Answer:
The error is that the person divided both sides by positive 4.2 rather than negative 4.2. Here's how to correct it:
-4.2x ÷ -4.2 = x, 21 ÷ -4.2 = -5So, x = -5.I hope this helps!
Answer:
He used the commutative property incorrectly. a
Step-by-step explanation:
please help me fast am stuck
Answer:
m = 3/2, Option C
Step-by-step explanation:
m = (y2-y1)/(x2-x1)
m = ( -3-(-6))/(0-(-2))
m = 3/2
0.3 of the 600 students in Morning Star participate in extracurricular activities. How many students participate?
Answer:
18 or 1.8
Step-by-step explanation:
Answer:
5 students
Step-by-step explanation:
divide 0.3/ 600
Please help quickly.
Answer:
A side is added to each image.
Step-by-step explanation:
One line is added each time.
Rewrite the following mixed number as an improper fraction: -8 2/3
Answer:
-22/3
Step-by-step explanation:
to convert a mixed number to an improper fraction:
whole number × denominator + numerator
keep the denominator
-8 × 3 + 2
-24 + 2
-22
keep denominator
-22/3
when adding and subtracting multi digit decimals you must line the decimal point up in both numbers true or false
Answer: true
Step-by-step explanation:
Calcula la distancia que debe recorrer un teleférico, sabiendo que debe salir de la estación de servicio y llegar a la cima de la montaña, cuya altura es de 650m, como se muestra en la figura.
8. A jar holds twenty-seven coins which are either nickels or dimes. The coins are worth $1.95. How many dimes are in the jar?
Answer:19 dimes 1 necke
pleaseeee help im stuckkk
Answer:
2 in 43, 3 in 45, 1 in both 46 and 42, and then a 2 in 44
Step-by-step explanation:
just count how many there is for each thingy for example if you look on the chart there is 3 45s so you'd put 3 in the 45 column
Martine’s town is building a volleyball court based in a scale drawing that is 40centimeters by 80 centimeters and uses the scale 1 cm: 22.5cm
Part B
What are the length and the width in meters of the actual court? Show your work
Select all the correct answers,
Hint
Length: (2)(80) = 900 cm =9 m
Length: (22.5)(80) = 1,800 cm = 18 m
length: (40)(80) =3,200 cm = 32 m
Width: (2)(40) = 80 cm =3 m
width: (22.5)(40) = 900 cm = 9 m
width: (40)(80) = 3,200 cm = 32 m
Answer:
9m by 18mStep-by-step explanation:
Current drawing measurement is 40cm by 80cm using the scale 1cm:22.5cm. This scale means that the original dimension of the court has been reduced by 22.5 for every 1cm. To get the original dimension, we will multiply the given dimension by 22.5cm each as shown.
For 40cm length
Original length = 40 * 22.5
Original length = 900 cm
Convert to metres:
100cm = 1m
900cm = x
cross multiply:
100x = 900*1
x = 900/100
x = 9m
Hence 900cm = 9m
For the 80cm width:
Original width = 80 * 22.5
Original width = 1800 cm
Convert to metres:
100cm = 1m
1800cm = x
cross multiply:
100x = 1800*1
x = 1800/100
x = 18m
Hence 1800cm = 9m
Hence the length and the width of the actual court in metres is 9m by 18m
Your baseball team is selling donuts to raise money for a trip for each dozen of donuts you sell $3.50 goes towards your trip you hope to earn at least $140 for the trip right and solve an inequality that represents the number X of dozen donuts you must sell to reach your goal
How can a regular hexagon be folded to show that it has reflectional Symmetry?
> Fold the Hexagon a line from the vertex to the midpoint of an opposite side.
> Fold the hexagon along a line connecting the midpoints of adjacent sides.
>Fold the Hexagon along a line that bisects two vertex angles.
> Fold the Hexagon along a line that creates a right angle at a Vertex.
Sorry Please Help:)
Answer:
the answer is to fold the hexagon along a line that bisects two vertex angles.
Step-by-step explanation:
pls mark me as a brainllest
Correct way of reflectional symmetry of regular hexagon is given by
Fold the hexagon along a line that bisects two vertex angles.
What is reflectional symmetry?
" Reflection symmetry is a type of symmetry which shows its reflection of its one half plane same as other half."
According to the question,
As shown in diagram drawn of regular hexagon.
Fold the regular hexagon from the line drawn in the diagram to represent the reflectional symmetry.
Hence, we conclude that Option(C ) is the correct answer.
Learn more about reflectional symmetry here
https://brainly.com/question/1531736
#SPJ2
3(x+5)=2(3x+12 can you plz help me
Answer:
x = -3
Step-by-step explanation:
3(x+15) = 2(3x+12)
3x+15 = 6x+24
-6x+3x = 24-15
-3x = 9
x = -3
your welcome
The fourth graders sang on a two-day telethon for the local children's hospital. The hospital hoped to raise $760,000. On day one, they raised $398,139. On day two, they raised $376,173. Did they reach their goal? About how much more or less did they raise? Estimate by rounding to the nearest ten thousand.
Answer:
Kindly check explanation
Step-by-step explanation:
Given that :
Amount hoped to Raise = $760,000
Amount raised on day 1 = $398,139
Amount raised on day 2 = $376,173
Did they reach their goal?
Amount raised on day 1 + amount raised on day 2
$398,139 + $376,173 = $774312
Yes, because ;
$774312 > $760,000
$774,312 - $760,000 = $14,312
Amount was surpassed by $14,312
= $14,000 ( to the nearest ten thousand)
Answer ASAP please. First right answers get brainliest!!
