Answer:
225/4
Step-by-step explanation:
x^2+15x+c
take half of 15 and square it
(15/2)^2
225/4
Determine wether each equation is correct. Select yes or no
Who could help me with this please and thank you
Answer:
x = number of students in each van = 16
y = number of students in each bus = 47
(bus, van) = (47, 16)
Step-by-step explanation:
Let
x = number of students in each van
y = number of students in each bus
This can be represented by the equation
7x + 6y = 394 (1)
3x + 12y = 612 (2)
Using elimination method
Multiply (1) by 2
14x + 12y = 788 (3)
3x + 12y = 612 (2)
Subtract (2) from (3) to eliminate y
14x - 3x = 788 - 612
11x = 176
x = 176/11
x = 16
Substitute x = 16 into (1)
7x + 6y = 394 (1)
7(16) + 6y = 394
112 + 6y = 394
6y = 394 - 112
6y = 282
y = 282/6
y = 47
x = number of students in each van = 16
y = number of students in each bus = 47
(bus, van) = (47, 16)
Tiffany ate 1/4 of a pizza. If there were 16 slices of pizza to begin with, how many slice did Tiffany eat?
jehejejdjdjjdjdkjfjf
anyone wanna be egirl
Answer:
It’s crossed my mined a couple times
Step-by-step explanation:
*probability question* There are 6 red, 6 blue, 8 green, 7 purple, and 8 yellow marbles. As students enter the classroom, they draw a marble and keep it. If the first student in the room draws a yellow, and the 2nd draws a purple, what is the probability that the third student will draw a yellow also?
Answer:
21%
Step-by-step explanation:
8+7+8+6+6= 35 total marbles
35-2 used = 33 marbles left
100/33 = 3% per marble
7 yellow left x 3 % = 21%
Answer:
7/25
Step-by-step explanation:
Let's remove all the marbles that were drawn by the bag first. That makes...
Red: 6
Blue: 6
Purple: 6
Yellow: 7
If we have 7 yellow marbles currently in a bag of 25 marbles, then the chance that the third student draws a yellow is...
7/25
I need this pleaseeee
Answer:
2(√17b³ )c⁵
Step-by-step explanation:
We are to simplify the expression given below
√68b³c¹⁰
Simplifying 68
= √(17 × 4)b³c¹⁰
Hence
= 2√17b³c¹⁰
= 2 √17b³ × √c¹⁰
= 2 √17b³ × c¹⁰/²
= 2(√17b³ )c⁵
Amanda increased the amount of protein she eats every day from 48g to 54g. By what percentage did Amanda increase the amount of protein she eats? 11.1%
Answer:
12.5%
Step-by-step explanation:
Previous grams of protein = 48g
Present grams of protein = 54g
By what percentage did Amanda increase the amount of protein she eats?
Percentage increase in the amount of protein = (present grams - previous grams) / previous grams × 100
= (54g - 48g) / 48g × 100
= 6g/48g × 100
= 1/8 × 100
= 0.125 × 100
= 12.5%
Percentage increase in the amount of protein = 12.5%
Due to random variations in the operation of an automatic coffee machine, not every cup is filled with the same amount of coffee. Assume that the mean amount of coffee dispensed is 8 ounces and the standard deviation is 0.6 ounce. Use the 68-95-99.7 rule to complete the following. a. What percent of the cups should have less than 8 ounces of coffee? b. What percent of the cups should have less than 7.4 ounces of coffee?
Answer:
465
because it is the wright answer
Nine tokens are black on one side and white on the another initially four tokens have the blackside upwards in each turn tell the least number of turns yo need to have all tokens showing the same colour
Answer:
2
Step-by-step explanation:
Let us name the white chips "W" and the black ones "B". If there are 9 tiles and 4 are in black then the rest, that is 5, in white, like this:
B-B-B-B-W-W-W-W-W
First movement, in turn we can flip 3 tiles, in this case we flip two blacks and one white, it would look like this:
W-W-B-B-B-W-W-W-W
The second movement is to turn the 3 black ones and thus they would all be blank
W-W-W-W-W-W-W-W-W
This means that, the smallest number of movements is 2.
plzs help it for school
and it you do help you will get something back
Answer:
[tex]Area=94~sq~units[/tex]
Step-by-step explanation:
[tex]prism=2(lb+bh+hl)[/tex]
[tex]Given: l=5 ~units , b=4 ~units,h=3 ~units[/tex]
[tex]Area=2(5*4+4*3+3*5)[/tex]
[tex]=2(20+12+15)[/tex]
[tex]=2(47)[/tex]
[tex]=94[/tex]
--------------------
hope it helps...
have a great day!!
Answer:
your answer is 94 sq units
Step-by-step explanation:
hope it helps...
find the slope between the points (1,18) and(4,12)
Answer:
slope = -2
Step-by-step explanation:
rise/run: y2-y1/x2-x1 .
