Step-by-step explanation:
Here,
21-4z=14-8z
-4z+8z=14-21
4z=-7
Triangle PQR has vertices P(-2,8), 0(2,4), and R(4.6). Which best describes triangle PQR?
a right triangle with PQ QR
a right triangle with PQ PR
an isosceles triangle with PQ=QR
an isosceles triangle with PQ=PR
Answer:an icosceles triangle with pq qr
Step-by-step explanation:
If a pound of turkey costs $0.82, how much will n pounds cost?
what is the cos 30°?
temperature. ?????? don't understand
is 3 square root / 2
Write an inequality for the statement. The sum of a number and nine is less than thirty.
Answer:
x + 9 < 30
"a number" is x and it's the sum (addition) of that and 9 which is less (<) than 30
can I get an answer please
Answer:
the second one I'm pretty sure
Step-by-step explanation:
Answer:
its definitely B
Step-by-step explanation:
Help!!!
The bike store marks up the wholesale cost of all of the bikes they sell by 50%. Andre wants to buy a bike that has a price tag of $250. What was the wholesale cost (before the price markup) of this bike? Round to the nearest hundredth (cent). Remember your units ($ sign).
The bike store marks up the wholesale cost of all of the bikes they sell by 50%. Andre wants to buy a bike that has a price tag of $250. If the bike is discounted (on sale) by 40%, how much will Andre pay (before taxes)?
With a coupon, you can get a pair of shoes that normally costs $184 for only $114. What percentage was the discount? Round to the nearest HUNDREDTH. Remember your units (% sign).
9514 1404 393
Answer:
a) $166.67
b) $150
c) 38.04%
Step-by-step explanation:
a) The selling price (s) is the sum of the wholesale price (w) and the markup (m).
s = w + m
We have ...
250 = w + 0.50×w
250/1.50 = w = 166 2/3 ≈ 166.67
The wholesale cost of the bike is $166.67.
__
b) The price of the bike after the discount is 100% -40% = 60% of the tagged price:
0.60 × $250 = $150 . . . . . the discounted price
(Aside: we note this is less than the wholesale price, so the store is taking a loss on the bike when it is discounted this much.)
__
c) The percentage change is found by ...
percent change = ((new value)/(old value) -1) × 100%
= (114/184 -1) × 100% = (0.619565 -1) × 100% ≈ -38.04%
The discount is about 38.04%.
Angle relationships, find the measure of angle “b”.
Answer:
1: b= 68 2: b=42 3: b=78 4: b=80
Step-by-step explanation:
whenever the Angle is congruent it will be the same
3 consecutive integers for 273
Answer:
90, 91 and 92
Step-by-step explanation:
Given
Consecutive integers = 273
Required
Find the integers
The question seem to be incomplete. However, I'll assume we're dealing with sum.
Let the smallest integer be y.
So,
y + y + 1 + y + 2 = 273
Collect like terms.
y + y + y = 273 - 2 - 1
3y = 270
Divide both sides by 3
y = 90
Hence, the integers are 90, 91 and 92
In the same circle or in congruent circles:
Congruent central angles determine, arcs
Congruent central angles determine blank
arcs,
Options. Congruent minor
Distinct minor
Equidistant
Infinitely many
Three
Answer:
congruent minor
Step-by-step explanation:
two congruent circle are corresponding minor
PLEASE HELP
Simplify the expression 5^3+3(5-3)
A.137
B.131
C.27
D.21
Answer:
the correct answer is 131
Step-by-step explanation:
5^3 +3(2)
= 125 +6
=131
x% of 31 is 3.317, 4,407 is 39% of y
Answer:
x=10.7, y=11300
Step-by-step explanation:
x%of 31 = 3.317
x/100×31=3.317
31x/100=3.317
31x= 3.317×100
x= 3.317 ×100/31
x =10.7
4407= 39% of y
4407= 39/100 × y
4407 =39y/100
4407×100=39y
4407 × 100/39=y
11300=y
Simplify
4(1 + 9x) thank you
Answer:
4+36x
Step-by-step explanation:
you multiply the number on the outside of the parentheses with the numbers in the inside of the parentheses.
4 times 1 = 4
4 times 9x = 36x
36x+4
Ashley deposit $100 into a savings account. The account is 2% compounded annually. What is the balance in Ashley's account after 2 years?
Answer:
104.40
Step-by-step explanation:
100 * 2% = 102
102 * 2% =104.4
the commutator of S3
Is the number of increments in part B positive or negative?
positive
Step-by-step explanation:
Answer:
The number of increments is positive.
Step-by-step explanation:
got it on edmentum :)
Jonny makes $15 per hour working at Target. He gets a bonus
at the end of the month for $85. This month, he made a total of $685.
