Answers
Answer:
The answer is b =9
Step-by-step explanation:
20:12=15:b
5:3=15:b
cross multiply
5×b=3×15
5b=45
divide both sides by 5
b=45÷5
b=9
Related Questions
Libby earns $10 each hour for babysitting. Let m = the money she earns, and t = the time in hours she is babysitting. What equation represents this proportional relationship?
Answers
Answer:
$10t=m
Step-by-step explanation:
If for each hour is $10.
She would earn the number of hours times $10.
Example: She did babysitting for 4 hours this weekend. The equation is $10(4)=m or $10 x 4 = m. m=40
A pair of listening posts is 4,000 ft apart. They both pick up a sound, but one listening post records the sound 1.5 seconds after the other listening post. Assume sound travels at 1,100 ft/s. Which equation can be used to determine possible locations of the origin of the sound?
Answers
Answer:
its B
x^2/680,625 - y^2/3,319,375 = 1
The equation that be used to determine possible locations of the origin of the sound [tex]\dfrac{ x^2}{680,625} - \dfrac{ y^2}{3,319,375 }= 1[/tex]
What is a system of equations?A system of equations is two or more equations that can be solved to get a unique solution. the power of the equation must be in one degree.
A pair of listening posts is 4,000 ft apart.
They both pick up a sound, but one listening post records the sound 1.5 seconds after the other listening post.
Assume sound travels at 1,100 ft/s.
The equation would become
[tex]\dfrac{ x^2}{680,625} - \dfrac{ y^2}{3,319,375 }= 1[/tex]
Learn more about equations;
https://brainly.com/question/27056029
#SPJ2
Plzzzz brainlest I swear
Answers
Answer: 8
Step-by-step explanation: on the left chain, there are 5 4’s, so 4 times 5 is 20 Because you know that, subtract it from 60 to only have the W’s values. So 60-20 is 40 and because there is 5 w’s do 40/5 is 8. Therefore, the value of the w’s is 8 and the value of the 4’s is 20
Answer:
1024.
Step-by-step explanation:
4x4x4x4x4= 1024
I hope this is correct and I hope this helps. My apologies if it´s wrong.
An equilateral triangle has a perimeter of 24 centimeters. If the triangle is dilated by a factor of 0.5, what is the length of each side of the new triangle?
Answers
Answer:
4
Step-by-step explanation:
To find the side length of the original triangle:
24/3=8 (because it is an equilateral triangle).
Because the triangle is dilated by a factor of 0.5 and the triangle is equilateral, the side lengths of the new triangle is
8*0.5=4
how to write "The product of a number and -2 increased by 10"?
Answers
2(x) + 10
x • 2 + 10
x(2) + 10
In triangle PQR, the angles are in the ratio 2 : 3 : 4. Find all the angles (urgent)
Answers
Answer:
40°, 60° and 80°
Step-by-step explanation:
sum the parts of the ratio, 2 + 3 + 4 = 9 parts
Divide 180° ( sum of angles in a triangle) by 9 to find the value of one part of the ratio.
180° ÷ 9 = 20° ← value of 1 part of the ratio , then
2 parts = 2 × 20° = 40°
3 parts = 3 × 20° = 60°
4 parts = 4 × 20° = 80°
The angles in the triangle are 40°, 60°, 80°
Ms. Lynette earns $19.50 an hour when she works overtime. She worked overtime twice this week. One day she worked 3 hours of overtime. Her total overtime pay for the week is $146.25.
Write an equation to find the number of overtime hours she worked on the second day.
Answers
Answer:
4 1/2 hours
Step-by-step explanation:
Equation(s):
--
(146.25 - (19.50 x 3)) ÷ 19.50 =
4.5 or 4 1/2 hours
--
#LFM #Brainly
The table shows a relationship between values of x and y.
X. 2 3 4 6
Y. 7 17 31 49
Which of the following equations describes the relationship in the table? A. Y = 10x - 3
B. y = x2 + 3
C. y= 2x2 + 1
D. y=2x² - 1
Answers
Answer:
The answer is D.
Step-by-step explanation:
For each of these questions, you just have to substitute one of the x values, where the X is in the equation. Then the equation is true is the Y value you solve for is the same as the corresponding Y value.
Identify the best measure of Sin C
Answers
Answer:
[tex]\sin C=\frac{28}{35}[/tex]
Step-by-step explanation:
In a right triangle, [tex]\sin\theta =\frac{\text{opp}}{\text{hyp}}[/tex]. In this case, the side opposite to angle [tex]C[/tex] is 28 and the hypotenuse is 35. Therefore, the exact value of [tex]\sin C[/tex] is [tex]\boxed{\frac{28}{35}}[/tex].
4. Which of the following equations can give an estimated product of 224?
A. 2.54 x 6.85
C. 14.04 x 15.61
B.10.6 x 5.8
D. 17.6 x 16.9
Answers
The black triangles are similar. Identify the type of segment shown in blue and find the value of the variable. altitude base hypotenuse median Question 2 y=
Answers
Answer:
Hello your question is incomplete attached below is the complete question
answer : ALTITUDE , x = 24
Step-by-step explanation:
The type of segment shown in Blue is ALTITUDE segment
This is because
Angle BCD = Angle CEG (opposite angles)
Angle ACD= Angle CFG (opposite angles)
Angle ADC = Angle BCD= Angle CEG = Angle CFG
It can be seen that the triangles are similar hence
18/27=16/x
therefore X =24
Expand "6y" in algebra
Answers
Answer:
6 x y
Step-by-step explanation:
Expanded
Or add y 6 times
y + y + y + y + y + y
Answer:
Step-by-step explanation:
y + y + y + y + y + y
Hope that helps!
Select all expressions that describe the expression 2 + 5Y
A) 1 plus 5 plus Y
B) 2 plus 5 times a number Y
C) 2 plus the product of 5 and a number Y
D) The sum of all the numbers times Y
E) the sum of 2 and 5Y
F) 2 plus Y plus Y plus Y plus Y plus Y plus Y
Answers
Answer i think b, and f.
Step-by-step explanation:
Let me know if i am wrong.
(-2,19)(10,-11) find the slope
Answers
Answer:
-5/2
Step-by-step explanation:
Slope = [tex]\frac{y_{2}-y_{1}}{x_{2}-x_{1}}\\\\[/tex]
[tex]= \frac{-11-19}{10-[-2]}\\\\=\frac{-30}{10+2}\\\\=\frac{-30}{12}\\\\=\frac{-5}{2}[/tex]
Either enter an exact answer in terms of T or use 3.14 for 7 and enter your answer as a decimal.
d=2
Answers
Answer:
N CCX XN
Step-by-step explanation:
PLEASE HELP I NEED AN ESSAY AS SOON AS POSSIBLE OR ASAP!!!!!! WRITE A 10 - 20 SENTENCE ESSAY AND I WILL GIVE YOU 30 POINTS PLEASE HELP
Answers
Answer:
what does it need to be about?
Step-by-step explanation:
Depending on traffic, Danielle’s drive to the park is p minutes from work and 90 minutes from the park to her home. If Danielle’s total commute (c) took two hours today, how long was Danielle’s drive to the park from work? Set up your equation when total commute time (c) depends on the time to drive to the park (p).
Equation: ______________
p=88 minutes
p=70 minutes
p=40 minutes
p=30 minutes
Answers
Answer:
The equation is;
p + 90 = 120 minutes
Danielle’s drive from work to the park took 30 minutes ( p = 30 minutes)
Step-by-step explanation:
Here, we want to write and solve an equation
Here, we want to get the time taken by Daniele from the park to work
From the question, the total commute is two hours
since 1 hour is 60 minutes, it follows that 2 hours is 120 minutes
Now, if we added the time taken to commute both journeys, we have the total as 2 hours
This means;
p + 90 = 120 minutes
p = 120 - 90
p = 30 minutes
Aaron buys a game for $25.00 and has to pay $2.00 for tax. What is sales tax rate?
Answers
Answer:
$12.50
Step-by-step explanation:
divide
A side of the triangle below has been extended to form an exterior angle of 116. Find the value of x
Answers
Answer:
[tex]x=64 \textdegree[/tex]
Step-by-step explanation:
From the question we are told that
Angle of extension [tex]y=116 \textdegree[/tex]
Generally the angle formed at x is mathematically given as
[tex]x=180-116[/tex]
[tex]x=64 \textdegree[/tex]
Answer:
26°
Step-by-step explanation:
A side of the triangle below has been extended to form an exterior angle of 116°. Find the value of xx.
The answer is 26° i tried 64 and it was incorrect.
a car leaves a stoplight and accelerates 15 seconds, and its speed reaches 60 km/hr. how fast did this car accelerate during this time?
Answers
Here are the
the first 5 terms of a sequence.
29 25 21 17 13
Find an expression, in terms of n, for the nth term
of this sequence.
Answers
Step-by-step explanation:
hope it help you.......
Anyone that answers this right will get 100+ points, any wrong answers or spamming will be reported.
Answers
Answer:
na
Step-by-step explanation:
ez I did this in 3rd grade
The probability that it rains is about 20%.
The probability that the bus is late is about 8%.
The probability that it rains and the bus is late is about 3%.
The probability that the train is late is about 5%.
The probability that it rains and the train is late is about 1%.
what can you conclude about the rain and the students commute on the bus and train?
Answers
P(A)=0.2
Let B be the probability that the train is late = 0.05
P(B)=0.05
A and B is A∩B= the probability it rains and the bus is late =0.01
probability pf (A and B)=0.01
7) independent events are related by expression:
A∩B=P(A)*P(B)
=0.2*0.05=0.01
check :
p(A|B)=P(A∩B)÷P(B)=0.01/0.05= 0.2
the two event are independent
The table below represents a linear function. Identify the rate of change of the function.
Answers
Answer:
the function is f(x) = 7/4x - 2
therefore the average rate of change is 7/4
I need help ASAP!! can u do this? :)
Answers
PLEASE HELP IMMIDEATIALY BFHBGDWAHDW
Answers
Answer:
zeros and AoS
Step-by-step explanation:
zeros, x = (1 , -7)
AoS:x =-1
• 1.Find the scale factor of a blueprint if the scale is 3 inches = 6 feet.
A. 1
B. 24
C. 3
D. 72
Answers
Answer:
B
Step-by-step explanation:
Answer: B. 24 (as a fraction: 1/24)
4 pairs of shoes cost $80. What is the cost 7 pairs of shoes ?
Answers
Answer:
7 pairs = 140
Step-by-step explanation:
7 pairs of shoes will cost $560
explanation: 80 x 7 is 560
In the diagram below, AC intersects ABDE at B. Choose True or False for each statement
Answers
Answer:
false, true . false
Step-by-step explanation:
if u want an explanantion you can ask me :)
Answer: a. True b. True c. False
Explanation:
a. 65+25 =90 complementary angles add up to 90°
b. 65 + b + 25 = 180
90 + b = 180
b = 180 - 90
b = 90
Check-
65 + 25 + 90 = 180
90 + 90 = 180
180 = 180 ✅
c.not vertical angles because they aren’t across from eachother
the cost of a pair vans is 58.65 you have a 40% off coupon how much is 40% off coupon
Answers
Answer:
$23.46 off
Step-by-step explanation:
final price: $35.19
Answer:23.46
Step-by-step explanation:
58.65 divided by 0.40 which is equivalent to 40%