Answers
Answer:
n= -5
Step-by-step explanation:
you’ll end up with 56
7n=56
Divide both sides by 7
Answer: 8
Related Questions
2/5 acres in 7/8 days
Answers
Given that,
A group of workers can plant 2/5 acres in 7/8 days.
To find,
The unit rate in acres/day.
Solution,
To find unit rate, divide acres and days as follows:
[tex]R=\dfrac{\dfrac{2}{5}}{\dfrac{7}{8}}\ \text{acres/days}\\\\=\dfrac{2}{5}\times \dfrac{8}{7}\\\\=0.45\ \text{acres/days}[/tex]
So, the unit rate is 0.45 acres/days.
For the time 8:35, rename one hour to 60 minutes. Add those minutes to the existing minutes.
A-10:20
B-6:40
C- 2:05
D- 9:55
Answers
Answer:
here we can talk if you want
At Mama’s Country Kitchen, they serve mashed potatoes and country fried steak. The average amount of mashed potatoes put on the plate is 4 oz. with a standard deviation of 0.2 ounces. If they decided to double their servings of mashed potatoes on each plate, what would be that standard deviation of a total of 10 servings of mashed potatoes?
a) 4
b) 10.24
c) 0.64
d) 3.2
e) 1.6
Answers
Answer:
b c
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
If the standard deviation for the original serving is .2, and they doubled the size, then the deviation would become .4. Then you multiply that by the ten servings to make 4.
Shaela can solve 20 one-step equation problems in 3 minutes. How many seconds does it take her to solve one problem?
Answers
Answer:
.67 secounds
Step-by-step explanation:20/3
3 * 60 = 180 seconds
180/20 = 9
Solution: 9 seconds
Evergreen Wildlife Preserve has 110 animals, and 66 of them are birds of prey. What percent of the animals are birds of prey?
Answers
Answer:
60%
Step-by-step explanation:
let ,x% is birds of prey
total animals=110
birds of prey=66
then,
x%of 110=66
x/100×110=66
110x/100=66
1.1x=66
x=66/1.1
x=60%
I'm not sure if this is correct.
Which statements about experimental probability are true? Select three options. Experimental probability has the total number of trials in the numerator and the number of times an event occurs in the denominator. Experimental probability is the same as theoretical probability. An experiment to determine probability will include a number of trials. A probability experiment will count the number of times an event occurs. Experimental probability can be written in the form of a ratio.
Answers
Answer:
C D E or 345
Step-by-step explanation:
Answer:
CDE
Step-by-step explanation:
what is the measure of ABC?
Answers
A 130
The other choices don’t make sense
30+(-46) =?
-45+(-25)=
Answers
Answer:
30+(-46)= -16
-45+(-25)= -70
Step-by-step explanation:
10 less than the product of
2
5
and x is the same as 8.
Please answer it’s due at 1pm
Answers
Answer:
x=45
Step-by-step explanation:
2/5x-10=8
2/5x=18
x=18÷2/5
x=18(5/2)
x=45
Answer:
(2/5 × x) - 10= 8
2/5x= 8+10
2x= 5 × 18
x = 90/2
x = 45
sum all the prime numbers less than 80 and write the answers.
Answers
Answer:
791
Step-by-step explanation:
Prime number is a number that is divisible only by itself and 1 .
prime numbers less than 80
2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79
therefore,
2+3+5+7+11+13+17+19+23+29+31+37+41+43+47+53+59+61+67+71+73+79
=791
Answer:
791.
prime numbers less than 80 are:
2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79
sum of these numbers are
2+3+5+7+11+13+17+19+23+29+31+37+41+43+47+53+59+61+67+71+73+79
= 791
how to make 6/12 in to decimal
Answers
Answer:
Step-by-step explanation:
If you have a calculator just put 6 / 12, and you will get your answer
If you don't have a calculator, do long division or you can simplify the fraction. Ex: 6/12 = 3/6 = 1/2; 1/2 = 0.5
Answer:
0.5
Step-by-step explanation:
You can reduce it to 1/2 which is equivalent to 50% or 0.5
Mariette bought a 6 pack of donuts to share with her friends
at school. The donuts cost $18.00 all together.
What is the unit rate for the donuts in ?
donut
1
What is the unit rate for the donuts
Answers
Answer: The unite rate is $3 per pack.
Step-by-step explanation:
The unit rate will the the cost of one pack of donuts.
If 6 packs is equal to $18 dollars, then to find the unit rate we will divide 18 by 6.
18/6 = 3
This means one pack of of donut will cost $3.
(0,5, 1, 17)
What is the number of subsets
What is the number of proper subsets
Answers
Answer:
16
Step-by-step explanation:
n=4
subset=2^n
=2^4
=16
d. (3+5i) (6-i) = Show your work.
