The statement "If x = -2, then 2x = -4" can be demonstrated using the Multiplication Property of Equality.
Option C is the correct answer.
We have,
The Multiplication Property of Equality states that if you multiply both sides of an equation by the same non-zero number, the equality still holds true.
In this case, x = -2.
Multiply both sides of the equation by 2,
2x = 2(-2) = -4
Thus,
The statement "If x = -2, then 2x = -4" can be demonstrated using the Multiplication Property of Equality.
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4w + 2/7 = -4/5
Need help asap
Convert 240 degrees to radians in form of pi
Answer:
The answer is
[tex] \frac{4\pi}{3} [/tex]Step-by-step explanation:
To convert a value from degrees to radians multiply the value by [tex] \frac{\pi}{180} [/tex]
From the question the value given is
240°
Converting it into radians we have
[tex] \frac{\pi}{180 } \times 240 \\ = \frac{240\pi}{180} [/tex]Simplify
We have the final answer as
[tex] \frac{4\pi}{3} [/tex]Hope this helps you
What is the Greatest Common Factor (GCF)
of 27 and 63?
A. 3 C. 9
B. 12 D.18
Answer:
A
Step-by-step explanation:
Answer:
9
Step-by-step explanation:
WILL GIVE BRAINLY!!! Kiara is making treat bags to give her friends. She has 36 bags of chips and 54 candy bars. She wants to use all of the food to make identical bags. What is the greatest number of bags she can make with no food left over?
Question 12 options:
36 bags
54 bags
18 bags
6 ba gs
Answer:
18 bags
Step-by-step explanation:
the ratio of the chips to the candy is :36/54 =4/6=2/3
it means for 2 bags of chips , you will put 3 candy bars
you will need 18 bags with no food left
If the midpoint of the line segment with endpoints (-4, b) and (8, 0) is (2, 1). What is the value of b
Answer:
B=2
Step-by-step explanation:
[tex](\frac{8+x_1}{2} )(\frac{0+y_1}{2})[/tex]
[tex](\frac{8+x_1}{2} )=2[/tex] multiply 2 by 2=4 then write [tex]8+x_1=4[/tex] subtract 8 from both sides 4-8= -4
[tex](\frac{0+y_1}{2} )=1[/tex] multiply 2 by 1=2 then write [tex]0+y_1=2[/tex] subtract 0 from both sides
2-0=2
To check [tex]MP= (\frac{x_1+x_2}{2} )(\frac{y_1+y_2}{2} )\\[/tex]
[tex]MP= (\frac{-4+8}{2} )(\frac{2+0}{2} )[/tex] -4+8=4 2+0=2
[tex]MP= (\frac{4}{2} )(\frac{2}{2} )[/tex] 4/2=2 and 2/2=1 MP=(2,1)
A lioness hunting antelope runs a distance of 60 m in 15 s. Then she stops to survey the herd for 20 s. Next, she trots for 25 s over 60 m around the edge of the herd. Finally, the lioness races after the antelope, traveling 120 m in 20 s. What is the average speed of the lioness?
Answer: The average speed is 3m/s.
Step-by-step explanation:
We can define the average speed as the quotient between the total distance traveled in a given period of time, and that period of time,
Here we have that:
d = distance
t = time.
"A lioness hunting antelope runs a distance of 60 m in 15 s"
1) d = 60m, t = 15s
"Then she stops to survey the herd for 20 s"
We add 0 meters to the distance, and 20 seconds to the time.
2) d = 60m + 0m, t = 15s + 20s = 35s
"she trots for 25 s over 60 m around the edge of the herd."
we add 60m to the distance, and 25s to the time
3) d = 60m + 60m = 120m, t = 35s + 25s = 60s.
"Finally, the lioness races after the antelope, traveling 120 m in 20 s"
we add 120m to the distance and 20s to the time.
4) d = 120m + 120m = 240m, t = 60s + 20s = 80s.
Then the average speed of the lioness in that period of time is:
S = 240m/80s = 3m/s
What are the next 2 numbers in the sequence? *
8, 16, 24, ...
28, 32
30,36
32, 40
48,96
Answer:
5
Step-by-step explanation:
Olivia wants to purchase a discounted road bike for $250. This is $18 more than the cost of the road bike at full price.
What is the original price of the road bike?
Answer:
$268
Step-by-step explanation:
Jonathon is eight years old. His mom is four times his age. What is the sum of their ages?
