Which equation has the solution x = 5?
Select EACH correct answer.
25x+4=9
3x + 1 = 9
x5+5=6
18−2x=9
11 + 6x = 22
32−4x=12
Answers
Answer:
if your in k12 6.03 Quiz: Solve Equations by Substitution this should be right
Step-by-step explanation:
btw if ur not in k12 it should still be right
Related Questions
I need help with all of It pls
Answers
Answer:
can you retake it
the ans is the 3 one
Step-by-step explanation:
Frank finds 9 coins on the floor of his car, and 3 of them are quarters. If he finds 15 more coins on the ground, at the same ratio as the coins found in the car, how many more coins will most likely be quarters?
Answers
3 is 1/3 of 9, meaning the probability of picking up a quarter is 1/3, if he finds 15 more,
15/3 is 5.
5 coins should be quarters
Answer: 5 coins
Step-by-step explanation:
Frank found 9 coins on the floor of his car, and 3 of them were quarters. This means that 3 out of the 9 coins, or \(\frac{3}{9}\), were quarters.
Simplifying this fraction, we get \(\frac{1}{3}\) of the coins found in the car were quarters.
If Frank finds 15 more coins on the ground at the same ratio, then \(\bold{\frac{1}{3}}\) of these coins will also be quarters. To find out how many quarters he will most likely find, we need to find \(\bold{\frac{1}{3}}\) of 15:
\(\large \frac{1}{3} \times 15 = 5\)
Therefore, Frank will most likely find 5 more quarters on the ground, assuming he finds coins at the same ratio as he did in his car.
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Please help me !!!!!!!!!!!!
Answers
Answer:
yellow pick yellow i know im right
Answer:
cyan 32/135
Step-by-step explanation:
Can someone explain how I solve both of these? I’m sort of lost
Answers
Answer:
#1) Well buying something 15 percent cheaper is like saying your buying something for 85% of its normal price.
Well a tax is adding onto somethign right? A percent means out of a hundred. A 5 percent tax is addding 5 percent to the hundred so really your paying 105 percent of the price. Convert into decimal you get 1.05
So assuming y is the original and the state Tax being 5% then
(y*0.85)1.05 (last option)
#2) Well we now x is adult tickets and y is child.
Adult tickets are $74
Youth is $35
Now we want to know c or total.
So 74x+35y=c (last option)
Answer: 4: C
5:B
Step-by-step explanation:
How many applications will your mother actually use on her new cell phone? Solve the equation you wrote in part b to find the unknown variable.
Answers
Answer:the answer should be 24
Step-by-step explanation:
good luck
HELPS PLZ
guys i dont even know if this is supposed to be here but anyways i have a test tmr and I'm hella nervous right now can anyone help plz thx
Answers
Answer:
how can I help you?and what is the question?
Answer:
just stay calm and relax...being relaxed is very important for performing good in you exam. And also a good sleep is also must for your concentration on the day..
Step-by-step explanation:
Easy math question, earn points! Quickest answer gets points.
Answers
Step-by-step explanation:
an = 3* (sqrt 2)^(n-1) = 192 solve for n
sqrt(2)^(n-1) = 64
n-1 = log 64 / log (sqrt 2) = 12
n = 13
About 14 weeks ago, there were 42 mold spores found in a garden. After a few weeks of observation, it is determined that the number of mold spores in the garden is tripling every 7 weeks.
The number of mold spores, M, at any given time in the garden is equal to the product of the initial amount of spores, I, and 3 to the power of n, where n is the number of times the amount of mold spores has tripled.
How many mold spores are in the garden today?
A. 378
B. 91,854
C. 252
D. 1,134
Answers
Answer:
Im guessing 252 is the answer, 42 mold spores were found 14 weeks ago and each 7 weeks it trples right? so two 7 weeks fit in 14 weeks so we would multiply 42 x 2 and which gives us 84 multiply that by 3 since it triples every 7 weeks. And there's your answer, btw don't take this for granted my math is rusty (':
A local computer store sold 82 laptops this past month. Since the store first opened, it has sold 76 times that number. How many laptops has the store sold since it opened?
a. 5,412
b. 6,232
c. 6,192
d. 5,952
Answers
The store has sold 6,232 laptops since it opened.
Option B is the correct answer.
We have,
Step 1:
Identify the number of laptops sold last month.
The problem states that the store sold 82 laptops in the past month.
Step 2:
Determine the total number of times the store has sold laptops since it opened.
The problem says that the store has sold 76 times the number of laptops sold last month.
So, we need to multiply 82 by 76.
82 laptops * 76
= 6,232 laptops
Thus,
The store has sold 6,232 laptops since it opened which is option B.
Learn more about expressions here:
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Identify the percent of change as an increase or decrease. Then find the percent of change. Round to the nearest tenth of a percent, if necessary.