=12-18/4-1 = -6/3 = -2
Jester has a business that is not doing well. on Friday, he earned 468 dollars. On Saturday, he earned 459. on Tuesday, he earned 432 dollars. How much money did he earned on Thursday?
Answer:
i think is 424. its what my mom just explain to me
make k the subject of the formula y=
Answer:
You forgot to send the question. Send the full question when you can
Jaden bounces the basketball 20 times in 30 seconds. At that rate, approximately
how many times will Jaden bounce the ball in 150 seconds?
Answer:
150÷30 =5
20×5 =100 so in 150 seconds he will bounce the ball 100 times
What is the perimeter of the triangle?
units
Answer:
Perimeter of triangle= sum of two sides and hypotenuse
Answer:
30 units
Step-by-step explanation:
The perimeter of the triangle is the sum of the two legs, or the shorter sides a and b, and the hypotenuse, the last and longest side, c.
We can already see that side a and b have the lengths of 5 and 12 units.
To find the length of c, use the formula a² + b² = c².
Substitute our a and b values into the formula and solve for c.
a² + b² = c²
5² + 12² = c²
25 + 144 = c²
169 = c²
√169 = √c²
13 = c
The third side is 13 units long.
Now we can add our values for a, b, and c together to find the perimeter.
5 + 12 + 13 = P
30 = P
The perimeter is 30 units.
Good luck ^^
A rectangular rug feet long and wide feet wide with a perimeter of 60 ft both X and Y are whole numbers between 10 and 20
Complete Question
A rectangular rug feet is x ft long and y feet wide with a perimeter of 60 ft both X and Y are whole numbers between 10 and 20. Fill in the blanks to complete the sentence. The Area of the rug is greater than___but less than__.
Answer:
he Area of the rug is greater than but less than [tex]441ft[/tex]
Step-by-step explanation:
From the question we are told that:
Perimeter [tex]P=60ft[/tex]
Value Range:Between 10-20
Generally the Area of the rug is greater than for values of X and Y greater than 9
Therefore Area is greater than from whole number 9
Generally the equation for Area greater than [tex]A_g[/tex] is mathematically given by
[tex]A_l=X*Y[/tex]
Where
[tex]X=9\\Y=9[/tex]
Therefore
[tex]A_l=X*Y[/tex]
[tex]A_l=9*9[/tex]
[tex]A_l=81ft[/tex]
Generally the Area of the rug is less than for values of X and Y less than 21
Therefore Area is less than from whole number 21
Generally the equation for Area greater than A_l is mathematically given by
[tex]A_g=X*Y[/tex]
Where
[tex]X=21\\Y=21[/tex]
Therefore
[tex]A_g=X*Y[/tex]
[tex]A_g=21*21[/tex]
[tex]A_g=441ft[/tex]
If you are considering renting a place for $1,500 a month, and you are one of 3 people on the lease (split evenly, 3 ways), how much does your gross income need to be? (Hint: First, figure out what your portion of the rent is)
a.
$1,800
b.
$1,500
c.
$1,200
d.
$900
e.
$600
Answer:
our lease is $1500 which is b.
Sam is 10 years younger than one-half the age of his aunt. Let a represent his aunt’s age. Which algebraic expression can be used to determine Sam’s age if his aunt is 40?
StartFraction a Over 10 EndFraction minus 2; when a = 40 Sam is 2 years old
StartFraction a Over 10 EndFraction + 2; when a = 40 Sam is 6 years old
StartFraction a Over 2 EndFraction minus 10; when a = 40 Sam is 10 years old
StartFraction a Over 2 EndFraction + 10; when a = 40 Sam is 30 years old
Answer:
The Quadratic Formula
Step-by-step explanation:
3rd one
If 1 US dollars can be exchanged for 0.55 Euros, how many Euros can be obtained when exchanging 47 U.S. dollars?
Answer:
25.85 Euros
Step-by-step explanation:
1 US dollar = 0.55 Euros
0.55 x 47 = 25.85 Euros
Hope this helped :)
Answer:
25.85 Euros
explanation:
If 1 US dollar equals .55 Euros then 47*0.55=25.85 Euros
PLEASE HELP! Thank you in advance! :3
Nicholas is buying shirts for his baseball team. He will pay $8.75 for each shirt plus a one-time fee of $25 for the design. Write an equation that can be used to find y, the total cost to buy x shirts.
Answer:He will pay $9.50 for each shirt plus a one-time fee of $22.50 for the design.
Which equation can be used to find y, the total cost to buy x shirts?
A) y = 9.5x + 22.5
B) y =22.5x + 9.5
C) y = 9.5x - 22.5
D) y =22.5x - 9.5
He would use equation A.
