Answer:
her aunt’s present age 30
Step-by-step explanation:
Answer:
30
Step-by-step explanation:
9+12=21
21*2=42
42-12=30
what is mode and what is mean and median#
Answer:
The mean (average) of a data set is found by adding all numbers in the data set and then dividing by the number of values in the set. The median is the middle value when a data set is ordered from least to greatest. The mode is the number that occurs most often in a data set
Step-by-step explanation:
WILL GIVE OUT BRAINLIEST AT LEAST TWO PEOPLE MUST ANSWER!!
-4x + 9 - y + 8x + 2 + 8y + x
FIND CONSTANT-
Answer:
5x+7y+11
Step-by-step explanation:
QUESTION Today, everything at a store is on sale! The store offers a 20% discount.
The regular price of a T-shirt is $18. What is the discount price?
Answer:
18x0.20 = 3.6 18-3.6 = 14.4
anwser- $14.40
Step-by-step explanation:
18 is the original price of the shirt, and 20% is the discount. You can write the discount as 0.20 because it is the same as 20/100. To get the discount you have to multiply the original price and the discount, 18x0.20, 3.6. 3.6 is the discount price which means, it is not the final price because it only is 20% of 18. To check, multiply 3.6 by 5 becuse 100%= 1 and 5 times 0.2 equals to 100% (1). 3.6 x5 = 18. To get the final price, subtract 3.6 from 18 so the dicount can be added to the final price. Hope this helps :)
Answer:
18.00
Step-by-step explanation:
18.00x 0.18=3.24
this was the main question I got wrong i really hope I get it right this time
Answer:
A, both shapes are quadrilaterals
B, Both shapes should have equal lengths
E, both shapes have parallel opposite sides
Step-by-step explanation: good luck
What is the number of possible permutations of 8 objects taken 4 at a time?
A.
24
B.
70
C.
1,680
D.
40,320
Answer:
1,680
Step-by-step explanation:
n!/(n-r)!
in this case n= 8 and r= 4
so 8!/(8-4)! = 1,680
The possible permutation of 8 objects taken at 4 a time will be 1680.
What is permutation?
The linear arrangement of the set of the orders or the linear arrangements of the numbers is called the permutation.
The number of possible permutations of 8 objects taken 4 at a time will be:-
[tex]^8C_4=\dfrac{8!}{(8-4)!}[/tex]
[tex]^8C_4=\dfrac{8!}{(4)!}[/tex]
[tex]^8C_4=\dfrac{8 \times 7\times 6\times 5\times 4\times 3\times 2}{4\times 3\times 2}=1680[/tex]
Therefore the possible permutation of 8 objects taken at 4 a time will be 1680.
To know more about permutations follow
https://brainly.com/question/1216161
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If 14 gallon of paint covers 13 of a wall in Luna's bedroom, how much paint does she need to cover 1 wall?
Answer:
182
Step-by-step explanation:
1/13=14 gal
14 times 13 = 182 gal.
Unless you wrote it diff, then it would be 14/13 = 1.08 gal (I don't think this one is correct though)
Answer:
182
Step-by-step explanation:
Which expression in scientific notation is equivalent to (6×10^4)(3×10^5)
A 1.8×10^10
B 1.8×10^20
C 9×10^9
D 9×10^20
Answer: A) 1.8*10^10
Step-by-step explanation:
Multiply the constants together, and multiply the multiples of 10 together.
6*3 = 18
10^4 * 10^5 = 10^9
which gives you 18 * 10^9, but that isn't in scientific notation, because 18 isn't a number between 1 and 10
so you get 18 * 10 ^9
which is equal to 1.8*10^10
Hope this helps!
Answer:
A
Step-by-step explanation:
There are 20 children in a class 45% are girls, How many girls and boys are there?
Answer:
Step-by-step explanation:
each person represents 5%. so 45% are girls. 45/5 is 9, so 9 are girls. 20 minus 9 is 11 so 9 girls and 11 boys
The number of girls is 9 and the number of boys is 11.
Important information:
Total number of students = 2045% of total students are girls.Percentage:Using the given information, the number of girls is:
[tex]20\times \frac{45}{100}=9[/tex]
Now, subtract the number of girls from the total number of students.
[tex]20-9=11[/tex]
Therefore, the number of girls is 9 and the number of boys is 11.
Find out more about 'Percentage' here:
https://brainly.com/question/813490
evaluate H (x) equals 1/4 x - 2 when x equals 8
Answer:
0
Step-by-step explanation:
Whats the value of x? 3x - 5(x - 5) = -7 + 2x + 12
Answer:
x = 5
Step-by-step explanation:
Given
3x - 5(x - 5) = - 7 + 2x + 12 ← distribute and simplify left side
3x - 5x + 25 = 2x + 5
- 2x + 25 = 2x + 5 ( subtract 2x from both sides )
- 4x + 25 = 5 ( subtract 25 from both sides )
- 4x = - 20 ( divide both sides by - 4 )
x = 5
Three pens and three notebooks cost $6.90. Two notebooks and one pen cost $4.10
Answer:
so whats the question then?
Step-by-step explanation:
The Williams family goes shopping, and spend $95.00. They have a coupon for 20% off and the sales tax is 8%. What is the total cost of the shopping trip?
Answer:
The total cost of the shopping trip is:
$82.08
Step-by-step explanation:
The Williams family goes shopping, and spend $95.00. They have a coupon for 20% off and the sales tax is 8%. What is the total cost of the shopping trip?
