Answer:
the correct answer is (-5)(-9) or A for short
Step-by-step explanation:
Name the property illustrated by 5 (x + y) = 5 (y + x) . a. Distributive Property b. Commutative Property of Addition c. Associative Property of Addition d. Commutative Property of Multiplication
Given:
[tex]5 (x + y) = 5 (y + x)[/tex]
Solution:
Here, we need to find the property illustrated by this equation.
It the given equation, we write (x+y) as (y+x).
According to the Commutative Property of Addition, if a and b are two real numbers, then
[tex]a+b=b+a[/tex]
It means, Commutative Property of Addition is illustrated by the given equation.
Therefore, the correct option is b, i.e., Commutative Property of Addition.
Twice the difference of a number and 5 is 30.
Find the number.
Answer:
A. 20
B. 18.5
C. 10
D. Not here
Let x be the number:
Twice the difference of a number and 5 is 30:
2(x - 5) = 30
Divide both sides by 2:
x - 5 = 15
Add 5 to both sides:
x = 20
Ans: A
what is the value of x in 6 - 4x = 7x - 9x + 10
Answer:
x = - 2
Step-by-step explanation:
Given
6 - 4x = 7x - 9x + 10, that is
6 - 4x = - 2x + 10 ( add 2x to both sides )
6 - 2x = 10 ( subtract 6 from both sides )
- 2x = 4 ( divide both sides by - 2 )
x = - 2
Answer: x = -2
Step-by-step explanation:
The opposite of -8/9 is
Step-by-step explanation:
-9/8 is it's resiprocal
Find an equivalent ratio in simplest terms:
48:16
Step-by-step explanation:
what can go in
both numbers
2,4,8
let use 8 since u said to the simplest form
48÷8=6
16÷8=2
therefore, 6:2
If 3m+5=23, what's 2m-3?
Answer:
9
Step-by-step explanation:
First, you solve the initial equation 3m+5=23.
3m+5-5=23-5
3m=18
3m/3=18/3
m=6
Second, you input the answer 6 into m in the second equation.
2(6)-3
12-3
=9
A recipe uses 12 tablespoons of butter to make 60 servings. How many tablespoons of butter will be used to make 20 servings? A-3 B-4 C-6 D-8
Answer:
B. 4 tablespoons
Step-by-step explanation:
Let’s make a proportion using the following setup:
tablespoons/servings=tablespoons/servings
We know that 12 tablespoons are needed for 60 servings.
12/60=tablespoons/servings
We don’t know how many tablespoons are needed for 20 servings. We can say x tablespoons make 20 servings.
12/60=x/20
Want want to solve for x, so we must isolate x. x is being divided by 20. The inverse of division is multiplication. Multiply both sides of the proportion by 20.
20*(12/60)=(x/20)*20
20*12/60=x
20*0.2=x
4=x
x= 4 tablespoons
4 tablespoons of butter are used to make 20 servings.
You randomly draw twice from this deck of cards
What is the probability of drawing a 3, then drawing an even number without replacing the first card?
Answer:
1/10 or 10%
Step-by-step explanation:
There are 6 numbers:
8, 6, 6, 3, 7, 7Probability of drawing 3 is:
1/6Then probability of drawing an even number is:
3/5 as 3 even numbers out of 5 total numbers leftCombination of two above is:
1/6*3/5 = 1/10 = 10%How do i get the answer to -x-4+3x= -5x -18
Answer:
x = - 2
Step-by-step explanation:
Given
- x - 4 + 3x = - 5x - 18 , that is
2x - 4 = - 5x - 18 ( add 5x to both sides )
7x - 4 = - 18 ( add 4 to both sides )
7x = - 14 ( divide both sides by 7 )
x = - 2
Answer:
Hope it can help you.........
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Which of the following is not a property of a rectangle?
A. Both pairs of opposite sides are parallel
B. Each angle measures 90o
C. Diagonals are congruent
D. All sides are congruent
Measuring Angles. Please help me this is due at 11:59 today
Answer:
115 degrees
Step-by-step explanation:
14x+3+4x+10=157
14x+4x+3+10=157
18x+13=157
18x=157-13
18x=144
X=8
14x+3
(14×8)+3
112+3=115
this is my little brothers work n I don’t even understand it either helpppp
Answer:
92
Step-by-step explanation:
Answer:
92
Step-by-step explanation:
4+4+4 is 12. So you carry the 1 to the tenths place and keep the 2.
(1)
64
14
+14
------
2
Then you add 1+6+1+1, which is 9.
(1)
64
14
+14
------
92
Find the surface area of Earth if the equator is about 24, 902 miles long. Round to the nearest thousand square miles.
O A. 197,387,000 mi 2
O B. 198,227,000 m2
O C. 147,347,000 mi2
D. 297, 387, 000 mi2
Cheyenne is playing a board game. Her score was -275 at the start of her turn, and at the end of her turn, her score was -425. What was the change in Cheyenne’s score from the start of her turn to the end of her turn?
Find the slope and y intercept
y = - 2/3x + 4
Answer:
slope: -2/3 y intercept: (0,4)
Step-by-step explanation:
If a number is odd, then it is an integer and a prime number.
Which is the conclusion of the conditional?
Answer:
The conclusion of the conditional statement is;
it is an integer and a prime number
Step-by-step explanation:
The statement that the argument claims to be true or the statement that the rest of a conditional statement leads to is the conclusion of a conditional statement
Given a conditional statement, also known as an if-then statement, which can be represented symbolically as p → q, such that the hypothesis is p and the conclusion is q.
In the given statement, the hypothesis, p = a number is odd, while the conclusion, q = it is an integer and a prime number
Therefore, the conclusion of the conditional statement is it is an integer and a prime number.
However, only the converse of the statement is true, which is given as follows;
If a number is an integer and a prime number, then it is an odd number
if m is perpendicular to n, solve for x
x + 21 + 3x + 9 = 90
Combine like terms
4x + 30 = 90
Subtract 30 from both sides
4x = 60
Divide both sides by 4
x = 15
Answer:
x = 15
Step-by-step explanation:
You can use the opposite angles property to solve this problem. By using the property, the opposite angle of x+21 must also be x+21. So therefore, you can setup the equation x+21+3x+9=90. Simplify and you should get 4x+30=90. Subtract 30 on both sides and you get 4x=60. Divide 4 on both sides and you get x=15.
Vanessa is creating centerpieces for a reception. Each centerpiece will consist of eight flowers arranged around one candle. Vanessa will create 20 of these centerpieces. Each candle costs $6.00, and each flower costs $1.50. What is the final cost of the centerpieces? $120.00 $240.00 $360.00 $480.00
Answer:
360
Step-by-step explanation:
If you multiply 20 by 6 you get 120
then if you multiply 1.50 by 8 you get 12
then multiply 12 by 20 which equals 240
add 240 by 120 you get your final answer 360
This the formula for the area on a rectangle: Area=(base)(height)
A = bh
Solve for b
Answer:
b = A / h
Step-by-step explanation:
A = b * h
Dividing the equation by h to get b on one side give us:
A / h = b * h / h
A / h = b * 1
A / h = b
b = A / h
40 percent of what number is 520. draw a diagram of the problem
Answer:
Step-by-step explanation:
the number is 1300 if we have 40% from it will give us 520
Determine whether each pair of lines are parallel, perpendicular, or neither. line n: y = -2x-4 line m: y = -2x+8
The given lines n: y = -2x-4 and line m: y = -2x+8 are neither parallel nor perpendicular
What is parallel and perpendicular lines?The slope of the parallel line is 0 and the slope of the perpendicular line is undefined.
The lines are parallel if their slopes are the same but their y-intercepts differ. The lines are not parallel if the slopes differ. Perpendicular lines, unlike parallel lines, do intersect. Their intersection creates a 90-degree angle.
Here given line ,
y = -2x - 4
= y = 2x + 4
Since this is in mx + b form ,
m is the slope
So slope = 2.
