9514 1404 393
Answer:
9 7/12
Step-by-step explanation:
12 is a suitable common denominator.
(7 3/4) + (1 5/6) = (7 9/12) + (1 10/12) = (7+1) +(9/12 +10/12)
= 8 + 19/12 = 9 + 7/12 . . . . . . change 19/12 to 1 7/12
= 9 7/12
_____
My calculator works with mixed numbers very nicely, as many graphing calculators do.
Step-by-step explanation:
convert the fractions to whole numbers. the first one is:
4 × 7, then add 3, or 31/4.
the second one is 6 × 1, then add 5, or 11/6.
then you have 31/4 + 11/6. then you make a common denominator, which would be 12 (6 and 4 both go into 12).
3 × 31 = 93, so then the first fractions becomes:
93/12
second fraction becomes 11 × 2 = 22, then:
22/12.
so now you have 93/12 + 22/12 = 115/12, or 9 7/12
If I have 8 cans of soup and I gave 1/2 to sue and 1/4 to mark how many do I have left
Answer: 2 cans of soup left.
Step-by-step explanation:
1/2 of 8 = 4.
1/4 of 8 = 2.
4 + 2 = 6, so you are giving 6 cans of soup away. 8 - 6 = 2. In conclusion, you have 2 cans of soup left.
Angle y is 36 degree.what is angle x
Answer:
do u have a picture or smth? there is not enough info
perimeter ILL MARK BRAINLY
Answer:
The perimeter is 24 in2
Step-by-step explanation:
You have to add up all of the sides together
Answer:
the answer 24
Step-by-step explanation:
P= 10+6+8=24 in
because perimeter is just adding
Andrew had 30 dollars to spend on 3 gifts. He spent 8
1
4
dollars on gift A and 5
4
5
dollars on gift B. How much money did he have left for gift C?
Andrew has 17 dollars left for gift c
Out of 20 cookies, 4/ 5 are chocolate chip. How many cookies are chocolate chip?
Answer:
16 cookies. Try your best.
Answer: 16
Step-by-step explanation:
We can solve this by using the equation: 4/5 x 20 = y
(y is the answer)
Now we can solve it. You can just solve 4/5 x 20, or if you like using decimals you can change it to 0.8 x 20, becaues 4/5 is equivalent to 0.8.
0.8 x 20 = 16.
Therefore, out of the 20 cookies, 16 are chocolate chip.
There are 2.54 centimeters in 1 inch. There are 100 centimeters in 1 meter. To the nearest inch, how many inches are in 12 meters?
Answer:
12 meters = 472.441 inches
~Hope this helps~
A _____________ is a function that describes a change in the position, size, or shape of a figure.
Answer:
force
Step-by-step explanation:
I need help please I will give brainlest to first person that answers (please hurry)
Answer:
Less than 4 is 1,2,3
So 3/12=1/4
Dan is fertilizing his garden. The garden is in the shape of a rectangle. it's length is 16 feet and it's width is 13 feet. suppose each bag of fertilizer covers 26 square feet. How many bags will he need to cover the garden?
Answer:
Step-by-step explanation:
16ft(13ft)(b/26ft^2)=8b
So he’ll need 8 bags
PLEASE PLEASE HELP
What is the slope of the line that passes through the points (-1, 2) and (-4, 3)?
을
-3
[tex] \begin{cases} (-1, 2) \\ (-4, 3) \end{cases}[/tex]
Calculate and find the slope by using rise over run formula with two given points.[tex]m = \frac{dy}{dx} = \frac{y_2-y_1}{x_2-x_1}[/tex]
Substitute the coordinate points in.
[tex]m = \frac{3 - 2}{ - 4 - ( - 1)} \\ m = \frac{1}{ - 4 + 1} \longrightarrow \frac{1}{ - 3} \\ m = - \frac{1}{3} [/tex]
Hence, the value of m is - 1/3.
Slope-intercept[tex]y = mx + b \\ \sf{where \: \: m \: \: = \: \: slope}[/tex]
Answer[tex] \large\boxed{m = - \frac{1}{3} }[/tex]
As one object gets closer to another object the force of gravity will increase?
Answer:
no
Step-by-step explanation:
gravity is relevant to when something is being affected by the gravitational pull on earth, or any other planet. for example, i throw an apple into the air. and it comes back down, as newton said. what must come up, must come down. because of gravity, two objects being closer together does not affect the gravitational pull whatsoever. and the force of gravity doesn't change. as gravity just works on it's own, independent of the object, not dependent on the object. however certain objects will fall abit faster than others.
What is the solution to this inequality? 7x +18 > -3
x<-3
x<3
x>-3
x>3
Step-by-step explanation:
7x + 18 > -37x > -3 -187x > -21x > -21÷7x > -3MARK ME AS BRAINLISTPLZ FOLLOW METhe lifetimes of a certain brand of light bulbs are known to be normally dsitributed with a mean of 1700 hours and standard deviation of 400 hours. A random sample of 64 of these light bulbs is taken. The probability is 0.20 that the sample mean lifetime is more than how many hours?
A. 1652.
B. 1725.
C. 1752.
D. 1670.
Answer:
1742 hours
Step-by-step explanation:
To solve this question, we need to understand the normal probability distribution and the central limit theorem.
Normal probability distribution
When the distribution is normal, we use the z-score formula.
In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the zscore of a measure X is given by:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.
Central Limit Theorem
The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]s = \frac{\sigma}{\sqrt{n}}[/tex].
For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.