72 people to 36 people
Answers
Answer:
= 50% decrease
Step-by-step explanation:
There is a percentage decrease of 50% in the number of people from 72 people to 36 people
What is an equation?An equation is an expression used to show the relationship between two or more numbers and variables.
There is a change of 72 people to 36 people, hence:
Percentage change = [(36 - 72) / 72] * 100% = -50%
There is a percentage decrease of 50% in the number of people from 72 people to 36 people
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PLEASE actually give me a real answer I just need suggestions
Describe how to write an equation from a table of values using just the data.
Answers
Answer:
Look that the coordinates and trace those points to a corresponding number on the x or y axis. Then write the first number in the coordinate in the x value and the second number for the y value, repeat the process for the rest of the points.
Step-by-step explanation:
Look at the coordinates and trace those points to a corresponding number on the x or y axis. Then write the first number in the coordinate in the x value and the second number for the y value, repeat the process for the rest of the points
Solve for d.
7(d–1)=6d
please help and sry for putting so many of these!
Answers
answer: D=7
Identify the property: (c + 5t)2 = 2c + 10t
Commutative Property of Addition
Associative Property of Addition
Additive Identity
Multiplicative Identity
Distributive Property
Answers
Answer:
Distributive Property
Step-by-step explanation:
2(c) + 2(5t)
2c + 10t
The histogram shows the number of points scored by a basketball team for one season. A histogram titled points scored in one season shows the number of games in which a certain number of points were scored. The data is as follows. 69 to 76 points: 3 games. 77 to 84 points: 6 games. 85 to 92 points: 8 games. 93 to 100 points: 1 game. According to the histogram, in what percentage of games did the team score between 77 and 92 points? Enter your answer in the box. Round your answer to the nearest percent.
Answers
Find the total number of games with points scored between 77 & 92 pts - 14
To find the percentage divide 14/18 - .777
Multiply .777*100 - 77.7
Round to 78%
Percentage of games the team scored between 77 and 92 is 77.7% .
Given data from the histogram shows the number of games that are played in the range of 77 - 92.
Total number of games played = 18
Number of games played in the range 77 - 92 = 14
Percentage of games played in the range 77-92 = (Number of games played in the range 77 - 92) / (Total number of games played) × 100
Percentage = (14)/(18) × 100
= 77.7% .
Hence the number of games played in the given range is 77.7%.
Learn more about percentage,
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PLEASE HELP NEED THE ANSWER ASAP!!
+100 POINTS AND BRAINLIEST!!
Answers
What is 55 inches in feet?
Answers
Answer:4.58333
Step-by-step explanation:
55 inches is 4.58333 feet
Identify the terms, coefficients, and constants in the expression. 9h^2+8/9p+1
Answers
Answer: Coefficients 9 , Term 9h^2
Step-by-step explanation:
Find the volume of each pyramid. Round to the nearest tenth if necessary.
triangular pyramid: triangle base, 6.1 cm; triangle height, 6.7 cm; pyramid height, 10.4 cm
a
141.7 cm3
b
212.5 cm3
c
53.1 cm3
d
70.8 cm3
Answers
Answer:
B.
Step-by-step explanation:
also if you wouldnt mind giving me brainliest, im just trying to rank up. only if u dont mind though.
The ordered pairs (−2,3), (1,3), (1,−3), and (−2,−3) represent vertices of a polygon on the coordinate plane. What is the area of the polygon? 9 square units 9 square units 36 square units 36 square units 24 square units 24 square units 18 square units. Please help my head hurts and i cant figure this out
Answers
hope this helps if not im sorry i will fill bad if this dont helps
An equilateral triangle is inscribed in a circle, as shown below. The circle has a radius of 5 m and the equilateral triangle has side lengths of 8.66 m. Find the shaded area.
Answers
Easiest method.
Suppose the side of the equilateral triangle is a . Then radius,
R = a/root 3
Explanation: In an equilateral triangle, it’s centroid lies upon it’s altitude. An altitude is the median in an equilateral triangle. So by pythagoras theorem,
H^2 + (a/2)^2 = a^2, where H is the altitude.
Solving this, you’ll get H = [root(3)/2] x a
Now, we know that centroid divides a median (here, median = altitude cause it’s equilateral) in 2:1
So, 2x + x = H
You’ll get x = [root(3)/ 6 ] * a
But we need 2x (from centroid),
Therefore, 2x = [root(3)/3] * a = a / root(3)
But the centroid will be the center of the circle in this case, therefore
R = a / root(3)
This is the easiest possible way, use this shortcut especially in competitive exams!
At a recent football game of 8,450 in attendance, 150 people were asked what they prefer on a hot dog. The results are shown.
Ketchup Relish Chili
54 36 60
Based on the data in this sample, how many of the people in attendance would prefer ketchup on a hot dog?