Given another line = -2x + 8
Slope = -2
Since slopes are not equal they are not parallel .
Since slopes are not negative reciprocal they are not perpendicular .
To learn more about slopes refer to :
https://brainly.com/question/3493733
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Evaluate the expression
9ab + c if a=-7, b=9, and c = 4
Answer:
-563
Step-by-step explanation:
a = -7 , b = 9 , c = 4
9ab +C
9 × -7 × 9 + 4
81 × -7 + 4
-567 + 4
-563
could someone please help me , i just want to know how is it done & I’ll understand .
Answer:
Step-by-step explanation:
1) 2/5= 0.4
2) 2 1/8= 2.1
3) 4/33= 0.12
4) -6/11= -0.54
Explanation:
In fractions, the numerator is the number above the line and the denominator is the number below.
The line in a fraction that separates the numerator and the denominator represents division.
To convert a fraction to a decimal, divide the numerator by the denominator.
What is J
6-7j-19= -83
Answer:
j=10
Step-by-step explanation:
6-7j-19=-83
-7j-13=-83
-7j=-70
j=10
in a window display at a flower shop, there are 3 spots for 1 plant each. to fill these 3 spots, adam has 7 plants to select from, each of a different type. Selecting from the 7 plants, adam can make how many display arrangements with 1 plant in each spot? (Note: the positions of the unselected plants do not matter.)
Answer: 210
Step-by-step explanation:
We know that the number of combinations of n things taken r at a time is given by :-
[tex]C(n,r)=\dfrac{n!}{r!(n-r)!}[/tex]
So, number of ways to select 3 plants out of 7 = [tex]C(7,3)=\dfrac{7!}{3!4!}=\dfrac{7\times6\times5\times4!}{6\times 4!}=7\times5=35[/tex]
Also number of ways to arrange them in 3 positions = 3! = 6
Now , total number of arrangements with 1 plant in each spot = (number of ways to select 3 plants out of 7) x (number of ways to arrange them in 3 positions)
= 35 x 6
=210
Hence, required number of ways = 210
Since, the arrangement does not matter, we use the principle of combination, Hence, the number of display arrangement possible is 210
Total number of plants = 7 Number of spots = 3This could be defined thus as : (7C3) × 3! ;
3! = number of ways to arrange the 3 plants into the 3 spots
Recall :
nCr = [tex] \frac{n!}{(n-r)!r!} [/tex]7C3 = [tex] \frac{7!}{(7-3)!3!} = \frac{7!}{4!r3!} [/tex]
7C3 = [tex] \frac{7×6×5}{6} = 35 [/tex]
3! = 3 × 2 × 1 = 6
(7C3) × 3! = 35 × 6 = 210 ways
Therefore, there are 210 possible arrangements which can be made.
Learn more : https://brainly.com/question/14767366
If f(x) = x/2 + 8, what is f(x) when x = 10?
4
9
13
36
Solution:
f(10) = 10/2 + 8
f(10) = 5 + 8
f(10) = 13
Best of Luck!
what are the new coordinates of A(5, -3) after reflecting it across the y-axis
Answer:
The new coordinates would be (-5,-3)
Step-by-step explanation:
Reflecting a point of the y-axis changes the sign of the point's x-coordinate.
What is a rotation in geometry?
Angle PSR measures 99°.
Point S has three lines extending from it. One line extends to point P, another to point Q, and the other to point R. Angle P S Q is (3 x + 18) degrees. Angle Q S R is (9 x minus 27) degrees.
What is the measure of AnglePSQ in degrees?
Answer:
Option C: 45 degrees
Step-by-step explanation:
edge2021
Answer:
C) 45°
Step-by-step explanation:
NEED HELP ASAP!!!!!!!!
What was the ratio of combat deaths by diseases?
IN THE CIVIL WAR
Answer:
The ratio is 2:3
Step-by-step explanation:
There was 750,000 total deaths in the civil war
About 500,000 of these deaths were due to disease and uncleanliness.
To simplify, 50:75 is 10:15 or 2:3.
To solve ratios, just simplify down as much as possible.
