Answer:
16 minutes
Step-by-step explanation:
80% of 20 =
10% ×8= 2×8=16
16 mins
Hòa tan hoàn toàn 11 gam hỗn hợp gồm Fe và một kim loại M có hóa trị không đổi bằng dung dịch HCl thu được 0,4 mol khí H2. Còn khi hòa tan 11 gam hỗn hợp trên bằng dung dịch HNO3 loãng, dư thì thu được 0,3 mol khí NO (sản phẩm khử duy nhất). Kim loại M là?
\
Answer:
chinese
Step-by-step explanation:
I dont know that language
Express in scientific notation. Choose the answer with the proper number of significant figures.
Answer:
it is the answer thanks
give me brainly
can someone help me how to do this
Answer:
Answers in Bold
Step-by-step explanation:
Point Slope Form: (y - y₁) = m(x - x₁)
4. y - 4 = 0.8(x - 2)
- To make it slope-intercept form
y - 4 = 0.8x - 1.6
y = 0.8x + 2.4
5. (Use slope finding formula) 4 - 10 / -2 - (-5) = 2
y - 4 = 2(x + 2)
- To make it slope-intercept form
y - 4 = 2x + 4
y = 2x + 8
Jack is building a square garden. Each side length measures 777 meters. Jack multiplies 7\times77×77, times, 7 to find the amount of space in his garden is equal to 494949 square meters.Which measurement does 494949 square meters represent?Choose 1 answer:
In 2017 the Koenigsegg Agera RS could go 1945.3 miles in 7 hours how many miles could you drive in a 3 hour trip
Answer:
833.7 miles
Step-by-step explanation:
1945.3 over 7. You have to find the unit rate, which is 277.9 over 1. And then multiply that by 3 and that is 833.7
Answer:
833.7
Step-by-step explanation:
NEED Help What is one element a topographic map shows?
Elevation
Space
Temperature
Weather
Answer:
One element a topographic map shows is Elevation.
Step-by-step explanation:
Which table represents a function?
Answer:
only the one to the most left is a function
Step-by-step explanation:
if the x value repeats it is not a functon
What is 35% of the number 40?
Answer:
14
Step-by-step explanation:
convert 35% to a decimal by moving the decimal to the left two places
.35
.35 × 40 = 14
Answer:
87 percent
Step-by-step explanation:
You just simply divide percent you got (35) by the full amount you could get (40)
35 ÷ 40
I kinda need help and an explanation Cant understand
Answer:
look in explanation
Step-by-step explanation:
Seeing as most of your answers are wrong, I'll start from the beginning.
a rational number is a number that can be expressed as a fraction.
an integer is a whole number.
an irrational number is a number that cannot be expressed as a fraction.
an integer is also always a rational number.
Using this, we can sort the values.
-77/11 can be simplified as -7, which is an integer.
the square root of 144 is 12, which is an integer.
0.25 is a decimal that can be expressed as a fraction, which makes it a rational number that is not an integer.
the square root of 20 is a value that cannot be expressed as a fraction, which makes it irrational.
17/4 is a fraction that is not a whole number, which makes it a rational number but not an integer.
finally, 2*the square root of 10 is irrational.
if grace and claire parents each invested 7,600 into college saving account when the girls were born how much money will each girl have for college when she turns 18
Answer:
7,600
Step-by-step explanation:
both parents invest 7,600.
7,600x2= 15,200
there are 2 girls so divide 15,200 by 2 and u get 7,600
Help pls will give brainliest
Answer:
your answer is m[tex]\leq[/tex]60 which is answer choice C
I hope this helps
Answer:
C. m is less than or equal to 60
Step-by-step explanation:
11 - m/3 > - 9
-m/3 < -20
m/3 < 20
m < 60
90000000000 in standard form???
Click and drag like terms onto each other to simplify fully. — бх — бу+7y-y-6
A 9-inch candle burns down in 12 hours. After how many hours will it have burned
3 3/8 inches?
Answer:
4.5
Step-by-step explanation:
Use a proportion.
3 3/8 = 3.375
9 inch is to 12 hours as 3.75 inches is to x hours.
9/12 = 3.375/x
3/4 = 3.375/x
3x = 4 * 3.375
x = 4 * 1.125
x = 4.5
Answer: 4.5 hours
Using rate if a 9-inch candle burns down in 12 hours, the amount of hours it have burned 3 ³/₈ inches is 4 ¹/₂ h
What is a rate?Rate is the amount per unit time of a substance
Since a 9-inch candle burns down in 12 hours. To determine after how many hours will it have burned 3 ³/₈ inches, we proceed as follows.
.
First, we calculate the rate at which it burns which is given as r = Length of candle/time
Since
Length of candle = 9 in andtime = 12 hoursSubstituting the values of the variables into the equation, we have that
r = Length of candle/time
r = 9 in/12 h
r = 3/4 in/h
To determine how many hours it would have burned 3 ³/₈ in, we have that
rate, r = Length/time
time = Length/rate
Since
Length = 3 ³/₈ in = 27/8 in andrate = 3/4 in/hSubstituting the values of the variables into the equation, we have that
time = Length/rate
= 27 in/8 ÷ 3/4 in/h
= 27/8 in × 4/3 h/in
= 9/2 h
= 4 ¹/₂ h
So, it will have burned for 4 ¹/₂ h
Learn more about rate here:
https://brainly.com/question/29051699
#SPJ3
What expressions is equivalent to 5 to the power of 8
Answer:
Step-by-step explanation:
5¹⁶ ÷ 5² = 5⁽¹⁶ ⁻ ²⁾ = 5¹⁴ ❌
(5²)⁶ ÷ 5⁴ = 5⁽¹² ⁻⁴⁾ = 5⁸ ✅
5² × 5⁴ = 5⁽²⁺⁴⁾ = 5⁶ ❌
(5⁴)² = 5⁸ ✅
5⁻¹ × 5⁹ = 5⁻¹ ⁺ ⁹ = 5⁸ ✅
5⁻¹ × 5⁻⁸ = 5⁻¹ ⁺ ⁽⁻⁸⁾ = 5⁻⁹ ❌
PLEASE PLEASE PLEASE HELP RN
Answer:
7 to the power of 13
Step-by-step explanation:
Answer:
7 to the power of 13
Step-by-step explanation:
Step 1 - 7 to the power of 8 (7 x 8 = 56)
Step 2 - 7 to the power of 5 (7 x 5 = 35)
Step 3 - (7 x 8) + (7 x 5) = 91
Step 4 - Divide 91 by 7
Then your answer would be 7 to the power of 13
2.40 x 10^2/ 3.0x 10^-1
Answer:
8
Step-by-step explanation:
Find the value of each variable
Answer:
x = 11
Step-by-step explanation:
1. Because this is a straight angle, (11x + 7)° and (5x - 3)° add up to 180°.
[tex]11x+7+5x-3=180[/tex]2. (Solving)
Step 1: Simplify both sides of the equation.
[tex](11x+5x) + (7-3) = 180[/tex] [tex]16x + 4 = 180[/tex]Step 2: Subtract 4 from both sides.
[tex]16x + 4 - 4 = 180 - 4[/tex] [tex]16x = 176[/tex]Step 3: Divide both sides by 16.
[tex]\frac{16x}{16} = \frac{176}{16}[/tex] [tex]x = 11[/tex]Therefore, x = 11! I hope this helped you.
200 - 50 ÷ 2 x 5 + 20 - 30=with solutionno answerbad answer = repportneed now!