Write an equation to show how many hours he worked. *
Step-by-step explanation:
he get one hour=15$
he get bonus end of the month=85$
total 685$- bonus 85$=600$600$÷one hour 15$= 40 hoursHey guys this is my new account it used to be SimpForLucy SimpForKirishima but now ill just be doing normal stuff for now on since iv'e been a disgrace to you guys
Suppose a purchasing manager wants to determine the average cost of machined metal parts in the US. How many machined metal parts would they have to sample? The manager wants to be 90% confident with a margin of error of 6.74. Suppose that the costs of the metal parts ranges from 93 to 220. When entering the values into JMP, round the planning value for the standard deviation to four values after the decimal. Round final answer as you normally would.
Answer:
they will have to sample 60 machined metal parts
Step-by-step explanation:
Given that;
Margin of Error E = 6.74
at 90% Confidence Interval, z = 1.645 { from table }
Range R = maximum range - minimum range = 220 - 93 = 127
standard deviation σ = R / 4 = 127/4= 31.7500
How many machined metal parts would they have to sample n = ?
to get our sample size, we use the following formula
n = [ zσ / E ]²
we substitute in our values
n = [ 1.645 × 31.7500 / 6.74 ]²
n = [ 52.2287 / 6.74 ]²
n = [ 7.7490 ]²
n = 60.047 ≈ 60
Therefore, they will have to sample 60 machined metal parts
You can use the margin of error with the z value and standard deviation to get the result.
The number of metal machine parts would be 60.
Given that:The confidence level needed is 90%The margin of error is 6.74The cost of metal parts ranges from 93 to 200To find:The number of machined metal parts that have to be sampled.
Finding the range of the distribution:Range = Max. value - min. value = 220 - 93 = 127
Finding the standard deviation:The standard deviation is approximately the quarter of the range of the distribution.
Thus, [tex]\sigma = 127 \div 4 = 31.75[/tex]
For 90% confidence, the z value is 1.645 (from z tables)
Thus, from the formula for size of sample, we have:
[tex]n = (\dfrac{z\sigma}{E})^2 = (\dfrac{1.645 \times 31.75}{6.74})^2 = (7.749)^2 \approx 60[/tex]
The number of metal machine parts would be 60.
Learn more about sample size here:
https://brainly.com/question/25894237
Find the value of x. Then find the measure of each labeled angle.
You spin the spinner and flip a coin. Find the probability of the compound event. The probility of spinning one, and landing on heads is:
Answer:
You have to specify the question more. There's not enough information. Like how many numbers does the spinner have? I'll help if you could specify it more
Step-by-step explanation:
Answer:
Multiply 1/2 by 1/5 and you get 1/10
Step-by-step explanation:
I need help I'm in 6th grade I use to have all f but I changed it into a,b,c can someone plss help so I don't fail
Answer:
um what
Step-by-step explanation:
Please help me with my homework!
Also, I choose B randomly, but that doesn't mean it's correct because it's green, it turns green for all answers. So, please don't think its B because it turned green.
Answer:
d, 6 units
Step-by-step explanation:
its 6 units im pretty sure. hope this helped
If -x - 3y = -8 and - 7x + 5y = 1 are true equations, what would be the
value of 6x – 8y?
In the diagram below, AB is parallel to CD. What is the value of x?
B
459
A. 30
B. 45
C. 60
D. 135
Answer:
Could you show the diagram?
a ferry boat leaves the dock once per hour your waiting time for the next ferry will follow a uniform distribution from 0 to 60 minutes
Melanie got a new employer pay job through the Jones recruitment agency the job pays $52,400 per year and the agency fee is equal to 25% of one years pay how much must Melanie‘s employer pay the agency
Answer:
the amount that pay to the agency is $1,091.67
Step-by-step explanation:
The computation of the amount that pay to the agency is as follows:
= Amount paid per year ÷ number of months × 25%
= $52,400 ÷ 12 months × 25%
= $1,091.67
Hence, the amount that pay to the agency is $1,091.67
We simply applied the above formula so that the correct amount could come
the step function f of x is graphed what is the value of f of 0?
Answer:
AYYYYYYYYYYYY YO IS SNOOP DOGG
Step-by-step explanation:
Answer:
-2
Step-by-step explanation:
What is 2/3÷6 over five
you are a city planner and I have been asked to redesign a park . Currently the park is 500 feet long and 300 feet wide. Q1) calculate the scale factor of the drawing. Q2) The city would like sidewalks placed on the diagonals of the park. How long will the sidewalks be in the scale drawing? Q3) The diagonals meet at a central fountain(point g) they would like to add a playground that is equidistant from the fountain and corner C. At which coordinate with the center of the playground be located? Q4) The city would like a running trail through the park perpendicular to sidewalk AC. What would the slope of the trail be? Q5) what is the equation of line BD in point slope form ? Please help me ASAP.
Answer:
Q1 5:3
Step-by-step explanation:
500 / 100 = 5
300 / 100 = 3
500:300 simplified to 5:3
Please help!!!!!!!!!!
Answer: angle 1 = 51, angle 2 = 18, angle 3 = 123, angle 4 = 39
Step-by-step explanation:
72+57=129 180-129= 51 degrees for 1
90-72= 18 degrees for 2
180-57= 123 degrees for 3
123+18=141 180-141= 39 degrees for angle 4