Given:
Two planks are each 1.5 m long.
One plank is 2.5m long.
To find:
The total length of all the three planks.
Solution:
Two planks are each 1.5 m long. So,
First plank = 1.5 m
Second plank = 1.5 m
One plank is 2.5m long. So,
Third plank = 2.5 m
Now, the total length of all the three planks is
[tex]\text{Total length}=\text{First plank + Second plank + Third plank}[/tex]
[tex]\text{Total length}=1.5+1.5+2.5[/tex]
[tex]\text{Total length}=5.5[/tex]
Therefore, the total length of all the three planks is 5.5 m.
Khan Academy question thanks for whoever answers
Answer:
A.
Step-by-step explanation:
The tens digit is twice the units digit. Reverse the digits, add 2 and the new number is 34 less than the original number. Find the original number.
Answer:
Step-by-step explanation: X and Y represent the digits.
The tens digit is twice the units digit.
The digit in the Tens place has 10× its base value, so we can set up equations to model the information given.
10x +y 10y +x are Original & Reversed numbers
X = 2y means the Tens digits is twice the units digit.
10y + x +2 = 10x +y - 34 models the statement: The reversed number plus two is 34 less than the original number.
Substitute 2y for x to solve for y
10y +2y +2= 10(2y) + y -34
Distribute and combine like terms
12y + 2 = 20y +y - 34
34 +2 = 21y -12y
36 = 9y Divide both sides to find the value of y.
4 = y
X = 2(4) Substitute 4 for y to find x
X = 8
Original number: 84 Reversed number: 48
Substitute into equation model
48 +2= 84 -34
50 = 50
True!
select the three objectives mosquitoes hovered around the small puddle of still murky water in the background
Answer:
Step-by-step explanation:
two more than 16 times a number is the same as 21 less than the product of -7 and the number
Answer:
-1Step-by-step explanation:
Let the number be x, and we have equation:
16x + 2 = -7x - 2116x + 7x = - 21 - 223x = - 23x = -1The number is -1
Answer:
-1
Step-by-step explanation:
"a number" = x
-- "Two more than 16 times a number." | 16 times a number means "16x" | Two more than just means add 2.
(16x + 2)
-- "Is the same as" means equals.
(16x + 2) =
-- 21 less than the product of -7 and the number | The product of -7 and the number means "-7x" | 21 less than means subtract 21.
(16x + 2) = (-7x - 21)
-- solve for x.
(16x + 7x) = (-21 - 2)
-- combine like terms.
23x = -23
-- Divide.
x = -1
what is 42 meters long and 39 meters wide
Answer:
1,638 m^(2)
Step-by-step explanation:
We have to find the area of the floor in order to know how many square meters of flooring they need.
The area of the floor is:
42 m* (39 m)= 1,638 m^(2)
a car travels 100 miles in 4 hours. what is its average speed
Answer:
[tex]Speed \: of \: the \: car \: is \: = \frac{100}{4} = 25 \: miles {(hours)}^{ - 1} [/tex]
look at pic and answer plz
Answer:
D.
Step-by-step explanation:
the total amount is $1200 per month
225+375= 600
1200/600= 1/2= 0.50=50%
Find the value of x.
The triangle is equilateral, because all three angles will measure 60 degrees. This means that all three sides are equal, so:
7x + 19 = 11x - 89
4x = 108
x = 27
Janice wants to paint this figure on her wall in her bedroom. If paint cost $3.89 per square unit, how much will it cost to paint this figure on her wall?
Answer:we need to know the size of the wall
Step-by-step explanation:
Katelyn had $132. She spent $28 buying gifts for her friends and $32 on books. Estimate how much money she has left by first rounding all numbers to the nearest ten and then subtracting.
Answer:
Pretty sure it's $70.
Step-by-step explanation:
The first thing you need to do is round to the nearest ten. To do that you see if $28 is closer to $20 or $30. And it is closer to $30. The see if $32 is closer to $30 or $40. And it's closer to $30. Then you subtract $132 minus $30 minus $30. And you get $72. If they are asking what the nearest ten is for the answer, then it would be $70.
Answer:
70
Step-by-step explanation:
Pls i have 20 of these to do
Answer:
1. 12
2. 27
3. 27
Step-by-step explanation:
I think these are correct
2x-6> -16 and 3x-10≤8 Graph the solution to this inequality on the number line.
Answer:
Go to desmos. com and you can graph and see the points of it
Step-by-step explanation:
Desmos. com <----- It's going to be your friend dude
Math10. com
Can someone please help! Its just Area so it should be pretty simple but I am stuck please help!
Answer:
3 and 7
Step-by-step explanation:
Does 9 in 15 in 17 in make a right triangle
Answer:
No, they don't.
Step-by-step explanation:
Look at the picture for the explanation. Using the side-side-side rule, it's shown that 9,15, and 17 don't make a right triangle.
Please help me I need the correct answer!!
Answer: ok so i think the answer is 4.2 or 5.2 if im wrong then well sorry
Step-by-step explanation:
Answer:
I think it is B
Step-by-step explanation:
What is g(-5) equal to?
Answer:
-5g
Step-by-step explanation:
Multiply -5 and g.
Solve the following expression when
a = 2 and d = 5
d2 + 3a + 6 + a
Answer:
given d=5 and a=2
5x2+ 3x2+6+2
10+6+6+2
=24
If Jill and Erika charge $2.00 per quart, how much money will they make if they sell all of their lemonade?
Answer:
Number of quarts=16
Money earned=$32
Step-by-step explanation:
Given
4 Gallons of lemonade is prepared
They charge $2 for a quart
1 Gallon= 4 Quarts
Therefore Number of quarts
Therefore Number of quarts of lemonade prepared by them = 16 quarts
As they charge $2 for each quart
⇒
Total money made if they sell it all
Therefore, if they are to sell all the lemonade that they prepared
They would earn=$32
Step-by-step explanation:
https://brainly.com/question/13881728
what is -6=x/18 please
Answer: -108
Step-by-step explanation:
-6 = x/18
-6 * 18 = x
-108 = x
Identify the GCF that was factored out of the polynomial -7t2 -42t -49
Answer:
-7
Step-by-step explanation:
You could take out a factor of -7.
-7t²/-7 = t²
-42t/-7 = 6t
-49/-7 = 7
So the GCF is -7.
Two sets are shown in the Venn diagram. Set N represents the natural numbers, and Set W represents the whole
numbers. in which set does the values -45 belong?
Answer:
In my opinion this is the whole w
Step-by-step explanation:
Answer:
c
Step-by-step explanation:
both
Please help me I give Branliest
Jessica is buying chicken wings and hamburger meat for a party. One bag of chicken wings costs $6. Hamburger meat costs $3 per pound. She must spend no more than $30. She also knows that she needs to buy at least 5 pounds of hamburger meat. Which system of inequalities can be used to determine the number of bags of chicken wings, x, and the number of pounds of hamburger meat, y, that Jessica should buy?(
Answer:
6x+3y≤30
6x+3y≤30=x
x≥5
Step-by-step explanation:
math , help plss thnx
Answer:
The answer is
[tex]y = \frac{1}{4} x - 2[/tex]
Step-by-step explanation:
Remmeber:
[tex]Slope = \frac{rise}{run} [/tex]
Jose has $800 in his checking account you withdrawals 40 per week for groceries write an equation that Jose can use to find out how many weeks it takes for him to have the remaining balance of $400
I just need number 23 and 25 please show work
Answer:
devide 1080 by 5 and 2880 by 5 the it will 216 and 576
Answer: 1080 is an. Octagon, 8 sides
180 is a triangle.
2880 is an 18gon 18 sides
Step-by-step explanation:
Divide the sum of the interior angles by 180 and add 2 to the dividend.
1080/180=>6+2=8
180/180 => 1 +2 =3
2880/180=> 16+2= 18
A bicycle shop advertised all mountain bikes priced at a 1/3
discount. If the original price is $432, what is the sales
price?
Answer:
$288
Step-by-step explanation:
1/3 of a discount is = 2/3 of price
Multiply 432 by 2/3 and get 288.
Answer:
$288
Step-by-step explanation:
A 1/3 discount is .3333333... percent and so you simplify to .33 or 33% of a discount.
Multiply 432x.33 = 144
Subtract 432-144 to get 288 as you answer
please help me with these
Answer:
#1
106/175
#2
4 1/3
#3
3 3/4
#4
10 3/8
#5
1/6
(2x10^5) divided by (4x10^2)
Answer:
[tex]\huge\boxed{0.5\times10^3=0.5\times1,000=500}[/tex]
Step-by-step explanation:
[tex](2\times10^5)\div(4\times10^2)=\dfrac{2}{4}\times\dfrac{10^5}{10^2}\\\\\text{use}\ \dfrac{a^n}{a^m}=a^{n-m};\ a\neq0\\\\=0.5\times10^{5-2}=0.5\times10^3=0.5\times1,000=500[/tex]
1. 2. 3. Or. 4. Please help me I know is easy for u
Answer:
3
Step-by-step explanation:
3
Answer:
3
Step-by-step explanation:
An intercepted arc has a length of 19 yards. If the radius is 4 yards, find the measure of the central angle in radians and degrees.
The length of an arc is the distance between the endpoints of the arc.
The central angle is: [tex]\mathbf{4.75\ rad}[/tex] or [tex]\mathbf{272.16^o}[/tex]
The given parameters are:
[tex]\mathbf{l = 19yd}[/tex] --- length of the arc
[tex]\mathbf{r = 4}[/tex] -- radius of the circle
The length of an arc is calculated as:
[tex]\mathbf{l =r\theta}[/tex]
Divide both sides by r
[tex]\mathbf{\theta = \frac lr}[/tex]
Substitute known values
[tex]\mathbf{\theta = \frac{19}4}[/tex]
[tex]\mathbf{\theta = 4.75\ radians}[/tex]
Convert to degrees as follows:
[tex]\mathbf{\theta = 4.75 \times \frac{180}{\pi}}[/tex]
[tex]\mathbf{\theta = 4.75 \times \frac{180}{3.142}}[/tex]
[tex]\mathbf{\theta = 272.16^o}[/tex]
Hence, the central angle is: [tex]\mathbf{4.75\ rad}[/tex] or [tex]\mathbf{272.16^o}[/tex]
Read more about length of arcs at:
https://brainly.com/question/15832640