Step-by-step explanation:If each shirt cost 9.50 you would multiply that by how many shirts you have plus the one time fee of 22.50 you would get the equation y= 9.5x + 22.5
Lily sort of these solid figures into two groups what is true about the groups
is it possible to construct a triangle with the given lengths? 16, 37, 53
Answer:
No, you can not create a triangle with these three side lengths.
Step-by-step explanation:
According to the Triangle Inequality Theorem, in order for three given lengths to form a triangle, two of the side lengths must add up to be greater than the length of the largest length. 16+37 makes 53, which is equal to the length of the largest side, not greater.
What is the domain and Range of the piecewise function?
A. All real numbers
B. X<0, X>4
C. -inf < x < -2, 0< x<4, x>4
Answer:
option A all real numbers
Step-by-step explanation:
domain is the all possible "X" values
and X has all real values
All the real numbers of X are domain and range of piecewise function .
What is piecewise function?
A Piecewise Function is a merge of several functions in a single graph. Each function takes a part of the x axis of the graph.
Graph
Domain: The domain of a piecewise-defined function is the union of its subdomains.
Range :The range of a piecewise-defined function is the union of the ranges of each subfunction over its subdomain.
Now,
Straight line graph of x having equation : y = mx + cconstant value of x : x= yexponential curve of x .Thus the domain and range of piecewise function is all real numbers .
Know more about piecewise function,
https://brainly.com/question/28225662
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13% of 160 is 16% of
A. 13
B. 130
C. 1300
D. 13,000
Answer:
B. 130
Step-by-step explanation:
_______________
Answer:
B - 130
both values are equal to 20.8
Step-by-step explanation:
the first step is figuring out what they want you to compare the multiple choice answers to- 13% of 160, which is equal to 20.8 (160*.13)!
so next, we need to take 16% of each of our answers. we can guess at what our answer isn't going to be, specifically that it cannot be 13 since 20.8 is more than 13. We can also guess its not going to be 13,000, since even ten percent of that is about 130. The same logic can be applied to 1300, ten percent of 1300 (ie dividing 1300 by ten) is 130, again too large.
Therefore, by process of elimination we can guess that its likely B.
As for checking: we have our 20.8 to compare to, and 16% of 130 (.16*130) is in fact 20.8.
calculate the value its asking you to compare to- 13% of 160 (or .13 * 160) is 20.8use process of elimination to eliminate a few answers:the answer cannot be A because A is already smaller than 20.8the answer cannot be D because even 10% of D is 1300 (much more than 20.8the answer cannot be C because 10% of C is 130, more than 20.8that leaves B as our answer- and lets check16% of 130, or .16*130 is equal to 20.8
A goat and a cow together weigh 190 kg 640 g. The weight of the goat is 59 kg 720 g. Find the weight of the cow
Answer: 130 kg 920 g
Step-by-step explanation:
Given
The weight of the goat is 59 kg 720 g
The combined weight of goat and cow is 190 kg 640 g
Suppose, the weight of the cow is x kg
We know, 1 kg=1000 g
Converting weight into kg
Goat weight
[tex]=59+0.720\\=59.720\ kg[/tex]
Total weight
[tex]=190+0.640\\=190.640\ kg[/tex]
Then, the cow weight is given by
[tex]\Rightarrow 190.640-59.720\\\Rightarrow 130.920\ kg\ \text{or}\ 130\ kg\ 920\ g[/tex]
¡PLEASE HELP! I'll give out 80 points
Answer: I think it’s c?
Step-by-step explanation:
Not sure though
Answer:
C. the graph of f(x) +K
Step-by-step explanation:
C is the only graph with a y = 3
how line did you wait in line? is a statistical question
Answer:
yes
Step-by-step explanation:
hopes this helped;0
Mario went to a store and bought 3 slices of pizza. The guy at the register said " that would be $3.75". Mario then said "wait, let me add 1 more slice of pizza". How much is his bill now?
Answer:
$5
Step-by-step explanation:
Cost per slice
3.75 / 3 = 1.25
Cost of 4 slices
1.25 * 4 = 5
Answer:
$5
Step-by-step explanation:
First, find how much one slice of pizza costs.
Divide Mario's total by the number of slices he got:
3.75/3
= 1.25
So, one slice of pizza costs $1.25
Add this to his total to find how much his bill will be with one more slice:
3.75 + 1.25
= 5
So, his bill will be $5
Sixth grade
1.3 Equivalent tractions review
Type the missing number that makes these fractions equal:
?/10=14/20
Answer:
7
Step-by-step explanation:
PROBLEM SOLVING You and your friend are among several candidates turning for class president. You estimate that there is a 15% chance you will and a 25% chance your friend wil What is the probability that you
or your friend win the election?
The probability that you or your friend win the electionis %
Answer:
40%
Step-by-step explanation:
15/100 +25/100 = 40/100 or 40%