Answer:
32%
Step-by-step explanation:
50% of the first solution is HCL, so it has
80 ml x 50% = 80 ml x 0.5 = 40 ml of HCL
Similarly the second solution has 20% of HCL, so
120 ml x 20% = 120 ml x 0.2 = 24 ml of HCL
The combined solution will have 40 ml + 24 ml = 64 ml of HCL.
The total volume of the 2 solutions is 80 ml + 120 ml = 200 ml.
We can now calculate the concentration of HCL in the mixed solution, by dividing the volume of HCL by the total volume of the solution,
64 ml / 200 ml = 0.32 = 32%
1 Identify the expressions.
15 = 15
Om = 0
5+5 – 2(1)
Ox+y=5+2
Answer:
equalities
Please put the Brainlest
if a polynomial has one root in the form a+√b , it has a second root in the form of a_√b
Answer:
(a - √b)
Step-by-step explanation:
Roots occur as positive and negative conjugates. Therefore, the conjugate of (a + √b) is (a - √b)
There will be 6 people at Eli's cake party. She wants to bake enough cake so that each person she feeds eat at least 1/5 of the cake. What is the minimum number of cakes you should bake?
Answer:
2 cakes
Step-by-step explanation:
You need 2 cakes minimum for 6 people if she wants each person to get 1/5 of a cake.
Use the fact 26% of 78= 20.28 to find 13% of 78
Answer:10.14
Step-by-step explanation:
13x78=1014/100=10.14Of 50 laptop computers available in a supply room, 20 have a wireless card, 12 have aCD/DVD burner, and 24 have neither. In an experiment, a laptop is randomly selected from thesupply room and whether or not it has a wireless card or a CD/DVD burner recorded. Using W to denote the event that the selected laptop has a wireless card and C to denote the event that the selected laptop has a CD/DVD burner, symbolically denote the following events and find the number of laptop computers represented by each.
Required:
a. The selected laptop has both a wireless card and a CD/DVD burner.
b. The selected laptop has either a wireless card or a CD/DVD burner.
c. The selected laptop has a CD/DVD burner only.
d. The selected laptop has either a wireless card or a CD/DVD burner but not both.
Answer:
ANSWER IS D
Step-by-step explanation:
forgive me if is wrong
A DVD originally costs $16. The discounted price is $12. What is the
percent change?
25% increase
25% decrease
18.75% increase
18.75% decrease
Which one of those answers?
And explain?
Answer:
The answer to your question is 25% decrease.
Answer:
25% decrease
25% of 16 is 4
Make it brainliest and give it heart ty
#CarryOnLearning
Always, Sometimes, Never
Two similar triangles are congruent
Answer:
Similar triangles are sometimes congruent. We can consider two triangle such that the measure of all the angles are equal but the sides of one triangle is three times the side of the other triangle in such a case the triangles are not congruent but they are similar
Tasha is packing gift bags that include
the same items. She has 72 glow sticks,
36 markers, and 24 bottles of bubbles.
Tasha believes that she can pack no
more than 6 bags using all of her
supplies. Do you agree with Tasha? Explain.
Answer:
No, I do not.
She can pack up to 12 bags
Step-by-step explanation:
Given
[tex]Glow\ sticks = 72[/tex]
[tex]Markers = 36[/tex]
[tex]Bubbles = 24[/tex]
Required
Is Tasha correct?
The maximum number of bags she can pack is determined by the greatest common factors (GCF) of the items.
i.e. GCF of 72, 36 and 24.
This is calculated as:
[tex]24 = 2*2*2*3[/tex]
[tex]36 = 2 * 2 *3*3[/tex]
[tex]72 = 2 * 2 * 2 *3*3[/tex]
Multiply all common factors:
[tex]GCF = 2 * 2 * 3[/tex]
[tex]GCF = 12[/tex]
The GCF is 12.
This implies that she can pack up to 12 bags
Find x.
2x + 40
Зх.
4x
X + 50
x = [?]
Answer:
x=122
Step-by-step explanation:
correct 96897 to the nearest thousand
solve 5y - 2 = 3y + 14
Answer: y=8
Step-by-step explanation:
Answer:
Y = 8
Step-by-step explanation:
1. Rita has 3 ¾ cups of potato chips to share with 6 friends. How many cups does EACH friend get
Answer:
Each friend will get 5/8 (excluding Rita)
Each person will get 15/28 (including Rita)
Step-by-step explanation:
You must simply divide 3 3/4 ÷ 6 (excluding Rita)
You must simply divide 3 3/4 ÷ 7 (including Rita)
Solve the system of equations by graphing. -x+y = -2 y = -1
Answer:
the solution is (9, -1).
Step-by-step explanation:
graph the two equations on a graphing calculator (i use a website called desmos) and the point of intersection is the solution.
i hope this helps! have a great day <3
What is the sum of the interior
angle measures of a polygon
that has 7 sides?
Sum = [?]
