Answer:
2.5
Step-by-step explanation:
5 by 2: 2.5
find the missing side length ( find ?)
Answer: 35
Step-by-step explanation:
Pls answer i will mark u brainlist
Hello!
75,000 - 10% of 75,000
= 75,000 -(10*75,000)/100
= 75,000 -7,5 => 67,500
67,500 - 10% of 67,500
= 67,500- ( 10*67,500)/100
=67,500 - 6,75 = 60,750
60,750 -10% of 60,750
= 60,750-( 10*60,750)/100
= 60,750 - 6,075 => 54,675
Prove that the difference between a two-digit number and the product of its digits will always be a 2 digit number.
Solution:
Let's take the greatest two-digit number as an example.
=> 99Proving...
99 - (9 x 9) = Two-digit number=> 99 - 81 = Two-digit number=> 18 = Two-digit numberSince the difference between the greatest two-digit number and the product of its digits is a two-digit number, the difference between the other two-digit numbers '10, 11, 12.... 97, 98' and the product of its digits will always be a two-digit number, as the product of its digit is less than the two-digit number.
Hence proved. ✔✔
Step-by-step explanation:
Let the two-digit number is [tex]xy[/tex]
This can be written as:
10x + y, where 1 ≤ x ≤ 9 and 0 ≤ y ≤ 9The difference between the number and product of its digits is:
d = 10x + y - xyRewrite this as below:
d = 10x - xy + y - 10 + 10 =
x(10 - y) - (10 - y) + 10 =
(x - 1)(10 - y) + 10
We see that:
0 ≤ x - 1 ≤ 8 according to the condition given above1 ≤ 10 - y ≤ 10 again according to the condition given aboveThe value of d is then:
0 + 10 ≤ d ≤ 8*10 + 1010 ≤ d ≤ 90ProvedWhich expression is equivalent to 5(4x + 3)
Hey there!
5(4x + 3)
DISTRIBUTE 5 WITHIN the PARENTHESES
= 5(4x) + 5(3)
WEIRD WAY TO SIMPLIFYING MULTIPLICATION
= 5x + 5x + 5x + 5x + 5 + 5 + 5
= 10x + 10x + 10 + 5
= 20x + 15
Therefore, your answer is: 20x + 15
Good luck on your assignment & enjoy your day!
~Amphitrite1040:)
+2+1+6 this is confusing what is the answer and explanation
Answer:
9
Step-by-step explanation:
hi I'm pretty sure this is really wrong but just kinda guessing
+2 is just a positive 2 so it's just known as 2
2+1+6 = 9
Answer: 9
Step-by-step explanation:because if its 2+1+6 then u get 2 and 6 add thats 8 then your 1 and its 9.
Given that ¹/x=²/y+¹/z. express y interms of x and z. if x=5 and z=10. find the value of y leaving your answer as a mixed fraction
Answer:
[tex]y=\dfrac{2xz}{(z-x)}[/tex]
Step-by-step explanation:
Given:
[tex]\dfrac{1}{x}=\dfrac{2}{y}+\dfrac{1}{z}[/tex]
[tex]\implies \dfrac{2}{y}=\dfrac{1}{x}-\dfrac{1}{z}[/tex]
[tex]\implies \dfrac{2}{y}=\dfrac{z-x}{xz}[/tex]
[tex]\implies 2xz=y(z-x)[/tex]
[tex]\implies y=\dfrac{2xz}{(z-x)}[/tex]
When x = 5 and z = 10:
[tex]\implies y=\dfrac{2(5)(10)}{(10-5)}[/tex]
[tex]\implies y=\dfrac{100}{5}[/tex]
[tex]\implies y=20[/tex]
87.125 is it rational or irrational? Explain how.
Answer:
87.125 is rational
Step-by-step explanation:
it is a rational number because it can be represented as a fraction
Rachel is building a fence around her yard. She wants to create a square area that will have an area of 150 m. If the fencing has been cut into 1m lengths, how much fencing will Rachel need?
Answer:
Rachel will need 49 meters of fencing.
Step-by-step explanation:
From Geometry we know that area of the square ([tex]A[/tex]), measured in square meters, is represented by the following formula:
[tex]A = l^{2}[/tex] (Eq. 1)
Where [tex]l[/tex] is the side length of the square, measured in meters.