Answer:
40
Step-by-step explanation:
8*4=32+8=40
Morgan, Dakota and Taylor showed their work solving the equation 7x + 5x +1= 73. Identify the student with the invalid first step and justify your reasoning. Morgan 7x + 5x + 1 = 73 12x + 1 = 73 Dakota 7x + 5x + 1 = 73 7x + 6x = 73 Taylor 7x + 5x + 1 = 73 7x + 5x = 72
Answer:
Morgan, Dakota and Taylor showed their work solving the equation 7x + 5x +1= 73. Identify the student with the invalid first step and justify your reasoning. Morgan 7x + 5x + 1 = 73 12x + 1 = 73 Dakota 7x + 5x + 1 = 73 7x + 6x = 73 Taylor 7x + 5x + 1 = 73 7x + 5x = 72
Step-by-step explanation:
24 = b - 3
i need to solve this with 2 steps + work
Answer: b =27
Step-by-step explanation:
24 = b -3 Just add 3 to both sides
+3 +3
b = 27
Answer:
b=27
Step-by-step explanation:
Let's solve your equation step-by-step.
24=b−3
Step 1: Flip the equation.
b−3=24
Step 2: Add 3 to both sides.
b−3+3=24+3
b=27
Answer:
b=27
Simply the following question in the photo
Answer:
Step-by-step explanation:
what is the equation for point (1,-2) PLEASE HELP MEEEE
Mallory bought a pizza and sodas for her birthday party. If she spent
$12.57 on the sodas and $10.95 for each pizza, how many pizzas did she
buy if she spent $89.22?
Answer:
She had 7 pizzas.
Step-by-step explanation:
.....
A square garden has sides 100 ft long. You want to build a brick path along a diagonal of the square. How long will the path be? Round your answer to the nearest
foot.
The length of the diagonal of the square rounded to the nearest foot is 141.2 feet.
What are the dimensions of a square?The area of a square is a product of it's any two sides or a product of diagonals divided by two. If the side has a length then the diagonal is a√2.
The perimeter of a square is the sum of the lengths of all the sides.
Given, A square garden has sides 100 ft long.
Now, If we draw a diagonal it becomes a right-angled triangle with a height of 100 ft and a base of 100 feet.
Therefore, By applying Pythagoras' theorem we have,
The length of the diagonal is = √(100² + 100²).
= √(10000 + 10000).
= √(20000) feet.
= 141.42 Or 141 feet.
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What is the value of x? Enter your answer in the box. x =
Answer:
27 =x
Step-by-step explanation:
The two angles are vertical angles and vertical angles are equal
4x+7 = 5(x-4)
Distribute
4x+7 = 5x-20
Subtract 4x from each side
4x+7-4x = 5x-4x-20
7 = x-20
Add 20 to each side
7+20 = x-20+20
27 =x
Answer:
x = 27
Step-by-step explanation:
Since they are corresponding they have to be equal.
4x+7 = 5(x-4)
4x+7 = 5x-20 distribute the 5
7 = 5x-4x-20 bring the 4x over
7 = x-20 simplify the x
7+20= x bring the twenty over
27=x
an atom has an atomic number of 12 and a mass number of 25.how many neutrons does the atom have?
Answer:
The atomic number is the number of protons (12) and the mass number is the number of neutrons and protons combined. So you'd subtract 12 from 25 (25-12=) and that'd get you 13 as your answer. If you need to find the number of electrons, it'll be the same as the number of protons unless it has a certain charge and if it does, if it's positive it has more protons (+) than electrons (-), if it is negative it has more electrons (- negatively charged) than protons (+ positively charged)
(credits to halltho)
A bird leaves its nest and travels 20 miles per hour downwind for x hours. On the return trip, the bird travels 4 miles per hour slower and has 6 miles left after x hours. a. What is the distance of the entire trip? __miles b. How long does the entire trip take? __hours __minutes __seconds
Tom has twice as many cents as Jim has nickels. Jim has $2.55 more than Tom. How much has Jim?
Answer:
jim has money
Step-by-step explanation:
because he does
Answer:
vce4sw3?
Step-by-step explanation:
Several mountain climbers move up a mountain
starting from sea level. On the first day, they
climb up 1
2
of a mile. On the second day, they
move up the mountain 5
8
of a mile. On the third
day, they climb up 10
12 of a mile. On the fourth day,
bad weather forces them to climb down 4
6
of a
mile. How far above sea level are the climbers
after four days?
Answer:
2 5/8
Step-by-step explanation:
:)
r= 0.75s for s solving for a variable ANSWER PLEASE ASAP
Answer:
S= 1.3r
Step-by-step explanation:
The 3 is underlined because it was suppose to go on top of the 3 but it didn't give me the option but that means infinity of 3
If you need more information you cant tell me hope this helped!
Can someone help me with this? Please
Answer:
I'm kind of confused what the question is asking. If they are asking for an expression to represent JL then the answer is 14x -32. If they want to know the distance between J and L then the answer is 66
Step-by-step explanation:
First I set the 2 equations equal to each other (5x-2 = 9x -30) and solved this to get x =7. (ANSWER ONE)
Next I plugged 7 into one of the equations (in this case either one will work bc JK and KL are the same distance. so I plugged 7 into the first one ( 5(7) -2 ) and I got 33. This means the distance of JK (and KL since they are equal) is 33.
Next I multiplied 33 by 2 since JL is JK and KL combined ( JK and KL are both 33 and therefore adding them together (multiplying 33×2) will give you the length of JL) and I got 66 (ANSWER 2)
Sorry if this is super confusing
Salvador‘s class has collected 88 cans in a food drive they plan to sort the cans into X bags with an equal number of cans in each bag. write an expression to show how many cans there will be in each bag
Mary deposits $550 in a savings account at 3% simple annual interest. The value of this account, v, is given by the function v = 550 + 16.5t, in which t is the number of years the money is in the bank. What is the domain & range of this function?
Answer: [tex]Domain = \{t: t\geq 0\}=[0,\infty)[/tex] and [tex]Range = \{v: v\geq 550\}=[550,\infty)[/tex].
Step-by-step explanation:
It is given that, the value of this account, v, is given by the function
[tex]v=550+16.5t[/tex]
where, t is the number of years the money is in the bank.
We need to find the domain & range of this function.
Domain is the set of input values. Here, the domain is number of years which cannot be negative. So,
[tex]Domain = \{t: t\geq 0\}=[0,\infty)[/tex]
Range is the set of output values. Here, the range is amount after simple interest which cannot be less than the principal value.
[tex]Range = \{v: v\geq 550\}=[550,\infty)[/tex]
What is the value of x in the equation 2/3x + 3 = 7
Answer:
6
Step-by-step explanation:
2/3x=4
then 4/ 2/3 (you can just input this in a calculator)
it equals 6!
Answer:
x=6
Step-by-step explanation:
2/3x + 3 = 7
subtract 3 from both sides to get
2/3x = 4
divide 2/3x by 2/3 to isolate the variable
2/3x ÷ 2/3 = 4
what you do to one side you do to the other, so divide 4 by 2/3 as well, then you get
2/3x ÷ 2/3 is x
4 ÷ 2/3 is 12/2 which is equal to 6.
x=6
A car rental company charges rs 500 a day
and rs 8 to per km for renting a car.
Prakash rents a car for two day and
his bill comes to & 1644. How
many
kilometeres did he drive ?
Answer:
total bill=1644
let he drives x kilometer
then
500*2+8*x=1644
1000+8x=1644
8x= 1644-1000
8x= 644
x= 644/8=80.5 km
Step-by-step explanation:
11. Which statement is true about the characteristics of the three lines in
the graph?"
They have the same equation
They have the same slope
They have the same x-intercept
O They have the same y-intercept
The length of a rectangle is 7 inches more than its width. The perimeter of
this rectangle is 78 inches. Find the length of this rectangle.
First known equation is:
2L + 2W = 46
Second equation is:
L = W +7
Put the variable L of the second equation in the first equation.
2(W+7) + 2W = 46
2W +14 +2W = 46
4W = 32
W=8
Then resolve L using any of the above initial equations
L = 8 + 7 = 15
Verify: 2L +2W = 46
2(15) + 2(8) = 30 + 16 = 46 = perimeter
Step-by-step explanation:
Let the length = 7x
Let the breadth = x
As we know that
perimeter of rectangle =2(l+b)
Also perimeter here = 78 inches
Acc. to question
2(l+b) = 78 inches
[tex]2(7x + x) = 78[/tex]
[tex]16x = 78[/tex]
[tex]x = \frac{78}{16} [/tex]
[tex]x = 4.8[/tex]
so bredth = 4.8 approx
length = 7*4.5 =31.5 approx
Hope it helps u
what’s the ratio of $30 in 2 hours.
Answer:
$15 per hour
Step-by-step explanation:
what’s the ratio of $30 in 2 hours.
= $30 / 2 hours
= $15 per hour
Unit rates! PLZ HELP WILL GIVE BRAINIEST!!
Answer:
The answer is $10.32aprox
Step-by-step explanation:
I hope it will help u
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