what was the first thing that was mad in the history
The first thing ever made in the history of men (probably in the 4th century) was the invention of a wheel.
When using re-grouping to solve 21 x 43, what are the four products that would be calculated and then added?
800 + 3
80 + 40 + 60 + 3
800 + 40 + 60 + 3
800 + 40 + 6 + 3
Answer:
c
Step-by-step explanation:
21×43
=(20+1)×(40+3)
=800+40+60+3
how do I do 6,413-764 show your work, I will give brainliest
(I'm in middle school but i have long term memory and I forget how to do subtraction please help me)
Answer:
the answer is 5649
Step-by-step explanation:
What is the slope of the line, y=5−4x?
Answer:
(m) =
ΔY
ΔX
= 0
Step-by-step explanation:
Answer:
the slope is -4
Step-by-step explanation:
You are given the equation y=5-4x. You can put that into slope intercept form. Slope intercept form is y=mx+b where b is the y intercept and m is the slope. In this equation the slope is -4 and the y intercept is 5. You can rearrange this equation into slope intercept form. If you do this you will get y=-4x+5.
Hope this helps :)
Please give brainiest
HELP PLZ BEFORE I FAIL!
Answer: The clock hour hand moves 66 degrees in 2 1/5 hours.
Step-by-step explanation: (30/5)+(30x2)=X
Write an expression to represent the perimeter of the figure below.
Step-by-step explanation:
A perimeter is when you add up all of the sides
Here would be our equation
[tex]2(x+4)+2(2x-8)[/tex]
Answer: The expression for this would be 2(x+4) + 2(2x-8)
Step-by-step explanation:
This is because when we calculate perimeter, we add up all the sides. So, instead of doing (x+4)+(x+4), we can just do 2(x+4) and add up all sides. So, here’s the answer in simplest form!
6x - 8. Hope this helped!
Answer 2,4,6 please!!!
Hellppp meeeeeee PLEASEEEEE can y’all help
Answer:
90
Step-by-step explanation:
11 + 34=45
45+45=90 your welcome
Omg please help I cannot rn
I did 26 in class, the rest I just can’t
Will reward brainliest for best and complete answer PLEASE!!!!
Answer:
17) 1/2b^4
18) x^4/y^2
19) y^3/2x^4
20) 1/9m^2
21) 1/2r
22) 1/4x^5
23) n
24) ½
25) 3/m^7
27) z^3/xy^2
28) 2h^3 k^3/3j^4
29) 4m^2 n/3p
30) 3x^7/yz
Step-by-step explanation:
Someone please help. I will give brainliest.
2. -56
1. 35x
3. 60mph
5. 10.33
4. 13.05$
6.5
7. 34
8.14.09
9.1200
10.53
12. 67.0
13. 6.21
14. 32
Hope it helps you!!! :D
Answer:
Step-by-step explanation:
Which graph represents a proportional relationship?
The school band has a goal of raising $800 for some new uniforms. If they have raised $512 so far, what percent of their goal have they raised?
Answer: 64%
Step-by-step explanation:
The band needs $800 for new uniforms and of that, they only raised $512.
Set up a proportion [tex]\frac{part}{total} = \frac{percentage}{100}[/tex]and plug everything you know in.
[tex]\frac{512}{800}[/tex] = [tex]\frac{x}{100}[/tex]
Solve for x by cross multiplying and dividing.
512 × 100 = 51200
51200 ÷ 800 = 64
x = 64
The school band has raised 64% of their goal already.
Answer:
The Answer would be 64%
Click to see the picture! NO LINKS
Using subsitution, which value of x makes this equation true? x+1/6=1
x=13
x=23
x=56
x=76
Answer:
5/6
Step-by-step explanation:
ive had this question
Max needs to subtract 75.8 – 12.431. He notices that the larger number does not have any digits in the hundredths or thousandths places. How can Max solve this problem? Use what you know about subtracting decimals to tell Max the steps he should take to solve this problem, and help him solve it.
Answer:
63.369
Step-by-step explanation:
Answer:
63.369
Step-by-step explanation:
you just add two zero's to 75.8 which is 75.800 and then 12.431 stays the same. so therefore, it'll be 75.800 - 12.431 = 63.369. YOU'RE WELCOME :) HOPE I HELPED !!!!
The model represents an equation. What value of x makes the equation true?
Answer:
D
Step-by-step explanation:
Answer:
4/7
Step-by-step explanation:
Please help I need thiss done right noww
Answer:
-14 is one
sorry i don't have anything eles
Answer:
-14 or [tex]\frac{140}{-10}[/tex] or [tex]\frac{70}{5-10} }[/tex]
Step-by-step explanation:
I hope this helps!!!
The sum of the interior angles of any triangle is equal to:
A. 90°
B.120°
C. 180°
D.240°
E. 360°
PLEASE give me the answer im really stuck and tried so many times this is for a grade!! Thanks :)
The answer is c. 180
Sabantolo used the rule "Add 8" to make a pattern. He started with 16 and wrote the next 5 numbers in his pattern. His pattern is below.
16, 24, 30, 38, 46, 54
Is Sabantolo's pattern correct?
A.
Yes. Sabantolo's pattern is correct.
B.
No. The pattern should be 16, 24, 32, 40, 48, 56.
C.
No. The pattern should be 16, 22, 30, 38, 46, 54.
D.
No. The pattern should be 16, 24, 30, 36, 44, 52.
Answer:
Answer is B. Hope this helped :)
Step-by-step explanation:
Answer:
the answer is B!
25 points for this please help with step by step
a) 20.9
The mean is calculated by adding up the scores and dividing the total by the number of scores, it is also called the average.
