4a + 7 =
please help me
READ THIS VERY VERY CAREFULLY.
Please and thank you.
Answer:
5
Step-by-step explanation:
59.95 ÷ 11.99=5
what is the nearest whole percent of 31?
Patty's Pavers has determined that a paver measuring 5 inches long has a z-score of +1 and a paver measuring 5.25 inches long has a z-score of +2.
Hi! I need Help!
What is the mean length of the pavers produced at Patty's Pavers?
4.25 inches
5.25 inches
4.75 inches
5.75 inches
Thank you!
Answer:
4.75
Step-by-step explanation: given x=5 inches Z-score =1 let 'X' be the variable in normal distribution z=+1 when x=5 inches.
The mean length of the pavers produced at Patty's Pavers is 4.75 inches. Thus, the correct option is C.
What is Z-score?A Z-score helps us to understand how far is the data from the mean. It is a measure of how many times the data is above or below the mean. It is given by the formula,
[tex]Z = \dfrac{X- \mu}{\sigma}[/tex]
Where Z is the Z-score,
X is the data point,
μ is the mean and σ is the standard variable.
The Z-score of +1 is,
(x-μ)/σ = 1
(5-μ)/σ = 1
5 - μ = σ
The Z-score of +2 is,
(5.25-μ)/σ = 2
(5.25 - μ)/σ = 2
5.25 - μ = 2σ
Substitute the value of the 'σ', therefore, standard deviation from the above,
5.25 - μ = 2(5 - μ)
5.25 - μ = 10 - 2μ
5.25 - 10 = -2μ + μ
μ = 4.75
Hence, the mean length of the pavers produced at Patty's Pavers is 4.75 inches. Thus, the correct option is C.
Learn more about Z-score:
https://brainly.com/question/13299273
#SPJ2
Also this one, please
A game has purple and orange pieces. The ratio of purple game pieces to total pieces is 7:16.
Select all the statements about the game pieces that are correct.
A.
The ratio of purple pieces to orange pieces is 9:7.
B.
The ratio of total pieces to orange pieces is 16:9.
C.
The ratio of total pieces to purple pieces is 16:9.
D.
There must be 9 more orange pieces than purple pieces.
Answer:
D
Step-by-step explanation:
it is true that there are 9 more orange pieces than orange pieces
15 Points and brainliest if you help me!!!
Write the prime factorization of 363 using exponents.
The prime factorization is_
Answer:
3 * [tex]11^{2}[/tex]
Step-by-step explanation:
I hope this helps :))
A soap factory randomly inspects 100 bars of soap to better identify problems that occur during the manufacturing process. The table below displays the possible problems and frequency for each.
Soap Problems
Frequency
Underweight
4
Impurities
2
Broken bar
3
None
91
Total
100
If the soap factory makes 5,000 bars of soap per day, how many of those bars would they expect to be broken?
They would expect 100 bars to be broken.
They would expect 150 bars to be broken.
They would expect 300 bars to be broken.
They would expect 450 bars to be broken.
Ms. Gartland bought x number of shirts for the new members of her chorus. The cost for x number of shirts, including $3.99 shipping, was $77.49. Each shirt cost $12.25. There was no sales tax on this purchase. Which equation could be used to find x?
A) 3.99(x + 12.25) = 77.49
B) 3.99x + 12.25 = 77.49
C) 12.25(x + 3.99) = 77.49
D) 12.25x + 3.99 = 77.49
help with 3 short questions
NEEEDDDD HEELPPP PLEASSEEE
Answer:
7\x
Step-by-step explanation:
need help with 7, 8, and 9 plz :]
Lilia's car can travel 125 miles
on 5 gallons of gasoline. How
many miles can her car travel on 3 gallons?
Answer:
75 miles
Step-by-step explanation:
125/5gallons = 25
25*3gallons = 75
What is 3/5+3/4? Whats the totallt
Answer:
27/20
(1.35 decimal form)
Step-by-step explanation:
make the common denominator 20, since it is the LCM
12/20+15/20= 27/20
I will mark brailiest
Answer:
Step-by-step explanation:
3 plz ad me as brainlist
Students surveyed boys and girls separately to determine which sport was enjoyed the most. After completing the boy
survey, it was determined that for every 3 boys who enjoyed soccer, 5 boys enjoyed basketball. The girl survey had a
ratio of the number of girls who enjoyed soccer to the number of girls who enjoyed basketball of 7:1. If the same
number of boys and girls were surveyed and 90 boys enjoy soccer, how many girls each sport?
Please help me and show how to solve this the best answer will get brainlesest
Please help me with this. I will give brainliest.
Answer:
(X-6, y-3)
Step-by-step explanation:
From C to C’ you have to go three units down which is your Y (negative) and 6 units left which is your X (negative)
sorry for annoying you all... I'm just not smart y'know-
Answer:
7:4
Step-by-step explanation:
7:4
f m
7=female
4=male
Answer:
Answer down below!!
Step-by-step explanation:
Hey, first of all, dont be discouraged! It was tough learning ratios too
Anyway.
If there are 4 male birds for every 7 female birds, your ratio would be
4:7
Or as
4 to 7
Hope this helps!
(repost) Help Please I will Give brainliest If Correct!!
Answer:
There are about 7 x 10^6
Step-by-step explanation:
3.5*2029249= 7102347
rounds to 7000000= 7 x 10^6
Answer:
7.102347 times [tex]10^{6}[/tex].
Step-by-step explanation:
Alright. This is an inanely large amount of words, as a drill for scientific notation. The first step is, since the mystery book has 2,029,242 words, to turn this into a single digit multiplied by a power of ten - 2.029242 times [tex]10^{6}[/tex] (apologies for the weird font change in the middle). The science fiction book is 3.5 times larger - multiply 2.029242 on a calculator (unless you really like suffering for some reason; then do it by hand) - it comes out as 7.102347. Thus, the answer is 7.102347 times [tex]10^{6}[/tex].
Just help me x.x
And pls explain how you got the answer .-.
Step-by-step explanation:
Distribute -1 across
-t-8=-7.1
-8+7.1=t
t=-0.9
Answer:
-0.9
Step-by-step explanation:
1
Distribute
-1(t+8) = -7.1
-t - 8= -7.1
2
Add 8 to both sides of the equation
3
Simplify
4
Divide both sides of the equation by the same term
5
Simplify
Ahmad made 4 identical necklaces, each having beads and a pendant. The total cost of the beads and pendants for all necklaces was $17.60. If the beads cost $1.80 for each necklace, how much did each pendant cost?
Answer:
9.77, i rounded so this should be right.
Plz help me and explain too thanks
Two questions in one.
Question 1: Josiah ran ⅘ of a mile in 1/10 of an hour. How long will it take Josiah to run 3 ½ miles?
Question 2: You can mow ½ lawns in ⅗ of an hour. How many laws can you mow in 1 ¼ hours? Explain your answer and show your steps/thinking.
Which is the independant variable and which is the dependant variable?
For every cupcake, c, that she sells, she raises money, m, for her club.
he figure PQRSTU represents the shape of the parking lot at a shopping mall. What is the area of the parking lot?
A.
834 square feet
B.
918 square feet
C.
984 square feet
D.
1,068 square feet
Yall know this BS
Answer:
I think is c
Step-by-step explanation:
George is putting trim around his rectangular deck, including the gate. He will need 46 feet of trim to do the entire deck. If the deck is 15 feet long, how wide is the deck?
A.
6 feet
B.
16 feet
C.
8 feet
D.
23 feet
Answer:
C: 8 feet
Step-by-step explanation:
You have to find the parameter.
To do that you add all the side lengths together.
15+15=30 now you have to subtract 30 from 46 to find how much room is left.
46-30=16 now divide your answer by 2 to get the 2 remaining sides of the deck.
16/2=8 so the answer is 8!
Answer:
C
Step-by-step explanation:
find the volume of the cylinder.
Either enter an exact answer in terms of \piπpi or use 3.143.143, point, 14 for \piπpi.
units^3
3
Answer: pie r^2 h
where pie is 3.143... , or 14
r- radius
h- height
Step-by-step explanation:
suppose let the cylinder height =3 and radius =4
volume of cylinder =pie*r^2*H
= 3.143*4^2*3
=150.864 m^3
helpppppppppppppppppp
PLEASE HELP I WILL GIVE YOU BRAINLIEST
Answer:
Step-by-step explanation:
Mayebe. E
Help Due at 11:59 TONIGHTTTT
Answer:
c is number one
and number 2 is e
Step-by-step explanation:
separate them then add
10
[tex]10 + 15 - 13 = 12[/tex]
[tex] - 7 -7 = - 14[/tex]
-14w+12
do the same for number two and you get 18a-8b-1
Answer: C, E, C, E, A