adding fractions with unlike denominators
Answer:
-5/6
Step-by-step explanation:
Multiplying numerators and denominators to get the LCD in all fraction denominators
=−7×38×3−1×83×8+3×38×3
Then rewriting the equation with the equivalent fractions
=−2124−824+924
With like denominators we can operate on just the numerators
=−21−8+924
=−2024
Simplifying the answer
=−56
Sweater originally mart $60 is on sale for 25% off how much can you save by buying a sweater on sale
Answer:
you save $12 by buying the sweater on sale
Step-by-step explanation:
A four-person committee is needed to study the ways of improvong piblic
transportation. How many committees could be formed from ten people on the
board of supervisiors?
Answer:
jhgjihSd
Step-by-step explanation:
Answer:
two committees because 4 is in each
Jackson rides his bike from his home for 30 minutes at a fast pace. He stops to rest for 20 minutes, and then continues riding in the same direction at a slower pace for 30 more minutes. Sketch a graph of the relationship of Jackson’s distance from home over time.
Answer:
For the first 30 minutes, we will have a line with a given steepness, this will represent the 30 minutes riding at a fast pace.
Then he stops for 20 minutes, we will represent this with a constant line.
Then he again moves for another 30 minutes, but with a slower pace than in the first 30 minutes, then this line will be less steep than the first line.
A sketch of this situation can be seen below.
When shopping, Tom noticed the price of the items he purchased; each plate and paper towel p cost 0.75, and cups c cost 1.95 each. Determine the amount that Tom spent on his party supplies
Answer:
$2.7
Step-by-step explanation:
0.75+1.95 is 2.7
Hope this helps Mery Christmas!
Answer:
Step-by-step explanation:
since we dont know how much of each item we bought we cant fully do this but here is our equation anyway
y = 0.75p + 1.95c
once we know how many of each item he bought then we can find the final answer
hope this helps <3
b. y =
Choose the equation for the graph
below.
2x-6
a. y =
x+4
3
4x+8
5x+10
C. y =
x²-1
–3x²
2x+6
- 2x2
e. y =
x²_9
d.y=
Answer:
2 4 23
Step-by-step explanation:
1. - 2(x + 11) = -18
Answer:
x = - 2
Step-by-step explanation:
Step 1:
-2 ( x + 11 ) = - 18 Equation
Step 2:
- 2x - 22 = - 18 Multiply
Step 3:
- 2x = 4 Add 22 on both sides
Step 4:
x = 4 ÷ - 2
Answer:
x = - 2
Hope This Helps :)
58 = k + 6 show work if u can
Answer:
[tex]k = 52[/tex]
Step-by-step explanation:
Isolate k:
[tex]58 - 6 = k + 6 - 6[/tex]
solve for k:
[tex]k = 52[/tex]
Answer:
The answer is 52. Like it says move everything to one side
Multiply. 25.5 × 5.46
Answer:
139.23
Step-by-step explanation:
Answer:
The answer is ... 139.23
Step-by-step explanation:
Perform the operation. (-9x^2-2x)-(-9x^2-3x)
Answer:
(-9x^2-2x)-(-9x^2-3x)
Step-by-step explanation:
-9x^2 + 9x^2 - 2x + 3x
= 0x^2 + 1x
= 1x
Mark me as brainliest
Hope this helps!!!
PPPPPPPLLLLLLLLLLLLLLEEEEEEEEEESSSSSSS HELP ME
Mark bought 5 t-shirts for $32.35. What was the mean cost of one shirt?
Answer:
6.47 i THINK . or just use a search engine .
Step-by-step explanation:
i just divided 32.35 by 5
Answer:
6.47 thank me
Step-by-step explanation:
percent change of 14 books to 40 books
Answer:
185.714285714%
A change from 14 to 40 represents a positive change (increase) of 185.71428571428572%
solve each system by graphing.
If you are buying at item at a store for a price of $72, and there is a 6.2% tax added on top, what would be the total amount due at the register, to the nearest cent?
Answer:
Sale Tax($): 4.5
Step-by-step explanation:
Before Tax Price ($): 72
Tax Rate (%): 6.2
Final Price Including Tax ($): 76.46
Sale Tax($): 4.46
Answer:
76.46
Step-by-step explanation:
In triangle ABC, angle A is 35 and angle b is 20 select all triangle which are similar to triangle ABC.
Answer:
The similar one are 1 and 5
A. Triangle DEF where ∠D is 35° and ∠E is 20°.
C. Triangle JKL where ∠J is 35° and ∠L is 125°.
D. Triangle MNO where ∠N is 20° and ∠O is 125°.
What is a triangle?A triangle is a three-sided closed-plane figure formed by joining three noncolinear points. Based on the side property triangles are of three types they are Equilateral triangle, Scalene triangle, and Isosceles triangle.
We know the sum of all the interior angles of a triangle is equal to 180°.
Given, A triangle ABC has ∠A = 35° and ∠B = 20°.
∴ ∠C = 180° - 35° - 20°.
∠C = 125°.
Triangle will be similar if every corresponding angle of different triangles has the same measure.
So, Triangles that are similar to triangle ABC is triangle DEF where ∠D is 35° and ∠E is 20°.
Triangle JKL where ∠J is 35° and ∠L is 125°.
Triangle MNO where ∠N is 20° and ∠O is 125°.
learn more about triangles here :
https://brainly.com/question/2773823
#SPJ2
IM SO DUMB PLS HELP ME I THINK THIS IS ALGEBRA I DONT KNOW??
Answer:
#1 350 trees
#2 10 people
Step-by-step explanation:
using powers of 10, which would be the best choice for the first number to subtract in the division problem 4860/15?
Answer:
150
Step-by-step explanation:
I hope I'm right
Solve the system, enter ur answer as an ordered triple.
Answer:
x = 1, y = -1, z = 3
Step-by-step explanation:
x - 2y + 2z = 9
y + 2z = 5
z = 3
According to the last equation, z is equal to 3 so we can plug that in and our new 2 equations will be:
x - 2y + 6 = 9
y + 6 = 5
We can subtract 6 from both sides of the second equation to end up with:
y = -1
Now plugging this into the first equation, we have:
x + 2 + 6 = 9
x + 8 = 9
Subtract 8 from both sides
x = 1
1. What is the solution of n^2-49=0?
a.-7
b.7
c.+7
d. no solution
2.What is the solution of x^2+64=0?
a.-5
b.8
c.+8
d.no solution
3.What is the side length of a square with an area of 144x^2?
a.12
b.12x
c.+12x
d.no solution
4.What is the value of z so that -9 and 9 are both solutions of x^2+z=103?
a.-22
b.3
c.22
d.184
Answer:
it would be d for #1 because it has no solution for the question
If a household appliance has a wattage of 7,043 and is in use for 9 hours, how much CO2 was produced? Round to 1 decimal.
Answer: = 62.8 pounds of CO₂
Step-by-step explanation:
1 kilowatt per hour produces 0.99 pounds of C02.
The total wattage in hours used was;
= 7,043 * 9 hours
= 63,387 watts
In kilowatts;
= 63,387/1000
= 63.387 kilowatts
CO2 produced;
= 63.387 * 0.99
= 62.75313
= 62.8 pounds of CO2
Please help! 50 points!
Consider the equation 4t + 10 = 34
(A) Write a real-world problem that can be solved using the equation.
(B) What does t represent in your scenario?
Answer:
two people are seeing how far they can throw footballs. one is younger than the other so to make it fair he steps 10 ft forward. the younger competetor throws the ball and it travels 4ft per second. it stops 34 feet from their 'base line'. how long was the football in the air?
t representing seconds
Step-by-step explanation:
i hope this makes sense
im mad tired rn
The same thing that i did last time but just replace with 34
Caroline buys a plant from the store that is 12 cm tall.
Every week, the plant grows 2 cm.
Let heheight of the plant and w=weeks.
Click "show your work" and complete all of the tasks in
the whiteboard
Answer:
Height in w week = 12 + 2w
Step-by-step explanation:
Given:
Height of plant = 12 cm
Rate of plant growth = 2 cm per week
Find:
Equation
Computation:
Height in w week = Height of plant + (Rate of plant growth)(Number of week)
Height in w week = 12 + (2)(w)
Height in w week = 12 + 2w
13.
WRITE Math Write a word problem that involves two fractions.
Include the solution.
Please help fast
Answer: If you have 2/3 cup of water and 3/5 cup of oil, how huch liquid do you have in total?
1 and4/15
Step-by-step explanation:
4(5a + 3) = 20a + 12 represent which property of multiplication?
Answer:
Distributive property of multiplication
Step-by-step explanation:
The distributive property of multiplication is basically distributing the terms outside the bracket to all the terms inside the bracket. In this case, 4 is multiplied to 5a as well as 3.
Is the following relation a function?
Yes
No
Answer:
.....yes
Step-by-step explanation:
if a dinosaur has a mass of 55g, what is his density
Answer:
32ounces I think
Step-by-step explanation:
Help me please *an image is attached*
help lol i need good help-
Answer:
with what
Step-by-step explanation:
Jack plots points showing equivalent ratios on the coordinate plane above.
which ordered pair if plotted above would represent a ratio that is equivalent to those shown?
Answer:
(4,18)
Step-by-step explanation:
it would fit right into the line. i hope this helps.
3x + y = 15 What is the solution of this system of equations? (5x+2y=-4
Answer:
x=34 y=-87 (34,-87)
Step-by-step explanation:
3x+y=15 rewrite to solve for y -----> y=15-3x
5x+2y=-4
Plug y=15-3x into 5x+2y=-4
So, 5x+2 (15-3x)=-4
Distribute: 5x+30-6x=-4
Combine like terms: 30-x=-4
Solve for x -x=-34
Solve for x x=34
Then, to solve for y, plug "x" into 3x+y=15
So, 3(34)+y=15
Distribute: 102+y=15
Solve for y y=-87