Answers
Answer:
8/21
Step-by-step explanation:
-1/3 + 5/7=1×7 =-7/21 +15/21
- × -
3. 7
-7/21 + 15/21= -7+15 = 8/21
-----
21
Related Questions
what is an equivalent ratio to 9:1
Answers
Answer:
Equivalent ratio of 9:1 is 18:2.
Mark me as the brainlist
Answer:
18:2 is equivalent
pretty sure
After two semesters of course work, a student has completed 32 credit hours of course work with a grade point average of 3.15. What grade point average will the
student need to complete in order to raise their cumulative grade point average to 3.2, if the student is taking 14 credit hours of graded course work this semester
(third semester)?
Answers
Using weighed average, it is found that the student will need a GPA of 3.31.
To find a weighed average, each value is multiplied by it's weight.
For the student's average, we have that:
GPA of 3.15 with a weight of 32.GPA of x with a weight of 14.We want the mean to be 3.2, thus:
[tex]\frac{3.15(32) + 14x}{32 + 14} = 3.2[/tex]
[tex]3.15(32) + 14x = 46(3.2)[/tex]
[tex]14x = 46(3.2) - 32(3.15)[/tex]
[tex]14x = 46.4[/tex]
[tex]x = \frac{46.4}{14}[/tex]
[tex]x = 3.31[/tex]
The student will need a GPA of 3.31.
A similar problem is given at https://brainly.com/question/16233451
What is the slope of A line parallel to the line whose equation is 6x+9y=216
Answers
A volunteer at the zoo is responsible for feeding the animals in 15 exhibits in the reptile house. This represents 20% of the total exhibits in the reptile house. How many exhibits are in the reptile house.
Answers
The 75 exhibits are in the reptile house.
we have given that,
A volunteer at the zoo is responsible for feeding the animals in 15 exhibits in the reptile house.
We have to determine how many exhibits are in the reptile house.
Therefore we have
if 15 exhibits = 20% of total exhibits,
What is the percentage?
A percentage is a number or ratio expressed as a fraction of 100.
then 15/20% = 75 total exhibits in the reptile house
We can check the answer,
75 x 20% = 15
Therefore the 75 exhibits are in the reptile house.
To learn more about the percentage of visits:
https://brainly.com/question/24304697
#SPJ1
Alex is making string bracelets for his friends he has 5 meters of string to make each bracelet. How many bracelets can Alex make?
Answers
Answer:
5
Step-by-step explanation:
Answer:
5 bracelets
Step-by-step explanation:
PLEASE MARK AS BRAINLIEST!!!!!Can somebody help me with social studies since nobody will?
Answers
Answer:
Yes! Sure I will, just follow me and I will follow you!
Then I get the notifications of your doubts.
Step-by-step explanation:
I love helping
Will get 70 points if you help me
Answers
Answer:
The x-intercept of Line A is (3,0) and the x-intercept of Line B is (4,0).
Therefore the x-intercept of Line A is -------------- the x-intercept of Line B
Step-by-step explanation:
What is the next number in the sequence? (4, 11, 25, 53, 109, ?)
Answers
Answer:
221
Step-by-step explanation:
109×2+3=221, pattern is x2+3
--
4×2+3=11
11×2+3=25
25×2+3=53
53×2+3=109
PLEASE HURRY NO LINKS PLEASEEEEEE
Answers
Answer:
64
Step-by-step explanation:
-4(m-n)^2
when m=3 and n=-1
-4(3-(-1))^2=
-4(3+1)^2=
-4(4)^2=
-4(16)=-64
correct answer is -64
please mark this answer as brainlist
Sam bowled three games with scores of 210, 185, and 190. He needs to have a four-game average of 205 to qualify for an elite bowling league. What score does he have to bowl on the fourth game to have the average of 205 that he needs?
Answers
Answer: 235
Step-by-step explanation:
Total score if he average 205 = 205 * 4 = 820
Score needed on 4th game = 820 - 210 -185 - 190 = 235
solve each proportion
how do you do this?
Answers
Answer:
solve each proportion
how do you do this?
Step-by-step explanation:
(5 - 2i) + (-4 + 81)
O A. 5i
B. 7i
O c. 1-6
D. 1 + 6
Answers
Answer:
82 - 2i
Step-by-step explanation:
(5 - 2i) + (-4 + 81)
5 - 2i + 77
= 82 - 2i
1 + 6i
we open the brackets to give us
5 - 2i - 4 + 8i
collecting like terms, we have,
-2i + 8i + 5 - 4
6i + 1
or
1 + 6i
For a 4-units class like Statistics, students should spend average of 12 hours per week studying for the
class. A survey was done on students, and the distribution of total study hours per week is bell-shaped with
a mean of 15 hours and a standard deviation of 3 hours.
ic Success
raries Online
Use the Empirical Rule to answer the following questions.
and
hours on this
ft Teams
gs
a) 68% of the students spend between
class.
b) What percentage of the students between 6 and 18 hours on this class?
c) What percentage of the students above 9 hours?