Step 1
We find the price after the discount
The Williams family goes shopping, and spend $95.00. They have a coupon for 20% off
Hence:
20% × $95
= $19
Therefore: $95 - $19
= $76
Step 2
We find the amount of sales tax
The sales tax is 8%
Hence:
8% of $76
= $6.08
Our sales tax = $6.08
Step 3
The total cost of the shopping trip is calculated as:
$76 + sales tax
= $76 + $6.08
= $82.08
Determine whether the statement is true or false. Explain your reasoning. "Every relation is a function."
What is the equation of the line through (4, -3) and (0, -2)?
A. y = 4x + 2
B. y=-4x - 2
C. y = -12- 2
D .y= 4x + 2
A line is shown in the graph. What is the equation of the line?
An organized collection of best works is called a ________.
Sketch pad
Gateway notebook
Journal
Portfolio
Select the better deal in the pair. Then give the unit rate for the better deal.
$81÷25gal or $62.05÷20gal
A:First
B Second
Then the unite rate with the better deal is $_____/gal
Answer:
its the first one and its 3.24
The bells are adding a new room to their house. The room will be a cube with volume 8,000 ft^3. They are going to put in hardwood floors, and the contractor charges $10 per square foot. How much will the hardwood floors cost?
Answer:
$4000
Step-by-step explanation:
Given that :
Volume of cube = 8000 ft³
Charge per ft² = $10
Recall, volume of a cube = a³
Where a = edge
Hence,
a³ = 8000
Take the cube root of both sides
a = 20
Hence,
Volume = 20 * 20 * 20
The Area of the floor will be :
20 * 20 = 400 ft²
If charge per ft² = $10
400 ft² = ($10 * 400) = $4000
Find all missing angles.
Answer:
when you see the right angle square, means there is a 90 degree angle somewhere
Step-by-step explanation:
1. 90 degree
2. where is the 2?
3. 18 degrees
4. 10 degree, looks about 10 or less
Pls help me and I’ll give brainliest to u
Answer:
35$ becuase 5 times ten dollars for each person for lunch then yoy take that 50 and subtract it from 225 then you divide 175 which is the sum of 50 minus 225 and divided 175 by 55 and you get 35
Step-by-step explanation:
emily has a bowl of M&M's for every 25 M&M's there are blue 5 M&M's. what percent of her M&M's are blue
Answer:
twenty percent.
Step-by-step explanation:
25/5=5
100/5=20
!!!Please need now!!!,it’s not hard,ask a second time
Which point represents 4StartRoot 2 EndRoot (cosine (StartFraction 5 pi Over 4 EndFraction) + I sine (StartFraction 5 pi over 4 Endfraction) ) ?
It's Point B
Answer:
point b
Step-by-step explanation:
took the test
Answer: point b
Step-by-step explanation: because the mans who asked the question is a legend
What is the midpoint, M, of line segment HG with
endpoints H(-10,2) and G(4,-4).
PLEASE HELP! I need this fast!
The quadratic equation y = 2(x + 3)^2 - 1 is written in vertex form.
True or false
Answer:
Yes
Step-by-step explanation:
vertex form is y=a(x-h)^2+k
Answer:
True.
Step-by-step explanation:
The quadratic equation [tex]y=2(x+3)^2-1[/tex], is in fact written in vertex form.
Vertex Form = [tex]y=a(x-h)^2+k[/tex]
[tex]a=amplitude[/tex]
[tex]h=horizontal shift[/tex]
[tex]k=vertical shift[/tex]
Solve for z
−p⋅(51+z)=dz+84
z= (anwser)
Answer:
z=(84-p(51+z))/d
Step-by-step explanation:
this is harder so i put more points
Answer:
Sheet metal costs $20 per square foot.
Step-by-step explanation:
7.6x - 2.3x = 106
We are finding the value of x.
5.3x = 106
Divide both sides by 5.3.
x = 106 ÷ 5.3
x = 20
Answer and Explanation
__________________________________________________________
Sheet metal costs $20 per square foot( x = 20 )__________________________________________________________
Sheet metal costs 20 dollars per square foot, and we can figure this out by multiplying the 20 by the numbers and subtracting them.
__________________________________________________________
[tex]7.6x-2.3x=106[/tex] but what does x equal? ( 20 )
[tex]7.6\cdot20[/tex] = [tex]152[/tex]
[tex]2.3\cdot20[/tex] = [tex]46[/tex]
__________________________________________________________
[tex]152-46[/tex] = [tex]106[/tex]
Which is the same in the question, so x = 20.
__________________________________________________________
Hope this helps! <3
__________________________________________________________
What is the slope of the line in the graph?
gabriel has 6 2/3 of almond flour to make macaroons. he plans to make a recipe that uses 3/4 of a cup of almond flour. what is the greatest number recipes he can make?
Answer:
8 cups max
Step-by-step explanation:
3/4 cup = 1 recipe
6 2/3(20/3) cup = 20/3 x 1
3/4
= 20 / 3
3 4
= 20 x 4
3 3
= 80/9
= 8 cups max
the 9th cup will not be enough.
A gyroscope of radius 18 centimeters rotates 35 times per minute. Find the linear velocity of a point on the edge of the gyroscope.
In one full rotation/revolution, a point on the edge travels a distance equal to the circumference of the gyroscope, or 2π (18 cm) = 36π cm. Convert the angular speed, 36π cm/rev, to linear speed:
(36π cm/rev) • (35 rev/min) = 1260π cm/min ≈ 3958 cm/min