Answer:
13
Step-by-step explanation:
19=209
?=143
19*143
=2717
2717/209
=13
How many gallons of 40% antifreeze should be mixed with 10 gallons of 80% antifreeze to obtain a 65% antifreeze mixture?
Equation:
alcohol + alcohol = alcohol
0.40x + 0.85*10 = 0.65(x+10)
----
40x + 85*10 = 65x + 65*10
20*10 = 15x
-----
x = (2/3)20
---
x = 13 1/3 gallons (amt. of 40% solution needed)
what is the solution to this equation: 7m to the 2 power + 6m - 1 = ?
Answer:
7m² + 6m - 1
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDASAlgebra I
Combining Like TermsStandard Form: ax² + bx + c = 0Step-by-step explanation:
Step 1: Define expression
7m² + 6m - 1
Step 2: Simplify
The expression cannot be simplified further.
The difference between John and
Jane's college tutition was
$1,130.75. If Jane's tuition was
$45,000.00, what are the two
possible costs for John's tuition?
Answer:
$46,130,75 or $43,869.25
Step-by-step explanation:
What is the first step in solving for z in the equation
5z−4=26?
Answer:
Step-by-step explanation:
This is the completed answer.
5z - 4 = 26
5z−4+4=26+4
5z=30
Divide both sides by 5.
5z/5 = 30/5
z=6
Determine a series of transformations that would map polygon ABCDE onto polygon A'B'C'D'E
Answer:
let me get the answer
Step-by-step explanation:
Select the correct answer.
which equation represents the line that is parallel to y= 3 and passes through (-2,-8)?
А.
x = -2
B.
x=3
C. y=-8
D.y= 3x - 2
Answer: -8
Step-by-step explanation:
other people got -8 so I'm pretty sure this is the answer.
what is the best partial quotient to 296dividedby4
A hot air balloon is at 14 feet above sea level, if you remove 7 sandbags, where
would the hot air balloon be? ( 1 feet = 1 sandbag)
Answer:
21 feet above sea level.
Step-by-step explanation:
If you remove weight, a hot balloon goes up. 14+7(feet) = 21 feet above sea level.
Answer:
21ft
Step-by-step explanation:
find the values of x and y pls help
Answer: x = 39°, y = 5
Step-by-step explanation:
∠ADB and ∠CDB are same which means it's 90 degrees
and the triangle is isosceles, so ∠A=∠X and ∠ABD=∠CBD
180= ∠A + ∠B + ∠D
180= 51 + 90 + ∠D
∠D = 39 = x
for y I told you this is the isosceles triangle
so , AD = DC
Which weighs more: a watermelon that weighs 7.5 kilograms or a baby that weighs 12 pounds? Explain your reasoning. (Note: 1 pound is about 0.45 kilograms and 1 kilogram is about 2.2 pounds.)
Answer:
The watermelon.. I think
Step-by-step explanation:
Multiply 7.5 times 2.2 and you get 16.5, which is greater than 12. Please correct me if wrong on this because everybody makes mistakes.
Consider the function. f(x) = 2x(x - 1)
What are the values of
f(0)=
f(3)=
f(-4)=
Answer:
3
Step-by-step explanation:
Which man made object is likely to endure long after humans have disappeared from New York city?
A. Ceilings
B. Sewer systems
C. Steel l-beams
D. Bronze sculptures
Bronze sculptures endure long after humans have disappeared from New York city.
What is Man made objects?Human-made materials are those that humans have manufactured. Such examples are rubber, paper, plastic, furniture, and clothing. Artificial satellites are man-made. They take off from the Earth.
As, Bronze is an extremely robust substance that can withstand many circumstances that softer metals cannot.
Utilizing this metal for art pieces is fantastic because it requires no maintenance and upkeep and can survive for hundreds of years, enhancing its worth even further.
Also, Bronze is last long than Steel.
Thus, Bronze sculptures endure long after humans have disappeared from New York city.
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What is the fractional equivalent of repeating decimal 0.5
The fractional equivalent of the repeating decimal 0.5 is 5/9.
To convert the repeating decimal into a fraction, we can assign a variable, let's say x, to the repeating decimal. In this case, x = 0.5555...
