9514 1404 393
Answer:
2 ≤ x
Step-by-step explanation:
Maybe you want to solve ...
54 -10x ≤ 20 +7x
34 ≤ 17x . . . . . . . . . . . . add 10x-20 to both sides
2 ≤ x . . . . . . . . . . . . . . divide by 17
The populations and land areas of four cities in Texas are shown. Which statements are true? Check all that apply. The population density for City B can be found using the ratio 48,592 : 26. The population density for City D can be found using the ratio 258 : 196,429. City A has the greatest population density of the four cities. The population density of City B is greater than that of City C. City D has the lowest population density of the four cities.
Answer:
The population density for city b would be 48,592 ÷ 26
The population density for city b is more than the city c
And, the city d contains the lowest population density
Step-by-step explanation:
The computation is given below:
As we know that
Population density = Population ÷ Area
So
For city A = 2,195,914 ÷ 1,553 = 1413.98
For city B = 48,592 ÷ 26 = 1868.15
For city C = 1,257,676 ÷ 999 = 1258.93.
For city D = 196,429 ÷ 258 = 761.35.
The following are the true statements:
The population density for city b would be 48,592 ÷ 26
The population density for city b is more than the city c
And, the city d contains the lowest population density
Answer:
A, D, E
Step-by-step explanation:
Just did it on edge!
need help plz help me
Answer:
The last one t/5-6=-3
Step-by-step explanation:
All you have to do is plug in 15 to each equation, knowing this if you add 15 into this equation you would get 15/5-6=-3 and this is true because 15/5=3, 3-6=-3!
I hope this helps and have a great day!
Write down the gradient of the line
(1 Point)
y=1/2x
Answer:
[tex]\frac{1}{2}[/tex]
Step-by-step explanation:
The equation of a line in point- slope form is
y = mx + c ( m is the slope ( gradient ), c is the y- intercept )
y = [tex]\frac{1}{2}[/tex] x ← is in point- slope firm
with gradient = [tex]\frac{1}{2}[/tex]
lead has a density of 11.35g/cm'3. a lead ball weighs about 2kg. what is the radius of this ball
Answer:
The radius of the ball is 3.48 cm
Step-by-step explanation:
Density
The density of a substance is the mass per unit volume. The density varies with temperature and pressure.
The formula to calculate the density of a substance of mass (m) and volume (V) is:
[tex]\displaystyle \rho=\frac{m}{V}[/tex]
The density of lead is \rho=11.35\ g/cm^3 and the mass of a ball of lead is m=2 kg=2,000 g. We can calculate the volume by solving for V:
[tex]\displaystyle V=\frac{m}{\rho}[/tex]
[tex]\displaystyle V=\frac{2000\ g}{11.35\ g/cm^3}[/tex]
[tex]V=176.2115\ cm^3[/tex]
Since the shape of the object is a sphere, and the volume of a sphere of radius r is:
[tex]\displaystyle V=\frac{4}{3}\cdot \pi\cdot r^3[/tex]
We can solve for r and obtain:
[tex]\displaystyle r=\sqrt[3]{\frac{3V}{4\pi}}[/tex]
Substituting:
[tex]\displaystyle r=\sqrt[3]{\frac{3*176.2115}{4\pi}}[/tex]
[tex]\displaystyle r=\sqrt[3]{42.0674}[/tex]
[tex]\boxed{r=3.48\ cm}[/tex]
The radius of the ball is 3.48 cm
Write and solve a proportion to answer the question.
42 is what percent of 80?
42
р
100
80
p= %
Answer:
the ans. is 52.5 percent
2) k+k-72
Greatest common factor?
Answer:
2!!
Step-by-step explanation:
Lainey bought a set of 202020 markers for \$6$6dollar sign, 6.
What is the cost of 111 marker?
Answer:
$666
Step-by-step explanation:
6*111
= 666
Answer:
6
Step-by-step explanation:
YES
Solution of this system of equations. (Write it as a point)
Evaluate f(x)=−7x−5 when x=−6.
f(−6)=
Answer:
f(_6) = _7(_6)_5
=42_5
=37
What is the slope of the line shown below?
(1,7)
(3,5)
-10
-10
O A.
O B.
1
2
O c. 1
O D.-1
Given;
The graph of a line.
To find:
The slope of the line.
Solution:
From the given graph it is clear that the line passes through the points (1,7) and (3,5).
So, the slope of the given line is
[tex]m=\dfrac{y_2-y_1}{x_2-x_1}[/tex]
[tex]m=\dfrac{5-7}{3-1}[/tex]
[tex]m=\dfrac{-2}{2}[/tex]
[tex]m=-1[/tex]
Slope of the line is -1.
Therefore, the correct option is D.
I really need help plzzzzz
Answer:
All similar, see belowStep-by-step explanation:
Q1
Angles
26° & 64° & 90°AA similarityQ2
Ratios of corresponding sides:
6/8 = 9/12 = 12/16 ⇒ 3/4SSS similarityQ3
Angle C is vertical
∠ACB ≅ ∠DCERatios of corresponding sides:
9/15 = 18/30 ⇒ 3/5SAS similarityI wanna know why Charli D’amilo is famous. Someone tell me please it’s on a test.
Answer:
monke explanation teen dance teen look good while dance teen famous
Step-by-step explanation:
Can someone explain the process of getting to Angle A? I know the answer is 44.1 but I need to show my work so can someone show me the process of getting the answer and please explain! Thank you!!
Answer:
Step-by-step explanation:
First you have to calculate CB in order to use sin law to calculate ∠A
CB=[tex]\sqrt{18.4^{2} -13.2^{2} }[/tex]
CB=12.8(correct to nearest tenth)
After that, use sin law to calculate ∠A,
[tex]\frac{18.4}{sin90} =\frac{12.8}{sinA}[/tex] or [tex]\frac{sin90}{18.4} =\frac{sinA}{12.8}[/tex]
sinA=0.695...
A=44.079...
=44.1(corrext to the nearest tenth)
Is that clear enough for you?
Mark's football team has scored about 24 points each game. They played 12 games this season.
What is the best estimate for the total number of points they scored in the season?
Answer:
288 points
Step-by-step explanation:
24 × 12 = 288
hope this helps...
Step-by-step explanation:
24*12=288 points (ans)
19. Find the measure of angle ABC.
Answer:
72
Step-by-step explanation:
6x+6x+8x=180 (∠ sum of Δ)
20x=180
x=9
∠ABC=8(9)
=72
Please help for math in 2 min or less
Point N is on line segment ABGiven AN = 14 and NB =21. Determine the length of the line AB.
Alice gets a job selling boots, and is given the option of wages plus commission, or commission only. In the first option, she would earn $33 in wages for each day of work, plus $2.50 for every pair of boots sold. Under the commission only option, she would earn no wages, and $3.25 for every pair of boots sold. How many pairs of boots would Alice have to sell in one day to make the two options equal?
Answer:
44 pairs of boots
Step-by-step explanation:
As per two options given to Alice,
1). Wages of $33 for each day work + commission of $2.5 for every pair sold.
If Alice sells x pairs of boots in a day, then total amount earned by Alice,
= (33 + 2.5x)
2). Commission of $3.25 for every boot sold.
If Alice sold x pairs of boots, total earnings of the day = 3.25x
If earning of Alice is equal in both the plans,
(33 + 2.5x) = 3.25x
3.25x - 2.5x = 33
0.75x = 33
x = 44
Therefore, for the sales of 44 pairs of the boots Alice will earn equal by both the plans.
Mark, Paul and Brian share some sweets in the ratio 1:3:5. Mark gets 14 sweets. How many
did Brian get?
Answer:
7
Step-by-step explanation:
hope it helps
A shoe store uses a markup rate 40% when determining the retail price of its items. If the store pays $42.25 for a pair of shoes wholesale, what will be the retail price of that pair of shoes?
|2n|-4=8 solve for n
Answer:
n = ± 6
Step-by-step explanation:
absolute value equations usually produce 2 solutions
to get the positive solution just solve normally: 2n - 4 = 8
2n = 12
n = 6
to get the negative solution you must take what is in the absolute value bars and multiply by negative one: -(2n) - 4 = 8
-2n - 4 = 8
-2n = 12
n = -6
Choose all of the equations for which x = 2 is a solution.