Single light:
Mean of 1700 hours and standard deviation of 400 hours, which means that [tex]\mu = 1700, \sigma = 400[/tex]
Sample of 64:
This means that [tex]n = 64, s = \frac{400}{\sqrt{64}} = 50[/tex]
The probability is 0.20 that the sample mean lifetime is more than how many hours?
This is the 100 - 20 = 80th percentile, which is X when Z has a pvalue of 0.8. So X when Z = 0.84
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
By the Central Limit Theorem
[tex]Z = \frac{X - \mu}{s}[/tex]
[tex]0.84 = \frac{X - 1700}{50}[/tex]
[tex]X - 1700 = 50*0.84[/tex]
[tex]X = 1700 + 50*0.84[/tex]
[tex]X = 1742[/tex]
Solve y^3 =-28 where y is a real number.
Simplify your answer as much as possible.
Answer:
YOU GOT THIS!!
Answer:
y=[tex]\sqrt{28}[/tex] i
Step-by-step explanation:
Use the figure to answer the following question.
1.3 m
0.5 m
2.4 m
What is the area, in square meters, of the figure?
O A. 0.78 square meters
OB. 0.6 square meters
C. 1.56 square meters
O D. 1.2 square meters
Answer:
The answer to the equation was c so yes you are right:)
how do you solve 0.7n-1.5+7.3n=14.5
Answer:
n = 2
Step-by-step explanation:
Answer:
n = 2
Step-by-step explanation:
0.7n-1.5+7.3n=14.5
Add like terms
(0.7n + 7.3n) + (-1.5) = 14.5
8n -1 .5 = 14.5
Add 1.5 to both sides.
8n =1 6
Divide both sides by 8.
n = 2
Use I = PRT to solve.
(time is in years)
1 = $270,000
P = $150,000
R = 12%
Find T.
Answer:
Time T = 15 year
Step-by-step explanation:
Given:
Interest I = $270,000
Principal P = $150,000
Rate R = 12% = 0.12
Find:
Time T
Computation:
I = PRT
270,000 = (150,000)(0.12)(T)
270,000 = (18,000)(T)
Time T = 15 year
y is directly proportional to x.
(y = 44
when
x = 4.)
Find a mathematical model that represents the statement. (Determine the constant of proportionality.)
Answer:
11
Step-by-step explanation:
Trust me
Answer:
Step-by-step explanation:
directly proportional means it is in the form
y=kx, given y=44 and x=4
44=4k
k=11
22 is 1196 of what number?
Enter your answer in the box.
Answer:
It is 1174.
Step-by-step explanation:
A stack of 500 pieces of paper is 1.9 inches tall. How thick is each piece of paper?
Answer:
0.00375 inches thick
Someone plz help answering this (mastery test)15points if u don’t know don’t answer real talk
Answer:
6 ? (i think)
Step-by-step explanation:
write 2/5 X 3/7 in simplest form brainliest if correct
Answer:
6/35
Step-by-step explanation:
2/5x3/7
Multiply Numerators and Denominators
= 6/35
You can't further simplify so the answer is 6/35.
Answer:
6/35
Step-by-step explanation:
hope this helps, would consider downloading photomath
y=3x/5-6 in standard form
Answer:
The standard form is 3x-5y-30=0
If these two shapes are similar, what is the measure of the missing length c?
c=__kilometers
Answer:
3
Step-by-step explanation:
6 ÷ 2 = 3
1 × 3 = 3km
I hope this is actually right ^-^
I'm so confused what is the answer plz?
Answer:
option b .
yes, by SAS.
.............
1+4=5
1+5=6
1+6=7
8+7=?
Answer:
8+7=15
Step-by-step explanation:
Just add 8+7 which will equal 15
Answer:
The answer is 15
Step-by-step explanation:
Hoped this helped!
A group of students with normally distributed salaries earn an average of 6800 with a standard deviation of $2500. Find the cutoff for the salary that corresponds to the lower 25% of all salaries
Answer: $5115
Step-by-step explanation:
The following information can be gotten from the question:
Mean = 6800
Standard deviation = 2500
We will then find the Z score of the 25th percentile which will be -0.674.
Therefore, the cutoff for the salary that corresponds to the lower 25% of all salaries will be:
= 6800 - 0.674 × 2500
= 6800 - 1685
= 5115
The cutoff is $5115
Factor to write an equivalent expression for -9x+15y
Answer:
Step-by-step explanation:
-9x +15y = 3(-3x +5y) = -3(3x - 5y)
The required equivalent expression for the given expression -9x + 15y is 3(-3x + 5y).
What is the Factorization?Factorization, also known as factoring, is the breakdown of one element into a product of other objects, or factors, which when multiplied together generate the original. For example, the number 21 factors into primes as 3 × 7, and the polynomial x² − 9 factors as (x+3)(x-3).
The given expression is given as follows:
-9x + 15y
It is required to find the factorization of the given expression.
As per the question, we have
-9x + 15y
To factor -9x + 15y, we can first factor out the greatest common factor (GCF) of -9 and 15, which is 3:
-9x + 15y = 3(-3x + 5y)
Therefore, the equivalent expression for -9x + 15y is 3(-3x + 5y).
Learn more about the Factorization here:
brainly.com/question/4184435
#SPJ3
A store pays $15 for a baseball cap. The percent
markup is 60%. What is the selling price?
Answer:
$25
Step-by-step explanation:
Simply by using long division, this can be solved. Change 60% into its decimal form (0.6,) and divide 15 by 0.6.
Determine the rate of change from the graph.
On a coordinate plane, a line with positive slope goes through points (0.5, 0) and (1, 4).
The rate of change shown in the graph is ...
PLZ HELP. NEED EXPLANATION PLZ!