Answer:
95
Step-by-step explanation:
because of bodmas
200-125+20=95
find the distance between AB A( 0 , 10 ) , B( 1 , 3 )
Answer:
7.07
Step-by-step explanation:
d = √(x2 - x1)² + (y2 - y1)²
= √(1 - 0)² + (3 - 10)²
= √1)² + (-7)²
√(1) + (49)
√50
= 7.07
PLEASE HELL ME WITH THIS. I feel like I did it all wrong. I will choose brainliest
Answer:
i good
Step-by-step explanation:
Find the rate of change shown in the table
Answer:
the rise over run
Step-by-step explanation:
Point A is located at (-3, 9) and point B is located at (12,-10). Find the distance from point A to point B rounded to the nearest tenth
Answer:
20
Step-by-step explanation:
[tex] \sqrt{(( - 10) - 9)^{2} + (12 - ( - 3)) ^{2} } [/tex]
[tex] \sqrt{( - 19)^{2} + (15)^{2} } [/tex]
[tex] \sqrt{361 + 225} [/tex]
[tex] \sqrt{586} [/tex]
[tex]24.2074[/tex]
Damon is 7 years older than his brother Mark. The sum of Damon and Mark's age is 29.
Mark is
years old.
Damon is
years old
Answer:
Damon is 18 years old and Mark is 11 years old.
Step-by-step explanation:
I did 29-7=22 Then I did 22/2=11. Then I just added 11+7=18 for Damon and the rest was Mark.
It is predicted that a softball team will win 35 out of their 50 games after 20 games they have won 16 what will be percent error
Answer:
Step-by-step explanation:
Plz Help! A B C or D. I already pressed one but I dont know which one
Answer:
D. y = 50Step-by-step explanation:
Both of the points have same y- coordinate of 50.
It means the slope is zero and the line is parallel to the x- axis.
The line has equation:
y = 50Correct choice is D
Slope
m=50-50/25+25m=0Points are parallel
Equation
y=50In wrestling you score points by performing certain moves. Escapes, takedowns, and nearfalls are moves you can perform to score points. An escapeis worth 1 point, a takedown is worth 2 points, and a nearfall is worth 3 points. Anahi scored a total of 240 points by completing 100 moves. She had 4 times as many takedowns as escapes. How many escapes, takedowns and nearfalls did she have?
Answer: Im gonna take you down like a sweet muffin.
The number of escapes, takedowns and nearfalls Anahi have is 6, 24 and 70 respectively.
How many escapes, takedowns and nearfalls did she have?escape is worth 1 point,
a takedown is worth 2 points, and
a nearfall is worth 3 points.
escape = x
takedown = y
nearfall = z
x + y + z = 100. (1)
x + 2y + 3z = 240. (2)
y = 4x. (3)
substitute (3) into both equation
x + 4x + z = 100
x + 8x + 3z = 240
5x + z = 100. (4)
9x + 3z = 240. (5)
Multiply (4) by 3
15x + 3z = 300 (6)
9x + 3z = 240. (5)
Subtract (5) from (6) to eliminate z
6x = 60
x = 60/6
x = 6
Substitute into (3)
y = 4x
y = 4(6)
y = 24
Therefore, from (1)
x + y + z = 100.
6 + 24 + z = 100
30 + z = 100
z = 100 - 30
z = 70
Read more on equation:
https://brainly.com/question/29174899
#SPJ3
Rate
1-10 i need to know
Answer:9?
Step-by-step explanation: hair
5. Mr. Maldonado has 874 dodgeballs in the gym. 537 balls are blue, and the rest are green. How many of the dodgeballs are green? Answer Statement Equation and Strip Diagram: Strategy and Solution:
Find the area of the shaded portion.
Answer:
Step-by-step explanation:
There's a fact hidden in the diagram that if you do not know it, the problem will be very difficult to solve. The fact is this. If a 60 degree angle is enclosed by the hypotenuse and the other of side of the 60 degree angle. the hypotenuse is 2 times the length of the side.
In this case the hypotenuse is 12. The given side is 6. The third side of the right triangle is 12^1 - 6^2 = 144 - 36 = 108
The length of the third side is sqrt(108) = 6*sqrt(3)= 10.39
The area of one of the triangles is 1/2 * 6 * 10.39 = 31.18
The area of two of the triangles is 2 * 31.18. = 62.36
Now you you have to do is find the area of the unshaded sector
Area = given angle / 360 * pi * r^2
Area = 120/360 * 3.14 * 6^2
Area = 37,68
The area of the shaded part = the area of the 2 triangles - the unshaded sector
The area of the shaded part = 62.36 - 37.68 = 24.68