A. x + 3 = 5
B. x + 2 = 8
C. x + 1 = 1
th
D. x - 2 = 4
E. x - 7= -5
Answer:
i do beleve its ether A or E
Step-by-step explanation:
In 5 days, Lan jogged a total of 15 miles. She jogged the same number of miles each day. How many miles did Lan jog each day?
75 miles
if u do 15x5 you will get 75 and that's how many miles you will get
Suppose a city with a population of 200,000 has been growing at a rate of 3% per year. If this rate continues, find the population of this city in 21 years. Round to the nearest whole number as needed (1 point)
Answer:
Growing at a rate of 3% per year : 200,000 x 3% = 6,000 population/ year
The population of this city in 21 years : 200,000 + ( 6,000 x 21 ) = 326,000 p
Step-by-step explanation:
The population of the city after 21 years is given by the exponential equation A = 372,059
What is exponential growth factor?The exponential growth rate is the value which increases exponentially over a period of time and
x ( t ) = x₀ ( 1 + r )ⁿ
x ( t ) is the growth at time t
x₀ is the initial value growth at time t = 0.
r is the growth rate expressed as percentage when r > 0
And , the decay rate when r < 0 , in percentage
t is the time in discrete intervals and selected time units
Given data ,
Let the exponential equation be represented as A
Now , the value of A is
Let the initial population of the city be x₀ = 200,000
Now , let the number of years be n = 21 years
Let the percentage of increase be r = 3 %
And , exponential growth formula is given by
x ( t ) = x₀ × ( 1 + r )ⁿ
x ( 21 ) = 200,000 ( 1 + 0.03 )²¹
On simplifying the equation , we get
x ( 21 ) = 200,00 ( 1.03 )²¹
x ( 21 ) = 200,000 ( 1.86029457 )
On further simplification , we get
x ( 21 ) = 3,72,058.914
On rounding the population , we get
x ( 21 ) = 372,059
Therefore , the value of A is 372,059
Hence , the exponential growth of the population after 21 years is 372,059
To learn more about exponential growth factor click :
https://brainly.com/question/13674608
#SPJ2
If you want to buy an item in a store that costs $48.50 and is on sale for 30% off, then how much would the item actually cost you after the discount? Round to the nearest cent.
Answer:
35.99
Step-by-step explanation:
With Out Tax 35.99
With Tax 33.95
The rainfall amount last year was 6 inches below normal. The rainfall this year was 13 inches more than last year. What is the difference between the rainfall amount this year and the normal amount of rainfall? (Hint: Draw a number line to help you visualize the scenario)
Answer:
7
Step-by-step explanation:
The term difference means to subtract. Therefore, 13in - 6in, is equal to 7 inches.
13-6=7
Hope this Helps!!!
What is the difference between the mean of the population and the mean of the sample? 0.24 0.36 2.40 2.64
Answer: 0.24
Step-by-step explanation:
Answer:
0.24
Step-by-step explanation:
i took the test i got it right!
Gaby has 89 friendship bracelets. She has 4 friends, Lulu, Brianna, Brittany and Mariah. When, they get the bracelets are they all going to have the same amount? Why or why not?
HELP MY BROTHER HES 8 YRS OLD!!!!! IF YOU ANSWER IT CORRECTLY YOU WILL GET BRAINLIEST
Answer:
They will not get the same amount of bracelets
Step-by-step explanation:
You cannot divide 89 by 4 to get an equal number (4 is not a factor of 9)
Answer:
3 of the friends plus Gaby will get 17 bracelets and 1 of them will get 4/5 of the bracelets
Step-by-step explanation:
89 divide by 5 = 17.8
-6x - y =23
y = 4x + 7
Answer:
x = -28/39, y = 7/39
Step-by-step explanation:
Graph both and find the corresponding points.
I need help! ASAP please!
Answer:
60 f+80=287
Step-by-step explanation: