Answer:
19.7%
Step-by-step explanation:
Answer two questions about Equations AAA and BBB:
A.3x−1=7
B.3x=8 1
How can we get Equation BBB from Equation AAA?
Choose 1 answer:
(Choice A)
A
Multiply/divide both sides by the same non-zero constant
(Choice B)
B
Multiply/divide both sides by the same variable expression
(Choice C)
C
Add/subtract the same quantity to/from both sides
(Choice D)
D
Add/subtract a quantity to/from only one side
2) Based on the previous answer, are the equations equivalent?
In other words, do they have the same solution?
Choose 1 answer:
(Choice A)
A
Yes
(Choice B)
B
No
Answer:
1. C Add/subtract the same quantity to/from both sides
2. A Yes
Step-by-step explanation:
Start with Equation A.
3x - 1 = 7
Add 1 to both sides.
3x = 8
First question:
How can we get Equation B from Equation A?
Answer:
C Add/subtract the same quantity to/from both sides
Second question:
Based on the previous answer, are the equations equivalent?
Since by doing a valid step (adding 1 to both sides) Equation A became Equation B, the two equations are equivalent.
Answer:
A Yes
The picture below shows a pole and its shadow:
A pole is shown with a right triangle side. The right triangle has hypotenuse 221 cm and base 21 cm.
What is the height of the pole?
121 centimeters
220 centimeters
225 centimeters
Answer:
the height of the pole is 220 centimeters
Step-by-step explanation:
The computation of the height of the pole is shown below
Here we applied the pythagoras theorem
Given that
Hypotenuse = 221 = c
And, base = 21 cm = b
a^2 + b^2 = c^2
So, the height is
= 21^2 cm - 221 cm
= 441 cm - 221 cm
= 220 cm
Hence, the height of the pole is 220 centimeters
Catarina and Tom want to buy a rug for a room that is 8 by 12. They want to leave an even strip of flooring uncovered around the edges of the room. How wide a stip willhave if they buy a rug with an area of 32 square feet
Answer:
The strip would be 2 ft wide
Step-by-step explanation:
Let the strip be x ft long
since it is on either sides, it will take a space each of 2x
So the dimensions of the rug will be;
(8-2x) and (12-2x)
The product of these will give the area of the rug
We have this as;
(8-2x)(12-2x) = 32
96-16x-24x + 4x^2 = 32
4x^2-40x + 96-32 = 0
4x^2 -40x + 64 = 0
x^2 - 10x + 16 = 0
x^2 - 8x - 2x + 16 = 0
x(x-8) -2(x-8) = 0
(x-2)(x-8) = 0
x = 2 or 8
The value 8 will not be possible as it will need to negative dimensions
So the possible dimensions will be;
(8-2(2)) and 12-2(2)
= 8-4 and 12-4
= 4 ft by 8 ft
What number belongs in the box?
Answer:
16
Step-by-step explanation:
15+23= 38
38-22=16
Therefore the answer is 16. LMK if you need anymore help
Answer:
16
Step-by-step explanation:
[tex]15+23=x+22\\38=x+22\\x=38-22\\x=16[/tex]
h(x) = x2 – 1
Over which interval does h have a negative average rate of change ?
Answer:
Step-by-step explanation:
hello : here is an solution
(-2a^2b^3)(4ab^5)(6a^3b^2)
Answer: (-2^4x3a^6b^10)
Step-by-step explanation:
The two-way table below describes the attendance at a movie theater at various times of the day.
Patrons at a Movie Theater on Thursday and Friday
Thursday
Friday
5 pm
61
82
7 pm
130
158
9 pm
75
162
11 pm
42
94
Which statement best describes the relationship between the two variables?
There is an association because the relative frequencies by column are different.
There is an association because the relative frequencies by column are similar.
There is no association because the relative frequencies by column are different.
There is no association because the relative frequencies by column are similar.
Answer:
There is an association because the relative frequencies by column are different.
Step-by-step explanation:
edge2021ψ(｀∇´)ψヾ(≧▽≦*)oφ(*￣0￣)
The statement that describes the relationship is that There is an association because the relative frequencies by column are different.
What are relative frequencies?It represents how the particular event arise within the overall number of observations. It is the frequency- time that used the percentage, fractions, and even proportions.