4,225
3,380
3,127
3,042
Answers
By proportion that is:(54/150) * 8450= 54 * 56 1/3= 3042
Answer:
By proportion that is:(54/150) * 8450= 54 * 56 1/3= 3042
Step-by-step explanation:
Rebecca is playing a video game that involves planting and cutting down trees. She moves up an energy level for each tree she plants, and she moves down a level for each tree she cuts. If Rebecca reaches energy level 10, she will earn bonus points.
Rebecca is currently at energy level 4. The results of her next 3 turns are:
Turn 1: 6 trees cut
Turn 2: 8 trees planted
Turn 3: 1 tree cut
2. What is Rebecca's energy level after Turn 1?
Answers
Answer: -2
if she cuts 6 trees then her energy level will go from 4 to -2
Step-by-step explanation:
i need help asap please
Answers
Answer:
D) and $10.00
Step-by-step explanation:
and i put the work for the second one
Help!!!! the integer that makes the following addition sentence true.
? + (-11) + 12 + =-16
Answers
As you can see the end result will end up with -16
Answer:
-17
Step-by-step explanation:
I will represent the question mark with the variable \(x\).
\(x - 11 + 12 = -16\)
To solve for \(x\), we need to isolate it.
To do this, subtract 12 from both sides.
\(x - 11 + 12= -16\\\underline{\textrm{ } \ \ \ \ \ \ \ \, -12} \ \, \, \, \, \ \underline{-12}\\x - 11 \ \ \ \ \ \: \ = -28\)
Then, add 11 to both sides.
\(x - 11 = -28\\\underline{\ \ \: + \, 11} \ \ \ \, \underline{+ \, 11}\\x \ \ \ \ \ \ \: = -17\)
\(x = -17\)
So, the integer that makes the equation true is -17.
What is the Constant of Proportionality (k)?
Remember.... k = y/x
Write an equation to show the proportional relationship between x and y.
Group of answer choices
y = 2x
y = 7x
y = 1/2x
y = 1/7x
Answers
In triangle ABC, we have AB = 5, BC = 8, and AC = 7, as shown below:
Calculate: cos(angle A), cos(angle B), cos(angle C)
Please don't post any absurd answers, they will be reported
Answers
The angles are;
A = 60
B = 38
C = 82
What is the cosine rule?The cosine rule is a mathematical formula used in trigonometry to determine the lengths of sides of a triangle, given the lengths of two sides and the measure of the angle between them. The cosine rule states that the square of the length of a side of a triangle is equal to the sum of the squares of the lengths of the other two sides, minus twice the product of the lengths of those sides and the cosine of the angle between them.
c^2 = a^2 + b^2 - 2abCos C
7^2 = 5^2 + 8^2 - 2(5 *8) Cos C
49 = 25 + 64 - 80 CosC
-40 = -80 CosC
Cos C = 0.5
C = 60°
b^2 = a^2 + c^2 - 2ac Cos B
5^2 = 8^2 + 7^2 - 2(8 *7) Cos B
25 = 64 + 49 - 112Cos B
Cos B = 38
C = 180 - (60 + 38)
A = 82
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Can you solve this for me? Thank you! :>
Answers
Answer: D. Multiply both sides by 11
Step-by-step explanation:
when you have an equation like that you do the opposite of what the number is thats with the variable
Tell whether each relation is a function. Explain how you know.
3. {(1, 5), (3, 7), (6, 5), (9, 8}
4. {(1, 2, (1, 8), (3, 6), (4, 8)}
Answers
Answer: None of them are a function
Step-by-step explanation: they don't relate
4.) This is not a function because their are two 1’s in the x value
Find the value for x.
Answers
Answer:
x = 19
Step-by-step explanation:
5x = 3x +38
that means 2x = 38
x = 19
Answer:
x=19
Step-by-step explanation:
(3x+38)°=5x°(corresponding angles)
3x°+38°=5x°
38°=5x°-3x°
38°=2x°
38°/2°=2X°/2°
19=x
Please Help ASAP! Rewrite x^4y^2 − 3x^3y^3 using a common factor.
A. 3xy(x^3y − x^2y)
B. 3xy^2(x^2 − x^2y)
C. x^2y(xy − 3xy^2)
D. x^2y^2(x^2 − 3xy)
I think it's B. But I might be wrong.
Answers
Answer:
Step-by-step explanation:
you are completely right please follow your heart <3
You have to look at both x and y and it’s power. You have to look for the lowest power for x and y. For y as you can see that the lowest power is 2. As for x it can be either power of 3 or even 2. When you removed x^2 and y^2 from the equation. The inside parenthesis will be x^2-3xy. Just remember when you divide both x^2 and y^2, you subtract the power.
When you get the answer, please check the answer if it’s the same as the original. Meaning distribution both x^2 and y^2 to inside parenthesis. And for the power, you add them. This way you can double check and see if it’s the same.
