Answer:
1. x=4
2. x=15
Step-by-step explanation:
1. Add '-42' to each side of the equation.
42 + -42 + -2x = 50 + -42
Combine like terms: 42 + -42 = 0
0 + -2x = 50 + -42
-2x = 50 + -42
Combine like terms: 50 + -42 = 8
-2x = 8
Divide each side by '-2'.
x = -4
Simplifying
x = -4
2.
Add '35' to each side of the equation.
-35 + 35 + 7x = 70 + 35
Combine like terms: -35 + 35 = 0
0 + 7x = 70 + 35
7x = 70 + 35
Combine like terms: 70 + 35 = 105
7x = 105
Divide each side by '7'.
x = 15
Simplifying
x = 15
I will mark the brainiest! Please, and thanks! :)
(For the second one, just put it down on a piece of paper and upload a pic)
Thomas and Sydney have a combined age of 57. Thomas is 13 years older than triple Sydney’s age. How old is Thomas? You must create a system of equations and use substitution to solve.
57-13=44. If Sydney is 11, then Thomas is 46. 11x3=33, and 33+13=46. To check our answer, we will add 46+11. 46+11=57.
I needed to solve for X did I do it right?
Answer:
you have to distribute the 4 to both parts so it would be 4x-8=34
so then it would be 4x=42
X=10.5
Step-by-step explanation:
Answer:
Yes you are right x=9
Step-by-step explanation:
Im in need for the answer to my question
Answer:
OK I'll go help
Step-by-step explanation:
Have a great day! :)
How to Rewrite 8 + 36 as a product of their GCF and the sum of two factors
Answer:
4 (2 + 9)
Step-by-step explanation:
Given expression:
8 + 36
The greatest common factor is the highest number that divides a number:
8 and 36 ;
Factors of 8 : 1,2,4, 8
36 : 1, 2, 3, 4, 9, 18, 36
The highest common factor is 4;
8 + 36 = 4 (2 + 9)
Use the diagram at the right to determine x and y. AB and CD are
straight lines.
Name a pair of vertical angles:
Find the measure of
Answer:
x=30
y=52
verticle angles: AOC and DOB
Step-by-step explanation:
-1 + a = -6
solve for a
Answer:
-1+a=-6
move constant and change its sign
a=-6+1
add the number... then the Answer is :-
a=-5
I HOPE THIS HELPS
HELP DN#!#errfreeeeeeeeeeeeeeeeeew
Answer:
d
Step-by-step explanation:
What term is defined by the formula?
gr
Select the correct answer.
Martin is interested in the new hypermiling movement which focuses on getting the best miles per gallon (MPG) when driving. He gathered
some data about the weights, in thousands of pounds, of different cars and their average MPG. The graph below shows the results of Martin's
research
y
42
36
30
.
24
Miles Per Gallon
18
12
6
X
0
Car Weight
(thousands of pounds)
Select the true statement based on the graph.
СА
The situation shows neither correlation nor causation
Answer:
The correct option is;
The situation shows correlation without causation
Step-by-step explanation:
The given data are;
Weight y [tex]{}[/tex] Miles Per Gallon
42 [tex]{}[/tex] 18
36 [tex]{}[/tex] 12
30 [tex]{}[/tex] 6
. [tex]{}[/tex] x
24 [tex]{}[/tex] 0
The first difference of the data = 42 - 36 = 36 - 30 = 30 - 24 = 6
18 - 12 = 12 - 6 = 6 - 0 = 6
The first difference of the data is constant and equal to 6
Therefore, the graph is a straight line graph with y-intercept = 24 and slope given by the rate of change of the weight to the miles per gallon of fuel consumption as follows;
The rate of change of the weight to the miles per gallon of fuel consumption is given as follows;
(42 - 24)/(18 - 0) = 1
Therefore, the points of the data fit into the straight line and the data of the situation shows correlation
In order to show causation, and to rule out other possible causes for the rise in MPG, a separate experiment will be required whereby the cause for the rise in MPG can be determined.
Answer:
The situation shows correlation with causation.
Step-by-step explanation:
A correlation between two variables is a measure of the strength of the association between them.
It can be seen from the scatter plot that as the weight of the car increases, the miles per gallon decreases.
Causation between variables indicates that one of the variables causes the other variable to occur. Causation between variables always implies correlation.
The weight of the car affects the miles per gallon because cars that weigh more require more power to move. Hence, heavier cars get lower miles per gallon of fuel.
Therefore, the situation shows correlation with causation.
This came straight from the website the question is on.
help please :(((aaaa
Answer:
i think its b
Step-by-step explanation:
Answer:
it for sure the second one
Step-by-step explanation:
What’s 9x38328292672
Answer:
344954634048
Step-by-step explanation:
Theres something called a caculator
Answer:
344954634048
Step-by-step explanation:
can i get brainliest
Calculate the average speed of a boat that travels 600 meters in 40 seconds.
Answer:
15 meters in 1 second
Step-by-step explanation:
Divide 600 by 40 which is 15
so it travels 15 meters in 1 second
hope this helps!
Answer:15 meters per second
Step-by-step explanation:
600/40= 15
-4 2/3 times (-1 1/2)
SHOW YOUR WORK TO GET BRAINLIEST~~~~!!~
Answer:
-4 2/3 times (-1 1/2)
Step-by-step explanation:
14.6 repeatingPlease help! I’ll give brainleist!
Which of the following is an irrational number?
A) √0.036
__
B) 7.25
C) √1
D) 10
Ron’s class donated d dollars to a local charity. Danny’s class donated 21% more than Ron’s class. Which expression shows the amount Danny’s class donated in terms of the amount donated by Ron’s class?
A.
1.21d
B.
0.79d
C.
d + 0.79d
D.
d + 0.21
Answer:
+0.21
Step-by-step explanation:
Answer:
It is A
Step-by-step explanation:
Had This Question
The scatterplot shows the average monthly outside temperature and the monthly electricity cost.
Based on the scatterplot, what is the best prediction for the electricity cost if the temperature for the month is 18°C?
A)
$250
B)
$350
$450
D)
$500
Answer:
b is the awnser to your question
Step-by-step explanation:
A house costs $18,000, which is 9/10 the cost of a car. A motorcycle costs 1/5 the cost of the car, or 4/5 the cost of 100 cards. How much is the cost of 30 cards?
PLZ PLZ PLZ PLZ PLZ HELP!!!!!!!!!!!!!
Three times the difference of a number and 5 is the same as twice the number, decreased by 3. Find the number
Answer:
x = 12
Step-by-step explanation:
3 (x-5) = 2x - 3
3x -15 = 2x - 3
x-15 = -3
x = 12
check:
21 = 21
The number as decribed (Three times the difference of a number and 5 is the same as twice the number, decreased by 3) in the question is; 12
According to the question;
Three times the difference of a number and 5 is the same as twice the number, decreased by 3.The word problem can be written and solved as follows;
3(x - 5) = 2x -33x -15 = 2x -33x -2x = 15 -3x = 12Read more:
https://brainly.com/question/1640242
Store A
Store B
What is the amount of sales tax charged on the
repaired computer at Store A?
Computer
Repair
$1,200
$1,350
Sales Tax
6%
7%
Gratuity
15%
15%
Shipping
Free
2% of total
price
Answer:
72
Step-by-step explanation:
What is 5,836,197 rounded to the nearest hundred
Answer:
Rounded to the nearest hungered is 5,836,200
Lucy owns a bakery. She has 2 cakes baked and can bake 4 cakes every
hour. Write an equation for the number of cakes baked, c, in h, hours. *
equation?
Answer:
c=4h+2
Step-by-step explanation:
you start of with 2 cakes and every hour you can bake 4
Angad,malachy and Jim share £30 in A ratio 1:3:1 how much does each person get
Answer:
Angad=6
Malachay=3×6=18
Jim=6
Step-by-step explanation:
Angad,malachy and Jim share =£30 ratio =1:3:1
Let the part of the Angad=X
=3x
=X
So X+3x+X=30
5x=30
X=30/5
X=6
So part of Angad=6
Malachay=3×6=18
Jim=6
Step-by-step explanation:
A:M:J
1:3:1
let total amt be 5x
5x = 30
x = 6
thus, A get 6dollars , M get 18 and J 6
Topic: ratio and proportions
If you like to venture further, feel free to check out my insta (learntionary). I'll be constantly posting math tips and notes! Thanks!
Graph the linear equation y= -2/3x+4
"on a recent test, Ahmed knew many of the answers, but there were four"
Answer:
Thank you for sharing Ahmeds brilliance with us.
Step-by-step explanation:
Rita goes for a bike ride on a trail by her house. After 15 minutes of riding she sees a mile marker. When she reaches the third mile marker, she realizes that she has been biking for 30 minutes. What is the rate at which she is riding?
Given:
Rita covered 1 mile in 15 minutes.
She covered 3 miles in 30 minutes.
To find:
The rate at which she is riding.
Solution:
Let y be the number of miles covered in x minutes.
Rita covered 1 mile in 15 minutes. So, the point is (15,1).
She covered 3 miles in 30 minutes. So, the point is (30,3).
Slope of the line:
[tex]m=\dfrac{y_2-y_1}{x_2-x_1}[/tex]
[tex]m=\dfrac{3-1}{30-15}[/tex]
[tex]m=\dfrac{2}{15}[/tex]
Therefore, she is riding [tex]\dfrac{2}{15}[/tex] miles per minute.
If f(x) = 3x + 2, then find the value of x such that f(x) = -4. A. -14 B. -10 C. -2 D. 14
Answer:
C.
Step-by-step explanation:
f(x) = 3x+2
f(x) = -4
-4 = 3x+2
-4-2 = 3x
-6 = 3x
-6/3 = x
-2 = x
x = -2
Please anybody help
Answer:
-4 just kidding it is 3
Step-by-step explanation:
THIS IS FOR 60PTS SO ANSWER Explain how you got your answer 4x-20+2x-12=10
Answer:
x = 0.333...(repeating or .34 if u round)
Step-by-step explanation:
add 4x and 2x= 6x
20- 12 = 8
6x + 8 = 10
-8 -8
6x = 2
6 6
x = 0.333...(repeating or .34 if u round)