Hint: Sum = (n-2)180
Answer:
Sum = 900 degrees.
Step-by-step explanation:
Sum = (n-2)180
=(7-2)180
=(5)180
=900
Answer:
900 degrees
Step-by-step explanation:
The formula for calculating the sum of the interior angles of a regular polygon is : ( n - 2) × 180°. when n is number of sides.
Sum of angles = ( n-2) × 180
Sum of angles = (7-2) × 180
Sum of angles = 5 × 180
Sum of angles = 900 degrees
How old is Abraham How old is Abraham Lincoln
Answer:
Abraham Lincoln was 56 years old when he died.
Step-by-step explanation:
Suppose a - b = 0Which one of these expressions equals ab?
A. 2a
B. 0
C. b^2
D. 2b
E. a/b
If a-b=0, a=b, so ab=bb=b^2
Answer:
b^2
Step-by-step explanation:
a - b = 0
Add b to each side
a-b+b = 0+b
a=b
We want to find ab
Replace a with b
b*b
b^2
The Miller family likes to paddle along the North River.
1. They paddled the same distance each day throughout the course of 3 days, traveling a total of 14 miles. How many miles did they travel each day ?
write the mixed number you got
4 2/3 think of how many time you can put 3 into 14 the section out the rest
Answer:
4 2/3
Step-by-step explanation:
the millers travled 4 2/3
A curve has equation y=2/x square root what is dy/dx
Answer:
dee y by dee x
Step-by-step explanation: hope this helps! have a supercalifragilisticexpialidocious day! ◑﹏◐
Answer: (The answer is in the image below. Had to write it instead of type it.)
Step-by-step explanation: Differentiate each term with respect to x, then solve for y'.
I hope this helps you out!
13,406,109 pennis into dollars
Answer:
$134,061.09
Step-by-step explanation:
hope this helps
Answer:
134,061.09
Step-by-step explanation:
Divide 13,409,109 by 100
$134,061.09This can also be expressed as 134, 061 dollars, and 9 pennies.
s - k + x; when s = 7, k = 4, x = 6
what does this mean someone help quick
Answer:
you just plug in those numbers... 7-4+6 = 9
The price of oil decreased from $52 per barrel to $48 per barrel. What is the percentage decrease in the price of oil? Round your answer to the nearest tenth of a percent.
Answer:
7.7%
Step-by-step explanation:
Given that,
The price of oil decreased from $52 per barrel to $48 per barrel.
We need to find the percentage decrease in the price of oil. It can be calculated as follows :
[tex]\%=\dfrac{52-48}{52}\times 100\\\\=7.69\%[/tex]
or
= 7.7%
So, the percentage decrease in the price of oil is 7.7%.
Answer:7.7%
Step-by-step explanation:
If Pooh Bear spots a bee hive in a tree at an angle of elevation of 48 degrees, then what is the angle of depression of the Queen Bee who's on that same hive spots Pooh Bear? (Answer in degrees.)
Answer:
∅ = 90 - 48 = 42°
Step-by-step explanation:
became Holy Roman Emperor in 1519
i know the answer but first person to answer gets brailyst
Answer:
Holy Roman Emperor, was the ruler and head of state of the holy Roman Empire.
What is the ninth term of the geometric sequence 81, 27, 9, 3, ... ?
Answer:
59049
Step-by-step explanation:
I calculated it and got 59049
factor the expression by grouping: ax+ay+az+3x+3y+3z
please answer fast
Answer:
(x+y+z)(a+3)
Step-by-step explanation:
ax+ay+az+3x+3y+3z
=(ax+ay+az)+(3x+3y+3z)
=a(x+y+z)+3(x+y+z)
=(x+y+z)(a+3)
ax² + ax, a x2 + a²x
Answer:
ax(x+1)
ax(x+a)
Step-by-step explanation:
ax² + ax
= ax(x+1)
ax² + a²x
= ax(x+a)
hope it helps ☺️
prove that sin x + cos x the whole square is equal to 1 + sin 2x
THE ANS IS 1+sin2x
Step-by-step explanation:
This result follows almost directly from the following:
Christina has trays of cookies for students in her class. Each tray has 6 cookies.
Two of the cookies are Oreos. What fraction of the cookies in 4 trays are Oreos?
Please help me :(
Answer:
1/12
Step-by-step explanation:
4x6=24
2/24=1/12
How many boxes did Lamar sell?
How many boxes did Jina sell?
If you need more Spad
Pythagorean Theorem. Lights and More Lights
The residents of watson Avenue are decorating their houses for upcoming holidays
They have decided to all string lights around the roofs their houses, How many feet of
lighting does Sarina need if she wants to string lights along roof?
Your work should include:
Length of the roof including formulas used (3 points)
A description of the Pythagorean Theorem (3 points)
Calculations (3 points)
Explanations using math terms (3 points)
If you need more space to show your problem
solving go to th next slide
Answer:
Just convert the number to the third digit and the answer will be b