Next, we multiply both sides of the equation by a power of 10 that will eliminate the repeating part.
10x = 5.5555...
Now,we subtract the original equation from the new equation to eliminate the repeating part:
10x - x = 5.5555... - 0.5555...
9x = 5
Simplifying the equation, we get:
x = 5/9
Therefore, the correct answer is A. 5/9.
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The complete question is
What is the fractional equivalent of the repeating decimal 0.5?A.5/9B.1/2C.5/99D.5/100
Please help me I don’t get this Write the equation of the line that is parallel to y=3x-2 and goes through the points (-4,2)
Four members from a 12 -person committee are to be selected randomly to serve as chairperson, vice-chairperson, secretary, and treasurer. The first person selected is the chairperson; the second, the vice-chairperson; the third, the secretary; and the fourth, the treasurer. How many different leadership structures are possible?
Answer:
11880 ways
Step-by-step explanation:
We can solve this problem in two ways. I'm going to show you how to do both.
We have 12 persons and are to choose a chairperson, a vice chairperson, secretary and a treasurer. So we are picking 4 members our of 12 persons.
From this 12, when we pick out one member, we are left with 11members. From 11, if we pick out another one, we have 10 left. From 10, if we pick out another member we have 9 left.
Such that
12 x11 x10x 9= 11880
These are the total different leadership structures possible.
Another way to solve this is by permutation method.
nPr
12!/(12-4)!
= 12!/8!
= 11880 ways
round 0.918 to the nearest whole number
9
1 point
What postulate or theorem justifies the congruence statement AABE – ACDE?
B
x
SSS
SAS
ASA
AAS
Answer:
okay i will answer but i dont see the question
Step-by-step explanation:
Simplify the given expression. 2(-36-3i)+(5+2i)(12-2i)
Answer:
-8+8i
Step-by-step explanation:
(-72-6i) + (60-10i+24i-4i^2)
(-72-6i) + (60+14i+4)
-72+64+8i
-8+8i
PLEASE HELP ASAP
Simplify the expression.
Log(x^4) - log(x^3)
A. Log(x)
B. Log(x^4-x^3)
C. Log(x^4+x^3)
D. Log(x^7)
Answer:
Log(x)
Step-by-step explanation:
Jeff has recorded the cost of insurance premiums on his car for a particular insurance company.
Daniel pays $1,150 per year for insurance premiums on his car. Whose unit rate is lower in terms of cost per year, and what is the rate?
Answer:
For 1 year Jeff pays $1200.
For 6 years he pays 7200 / 6 = 1200 per year.
For 9 years he pays 10800 / 9 = 1200 per year.
Jeff's unit rate is $1,200 per year.
Daniel pays $1,150 per year.
150 is less than 1200, so the answer would be:
A. Daniel's unit rate is lower. It is $1,150 per year
help please fill out empty spots
Answer:
See the attached image below for the filled out chart.
First box = 0.1Second box = 0.1Third box = 4Fourth box = -3Fifth box = 3Sixth box = -1===================================================
Explanation:
Part 1
Pick any term and subtract off its previous term
So for instance 4.2 - 4.1 = 0.1
Or you could say 4.3-4.2 = 0.1
Whichever pair you pick, you should find that the common difference is 0.1
This means we add 0.1 to each term to get the next term. Therefore, the recursive rule is [tex]a_n = a_{n-1} + 0.1[/tex] which says "add 0.1 to the (n-1)th term to get the nth term". The (n-1)th term is the term just before the nth term.
The first term is [tex]a_1 = 4[/tex] as shown in the given sequence 4, 4.1, 4.2, ...
------------------------------
Part 2
We'll follow the same idea as part 1.
Subtract any two adjacent terms
-10-(-7) = -10+7 = -3
We add -3 to each term to get the next. This is the same as subtracting 3 from each term, which is reflected in [tex]a_n = a_{n-1}-3[/tex]
The first term is [tex]a_1 = -1[/tex]
Everything is summarized in the diagram below.
At the end of a snow storm, Riley saw there was a lot of snow on her front lawn. The temperature increased and the snow began to melt at a steady rate. The depth of snow on Riley's lawn, in inches, can be modeled by the equation S = 13 – t, where t is the time, in hours, after the snow stopped falling. What is the x-intercept of the equation and what is its interpretation in the context of the problem?
Answer:
The x-intercept of the function is 13 which represents the number of hours until all the snow has melted.
Step-by-step explanation:
Since there were 0 inches of snow on the lawn after 13 hours, the x-intercept of 13 represents the number of hours after the storm stopped when all of the snow had melted away.
Have a good day :)
The x-intercept of the function is 13 which represents the number of hours until all the snow has melted.
What is coordinate geometry?A coordinate plane is a 2D plane that is formed by the intersection of two perpendicular lines known as the x-axis and y-axis. A coordinate system in geometry is a method for determining the positions of the points by using one or more numbers or coordinates.
Since there were 0 inches of snow on the lawn after 13 hours, the x-intercept of 13 represents the number of hours after the storm stopped when all of the snow had melted away.
Hence, the x-intercept is 13.
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if you ran 4 miles in 36 minutes how many minutes would you have to run in one mile?Explain
Answer:
9 minutes
Step-by-step explanation:
Use interval notation to express the set of real numbers $x$ that satisfies the inequality $-2 \leq x < 5$.
Answer:
[-2, 5)
Step-by-Step Explanation:
The solution set of the given inequality {x ;-2 ≤ x < 5} will be; [-2, 5).
What is inequality?Inequality is defined as the relation which makes a non-equal comparison between two given functions.
Given that the inequality y = {x ; -2 ≤ x < 5}
WE are asked to find the solution set for the given inequality;
⇒ y={x ; -2 ≤ x < 5} i.e domain= [-2, 5)
⇒y=x ∀ x ∈ [-2, 5)
The solution of the given inequality;
x ∈ [-2, 5)
Therefore, The solution set of the given inequality {x ;-2 ≤ x < 5} will be; [-2, 5).
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Question 1 of 20:
Select the best answer for the question.
1. Will bought 3 college textbooks. One cost $32, one cost $45, and one cost $39.
What is the average price of his books? Choose the statement that correctly
calculates the average.
A. $32 + $45 + $39 : 3
B. $32 : 3 + $45 : 3 + $39
O C.3 × $32 + $45 + $39
D. ($32 + $45 + $39) = 3
Mark for review (Will be highlighted on the review page)
Next Question >>
Answer:
I would have to say A) 32 + 45 + 39: 3
Step-by-step explanation:
This is because when finding the average of literally anything, you want to add up all the numbers, and then divide the sum of it by the numbers you added up.
for instance: 32 + 45 + 39 = 116. now, we need to divide by 3 because we added 3 numbers up.
116 divided by 3 = x
x is our average cost per books.
hope this helped, gl on your test!! :')
Who can access your credit report?
a friends
b. employers
c. neighbors
d. teachers
Please select the best answer from the choices provided.
Ο Α
С В
ОС
D
Answer:
B) employers
Step-by-step explanation:
EDGE 2021
Last month you had 8 wins while playing fortnight. This month you had 5. What was your percent of change?
I need work shown.
Answer:
%62.5
Step-by-step explanation:
Im pretty sure you jsut divide 5/8 and then multiply by 100 to get a percent
5/8=.625
.625*100=62.5
%62.5
Convert the measurement. 5 days = sec
Answer:
5days = ? sorry I don't understand sorry
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Every day has 24 hours .
Every hour has 60 minutes .
Every minute has 60 seconds.
Thus ;
[tex]5 \times 24 \times 60 \times 60 = 120 \times 60 \times 60 = \\ [/tex]
[tex]2 \times 60 \times 60 \times 60 = [/tex]
[tex]2 \times {6}^{3} \times {10}^{3} = [/tex]
[tex]2 \times 216 \times 1000 = [/tex]
[tex]432 \times 1000 = [/tex]
[tex]432,000 \: \: \: seconds[/tex]
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the cement truck can pour 20 pounds of cement I 45 seconds how long will it take the cement truck to pour 150 pounds of cement
Which is equivalent to −2/5
Answer:
-0.4
Step-by-step explanation:
-2 divided by 5
Answer:
-4/10
Step-by-step explanation:
There are many more this is one of them.