Step-by-step explanation:
The concentration of Marcia's solution is:
1.0 kg / 3.0 L = 0.33 kg/L
The concentration of Bobby's solution is:
(2.0 lb × 1 kg / 2.2 lb) / (7.0 pints × 1 L / 2.11 pints) = 0.27 kg/L
Therefore, Marcia's solution is more concentrated.
What is the solution of the equation 2/3 + 5x/3= 9 ?
Answer:
x=5
Step-by-step explanation:
multipy both sides of the equation by 3 to remove the denominator becomes
2+5x=27
subtract 2 from both sides since it's positive
5x=25
divide 5 from both sides
x=5
Please mark Brainlist!!!
Explain why the ratio 3ft./1yrd. has a value of one
Answer:
Down below
Step-by-step explanation:
There are 3 feet in 1 yard which makes it have a value of one.
3ft = 1yd
Best of Luck!
In your own words, write a verbal expression for the following algebraic expression.
18p
Step-by-step explanation:
18p is a multiplication expression in itself.
It could be written as 18 x p. I am confused on what you mean as 'verbal' so i'm gonna take a wild guess and say word form.
eighteen times p???
Sorry if it's wrong.
Consider the following function:
y = one-fourth cosine (negative one-fourth x)
Which of the following statements are true? Check all that apply.
The graph is symmetric to the y-axis.
The function decreases on the interval (0, 4π).
The frequency is StartFraction 1 Over 4 pi EndFraction.
The graph is compressed horizontally by a factor of One-fourth
The graph has x-intercepts at x = 2π and x = 6π.
Please help and give an explanation if possible
Answer:
the answers are A., B., and E.
Step-by-step explanation:
The correct options are A, B, and E which represent the condition of the function y = 0.25 cos (- 0.25x).
What is a function?A function is an assertion, concept, or principle that establishes an association between two variables. Functions may be found throughout mathematics and are essential for the development of significant links.
The function is given below.
y = 0.25 cos (- 0.25x)
The graph of the cosine function is given below.
The key points regarding cosine function are as follows:
The graph is symmetric to the y-axis.The function decreases on the interval (0, 4π).The graph has x-intercepts at x = 2π and x = 6π.The correct options are A, B, and E which represent the condition of the function y = 0.25 cos (- 0.25x).
More about the function link is given below.
https://brainly.com/question/5245372
#SPJ3
this is integrated math2, i’m so confused what does it mean and what is the answer help please (this is the last one lol sorry)
Dan bought these items for
school: 2 pens at $0.75 each, 1
notebook at $1.99, a package of
pencils for 25 cents. How much
change would Dan get if he gave the
cashier a 5 dollar bill?
Find the distance between the points (0,2)and (-5,-9)The answer must be a whole number or a fully simplified radical expression do not round up
Answer:
d = [tex]\sqrt{146}[/tex]
Step-by-step explanation:
[tex]d= \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}\\d= \sqrt{(-5-0)^2+(-9-2)^2}\\d= \sqrt{(-5)^2+(-11)^2}\\d= \sqrt{25+121}\\d= \sqrt{146}[/tex]
Find the missing fraction.
3
2
10
4
3
Answer:
work attached and shown
Find the first four terms of the sequence using the recursive formula.
Answer:
- 3, - 11, - 35, - 107
Step-by-step explanation:
Using the recursive formula with f(1) = - 3 , then
f(2) = - 2 + 3f(1) = - 2 + 3(- 3) = - 2 - 9 = - 11
f(3) = - 2 + 3f(2) = - 2 + 3(- 11) = - 2 - 33 = - 35
f(4) = - 2 + 3f(3) = - 2 + 3(- 35) = - 2 - 105 = - 107
Thus the first four terms are
- 3, - 11, - 35, - 107
Jake finished race at 24.53 Lacie finished the race at 18.44. What is the difference between Lacie's time and Jake's time.
Answer:
=6.09
Step-by-step explanation:
you will have to subtract lacie's amount from Jake's amount to find the answer
Factor 1/2 out of 12x−33/2. 1/2x−33/2=
Answer:
16.5
Step-by-step explanation:
Click or touch the graph to plot the points.
ty
16
Graph each set of points. Which set represents
equivalent ratios?
O (1,4), (2, 6), (3, 3)
O (2,8), (3, 12), (4, 16)
O (3, 8), (6, 16), (8, 20)
(1,5), (3, 12), (5, 20)
12
8
4
1
4
8
12
16
Evaluate the expression for v = 12.
