. The cost of petrol rises by 2 cents a liter. last week a man bought 20 liters at the old price. This week he bought 10 liters at the new price. Altogether, petrol costs $9.20. What was the old price for 1 liter?
Help please I have know idea
Answer:
B
Step-by-step explanation:
9x-3x = 6x
4-3=1
6x =1
x= 1/6
Answer:
the answer is 1/6 hope it helps
plz mark as brainliest
What is 2+5.=
and please right in a way I will understand!! and I already know the answer
Answer:7
Step-by-step explanation:
1+1=2
1+1+1+1+1=5
5+2=7
Answer:
2+5= 7
Step-by-step explanation:
If you know how to count to seven than its easy. So you have 1,2,3,4,5 and then you want to add two so 1,2,3,4,5+2=1,2,3,4,5,6,7.
Hope this helps. Tried to explain the way I'd teach someone who doesn't actually understand. Plz give brainliest.
What is the surface area of the polyhedron? Show your reasoning.
Area of top triangle = [tex]\frac{b \cdot h}{2} = \frac{4 \cdot 3}{2} = \frac{12}{2} = 6[/tex]
Area of bottom triangle = Area of top triangle = [tex]6[/tex]
Area of left rectangle = [tex]l \cdot w = 6 \cdot 4 = 24[/tex]
Area of middle rectangle = [tex]l \cdot w = 6 \cdot 5 = 30[/tex]
Area of right rectangle = [tex]l \cdot w = 6 \cdot 3 = 18[/tex]
Area of polyhedron = top triangle + bottom triangle + left rectangle + middle rectangle + right rectangle = [tex]6 + 6 + 24 + 30 + 18 = 84[/tex]
Surface area the given polyhedron is equals to 84square units.
What is surface area?"Surface area is the total area of all the surfaces occupied by any three dimensional body."
Formula used
Area of right angled triangle = ( 1/2) × base ×height
Area of rectangle = length ×width
According to the question,
As per the given diagram,
Two right triangles with equal measurement
Base = 4units
height = 3 units
Hypotenuse = 5units
Substitute the value in the formula we get
Area of 1 right angled triangle = ( 1/ 2) × 4 × 3
= 6 square units
Therefore,
Area of 2 right angled triangle = 2 × 6
= 12 square units ___(1)
Rectangle 1
Length = 6units
width = 4 units
Area of rectangle 1 = 6 × 4
= 24 square units ___( 2)
Rectangle 2
Length = 6units
width = 5 units
Area of rectangle 2 = 6 × 5
= 30 square units _____(3)
Rectangle 3
Length = 6units
width = 3 units
Area of rectangle 3 = 6 × 3
= 18 square units ___( 4)
Add(1) ,(2) , (3) , and (4), we get
Surface area of the polyhedron = 12 +24 +30 +18
= 84 square units
Hence, surface area the given polyhedron is equals to 84square units.
Learn more about surface area here
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Matthew bought a jersey for $39.99, a pennant for $10.25, and a hat for $13.75. He paid with a $50 bill and the rest he borrowed from his friend. If Matthew got $6.01 in change from the cashier, how much did he borrow from his friend to pay for all the items?
Answer:
$7.98
Step-by-step explanation:
39.99+10.25+13.75=63.99
Subtract $6.01 = 57.98
Subtract until you get to $50 which is $7, Add ¢98 and you have your answer.
Answer = $7.98
Best of luck!!<3
Rewrite x/-4 ≥ -1 so the negative sign in the fraction is with x
Answer: 4 over 1
Step-by-step explanation:
What kind of polyhedron can be assembled from this net?
rectangular prism
cube
rectangle
rectangular pyramid
Q1. If ∛5x+10=5, Find x
Answer: x=-25
Step-by-step explanation:
Concept to know:
When given a number that is cubic root, in order to solve the equation/function, you need to cube numbers on both sides.
Solve:
Given
∛5x+10=5
Subtract 10 on both sides
∛5x+10-10=5-10
∛5x=-5
Cube numbers on both sides
5x=-125
x=-25
Answer:
x = -25Step-by-step explanation:
If ∛5x+10=5, Find x
∛5x = 5 - 10
∛5x = -5
take both sides of equation to the power of 3
5x = -125
x = -125/5
x = -25
Look at screen shoot ! math btw again -_-
More than one answer :)
in order:
1) multiply each donation
2) add the total amount of money
3) 2550 / 25 = 102
Given the statement, select all figures that apply
RECTANGLE - SQUARE - RHOMBUS
1- Diagonal are congruent -
2- Diagonals bisect each other-
3- Diagonal from right angles-
4- All sides are congruent-
5- Diagonals are angle bisectors-
6- All angles are congruent-
Answer:
4-All sides are congruent-
I will write the steps to solve a one-variable, two-step equation and inequality.
(what kind of circle would you have if you had to graph the inequality)
3x + 4 = 13
2x - 4 > 12
There are three parts to this question.
