Answer:Write a hypothesis about the pH level of common household solutions based on what you know about their physical and chemical properties. Use the format of "if . . . then . . . because . . .” and be sure to answer the lesson question "How is pH used to determine if a solution is acidic or basic?”
Step-by-step explanation:
Divide. Write your answer as a fraction in simplest form.
−10 2/7 ÷ (−4 4/11)=
Answer:
Answer is 2 5/14. Hope that helped
Answer:
33/14 or 2 5/14
Step-by-step explanation:
sara wong spent $15 on three fancy pens.how much did each pen cost
Answer:
$5
Step-by-step explanation:
3 pens=$15
3x=15
3x÷3=x 15÷3=5
1 pen is $5
Dory can run 3.25 miles every hour. How long will it take her to run a race that is 16 1/4 miles long?
pls help
-5a + 15/2a - 25 = 53.2 + 21.8
Answer:
a= 40
Step-by-step explanation:
-5a + 7.5a - 25 = 53.2 + 21.8
add like terms on both sides: 2.5a - 25 = 75
add 25 on both sides: 2.5a = 100
divide both sides by 2.5: a = 40
Answer:
a = 40
Step-by-step explanation:
-5a + 15/2a - 25 = 53.2 + 21.8: Add 25 to Isolate variable
-5a + 15/2a = 53.2 + 21.8 + 25: Combine Like Terms and create simmilar terms
-10/2a + 15/2a = 100: CLM again
5/2a = 100: multiply both sides by inverse of 5/2 to isolate variable
a = 40
Someone invested some money at 8% and $300 more than
twice this amount at 12%. Her total annual income from
the two investments is $548. How much is invested at
each rate?
32
Answer:
$1600 at 8% and 3500 at 12%
Step-by-step explanation:
The rule of the interest is I = PRT, where
P is the amount of investment R is the rate in decimalT is the timeAssume that the amount of money is $x
∴ P = x
∵ The rate is 8%
∴ R = 8/100 = 0.08
∵ She has an annual income
∴ T = 1
→ Substitute them in the rule to find the interest amount
∴ I = x × 0.08 × 1
∴ I = 0.08x
∵ She invested $300 more than twice the previous amount
∴ P = 2x + 300
∵ The rate is 12%
∴ R = 12/100 = 0.12
∵ T = 1
→ Substitute them in the rule to find the other interest amount
∴ I = (2x + 300) × 0.12 × 1
∴ I = 0.24x + 36
∵ Her total annual income from both investments is $548
→ Add the two amount of interest and equate their sum by 548
∴ 0.08x + 0.24x + 36 = 548
→ Add the like terms in the left side
∴ 0.32x + 36 = 548
→ Subtract 36 from both sides
∴ 0.32x + 36 - 36 = 548 - 36
∴ 0.32x = 512
→ Divide both sides by 0.32
∴ x = 1600
∴ She invested $1600 at 8%
→ Substitute x by 1600 in the expression of the other amount to find it
∵ 2x + 300 = 2(1600) + 300 = 3500
∴ She invested $3500 at 12%
What is 153×694 pleas someone help me
Answer:
106182
Step-by-step explanation:
y=-2×+4
x-5y=2
do you know how to do this promble if you don't it's fine
Answer:
x=2
y=0
Step-by-step explanation:
Substitute -2x+4 for the y value in the second equation to find the value of x. x=2
Then plug 2 in for x in the first equation to find y. y=0
answer x=y-4/2
Step-by-step explanation:
-4=2x y-4/2=x
x=2+5y
I need help ASAP
Which statement best describes points P and Q?
Answer:
their y coordinates are the same
Step-by-step explanation:
Answer:
Their y-coordinates are the same.
Step-by-step explanation:
Point P is at (-6, 4) and Point Q is at (1, 4).
Notice how their y-values, which is 4, are the same.