So based on this, we can say that The statement that describes the relationship is that There is an association because the relative frequencies by column are different.
Learn more about frequency here: https://brainly.com/question/24231444
Sohan bought a second hand refrigerator for 2500rs, then spent 500rs.On its repairs and sold it for3300rs .Find his loss or gain percent
Answer:
Gain of 300rs
Step-by-step explanation:
Sohan bougth a second-hand refrigerator for 2500rs
500rs was spent on it repairs
= 2500+500
= 3,000rs
It was sold for 3,300rs
Therefore the gain can be calculated as follows
= 3,300-3,000
= 300rs
Hence the gain is 300rs
The 6 AM temperatures for four consecutive days in town of Lincoln were -12.1°C, -7.8°C, -14.3°C, and -7.2°C. What was the average 6 AM temperature for the four days
Answer:
- 10.35°C
Step-by-step explanation:
Given that :
Temperature at 6 AM for four consecutive days :
X : -12.1°C, -7.8°C, -14.3°C, and -7.2°C
The average temperature :
ΣX / n
n = sample size = number of days = 4
[(-12.1) + (-7.8) + (-14.3) + (-7.2)] / 4
= - 41.4 / 4
= - 10.35°C
Hence, the average 6 AM temperature for the four days is - 10.35°C
please help ASAP I need it
IF YOU DO NOT ANSWER IT WILL BE REPORTED
Answer: 4/5
Step-by-step explanation:
Answer: 3.8/10 it the answer
You're welcome
EASY* BRAINLEST AND THANKS
A rectangle has a length of 28 feet less than 6 times its width. If the area of the rectangle is 48 square feet, find the length of the rectangle.
Answer:
W=6
L=8
Step-by-step explanation:
L=6W-28
Area=48
Area=L x W
48=W(6W-28)
48=6W^2-28W
6W^2-28W-48=0
factor
(3W+4)(2W-12)=0
3W+4=0
3W=-4 no
2W-12=0
2W=12
W=6
L=8
The table shows the price of packages of markers at a store. Each package sells for the same price. What is the price of 11 packages of markers?
Answer:
$55
Step-by-step explanation:
2 of them would be for 10 dollars so if i divided 10 by 2 i would get 5. Then i would add 5 to the 50 dollars for the 10 packages. Which would result in the price being 55 dollars for 11 packs.
can some one helpppppppppppp plsssssssssssssssssssssssssssss
Answer:
c
Step-by-step explanation:
( 4,3) 4 is the x and 3 is the y
Complete the input-output table for the function machine.
input
multiply
by 2, then
add 5
output
Input
Output
-1
0
1
2
3
Answer:
The required table is:
Input Output
-1 3
0 5
1/2 6
3 11
Step-by-step explanation:
The function defined that the output of the function can be determined by multiplying the input by 2 and adding 5.
i.e.
if input = x, then output = 2x+5
We are given
Inputs:
-1, 0, 1/2 and 3
Thus,
When input x = -1, then output = 2(-1) + 5 = -2+5 = 3
When input x = 0, then output = 2(0) + 5 = 0 + 5 = 5
When input x = 1/2, then output = 2(1/2) + 5 = 1 + 5 = 6
When input x = 3, then output = 2(3) + 5 = 6 + 5 = 11
Therefore, the required table is:
Input Output
-1 3
0 5
1/2 6
3 11
Find the error A student graphs the relationship y= x on a coordinate plane She says the slope is 0 because there is no coefficient. Find her mistake
HELPPPPPPPP MEEEEE please
Answer:
not a function
Step-by-step explanation:
trust me i have been through this
Which statement best describes a pure market economy?
a
producer intervention in economic choices is strictly forbidden
b
the government determines economic choices and makes most decisions
c
the decisions made by producers and consumers drive all economic choices
d
producers and consumers make some economic choices while the government makes others.
(50 points) if you get this question right
Answer:
b
Step-by-step explanation:
Answer:
d
Step-by-step explanation:
d because the goverment Scarcity affects the monetary value people place on goods and services and how governments and private firms decide to distribute resources.
what is $22 with a 30% markup?
Answer:
$6.60
Step-by-step explanation:
22 * .3 = 6.6
30 POINTS!
How many square meters are enclosed in the track? Use 3 for π.