Answers
Answer:
4i + 9 < simplified version
Step-by-step explanation:
3 + 5i + 6 - i =
4i + 9
(3+5i)(6-i)
step 1) 3•6 = 18
step 2) 3• -1i = -3i
Remember: if there is no coefficient, there is technically a 1 there so it’s easier to picture if you put that one in front of the variable.
step 3) 5i•6 = 30i
step 4) 5i• -1i= -5i^2
that turns into the expression 18-3i+30i-5i^2
then you can gather like terms (the -3i and 30i) 18+27i-5i^2
Remember that when you have and i that’s squared, it turns into -1.
So, the new expression is 18+27i-5(-1)
Remember to use order of operations and multiply first -5(-1)=5
18+27i+5
Then combine the constants (18 and 5)
The answer is: 23+27i
PLEASE HELP ASAP!!!
Makaila would like to walk at least 70 blocks over the next five days. She would like to increase the number of blocks she walks by two per day for each of the second and third days. Then, she wishes to level off so that the fourth and fifth days she walks only as far as she did on the third day.
a. If the amount that Makaila walks the first day is represented by x, then write expressions for each distance she walks the other four days.
Day 1= x Day 2 = Day 3 = Day 4 = Day 5 =
b. Find all possible values that Makaila could walk on the first day to reach her goal.
c. Assuming that Makaila walks a whole number of blocks on Day 1, what is the fewest number of blocks she could walk on this day and still meet her goal.
Answers
A) First day = x blocks
Second day = x + 2 blocks
Third day = x + 4 blocks
Fourth day = x + 4 blocks
Fifth day = x + 4 blocks
B) All possible values that Makaila could walk on the first day to reach her goal are; x ≥ 11.2
C) The fewest number of blocks she could walk on this day and still meet her goal is; 70 blocks
How to solve arithmetic sequences?A) We are told that the first day, she walks x blocks
Thus;
Second day = x + 2 blocks
Third day = x + 4 blocks
Fourth day = x + 4 blocks
Fifth day = x + 4 blocks
B) Total blocks = x + x + 2 + x + 4 + x + 4 = 5x + 14
Makaila would like to walk at least 70 blocks over the next five days. Thus, the equation is;
5x + 14 ≥ 70
Subtract 14 from both sides of this equation to get:
5x ≥ 56
Divide both sides of this equation by 5 to get:
x ≥ 11.2
C) She must walk greater than or equal to 11.2 blocks the first day to reach her goal.
assume she walks exactly 11.2 blocks the first day.
then her total walking based on the formula would be:
first day 11.2
second day 13.2
third day 15.2
fourth day 15.2
fifth day 15.2
total walked is 11.2 + 13.2 + (3 * 15.2)
this equals 24.4 + 45.6 which equals 70.0
Any number of blocks over 11.2 on the first day will result in a total greater than 70 blocks.
Read more about Arithmetic Sequence at; https://brainly.com/question/6561461
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Ahmad and Dante wash cars in the neighborhood and charge $5 per car. Last year, they worked very hard and were able to wash 450 cars in the year. They have done a little market research and found that for every $0.20 that the price is reduced, they can get 50 more customers.
2. a. Model the relationship between the number of $0.20 price decreases and the amount of money earned using an equation, table, and graph.
Answers
The model for the relationship between the number of $0.20 price decrease, x, to the amount of money earned, E, is presented by the following equation;
E = -10•x² + 160•x + 2250Please find attached the values of the model in the attached table and graph of the model.
How can the equation of the model be found?Let x represent the number of $0.20 price decrease and let E represent the total amount earned (the revenue), we have the following revenue equation;
E = Amount earned = Number of cars washed × The price to wash one carHowever;
When the number of cars washed = (450 + 50•x)
The price to wash one car = (5 - 0.2•x)
Therefore;
E = (450 + 50•x) × (5 - 0.2•x)Which gives the following equation;
E = -10•x² + 160•x + 2250Please find the attached table and graph created using the above equation for the amount earned per year.
From the graph, the maximum amount is earned when the price is reduced by $0.20, eight times to give;
Optimum price = 5 - 0.2×8 = 3.4
The optimum price = $3.4The number of cars washed at the optimum price = 850The maximum amount earned = $2890Learn more about how to find the revenue function here:
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6. In Florida, 94% of people have a TV, 71% have a TV and a DVD player. What percent of people that have a TV also
have a DVD player? In other words, what is the probability a person has a DVD player given that they own a TV?
A. 66%
B. 70%
C. 76%
D. 83%
Answers
Jessie can type 140 words every 4 minutes. Suppose she needs to type a report that will have 700 words. Write a proportion that could be used to predict the number of minutes it will take Jessie to type the report. Use x to represent the number of minutes.