Write your answer as a decimal or whole number.
–10.9 + 4v =
Answer:
1.
v = 12
-10.9 + 4v
-10.9 + 4(12)
-10.9 + 48
= 37.1
HELP!!! Is the relationship a function?
Answer:
No
Step-by-step explanation:
It is not a function because the x should never repeat the y can but not the x.
Answer:
not a function
Step-by-step explanation:
A vendor at a baseball game sells boxes of popcorn and bags of pretzels.
• A customer buys 2 boxes of popcorn and 1 bag of pretzels for $6.75.
• Another customer buys 1 box of popcorn and 2 bags of pretzels for $6.00.
Each bag of pretzels costs $
Answer:
Each bag of pretzels costs $1.75
Step-by-step explanation:
Let the cost of 1 box of popcorn be $x
Let the cost of 1 bag of pretzel be $y
_______________________________________
A customer buys 2 boxes of popcorn and 1 bag of pretzels for $6.75.
cost of 2 box of popcorn =2*$x = $2x
sum of cost 2 boxes of popcorn and 1 bag of pretzels in terms of x and y
2x + y = 6.75 equation A
__________________________________
Another customer buys 1 box of popcorn and 2 bags of pretzels for $6.00
cost of 2 box of pretzel =2*$y = $2y
sum of cost of 1 box of popcorn and 2 bags of pretzels in terms of x and y
x + 2y = 6 equation B
x = 6 - 2y
substituting this value of x in equation A
2(6 - 2y) + y = 6.75
=> 12 - 4y + y = 6.75
=> -3y = 6.75 - 12 = -5.25
=> y = -5.25/-3 = 1.75
Thus, Each bag of pretzels costs $1.75
if 8 people shared 44 crackers equally how many crackers does each person get
Answer:
Each person gets 5 and 1/2 crackers.
Step-by-step explanation:
44/8=5.5
Answer: each person gets 5 and 1/2 crackers
J = -h+b
Solve for B
Answer:
See Below
Step-by-step explanation:
Isolate B
Soo add h to both sides
J = -h +b
+h +h
J + h = b
or
b = j + h
5) Answer the following questions :
The total number of boys and girls in a school is 320. the
number of boys in this school is 180 find :
a) The ratio between the number of boys and that of girls.
b) The ratio between the number of boys & the total number of
pupils.
c)The ratio between the number of girls & the total number of
pupils.
Answer:
a)9:7 b) 9:16 c) 7:16
Step-by-step explanation:
the no of girls (320-180)=140
a) ratio of no of boys and girls=180/140=9/7=9:7
b)ratio of boys and total pupil=180/320=9/16=9:16
c) ratio of the girls and pupils=140/320=7/16=7:16
Answer:
a) 9:7 (9 being the boys,7 being the girls)
b)9:16 (9 being boys, 16 being the total pupils)
c)7:16 (7 being girls, 16 being the total pupils)
Step-by-step explanation:
a) No. of girls= 320-180
=140
Boys: Girls
180 : 140 [ ÷ 20]
9 : 7
b) Boys: Pupils
180 : 320 [ ÷ 20]
9 : 16
c). Girls: Pupils
140 : 320 [ ÷ 20]
7 : 16
write 40/17
as a decimal rounded to the nearest hundredth.
I even tried this and couldn't figure it out
Express in simplest form: 12 (2 + ) − (4 + )
Answer:
20
Step-by-step explanation:
12 (2 + ) − (4 + )
24-4
=20
Answer:
20
Step-by-step explanation:
Correct me if I’m wrong please
Answer: your answers are correct
x = 10
PT = 34
Step-by-step explanation:
PT = 4x - 6 and TQ = 3x + 4
if PT = TQ
4x - 6 = 3x + 4
4x - 3x = 4 + 6
x = 10
PT = 4x - 6
PT = 4 (10) - 6
=40 - 6
PT = 34
The value of PT = 34
Mike and Teegan each measured the volume of the 16-ounce bottle three times. They recorded their measurements as shown. Mike: 16.4 oz, 15.2 oz, 15.8 oz Teegan: 16.34 oz, 16.59 oz, 15.13 oz Which statement is true? Mike's measurements are more precise and more accurate. Teegan's measurements are more precise and more accurate. Mike's measurements are more precise, but Teegan's measurements are more accurate. Mike's measurements are more accurate, but Teegan's measurements are more precise.