Answers
) 68% of the students spend between
class.
[tex] \frac{68}{100} = \frac{17}{25 } [/tex]
What is the slope of the line in the graph?
On a coordinate plane, a line with negative slope goes through points (0, 1) and (4, negative 2).
Negative four-thirds
Negative three-fourths
Three-fourths
Four-thirds
Answers
Answer:
the slope for (0,1)(4,-2) is -3/4
Answer:
B. Negative three-fourths
Step-by-step explanation:
Write the equation of a line that
goes through the points (4,4) and
(-1,9).
Answers
Answer:
y+2 = (-1/2)(x-3)
Step-by-step explanation:
HELP PLSSSS!!! I will mark you as brainlyist
Answers
Given that the angle with m < 165° and m< x° are supplementary angles whose sum add up to 180°,
We can add their sum by establishing the following formula:
m < 165° + x° = 180°
Subtract m< 165° from both sides
m < 165° — m < 165° + x° = 180° — m < 165°
x° = 180° — m < 165°
x° = 15°
Therefore, the value of x = 15 °
Find the unit price $3.30 for 15 bananas
Answers
Answer:
0.22 cents each
Step-by-step explanation:
Mrs. Sampson bought 8
packages of clay for a total of $32
for an upcoming art project. At
this rate, how much would 14
packages cost?
Answers
Answer:
$56
Step-by-step explanation:
cost of 8 packages of clay = $ 32
cost of 1 package of clay = 32 / 8 = $4
cost of 14 packages = 14*4 = $ 56
What is the greatest common factor of 8 and 6
Answers
Answer: 2
Step-by-step explanation:
A loan is payed off in 15 years with a total of 250,000. It had 4% interest
Answers
Answer:
5.2%po joke Lang Hahahahahahah
Answer:
$137,339.88
Step-by-step explanation:
Use the compound interest formula and substitute the values given:
$250,000=P(1+0.0412)12(15)
Simplify using order of operations:
$250,000=P(301/300)180
Solve for P:
P=$250,000(301/300)180≈$137,339.88
Maureen paid 198.75 for a stereo system, plus a sales tax of 15.90. approximately what is the sales tax percent?
How to solve??
Answers
Answer:
The answer to your question is 13.5%
Step-by-step explanation:
A bag contains 3 black marbles and 5 white marbles. Paul picks a marble at random from the bag and replaces it back in the bag. He mixes the marbles in the bag and then picks another marble at random from the bag. Calculate the probability that Paul picks:
A. Two black marbles
B. Black marble in his second draw
Answers
Answer:
id go with B.
you'd get a mix because its bound to happen.
Use the midpoint formula to find the midpoint of (4, -2) and (6, 10)
Answers
(5,4) that is your answer
Answer:
the mid point in x axis is half of 6-4 which =1
the mid point in y axis is half of 10-(-2) which=6
hence he midpoint is (1,6)
A politician has $4,200 to buy TV advertisements. If each advertisement costs $700, how many advertisements can the politician buy?
Answers
Answer:
He can but 6 ads
Step-by-step explanation:
how i thought of it was what times 700 hundred gives me 4,200 and i used the math that i have been taught and put together 6
Answer:
8
Step-by-step explanation:
4200÷7=
.................................
16 teams of hockey are playing. each team plays two matches against another team. how many matches are played
Answers
Answer:
240
Step-by-step explanation:
he total cost of 5 doughnuts and 6 cookies at a bakery is $11.95. The cost of each cookie is $0.95.
Select the equation and its solution that can be used to determine the cost, x, of 1 doughnut.
Answers
Answer:
x=1.25
Step-by-step explanation:
Answer:
($0.95 * 6) + (5x) = $11.95
The cost of one donut (x) = $1.25
Step-by-step explanation:
I hope this helps!
Help????????????????
Answers
Answer:
its gonna be b
Step-by-step explanation:
I am super confused about my stats homework. Every time I get the question wrong, it gives me a new set of numbers. Help!
Answers
What is the slope of the line represented by the equation y = 4/5x - 3
Answers
Answer:
4/5
Step-by-step explanation:
the slope is the number next to x
y=mx+b is a model we use in math to find the slope. each letter is a place marker for different numbers.
slope is where the m is in the problem
in your case 4/5 is found in the same spot as m.
HELP THIS IS DUE IN A FEW HOURS!!!
Emery borrowed money from her brother to buy a new phone and is paying off a fixed amount each week.
After 2 weeks, she will owe $456, and after 5 weeks, she will owe $228.
Create an equation in point-slope form to represent this situation.
Answers
Step-by-step explanation:
you can see the full answer in Quizlet