The length of the square is now cleared:
[tex]l = \sqrt{A}[/tex]
If we know that [tex]A = 150\,m^{2}[/tex], then the side length is:
[tex]l =\sqrt{150\,m^{2}}[/tex]
[tex]l \approx 12.247\,m[/tex]
The total amount of fencing is equal to the perimeter of the square ([tex]p[/tex]), measured in meters, that is:
[tex]p = 4\cdot l[/tex] (Eq. 2)
If we know that [tex]l = 12.247\,m[/tex], then the perimeter of the square is:
[tex]p = 4\cdot (12.247\,m)[/tex]
[tex]p = 48.988\,m[/tex]
As fencing is cut into 1-m lengths, we need to round this number up to the nearest integer. That is:
[tex]p = 49\,m[/tex]
Rachel will need 49 meters of fencing.
What is the equation that can be used to find a percent of a number?
Answer:
Percent · Base = Amount.
Step-by-step explanation:
Use n for the unknown (percent).
Divide to undo the multiplication of n times 72.
Move the decimal point two places to the right to write the decimal as a percent.
Hope this helps!(:
Answer:
part = percent • whole
Step-by-step explanation:
Solve for y.
2y2- 15y + 13 = 0
Write each solution as an integer, proper fraction, or improper fraction in simplest form. If
there are multiple solutions, separate them with commas.
Submit
Step-by-step explanation:
use sum and product method
please help 8th grade math giving brainlist
Answer:
Hope this helps! Try using the desmos graphing calculator. It is good for those problems.
Step-by-step explanation:
Sofie claims to be a tasting expert. To test her abilities, someone bakes Sofie a cake using 3 of the following
ingredients:
Coffee
Nutmeg
Vanilla
Cinnamon
Sea salt
Ginger
Sofie's challenge is to identify which set of 3 ingredients was used in the cake. Suppose that Sofie is just
randomly guessing.
What is the probability that Sofie correctly identifies the set of 3 ingredients in the cake?
Summing all the ingredients to get the total sample size, we applied the formula for obtaining the probability which is
Pr(3) = 0.5
ProbabilityGiven Data
Sample Space
CoffeeNutmegVanillaCinnamonSea saltGingerTotal Sample size = 6
Probability of identifying 3 ingredient used is
Pr(3) = 3/6
Pr(3) = 1/2
Hence the Probability is 0.5
Learn more about probability here:
https://brainly.com/question/25870256
Answer:
1/20
Step-by-step explanation:
From Kahn
Please help me ASAP!
Answer:
10
Step-by-step explanation:
2x+46+3x-6 = 90
5x + 40 = 90
5x = 50
x =10
Solve for missing angle
Hello!! Your answer would be 55''. If the other side is the same length, the this side is 55'' too.
Hope this helps!
Answer:
135!!!
Step-by-step explanation:
Please help I don’t understand this problem!
the second one √72= 8.48 and the square root of √83=9.11 pi^2 = 9.86
when you put this in order by the decimal you get
8.48, 8.7, 9.11, 9.25, 9.86 which is really √72, 8.7, √83, 9.25, pi^2
I need help on 12 lol
Answer:
68.58m
Step-by-step explanation:
hope it helps!!!
A square and an equilateral triangle have the same perimeter. Each side of the triangle is 3 inches longer than each side of the square. What is the perimeter of the square?
ASAP I ONLY HAVE 15 MINUTES
Answer:
36 inches
Step-by-step explanation:
Q = length of the sqaure
T = length of the triangle
Equation 1: 4Q = 3T
Equation 2: T = 3+Q;
Then, subsitute T=3+Q into equation 1:
4Q = 3(3+Q)
4Q = 9 + 3Q
Q = 9
-----
Each side of the square is 9 inches, so the perimeter will be 9X4 = 36inches
A flag is 152 centimeters long.
How long would the flag measure in meters?
Enter your answer in the box.
The length of the flag measure in meters is,
⇒ 1.52 meters
What is Measurement unit?A measurement unit is a standard quality used to express a physical quantity. Also it refers to the comparison between the unknown quantity with the known quantity.
We have to given that;
A flag is 152 centimeters long.
Now,
We know that;
1 centimeters = 1/100 meters
Hence, We get;
The length of the flag measure in meters is,
⇒ 152 centimeters
⇒ 152/100 meters
⇒ 1.52 meters
Thus, The length of the flag measure in meters is,
⇒ 1.52 meters
Learn more about the measurement unit visit:
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please help me fast !!!!!
Answer:
2nd option
Step-by-step explanation:
the exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.