Answer:
The correct option is;
Mike's measurement are more precise and more accurate
Step-by-step explanation:
The given information are;
The mass of the measured bottle = 16-ounce
The record of the measurements made by Mike are;
16.4 oz
15.2 oz
15.8 oz
The record of the measurements made by Teegan are;
16.34 oz
16.59 oz
15.13 oz
From the two measurements, we have;
The precision of a measurement depends on how close the values of the measurement are to one another, therefore, we have;
For Mike, the precision is given as follows
16.4 - 15.2 = 1.2
16.4 - 15.8 = 0.6
15.8 - 15.2 = 0.6
Total difference = 1.2 + 0.6 + 0.6 = 2.4
For Teegan , the precision is given as follows
16.59 - 16.34 = 0.25
16.59 - 15.13 = 1.46
16.34 - 15.13 = 1.21
Total difference = 0.25 + 1.46 + 1.21 = 2.92
Therefore, Mike's measurements are more precise than Teegan's measurements
The accuracy of the measurement is the amount of closeness the measurements are to a given value
In the question, the given value is 16-ounces of the volume of the bottle
Therefore, by the mean absolute deviation from the 16-ounce of the bottle, we have;
For Mike;
[tex]Mean \ absolute \ deviation = \dfrac{\left | 16.4 - 16 \right | + \left | 15.2 - 16 \right | + \left | 15.8 - 16 \right | }{3} = 0.533[/tex]
For Teegan, we have;
[tex]Mean \ absolute \ deviation = \dfrac{\left | 16.34 - 16 \right | + \left | 16.59 - 16 \right | + \left | 15.13 - 16 \right | }{3} = 0.6[/tex]
Therefore, Mike's measurement is more accurate than Teegan's measurement.
Which gives;
Mike's measurement are more precise and more accurate.
Answer:
Mike’s measurements are more accurate, but Teegan’s measurements are more precise.
Step-by-step explanation:
If there are 679 peaches and then you divide by 4.How many do u have in all.
Answer:
if you have a total of 679 peaches and you split them up into 4 different groups, you will have 169 whole peaches in each but you'll have .75 of a peach left over.
Step-by-step explanation:
It’s all in the picture number 5!!!pleaseee help‼️‼️‼️‼️‼️‼️ASAP‼️‼️
We know that m<JKL = m<JKM + m<MKL
Let's substitute the values from the picture into our equation above.
10x - 11 = 43 + 8x - 20
Combine like terms.
10x - 11 = 8x + 23
Subtract 8x from both sides and add 11 to both sides.
2x = 34
Divide both sides by 2
x = 17
m<MKL = 8x - 20 = 8(17) - 20 = 136 - 20 = 116 degrees.
m<JKL = 10x - 11 = 10(17) - 11 = 170 - 11 = 159 degrees.
is negative 31 an integer
Answer:
yes
Step-by-step explanation:
all numbers are integers
1. There are 34 panda stickers, 24 elephant stickers, 32 smiley face stickers
and 12 star stickers in the sticker machine. Tara wants to get a star sticker
or a panda sticker
Answer:
she could add them all up
Step-by-step explanation:
Can someone help me solve this???
-2 ( 3x - 4 ) = 26
and pls explain
Answer: x = - 3
Step-by-step explanation:
Distribute the -2 into (3x - 4 ). -6x + 8 = 26Subtract 8 on both sides. - 6x = 18Divide -6 on both sides. x = -3What’s the slope? Please answer ASAP
Answer:
I think it is - 1/2 by the way love ur profile picture and username
Rewrite in simplest terms: -5a – 86-8a + 1)
Answer:
- 13a - 85
Step-by-step explanation:
Given
- 5a - 86 - 8a + 1 ← collect like terms
= (- 5a - 8a ) + (- 86 + 1)
= - 13a + (- 85)
= - 13a - 85
Answer:
-13a - 85
Step-by-step explanation:
Collect the like terms
-5a -8a = -13a
Then calculate the sum
-86 + 1 = -85
and then you get your answer
-13a - 85
Identify the type of slope with the description of the line.
Zero Slope
( Choose)
Undefined Slope
[Choose )
Positive Slope
[Choose )
Negative Slope
[Choose)
Zero slope-Horizontal line
Undefined slope-Vertical slope
Positive slope-Left to right line is going up
Negative slope-Left to right line is going down.
Answer:
Zero slop is; horizontal line
Undefined slope is; vertical line
Positive slop is; left to right going up
Negative slope is; left to right going down