Answer:
open circle
Step-by-step explanation:
open circle is greater than < and less than > and closed circle are the ones with the line under the symbol
The product of negative five-ninths and the sum of a number and three-point-one is thirteen-point-seven.
Answer:
-5/9 · x + 3.1 = 13.7
Step-by-step explanation:
product = multiplication
five-ninths = 5/9
sum = answer to an addition problem
three-point-one = 3.1
thirteen-point-seven = 13.7
A gold mine has two elevators, one for equipment and another for the miners. The equipment elevator descends 7 feet per second. The elevator for the miners descends 16 feet per second. One day, the equipment elevator begins to descend. After 27 seconds, the elevator for the miners begins to descend. What is the position of each elevator relative to the surface after another 11 seconds? At that time, which elevator is deeper? please answer a simple answer for grade 7
Step-by-step explanation:
Time for equipment elevator = 11 seconds + 27 seconds = 38
Time for elevator for miners = 27 seconds
Speed of equipment Elevator = 7 feet/ sec
Speed of Miner elevator = 16 feet/ sec
Distance traveled by Equipment Elevator = Speed * time
= 7 * 38 = 266
Distance traveled by Miner Elevator = Speed * time
= 16 * 11 = 176
266 > 176
Therefore, The Equipment Elevator is deeper than the Miner Elevator
Depth of Equipment Elevator = 266m
Depth of Miner Elevator = 176m
I hope its Helpful,
Brainliest?
can someon hlp me on question 2
first correct answer gets brainliest
what is the solution to the equation 2 ( 3x + 1 ) + 2x =8x + 1? A.1 B.2 C.no solution D. all real numbers
Answer:
D all real numbers because they are all real numbers
Step-by-step explanation:
Answer:
I think it's d.
Step-by-step explanation:
HELP PLZZ GIVING BRAINLEST
Answer:
The answer should be (5.5,-4)
Answer:
on side go to 4 and move out to between 5 and 6
Step-by-step explanation:
#1) What is the most efficient way to isolate and solve for the variable? *
look at picture :)))) its jsu math that i dont really wawnt to do
Answer:
you are correct
Step-by-step explanation:
A handyman charges a flat rate of $150, plus $25 per hour for house painting. A painter charges $55 per hour for house painting. Which equation could be used to determine, h, the number of hours each would have to work for their fees to be the same? 150 – 55h = 25h 150 – 55h = 25h 150 + 25h = 55h 150 + 25h = 55h 150 – 25h = 55h 150 – 25h = 55h 55h + 150 = 25h
Answer:
150+25=55
Step-by-step explanation:
i cnt promise the right answer but i tried and
got really confused really quick
hope i helped
Need help on hw
10-20 pts brainliest :)
Five students bought the same style of shoes at five different stores. The prices they paid are listed below. $24.50, $19.25, $28.25, $22.50, $15.50 , Whats the mean absolute deviation?
A - 2.6
B - 4.4
C - 0
D - 3.7
Answer:
[See Below]
Step-by-step explanation:
_____________________________________________
✦ Mean Absolute Deviation (MAD): The average length between all the data and the mean.
_____________________________________________
✦ First solve for the mean of the data:
✧ Add together all the values:
[tex]24.50+19.25+28.35+22.50+15.50=110.1[/tex]✧ Now divide by how many numbers or data you have:
[tex]110.1[/tex] ÷ [tex]5=22.02[/tex]_____________________________________________
✦ Now we solve for MAD:
[tex]3.716[/tex]_____________________________________________
~Hope this helps Mate. If you need anything feel free to message me.
Please help cuz i ok with math but not this type of math so PLEASE HELP ME!
Answer:
y=1x-4
Step-by-step explanation:
The original is
y=mx+b
m is the slope and b is the y intercept
Answer:
y = 1x -4 or y = x - 4
Step-by-step explanation:
Slope intercept formula is y = mx + b
y = y coordinate
x = x coordinate
m = slope
b = y- intercept
So using that guide you just plug in the values we know the slope is 1 and the y-intercept is -4 so it would be y = 1x - 4
If you have any questions about it feel free to ask! Hope this helps and have a great day!
2x squared minus 17 equals 183
what is the value of x
Answer:x=10
2
2×10=200-17=183
Garrett must inspect a bridge that goes over a river. He begins 18 feet above water level to inspect the lighting, descends 32 feet to inspect the base of the bridge underwater, then descends another 4 feet to check on the concrete anchoring the base. Which best represents Garrett’s position with respect to the water level?
Answer:
C
Step-by-step explanation:
i took quiz
Why does
(x=m)2 + (y-d)2=s2
make a circle
Answer:huh
Step-by-step explanation:
what is the answer to 5(x + 9) - 4 = 51
The value of x would be 2
PLZ HELP I don't get it
Answer:
I think it is B
Step-by-step explanation:
more points!!!!!!!!!
Answer:
c
Step-by-step explanation:
Answer:
your answer is 150 cubic inches
Step-by-step explanation:
In the following equation, c and d are both integers. What is the value of d?
4cx –5c = -12x + d
