Answers
Answer:
Step-by-step explanation:
5x-2y=30
Given x=8
5×8-2y=30
-2y=30-40
y=5
Related Questions
A store buys shoes for $40, then sells them to customers for $160. What is the percent mark-up for the price of the shoes?
Answers
Answer:
its 120 your supposed to divide 120 ÷ 100% and ur answer will be 120
What is the nature of the solution set to the following system of equations?
5x - y = 2
2x-0.5y=3
Answers
Answer:
u can use substitute or eliminate
Need this answer ASAP cuz im dumb.
Mr. Scott likes to pose interesting problems to his Mathematics classes. Today,
he started with the expression 6
2020 + 72020. He stated that the expression was
not equivalent to 132020 and that he was not interested in the actual sum. His
question to his class and to you is, “What are the final two digits of the sum?”
Answers
Answer:
40. This is so easy yet so dumb. Why is this even a question?
Step-by-step explanation:
Answer:
40
Step-by-step explanation:
Can someone help me with the questions in the picture?
Answers
Answer:
7)equilateral
8 and 9)scalene
10,11 and 12) isosceles
Step-by-step explanation:
Equilateral triangle has three equal angles and sides
scalene triangle has unequal angles and sides
isosceles has two equal angles and sides
Divide. Simplify so the quotient is in lowest terms.
1: 1/2 divided by 4
2: 1 3/4 divided by 1/8
please help me lol
Answers
1. 1/2 divided by 4 = 1/8 or 8.
2. 1 3/4 divided by 1/8 = 7/32.
what is 2m×2 to the 7 power
Answers
Answer:
256m
Step-by-step explanation:
not 100% sure but i hope this helps :)
2^1 + 7m
Add the numbers
2^8m
=256m
Solve 4q = 52
Q=
Which statement shows the correct justification for the step used to solve the equation
Answers
♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️
[tex]4q = 52[/tex]
Divide sides by 4
[tex] \frac{4q}{4} = \frac{52}{4} \\ [/tex]
Simplification
[tex]q = 13[/tex]
♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️
Calculate the perimeter for the given figure.
8 ft
8.5 14
.ft
10 11
A. 16.5 feet
B. 25.5 feet
C: 26,5 feet
D. 26.5 feet
Answers
Answer:
the answer is C and D because perimeter is the sum of all sides of a figure
25 pts! Dont copy someone elses work plz
Explain why the equation (x-4)^2-28=8 has two solutions. Then solve the equation to find the solutions. Show your work
Answers
Answer:
x = −2 or x = 10
Step-by-step explanation:
for the explanation see the image
Jordan created a scale drawing of a rectangular room. The drawing is 8 inches long by 6 inches wide. He used a scale of 1 inch equals 3 ft. What is the area, in the square feet, of the room?
Answers
Answer: 432 ft^2
Step-by-step explanation:
If 1"=3', and the box is 8"x6", then we can simply multiply the 8 and 6 by three. You would get 24 by 18.
Follow this up by the equation a=w*l to get
a=24*18 = 432 ft^2.
i will give u brainliest
Answers
Answer:
0.8
Step-by-step explanation:
Divide the numerator and denominator together to find the answer.
19 / 24 = 0.79166...
Round to the nearest tenth.
0.79166... → 0.8
Best of Luck!
Answer:
0.8
Step-by-step explanation:
numerator ÷ denominator = 0.791..
19 / 24 = 0.791..
0.791 to the tenth is 0.8
Hope this helps :)
solve each question -5x + 40= 6x - 70
Answers
Answer:
10=x
Step-by-step explanation:
-5x+40= 6x-70
-5x+110=6x
110=11x
10=x
Answer:
this is da answer
10=x for yoquestion
Helps me solve this problem please
Answers
Answer:
The slope is -3/7 so B
Step-by-step explanation:
Just turn this into slope-intercept form.
what you do is subtract 3x so that it's moved to the right side.
It should look like this -7y = 12 - 3x
Then just divide all numbers by 7 so everything is simplified
It should look like this y = -3/7x - 12/7
pls mark brainliest because i didn't waste you time lol
What is the equation of the line ?
Answers
can you please help meee ,due at 11!
Answers
Find the equation of the line that is perpendicualr to the line y=1/5x-4 and that contains the point (1,1).
‼️ASAP!!! BRAINLIEST!!‼️
PLS HELP!!! SHOW ALL WORK + STEPS!! Thx!
Answers
Answer:
Option A
Step-by-step explanation:
to be perpendicular, the product of two slopes should be -1
the slope of the first equation is 1/5, so the slope should be -5
(1/5) (-5)= -1
y= -5x +b
Substitute (1,1) to solve for b,
b= 6
Thus, the equation is y= -5x +6
The table represents a linear function. WhT is the slope of the function?
Answers
Answer
The slope of the function is 5.
Step-by-step explanation:
Expand.
Your answer should be a polynomial in standard form.
(-1 + 2p)(3 – 4p) =
Answers
Answer:
-1+2p)(3-4p)=
Step-by-step explanation:
is the best one
The correct answer is :-3+10p-8p^2
can i be marked brainlest plz
Translate the following sentence into a mathematical equation. The sum of 10 and five times a number is the same as the difference of the number and 6
Answers
Answer:
The sentence in mathematical form is: [tex]5x+10 = x-6[/tex]
Step-by-step explanation:
The given statement can be converted into a mathematical equation step by step.
First of all, we have to suppose a variable for the number as we don't know the exact number.
So,
Let x be the number then
five times a number => 5x
The sum of 10 and five times a number => 5x+10
the difference of the number and 6 => x-6
Putting in equation form we get
[tex]5x+10 = x-6[/tex]
Hence,
The sentence in mathematical form is: [tex]5x+10 = x-6[/tex]
The local high school is selling candy bars and soda at a fundraiser. The candy bars sells for eighty-four cents and each soda costs $1.35. After the fundraiser was over , the students made $63.84 from the candy bars and $70. 20 from the soda
1. How many candy bars did they sell?
2. How many sodas did they sell?
3. What was the total amount of money made by the high school?
Answers
Answer:
1 84 cents i hope this helped
Kenzie is putting the family vacation videos onto a flash drive. The flash drive can hold 200 minutes of video. Kenzie has used 45% of the memory space already. How many minutes of the flash drive has she already used?
Answers
Answer:
90 minutes
Step-by-step explanation:
In order to calculate a percentage of the minutes of video we simply need to divide the percentage by 100 and then multiply that value by the total number of minutes that the flash drive can hold. Since we are given this total number of minutes then we can simply plug it in and solve for x which represents the percentage of memory used in minutes.
x = 200 * (45 / 100)
x = 200 * 0.45
x = 90 minutes
Therefore, Kenzie has already used 90 minutes of video on the flash drive.
Please please please help John wants to buy a new video game it cost $39.00. He has $14.00 in his piggy
bank. He works for farmer Jones down the street for $5.00 an hour. How many
hours will he need to work before he can buy his new video game? Make and equation
Answers
Answer:
5 hours
Step-by-step explanation:
39 - 14 = 25
5 x 5 = 25
14 + 25 = 39
Answer:
5 hours
Step-by-step explanation:
John needs $39.00, he has $14 now, and He earns $5 a week working. x= how many hours.
Start by setting the equation,
$39.00= $5x + $14.00
Then solve by
1) subtracting 14 from both sides;
39(-14)= 5x+14(-14), by subtracting 14 on both sides you cancelled out the 14;
39 -14 = 5x becomes $25= 5x (39 -14 =25)
2) divide both sides by 5 to get x alone
25 (/5)=5x (/5) which becomes 25/5=x
3) 25/5 is 5
John must work 5 hours to have enough money to buy his video game.
State the class width for the class interval 20-29?
Answers
Answer:
9
Step-by-step explanation:
Class width = 29 - 20 = 9
if g(x)=x²-2 and p(x)=2x+3, find (g·p)(x)
Answers
You do x^2-2 times 2x+3 and use FOIL method to get answer
What is the slope of x=3y+9 and why?
Answers
This morning, Mai's car had 15.25 gallons of fuel. Now, 1.9 gallons are left. How much fuel did Mai use?
Answers
Answer:
13.35
Step-by-step explanation:
Just subtract. 15.25-1.9 gives you the difference.
Mai used 13.35 gallons of fuel.
Unitary method is a process by which we find the value of a single unit from the value of multiple devices and the value of more than one unit from the value of a single unit.
To calculate the fuel Mai used, we can subtract the remaining fuel from the initial amount of fuel.
This can be done as follows:
Initial amount of fuel = 15.25 gallons
Remaining amount of fuel = 1.9 gallons
Fuel used = Initial amount of fuel - Remaining amount of fuel
Therefore, Fuel used = 15.25 - 1.9
Fuel used = 13.35
Therefore, We can conclude that Mai used 13.35 gallons of fuel.
Learn more about the unitary method, please visit the link given below;
https://brainly.com/question/23423168
#SPJ2
i need help please.
Answers
Answer:
Vertex point = (3, -2)
Step-by-step explanation:
13X + 8 = 50 , what is 12x + 8
Answers
Answer:
4(3x + 2)
Step-by-step explanation:
Rewrite 8 as 4 x 2
Rewrite 12 as 4 x 3
= 4 x 3x + 4 x 2
= 12x + 8
Julio says, "If you subtract 18 from my number and multiply the difference by - 3, the result is
- 15." What is Julio's number ?
Answers
Answer:
(X-18)-3=15
3x-54=15
3x=15+54
3x=69
x=23
So jubo's number is 23
A store is having a 20%-off sale on all merchandise. If Mai buys one item and saves $13, what was the original price of her purchase? Explain or show your reasoning.
Answers
Answer:
The original price of her purchase was $65.
Step-by-step explanation:
From the information given, you know that $13 represents 20% of the original price and you can use a rule of three to find the value that represents 100%, which would be the original pice of her purchase:
$13 → 20%
x ← 100%
x=(13*100)/20
x=1300/20
x=65
According to this, the answer is that the original price of her purchase was $65.