Answer:
1 5 and 6 are functions the rest are not
Step-by-step explanation:
9/10 + -4/5 help please
Answer:
1/10
Step-by-step explanation:
First you've got to find common denominators. The common denominator would be 10 since 10 is divisible by 5 and 10. That means you've got the change the denominator of -4/5. Multiply both the numerator and denominator by 2 to grt -8/10.
Then all you have to do is:
9 + -8 1
——— = —
10 10
Khan academy also has some great videos on this if you're confused.
Is the ratio 12:14 written in simplest form?
1 point
Yes
No
Practice Problems
Answer:
i believe so 12:14 is simplified as 6/7 i think
Step-by-step explanation:
The
square
root of
80
Omg bruhhhhhhhhhhhhhh
Answer:
I don't understand srry
Step-by-step explanation:
byshjssi
Quiana made 5 equal monthly payments from her bank account which rational number shows something being removed 5 time
Answer:
The answer is -5
Answer:
the answer is -5
Step-by-step explanation:
I did this and it was right
Is 5-(-1.5) positive or negative
Answer:
The answer is positive Answer = 6.5
Step-by-step explanation:
A square pool has a side length of s feet. How many 2-foot square tiles does it take to tile the border of the pool?
Explain.
Please help if you can!!
Answer:
2s√2 square tiles will be needed
Step-by-step explanation:
The first thing we need to do here is to calculate the perimeter of the pool.
Perimeter of square = 4L = 4 * s = 4s foot
Now, let’s calculate the side length of a 2 foot square tile
That would simply be √2 foot
So the number of square tiles needed to tile the border of the pool will be;
4s/√2 = (4 * s * √2)/2
= 2s √2 square tiles
The total number of 2-foot square tiles does it take to tile the border of the pool is [tex]2s\sqrt{2}[/tex] and this can be determined by using the formula of the perimeter of the square.
Given :
A square pool has a side length of s feet.
The following steps can be used in order to determine the total number of 2-foot square tiles does it take to tile the border of the pool:
Step 1 - The formula of the perimeter of square can be used in order to determine the total number of 2-foot square tiles does it take to tile the border of the pool.
Step 2 - The formula of the perimeter is given below:
P = 4L = 4s feet
where L is the length of the side of the square pool.
Step 3 - Now, the side length of the square tile is given below:
[tex]\rm a^2=2[/tex]
[tex]a = \sqrt{2}[/tex]
Step 4 - Now, the total number of 2-foot square tiles does it take to tile the border of the pool is:
[tex]=\dfrac{4s\sqrt{2} }{2}[/tex]
[tex]=2s\sqrt{2}[/tex]
For more information, refer to the link given below:
https://brainly.com/question/153858
PLEASE HELP ASAP MARKING BRAINLIEST ⚠️⚠️
use the equation to complete the table
y=3/8x-5
**the last number of the table is 24
Answer:
minus 5 but make sure you change 3/6 to decimal form
Answer:
-8, -5, -2, 1, 4
Step-by-step explanation:
What word is often used as a transition tag to show the progression of the time in a story?
A.since
B.then
C.when
D.only
Answer:
The answer is: C- then
Step-by-step explanation:
Answer:
B. then
Then is often used as a transition tag to show the progression of time in a story.
2x+x+8=3x-2
Is this Infinitely Many Solution
One Solution
Or No Solution
The 2x+x on the left side add to 3x
So we have the equation become 3x+8 = 3x-2
Subtract 3x from both sides to get 8 = -2, but that statement is false.
No matter what we replace x with, the original equation will be false.
(NEED ASAP) what is the measure of ∠b?
Answer:
b= 140 degrees
Step-by-step explanation:
In order to find it, we must know that a lin has an angle of 180.
So woth that, just used that angle to make an equation of
"40+b=180"
Just subtract 40 on both sides and you get
"b=140"
:D
This a questions about angles! Let's see how to solve it:
In this figure, we have a straight angle. A straight angle is a 180 degree angle. In this case, the straight angle is the sum of 40° and b.
So, we can do an equation and solve it. See below:
[tex]40 + b = 180\\b = 180 - 40\\b = 140[/tex]
Therefore, the measure of [tex]\angle b[/tex] is 140°.
12x-39≤9 AND −4x+3<−6
Answer:
9/4 < x ≤ 4
Step-by-step explanation:
Y+3=5(x+1). Solve for y
Answer:
y=5x+2
Step-by-step explanation:
Find the value of x.
Please be quick
Answer:
x = 5
Step-by-step explanation:
19x = 21x - 10
add 10
19x + 10 = 21x
subract 19x
10 = 2x
divide by 2
x = 5
Answer:
x=5
Step-by-step explanation:
(21x-10)=(19x)
2x=10
x=5
Which expression is equivalent to (3x + 2)(2x – 8)?
(1) 6x 2– 16
(2) 6x 2– 26x – 16
(3) 6x 2– 20x – 16
(4) 6x – 16
Answer:
no.3
Step-by-step explanation:
(3x+2)(2x-8)
6x^2 - 24x + 4x - 16
6x^2 - 20x - 16
Answer:
(3) 6x^2 - 20x - 16.
Step-by-step explanation:
(3x + 2)(2x – 8)
= 3x*2x + 3x * -8 + 2*2x + 2*-8
= 6x^2 - 24x + 4x - 16
= 6x^2 - 20x - 16.
Jolene has 30 days to prepare for a
bicycle race. She will bicycle 15 miles
each day. How many miles will
Jolene have bicycled during her
training?
Answer:
450
Step-by-step explanation:
15*30