Answers
Answer:
X = 20 minutes .
Step-by-step explanation:
One word: 4/140 = 1/35 minute .
700 words: X = 700x1/35 = 20 minutes .
(Multiplication)
ent.psonsvc.net/#/question/b1e947ad-6841-4a77-b0a5-7ea88c76f674/3df88b41-2ef2-4268-97a2-4dc1283afd2e
OB. (-2, 6)
Review
1 Unit 7.3 Checkpoint - Transformations in the Coordinate Plane(8.G.2.8.G.3.8.G.4)(22-23 / 4 of 10
O C. (2,-6)
Bookmark
OD. (6, 2)
XD
Rectangle WXYZ has coordinates at W(2, 2), X(2, 6), Y(4, 6), and Z(4, 2). If the rectangle was rotated 90° clockwise about the origin,
what would be the coordinates of X'?
Answers
The coordinates of X¹ will be (6,-2), if the rectangle was rotated 90° clockwise about the origin.
Given that, rectangle WXYZ has coordinates at W(2, 2), X(2, 6), Y(4, 6), and Z(4, 2) respectively. We have to calculate the coordinates of X¹ when the rectangle was rotated 90° clockwise about the origin.
Rotation generally helps us to align the figures in the direction along with a fixed point. To rotate the figure 90 degrees clockwise about a point, every point(x,y) will rotate to (y, -x). So, (y,-x) will be the rotation of the coordinates about 90° clockwise about the point.
So, we have to calculate the coordinate after rotation of X(2, 6). Let's suppose after rotation X changes to X¹ then, we have
X(2, 6)→X¹(6,-2) when the rectangle was rotated 90° clockwise about the origin.
Therefore, (6,-2) is the required answer.
Learn more in depth about rotation at https://brainly.com/question/4289712
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Given the function:
f (x) = (3 x + 4) minus (2 minus x)
Evaluate for f (5).
Answers
Hope this helps!
What is the reduce form of 10/ab+x
Answers
1.
[tex] \frac{10}{2 {ab}^{2} } \times \frac{ {a}^{2} {b}^{2}}{5}[/tex]
[tex] = \frac{5}{2a {b}^{2} } \times {a}^{2} {b}^{2} [/tex]
[tex] = \frac{5}{2a} \times {a}^{2} [/tex]
[tex] = \frac{5 {a}^{2} }{2a} [/tex]
Need this ASAP thanks
Answers
Answer:
the answer is A substitution
find a parameterization for a circle of radius 3 with center (-4,4,1) in a plane parallel to the yz plane. write your parameterization so the y component includes a positive cosine
Answers
Answer:
Following are the solution to the question:
Step-by-step explanation:
[tex]Radius= 3\\\\center= (-4,4,1)\\\\x(t)=-4\\\\y(t)=4+3 \cos \ t\\\\z(t)= 1+ 3 \sin \ t[/tex]
Find the distance between 6 and -2 on a number line
Answers
Answer:
8
Step-by-step explanation:
The distance between 6 and -2 is 8
(draw a number line and from 6 to -2 is 8 steps)
What is the equation of the line that is parallel to the line 5x + 2Y=12 and passesthrough the point (-2,4) ?
Answers
Answer:
y = [tex]-\frac{5}{2}[/tex]x - 1
Step-by-step explanation:
5x + 2y = 12
2y = -5x + 12
y = [tex]-\frac{5}{2}[/tex]x + 6
y = mx + b
4 = [tex]-\frac{5}{2}[/tex] ( -2 ) + b
4 = 5 + b
b = -1
y = [tex]-\frac{5}{2}[/tex]x - 1
Please answer the question as quickly as possible
Answers
Answer:
The answer would be x by 2 over the squared number.
Find the radius of a circle that has an area of 121 pi f2
Answers
Answer: r=11
Step-by-step explanation:
A=πr^2
A=121π
121π=πr^2
r^2=121
r=11
Evaluate the following expression: (10 - 3y) - 1 , if y = 3.
Answers
Answer: =0
Step-by-step explanation:
(10 - 3*3) - 1
(10 - 9) - 1
1-1
=0
Charlotte is looking for seashells on the beach. She is only going to look for the seashells in a 14 feet by 4 feet rectangular area. What is the area of the rectangle in square feet? *
Answers
Answer:
The answer is 56 square feet. Don't forget the square or else the answer is invalid :). good luck
Step-by-step explanation:
Jane took 10 min to drive her boat upstream to water-ski at her favorite spot. Coming back later in the day at the same boat speed took her 5 min. If the current in that part of the river is 10 km per hr, what was her boat speed in still water?
Answers
Answer: B = 15 kph or 15 kph
step by step
(b-5)*10=(b+5)*5
10b-50=5b+25
5b=75
b=15 kph in still water