121.8° is an exterior angle of the lower triangle , then
∠ 2 + 17.3° = 121.8° ( subtract 17.3° from both sides )
∠ 2 = 104.5°
------------------------------------
∠ 2 is an exterior angle of the upper triangle , then
∠ 1 + 37.1° = 104.5° ( subtract 37.1° from both sides )
∠ 1 = 67.4°
Which of the following are solutions to the equation below?
Check all that apply.
4x2 + 12x + 9 = 25
V5-3
O A. x=
16.
O B. x= -1
Answer:
see below
B.
Step-by-step explanation:
Answer:
Step-by-step explanation:
1 and -4
Identify whether each equation has one solution, infinitely many solutions, or no solution.
2.3x - 7 = -7
3x = 5 + 3x
4(10 - x) = 40 - 4x
-7 + x = - (x + 7)
Answer:
1 solution
No solution
Infinitely many solutions
1 solution
Step-by-step explanation:
2.3x - 7 = -7
2.3x = 0
x = 0
1 solution
3x = 5 + 3x
0 = 5
No solution
4(10 - x) = 40 - 4x
40 - 4x = 40 - 4x
Infinitely many solutions
-7 + x = -(x + 7)
-7 + x = -x - 7
2x = 0
x = 0
1 solution
Answer:
he is right
Step-by-step explanation:
Lena pays $8.96 for every 3 ounces of coffee. If she were to
graph the relationship between the number of ounces of
coffee and the total cost, what would be the meaning of the
slope of this graph?
Answer:
A: the cost per pund of coffee
Step-by-step explanation:
You need x and y- values. So one would be the pound (x) and the other would be the cost (y)
Which statement describes the solution to this system of equations?
2x−4y=8
8x−16y=32
Select the statement that correctly describes the solution to this system of linear equations.
A
There is no solution.
B
There are infinitely many solutions.
C
There is exactly one solution at (8, –4).
D
There is exactly one solution at (2, –16).
Factoring
16x^5+20x^4-12x^3+24x^2
Hope this helps This is easy
Eric runs every day. He can run 5 miles in 50
minutes. What is the unit rate that Eric runs in
one minute?
Answer:
10
Step-by-step explanation:
If he runs 50 minutes 50 divided by 5 is 10
I need help with this question
Answer:
It's the second answer, hope this helps!
Maddie has 18 flowers plants to put in her garden. she wants to plant them on 3 rows with an equal number on each row. how many rows will she plant
Answer:
6
Step-by-step explanation:
18 ÷ 3 = 6
3+3+3+3+3+3=18
Answer:
6 per row
Step-by-step explanation:
If Maddie has to spread out a total number of flowers (18) over a set number of sections (3) you would be able to solve this by dividing the total into the sections, which would look something like 18/3.
Find the value of y and find m∠C and m∠D in the triangle given below.
y =
m∠C =
m∠D
Answer:
Step-by-step explanation:
1
1
15. Ratan bought 2 - m of iron wire and 3.
4
3
of copper wire.
a) What is the total length of wires he
bought?
b) How much more copper wire than
iron wire did he buy?
can u send me the question once more correctly so that I can help u
My username is Ayaan707.
^_^
Answer:
Total length of wire bought = 2 1/4 + 3 1/3
=9/4 + 10/3
=9*3/4*3 + 10*4/3*4 (LCM)
= 27/12 + 40/12
=67/12= 5 7/12metre is the answer
Ayaan707 avatar
difference btw copper and iron wire = 40/12 - 27/12
=13/12= 1 1/12 metre of copper wire
Step-by-step explanation:
HOPE IT HELPS , JENNY
Enola has a toy car collection. She keeps some in a display case and the rest on the wall. 155 of her toy cars are on the wall, and 69% of her toy cars are in the display case. What is the total number of toy cars in Enola's collection?
Give me brainliest if right: 106.95
The total number of toy cars in Enola's collection is 500 if 155 of her toy cars are on the wall, and 69% of her toy cars are in the display case.
What is the percentage?It's the ratio of two integers stated as a fraction of a hundred parts. It is a metric for comparing two sets of data, and it is expressed as a percentage using the percent symbol.
It is given that:
She keeps some in a display case and the rest on the wall. 155 of her toy cars are on the wall, and 69% of her toy cars are in the display case.
Let x be the total number of toy cars in Enola's collection:
69% of x = x - 155
0.69x = x - 155
0.31x = 155
x = 500
Thus, the total number of toy cars in Enola's collection is 500 if 155 of her toy cars are on the wall, and 69% of her toy cars are in the display case.
Learn more about the percentage here:
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