Which of these correctly defines a ray?
a part of a line with exactly two end points
a straight path that extends endlessly in both directions
a circular path such that every point on the path is equidistant from its center
a part of a line that begins at a particular point and extends endlessly in one direction
Answer:
the last option
Step-by-step explanation:
it is a ray
A ray is part of a line that begins at a particular point and extends endlessly in one direction
A ray can be defined as a straight line passing through a point. A ray is denoted by;
A pointed head with an arrowa line extend endlessly in a directiona line that begins from a particular pointHence we can conclude that a ray is part of a line that begins at a particular point and extends endlessly in one direction
Learn more here: https://brainly.com/question/11916463
What is the value of the expression -17 x 1.3? Be sure to use the correct place value.
DA DA DA DA DA DA DA DA DA DA
Join the cult ;)
Answer:
-22.1
Step-by-step explanation:
-17 x 1.3 = -22.1
Hope I helped!
the point (x,y) lies on the line y=x+2. the distance from p(1,0) to (x,y) is represented by d. write d as an expression in terms of x.
Answer:
Step-by-step explanation:
girl im confused too:/
what is the value of i^13
Answer: i
i¹³ = 1
i · i ·i ·i ·i · i · i · i · i · i · i ·i · i = i
Answer:
i
Step-by-step explanation:
[tex]i^{13}[/tex] = i × i × i × i × i × i × i × i × i × i × i × i × i = iI hope this helps!
Helps me solve this problem please 6
Answer:
I believe its C
Hope that helps
Step-by-step explanation:
There are no other x's from your original 4 that are 3
does anybody know the answer lol excuse the rohan cursor :p
Answer:
you will get no solutions
Answer:
No Solution
Step-by-step explanation:
Deshawn's Bikes rents bikes for $11 plus $5 per hour. Maria paid $51 to rent a bike. For how many hours did she rent the bike?
If h(x) = 5 + x and (x) = 5. which expression is equivalent to (k-1)(o)? (5+) 1 (5+) 5+ 5+ (5 + x)
(5+x)/x
K*H = 1/x(5+x) or (5+x)1/x which = (5+x)/x because (5+x)1/x = [(5+x)/1] * [1/x] and anything multiplied by one is equal to itself.
If h(x) = 5 + x and k(x) = 5 then the expression which is equivalent to (koh)(x) is 25+5x
What is a function?A relation is a function if it has only One y-value for each x-value.
The given functions are h(x) = 5 + x and k(x) = 5x
We have to find the expression which is equivalent to (koh)(x)
(koh)(x) = k(h(x))
=k(5+x)
Now we have to plug in 5+x in the function k(x)
k(5+x)=5(5+x)
=25+5x
Hence, if h(x) = 5 + x and k(x) = 5 then the expression which is equivalent to (koh)(x) is 25+5x
To learn more on Functions click:
https://brainly.com/question/30721594
#SPJ7
Explain! Prizes! Thank you !
Answer:
$16
Step-by-step explanation:
20/5 = 4
4 x 4 = 16
Have a good day!
==================================================
Work Shown:
5 notebooks = 20 dollars
5/5 notebooks = 20/5 dollars ..... divide both sides by 5
1 notebook = 4 dollars ..... unit rate
4*(1 notebook) = 4*(4 dollars) .... multiply both sides by 4
4 notebooks = 16 dollars
---------------
Another approach:
(5 notebooks)/(20 dollars) = (4 notebooks)/(x dollars)
5/20 = 4/x
5*x = 20*4 ... cross multiply
5x = 80
5x/5 = 80/5 .... dividing both sides by 5
x = 16
So 4 notebooks cost $16
Someone please help!!! Look at the attachment
Answer:
1. [tex]\angle 5[/tex] and [tex]\angle 13[/tex] are Corresponding Angles
2. [tex]\angle 4[/tex] and [tex]\angle 9[/tex] are Alternate Interior Angles
3. [tex]\angle 5[/tex] and [tex]\angle 16[/tex] are Alternate Exterior Angles
4. [tex]\angle 3[/tex] and [tex]\angle 9[/tex] are Consecutive Interior Angles
Step-by-step explanation:
Alternate Interior Angles - When a pair of angles are in the interior in the opposite sides of the transversal.
Alternate Exterior Angles -When a pair of angles are in the outside in opposite sides of the transversal.
Corresponding Angles - When a pair of angles are in the same side of one of two sides by a cross-section.
Consecutive Interior Angles - When a pair of angles on the side are same but inside the two lines.
3x2(2+4)X22 PLEASE HELP
Answer: 18x24 or 792
Step-by-step explanation:
What are the solutions of 6t-1> 4t+13
answer:t>7
6t - 1> 4t + 13 Move the terms 6t - 4t> 13 + 1 Group the like terms Calculate 2t> 14 Divide both sides Solution t> 7 Alternate between E (7, + 0) Explain the steps> II
Help needed ASAP will give brainliest and 5 STARS RATE
Answer:
C.
Step-by-step explanation:
Solve for the missing angle.
65
45
0 70
O 65
0 45
0 25
Thanks in advance!
filler filler filler filler filler
Answer:
C
Step-by-step explanation:
The base number is 2, and it's being multiplied 7 times, so 7 is the exponent
Hope this helps!
The sum of 3 consecutive odd integers is 36. Whal
consecutive odd integers
[tex]\huge\pink{Answer}[/tex]
Any odd number can be represented with 2n+1 where n is a whole number. Also, since the next consecutive number will be even (2n+1+1), then the next consecutive odd number must be 2n+1+2, or 2n+3. Since consecutive odd numbers are separated by 2, then the previous odd number should be 2n-1. So:
2n-1+2n+1+2n+3=366n+3=366n+3-3=36-36n/3=33/32n=11Now in order to find three odd consecutive numbers that will sum to 36, you must be able to divide 11 evenly by 2, and have a whole number as a result. This is impossible, so there aren't any 3 odd numbers that will sum to 36.
HOPE IT HELPS ☺️plz help me this one is a lil tough
Answer:
100 degrees
Step-by-step explanation:
It's going through 140 and 40, 180 - 40 = 140
180 cause a flat line is 180 degrees
Answer:
140*
Step-by-step explanation:
the line is pointing through 40* and 100* which makes it that.
hope this helps! have a good day and stay safe!
id like brainliest but if not its ok!
(i got it wrong the first time but once i looked at it more i found it out)
Which it the equation of the line that passes through the point (2,-1) and has a slope of -3?
Answer:
y=-3x-1
Step-by-step explanation:
slope formula is y=mx+b
so, ya just plug in. slope is -3 and b (y-value) is -1
The perimeters of the square and the regular pentagon are equal. A square with side lengths of 3x + 3. A pentagon with side lengths of x + 8. What is the perimeter of each polygon?
Answer:
The answer is Not 40 idk what it is
Step-by-step explanation:
can someone help..convert 15/125 to a decimal in long division?
Answer:
the answer is 0.12
Step-by-step explanation:
You would do 15/125 which is 3/25
then you would do 25 times 4 and the 3 times for to get 12/100
then you would convert that into a decimal which is 0.12
Multiple Choice!
Which relation is symmetric with respect to the x-axis?
Option D, y = 3 is the correct answer
Cho had $2.85 in nickels and $3.40 in dimes. Then she gave an equal number of her nickels and dimes to her brother. Now Cho has the same amount of money in nickels as in dimes.
The equation 285−5x=340−10x represents the situation.
Which does the variable x represent?
Will Give Brainliest
Answer:
x = 11Step-by-step explanation:
The equation represents as:
285 − 5x = 340 − 10x
combine similar terms:
285 - 340 = 5x - 10x
simplify:
-55 = -5x
divide -5 on both sides:
x = 11