Enclosed in the track is __ square meters
Answer:
Area = 3,656.6 m²
Step-by-step explanation:
Area enclosed by the track is composed of two semicircles and a rectangle.
Area = area of two semicircles + area of rectangle
= 2(½*πr²) + L*W
Where,
radius of semicircle (r) = ½of 40 m = 20 m
Length of rectangle (L) = 60 m
Width of rectangle (W) = 40 m
Plug in the values
Area = 2(½*π*20²) + 60*40
Area = 400π + 2,400
Area = 3,656.6 m² (aooroximated to nearest tenth)
Answer:
The mathematics bro xD
Step-by-step explanation:
What is the slope of these points?
Answer:
1/2
Step-by-step explanation:
put my answer the brainliest please
Find the missing sides of the 30-60-90 triangle based on the information given below
PLS HELP
Answer:
4√3/3 and 8√3/3
Step-by-step explanation:
For a 30-60-90 triangle, the ratio of the sides according to the side facing the respective angle is;
1 : √3 : 2
So from what we have ;
Root 3 is 4
a : 4 : b
1 : √3 : 2
From the options, we have our answer as the 30 being half of the 90
So that is;
4 √3/3 and 8 √3/3
What single Percentage change equivalent to 8% decrease followed by a 15% decrease
Answer:
0.92 times 0.85?
Step-by-step explanation:
8 percent decrease is 0.92
15 percent decrease is 0.85
NEED HELP!!
Find the slope of the line.
The slope of the line is
Answer:
m=3
Step-by-step explanation:
What does -8(6x - 2) equal? How do I get my answer?
Answer:
-48x+16
Step-by-step explanation:
-8(6x - 2) first multiply each term in the parentheses by 8 to get -8x6x-8x(-2) and calculate the product to get your answer which is -48x+16
Answer:
-48x + 16
Step-by-step explanation:
Multiply - 8 times 6x
Answer - 48 (negative times positive equals a negative)
Multiply - 8 times - 2
Answer - 16 (negative times a negative equals a positive)
4 + 4.75x = 3 + 5.55x
Step-by-step explanation:
4+4.75x=3+5.55x
4-4+4.75x=3-4+5.55x
0+4.75x-5.55x = -1+ 5.55x-5.55x
-0.8x = -1
-0.8x/-0.8= -1/-0.8
x = 1.25
If its helpful ❤❤❤
THANK YOU.
(1) Deduce the value of the ‘n’ in each of the following:
(a) 0.0035² = 1.225 × 10ⁿ
(b) 0.04³ = 6.4 × 10ⁿ
(2) Write the answers to the following calculations in standard form:
(a) ( 2.4 × 10⁸ ) ÷ ( 9.6 × 10² )
(b) (2.8 × 10⁵) × ( 2.0 × 10³ )
(3) Evaluate the following without the use of calculator:
(a) 27³ / 3³ (b) 25² × 5²
Alisha bought a shirt as a gift for russell's birthday. The shirt normally costs $39 and it was on sale for $19 what was the percentage discount on the shirt?
it would be about 51 or 52 percent exact but if you have to round about 50 percent was taken off the shirt.
EXPLANATION: 39 times 0.5 = 19.5
39- 19.5 = 19.50
HOPE THIS HELPS
Revathi reached her grandparents' place at 9:20 a.M. After travelling in a train for 9 hrs and 37 mins. What time did her train start from the station?
Answer:
Starting time = 11:43 pm last night
Step-by-step explanation:
The time that her train started from the station is as follows
Given that
Grandparents reached the place at 9:20AM
The travelled time is 9 hours and 37 mins i.e. 9:37 hours
Starting time = Reached time - journey time
Starting time = 9:20 am - 9:37 hrs
= 11:43 pm last night
please help ill give brainilest
Answer:
y = -2x
Step-by-step explanation:
According to the table, 1 is subtracted from x and 2 is subtracted from y every step.
-2/1x
(rise over run.)
a set of 30 event tickets are placed in a bag. There are 6 baseball tickets, 4 hockey tickets, 4 basketball tickets, 2 football tickets , 3 symphony tickets, 2 opera tickets , 4 ballet tickets, and 5 theatre tickets. One ticket is selected without looking. Determine each probability for each card in fraction form
Answer:
he doesn't realixe it30 tickets
Step-by-step explanation:
