Answers
I'll answer problem 9 to get you started
Answer: Choice (2) 3x-1 = 2x+3===============================================
Explanation:
We will plug x = 7 into each equation or inequality given to us. Then we determine if we get a true statement or not.
----------------
Let's start with choice (1)
x + 3 > 6
7 + 3 > 6 .... x is replaced with 7
10 > 6
Since 10 is larger than 6, this makes the last inequality true. Therefore, the first inequality is true when x = 7. So we can rule out choice (1) since we are looking for a false statement.
----------------
Move onto choice (2)
3x-1 = 2x+3
3*7-1 = 2*7+3 ... replace every x with 7
21-1 = 14+3
20 = 17
This is false since we don't get the same number on each side. Therefore, choice (2) is the final answer.
----------------
Since we found the answer, we can stop here. But let's keep going to check the others.
choice (3)
2(x+1) = x+9
2*(7+1) = 7+9 ... plug in x = 7
2*(8) = 16
16 = 16
We get the same thing on both sides, so the equation is true. We can rule out choice (3).
-----------------
Now onto choice (4)
[tex]-2x + 10 \le 0\\\\-2*7 + 10 \le 0\\\\-14 + 10 \le 0\\\\-4 \le 0\\\\[/tex]
This is true since -4 is to the left of 0 on the number line, which makes -4 smaller than 0. We can rule out choice (4).
Related Questions
i need help with this
Answers
Answer:
y = 6/5x -5
Step-by-step explanation:
Points are (5,1) (0,-5)
-5 - 1/ 0-5 = 6/5 slope
y-y1= m(x-x1)
y- 1 = 6/5(x-5)
y -1 = 6/5X - 6
y = 6/5X -5
What does the intersection of the two
functions mean?
Answers
♡Answer:♡
it means when the planes cross each other it is perpendicular to each other i think.
♡Step-by-step explanation:♡
♡ ∩_∩
（„• ֊ •„)♡
┏━∪∪━━━━┓
♡ good luck 。 ♡
┗━━━━━━━┛
I know that this is simple algebra but I am asking for your help step by please will mark brainliest for who gets this right.
Answers
Answer: Y= -9 + 3x/2
Step-by-step explanation: Down below Have a brilliant day-Lily ^_^
What is F and D? Geometry
Answers
Answer:
Your answer is
Both F and D is 139
Hope that this is helpful. Tap the crown button, Like & Follow me
PLZ HELP!!!
A Circle has a radius of 6x9y5 Cm.
Answers
5 positive integers are arranged in ascending order, as follows:
7, 8, 11, 11, X
The median and the range are equal.
Find 2.
Answers
Answer:
X = 18.
Step-by-step explanation:
The median = 11 so the mean is also 11 (given).
So mean = 11 = (7 + 8 + 11 + 11 + X) / 5
(37 + x)/ 5 = 11
x + 37 = 55
x = 55 - 37 = 18.
NEED HELP ON THIS PLEASEEEEEEEEEEE
Answers
Answer: i am a 7th grade child and i dont know an idea of how to solve this..... just kidding but its b :) hopefully this will help u
Step-by-step explanation:
Which expression has the same value as 8 – (-1)?
Answers
Answer: 9
Step-by-step explanation:
Two negatives make a positive. So the expression 8-(-1) is equal to 9, because the two subtraction signs the equation create an addition sign, and the equation becomes 8 + 1.
Therefore, 9 has the same value as 8-(-1).
whats the answer to 3x+4=6x+19
Answers
Answer:
x = -5
Step-by-step explanation:
[tex]3x + 4 = 6x + 19\\-3x + 4 = 19\\-3x = 15\\x = -5[/tex]
4=3x+19 subtract 19 from both sides
-15=3x divide by 3 on both sides
-5=x
The answer is x=-5
78 x 92 rounding to 1 significant figure
Answers
Answer:
7176
Step-by-step explanation:
78×92= 156 + 7020= 7176
The following table shows the number of students in a school who like cooking and/or reading:
Like Cooking
Total
Do Not Like
Cooking
Like Reading
12
36
48
8
10
Do Not Like
Reading
18
Total
20
46
66
How many more people like reading than cooking?
28
36
40
46
Answers
Answer:
I did it and is 36
Step-by-step explanation:
Answer:
The first one: 28
Step-by-step explanation:
The total number of people who like cooking is 20 people while 48 people like to read.
48-20 is 28
Fill in the blank with the correct response.
Twenty-eight is 40% of
.
Answers
X=28/0.4
X=70
Answer
70%
Step-by-step explanation:
Shelly made a scale drawing of a room the actual room has a width of 16 feet and a length of 30 feet if Shelly used a scale factor of 2 cm=5 ft for the scale drawing what was the length of the room in the drawing
Answers
Answer:
sixteen times thirty divided by five
Solve 7 ÷ one half = ___.
Answers
Answer: 14
Step-by-step explanation: Good luck! :D
Select all that apply.
Which set of ordered pairs represent a function?
a. {(-7,0), (9,-1),(-4,3), (-4,-2)}
b. {(-1,3), (-10,-5),(-1,-6),(-1, -2)}
c. {(-9,-5), (6,-9), (6, -10), (6, 7)}
d. {(3,3), (3, -1),(3,5), (3,7)}
e. None of the above
Answers
Answer:
c. none of the above
Step-by-step explanation:
how can I solve this equation, 6x + 3y = -12, as y=mx+b?
Answers
Answer:
y=-2x-4
Step-by-step explanation:
6x + 3y=-12 subtract 6x to other side
3y=-12-6x divide 3 to every number
1y=-4-2x
hey does anyone know what 4/5 times 7/8 is ?- its for my math hw and its due in a hour thx!
Answers
Answer:
0.7
Step-by-step explanation: (4/5)*7)/8
Hope this helps:)
Does the following equation have one no or infinite solution 2x + 1 = 2x - 1
Answers
Answer:
zero
Step-by-step explanation:
2x-2x+1=-1
1 doesn't equal -1
Answer:
No solution
Step-by-step explanation:
Select the correct answer.
Tom goes to London for a week. His entire trip costs him £2,000. how many dollars did he spend on this trip if £1 = $1.41?
Answers
Answer:
$2,820
Step-by-step explanation:
Since, £1 = $1.41
Therefore, £2,000 = 2000*1.41 = $2,820
There are 15 trees in a backyard. If 20% of the trees are oak, how many oak trees are there ?
Answers
Answer:
3
Step-by-step explanation:
Take 20 % of the 15 trees in the backyard
.20 * 15
3
There are 3 oak trees in the backyard
Answer:
3
Step-by-step explanation:
divide 15 by 20% or you could just search it on googs ♀️
Which equation represents a linear function?
y= 4x (8 - x)
y= 22 + 13
y= -2
y= 7 – 3x
Answers
WILL GIVE BRAINLIEST!
Translate into a variable expression.
8 divided by the difference between x and 6
Answers
Answer:
[tex]\frac{8}{x-6}[/tex]
Step-by-step explanation:
8 ÷ x-6
Describe the end behavior of the following exponential function.
f(x)=3^x
A. As the x-values increase, the function increases towards negative infinity
B. As the x-values increase, the function increases towards y=3.
C. As the x-values increase, the function increases towards positive infinity.
D. As the x values increase, the function increases towards y=2.
Answers
Answer:
C. As the x-values increase, the function increases towards positive infinity.
Step-by-step explanation:
I will give barinliest please help
Answers
Answer:
Step-by-step explanation:
In order:
50.24,
12.56,
3.14,
200.96,
113.04,
38.465,
153.86,
28.26,
19.625
Someone pls help with this!
Answers
Answer: The last one. It has a proportional relationship of -4.
Step-by-step explanation:
Which of these strategies would eliminate a variable in the system of equations?
10x + 4y = -2
5x - 2y = 2
Answers
Solve for x. Assume that lines which appear to be tangent are tangent.
3x + 3
4x - 3
Answers
A pair of shoes is on sale for 80% of the original price. The sale
prive is $60. What was the original price?
Answers
Answer:
12 dollars
Step-by-step explanation:
Adam purchased some items at the school store. He bought 3 pencils for $0.15 each and 5 single-subject notebook
If these items cost a total of $6.45, what was the cost of each notebook?
O A. $1.20
B. $1.26
O c. $1.29
OD. $1.38
Answers
Answer:
The answer is A
Step-by-step explanation:
Fist multiply 3 and .15 to get .45 for 3 pencils. Then subtract .45 from 6.45 and get 6. Then divided 6 by 5 to get 1.2 for each book
i think the answer is a: $1.20
my work:
3 x 0.15 = 0.45.
6.45 - 0.45 = 6.00
6.00 / 5 = 1.20
and i checked my work by doing 1.20 x 5 + 0.40 = $6.45.
how do i answer this question
Answers
Answer:
a = 2, -7
Step-by-step explanation: