting better....
Answer:
1.39 x 10^9
Step-by-step explanation:
SOEMOME PLEASE HELO
Answers
Answer:
the secound one
Step-by-step explanation:
hope it helped:3
Write in simplest form: 8t2/(36t) = _____
Answers
c+11=24
please help!!
Answers
Answer:
13
Step-by-step explanation:
Answer:
c=13
Step-by-step explanation:
Hey There!
c+11=24
When looking at this problem you want to get the variable on one side (c) and the constant on the other ( any whole number)
as you can see we need to get rid of the 11 on the left side
to do that we subtract 11 but whatever you do to one side you have to do to the other side
11-11 cancels out
24-11=13
so we can conclude that
c=13
For Kristina’s birthday, her parents purchased 16 balloons from an online party store. The cost for each balloon was the same. The store also charged an $8.00 shipping fee. The total amount that Kristina’s parents paid was $56.
Write an equation to model the situation. Use x to represent the cost of each balloon.
Solve your equation from part A to find out the cost of each balloon.
Answers
Answer:
56÷x+8
Step-by-step explanation:
What is the value of 18 − 3k + 9 when k = 4?
pls help!!
Answers
Answer:
15 I think. not fully shore though
Step-by-step explanation:
Multiply 3x4. then 18-12=6. lastly add 9
Answer:
15
it is given that. k= 4
so, putting the value of k. in
given equation = 18 - (3*4 ) + 9
18 - 12 + 9 = 15
hope it helps
A pair of sneakers was purchased. When they were purchased the price decreased by 20% for a sale price of $125.00. What was the original price?
Answers
Answer:
$625
Step-by-step explanation:
to find the original divide the sale price by the decreased percentage. 125/%20(or .20)
what is the answer please i need help
Answers
Answer:
Step-by-step explanation:
7. The daily cost of production in a video game factory is calculated using c(x) = 400 + 25x, where x is
the number of complete video games manufactured. Which set of numbers best defines the domain of c(x)?
(1) integers
(2)positive real numbers
(3) positive rational numbers
(4)whole numbers
Answers
Answer:
(4) whole numbersStep-by-step explanation:
Given function:
c(x) = 400 + 25xwhere x is the number of complete video games.The complete video games can be expressed as positive integers or whole numbers, so the domain is whole numbers.
Correct choice is (4)
Answer:
Whole Number
Explanation:
Domain : The set of all the input values (i.e. the value of x ) in the function is called domain
The daily cost of production in a video game factory is calculated using c(x) = 400 + 25x
Cost expression : C(x) = 400 + 25x
Cost expression : C(x) = 400 + 25x
As x defines the number of complete video, since number of video cannot be negative.
1) Integers : integers are the numbers which can be positive, negative or zero, but cannot be a fraction
As, number of videos cannot be negative
so, x cannot be any integers
So, Integers is not the domain
2) Positive real numbers : Real numbers are the numbers which include both rational and irrational numbers.
As the x represent the complete number of video games, thus, x cannot be irrational
Hence, Positive real numbers is not the domain
3) Positive Rational Number : a number is expressed in the form of p/q then it is a rational number
The number of videos are in the complete number, so a fraction cannot be a complete number, thus, rational number cannot be a domain.
4) Whole Number : Whole numbers include natural numbers that begin from 1 onwards
As Numbers of videos are the complete number, and they are always positive, which is the defination of whole number, Domain is whole number
Combine like terms: m + 11g - 7g + 7m
Answers
Answer:
4g+8m
Step-by-step explanation:
7m+m=8m 11g-7g=4g
Amanda pours 3/4 of her water into Barbara’s empty bottle. Barbara then pours 3/5 of her water into Charlie’s empty bottle. Charlie then pours 1/2 of his water into David’s empty bottle. If David now has 18 ounces of water, how many ounces does Amanda still have?
Answers
Answer:
20 ounces of water
Step-by-step explanation:
Work backwards. David has 18 ounces, which is half of Charlie's. So, Charlie had 18•2=36 ounces. That was 3/5 of Barbara's water, so Barbara had 60 ounces. That is 3/4 of Amanda's water, so Amanda had 80 ounces. To find how much Amanda had left subtract 60 from 80 to get 20.
PLS HELP DUE TODAY,25 POINTS TO BRAINLIEST
Answers
Answer:
I think it’s H
Step-by-step explanation:
Answer:
The answer is H bacause it has the most number of colours
WHAT ORDER DO THESE GO IN HELPPPPPP AII!?
Answers
Answer:
They are correct. :)
Step-by-step explanation:
the Inequality is CORRECT, and for the last two switch them ! They are not in the correct order, this is the right answer
Katelyn drove 210 miles in 3 hours. Samantha
drove 540 miles in 8 hours,
Who drove faster? Explain your answer.
please help it’s for 21 points
Answers
Answer:
katelyn
Step-by-step explanation:
you divide distance by time to get rate, and katelyn has a faster rate because 210/3 is more than 540/8
Answer:
Katelyn drove faster
t=d/s
s=d/t
d=s*t
Step-by-step explanation:
s=d/t is what we are using to find the speed
Katelyn- 210/3=70
Samantha-540/8=67.5
70>67.5
Katelyn drove faster
Please help me with this
Answers
9514 1404 393
Answer:
Vertex: (-1, 4)
Maximum: f(-1) = 4
Increasing: (-∞, -1)
Decreasing: (-1, ∞)
Step-by-step explanation:
The equation can be written in vertex form by "completing the square."
First factor out the leading coefficient from the x-terms.
f(x) = -(x² +2x) +3
Then add the square of half the x-coefficient inside parentheses. Add the opposite of that amount outside parentheses.
f(x) = -(x² +2x +1) +3 +1
Write in vertex form.
f(x) = -(x +1)² +4 . . . . . . . compare to a(x -h)² +k
You can see that the vertex is (h, k) = (-1, 4), and that the vertical scale factor 'a' is negative. This means the vertex is the maximum and the parabola opens downward.
The function will be increasing to the left of the maximum, decreasing to its right.
__
Vertex: (-1, 4)
Maximum: f(-1) = 4
Increasing: (-∞, -1)
Decreasing: (-1, ∞)
Graph: see attached
what is the answer to 15-2x=-7x= solve for x
Answers
Answer:
-3 is what I got
Step-by-step explanation:
a:84
b:92
c:88
d:117
Answers
Answer:
117
Step-by-step explanation:
DUE SOON!
A spinner has 8 equal spaces. If you spin it, what is the probability that you 2 points
spin a number greater than 5?
Answers
Answer:
78
Step-by-step explanation:
probability of getting a 5 which is 78.
Another way to look at this is that if we know the probability of the result being 5, then the probability of it not being 5 is just one minus that probability. We know that 5 is just one out of the 8 possibilities, so
P5=18
So the probability of not 5 is
Pnot5=1−P5=1−18=78
I have big brain
Kelly saved 4/5% of her allowance.What is that percent expressed as a fraction and as a decimal
Answers
Decimal:0.8
Ok this is the last one :)
Answers
Answer:
12 53,9
Step-by-step explanation:
Answer:
12,53,9
Step-by-step explanation:
:PPP