First, we can count and see there are 11 players (makes sense for a football team). Adding up the ages gives us 19 + 19 + 20 + 20 + 20 + 21 + 22 + 22 + 22 + 22 + 23 = 230. Divide by 11 and we get a mean of of about 20.9!
b) 30
To figure this out, we will set up an equation that looks like this:
[tex]\frac{19 + 19 + 20 + 20 + 20 + 21 + 22 + 22 + 22 + 22 + 23+x}{12} =22[/tex]
And now we will solve:
[multiply both sides by 12] 230 + x = 264
[subtract 130 from both sides] x = 30
So the age of the new player should be 30!
Have a nice day!
I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly. (ノ^∇^)
- Heather
Answer:
For A its 21
Step-by-step explanation:
add all the numbers which is 105, then divide it by 5 because thats how many numbers we have. the answer is 21
Irma works for a service that delivers groceries and pet supplies. She earns a base monthly salary of $1,900. In addition, she gets a commission of 1.8% of the cost of each grocery order, plus a fee of $11 for each delivery of pet supplies.
Part A
How is calculating Irma’s total annual earnings different from calculating earnings based on salary and commission?
Answer:
Irma also gets $11 for each delivery.
Step-by-step explanation:
can someone help me wit this?
Create a proportion from the given set of numbers:
Example: 1, 6, 2, 3
Proportion is 1:2=3:6
25) 3, 6, 7, 14
Proportion is _________________
26) 2, 6, 5, 15
Proportion is _________________
27) 7, 2, 14, 4
Proportion is _________________
28) 2, 2, 1, 4
Proportion is _________________
29) 10, 5, 8, 4
Proportion is _________________
30) 3, 12, 8, 2
Proportion is _________________
Answer:
so from the example heres what i think is correct 25) proportion is 3:7= 14:6 26) 2:5=15:2 27) 7:14=4:2 28) 2:1=4:2 29) 10:8=4:5 30) 3:8= 2:12
Step-by-step explanation:
evaluate 13+ab,when a= 2.5 and b=3.
Michelle's cookie recipe calls for 3/4 cup of brown sugar to make 3 dozen cookies. Which of the following shows an amount of brown sugar that would make the corresponding amount of cookies? Choose all that apply.
Answer:1/2 cup of sugar makes 1 dozen cookies
1 cup if sugar makes 4 dozen cookies
Step-by-step explanation:
Answer:
1/2 cup of sugar makes 1 dozen cookies so, 1 cup of sugar makes 4 dozen cookies
Solve.
−5.6x=−4
What is the solution to the equation?
Enter your answer as a simplified fraction in the box.
Answer: 0.714285
Step-by-step explanation:
The solution of the equation (-5.6 = -4) is (x = 5/7) and this can be determined by using the arithmetic operations.
Given :
-5.6x = -4
The following steps can be used in order to determine the solution to the equation (-5.6x = -4):
Step 1 - The arithmetic operations can be used in order to determine the solution to the given equation.
Step 2 - Write the given equation.
-5.6x = -4
Step 3 - Add 4 on both sides in the above equation.
-5.6x + 4 = -4 + 4
-5.6x + 4 = 0
Step 4 - Add 5.6x on both sides in the above expression.
-5.6x + 4 + 5.6x = 5.6x
4 = 5.6x
Step 5 - Divide 4 by 5.6 in the above expression.
[tex]x = \dfrac{4}{5.6}[/tex]
Step 6 - Simplify the above expression.
[tex]x = \dfrac{5}{7}[/tex]
For more information, refer to the link given below:
https://brainly.com/question/2096984
Select the slope-intercept form of an equation for a line with y-intercept =−5and slope =2.
Answer:
Y= -5x+2
I plugged all of the equations in to a coordinate plane
Sue earns $1,200 per week as a computer operator. Her husband Jim earns $2,000 per week working as a teacher. What are Sue’s monthly earnings?
Answer:
4800
Step-by-step explanation:
Her monthly earnings are $4,800
[tex]1200 \times 4 = 4800[/tex]
Since she earns $1,200 per week, and there are 4 weeks in a month, you multiply both of the numbers and get the answer.
Hope that helped:)
The total change in the outdoor temperature over 6 hours was -21°F
What was the mean change in temperature per hour?
₋₋₋₋₋₋₋₋ °F per hour
Answer:
-3.5
Step-by-step explanation:
As there was a total change of -21, that would be the first part of your equation:
-21
As 6 hours had passed and you are trying to find the mean, your equation would now be:
-21 ÷ 6 = ?
Now you can solve the equation, and the answer is -3.5°F per hour.
The mean change in temperature per hour is -3.5 °F.
what is Unitary Method?The unitary technique involves first determining the value of a single unit, followed by the value of the necessary number of units.
For example, Let's say Ram spends 36 Rs. for a dozen (12) bananas.
12 bananas will set you back 36 Rs. 1 banana costs 36 x 12 = 3 Rupees.
As a result, one banana costs three rupees. Let's say we need to calculate the price of 15 bananas.
This may be done as follows: 15 bananas cost 3 rupees each; 15 units cost 45 rupees.
Given:
The total change in the outdoor temperature over 6 hours was -21°F
So, in one hour the mean change in temperature
= -21/6
= -3.5 °F
Hence, the mean change in temperature per hour is -3.5 °F.
Learn more about unitary method here:
https://brainly.com/question/22056199
#SPJ2
Todd and his friends are painting 5 equal sections of a wall. The wall is 10 feet tall, but its length is unknown.
Each section will be a different color, so they need to know the area of each section.
so , i said 5/10x area = length * width A=10*x a= 10x
then i said you should divide , next i said 10x/5 10x in five sections is 2 in each q1 said area 10*x but x=2 so 10*2=20 is this correct?