Answer:
± [tex]\sqrt{20}[/tex]
Step-by-step explanation:
Given
x² = 20 ( take the square root of both sides )
x = ± [tex]\sqrt{20}[/tex]
A car is travelling 300 km along a motorway in 10 800 seconds. How fast is it travelling in:
a) km/s
b) km/h
c) m/s?
A liquid storage container is being filled at a constant
rate. The container is being filled at a rate of ġ gallon
minute.
How many gallons of liquid will be in the container in 4
minutes?
1
per
1. Unit rate:
gallons
O 12 gallons
3
gallons (4) gallons
minutes (4)
1 minute
16
gallons
3
O 48 gallons
2. Find the equivalent rate for 4 minutes.
Answer:
16/3
Step-by-step explanation:
Answer:
c c c c c c cc
Step-by-step explanation:
2+4=10
4+6=28
5+2=15
6+3=24
Then,
7+9=?
Answer: 16
Step-by-step explanation: 7 + 9 = 16
Hope this helps
Plz mark Brainliest
Classify the number of seats in different classrooms in the school.
a.Qualitative and Continuous
b.Quantitative and Continuous
c.Quantitative and Discrete
d.Qualitative and Discrete
Answer:
a.Qualitative and Continuous
Step-by-step explanation:
The first term of an AP is -76 and the sum of first 45 terms is -9360. Which of the following is the last term of this AP
Answer:
- 340
Step-by-step explanation:
The sum to n terms of an AP is
[tex]S_{n}[/tex] = [tex]\frac{n}{2}[/tex] ( a + l ) → a is the first term and l the last term
Here a = - 76 and [tex]S_{45}[/tex] = - 9360 , thus
[tex]\frac{45}{2}[/tex] ( - 76 + l ) = - 9360
22.5(- 76 + l) = - 9360 ( divide both sides by 22.5 )
- 76 + l = - 416 ( add 76 to both sides )
l = - 340 ← the last term in the sequence
How is solving for speed similar to solving for time?
They both require that two numbers be added.
They both require that two numbers be subtracted.
They both involve writing a rate.
They both use the same units of measure,
Answer:
They both involve writing a rate.
Step-by-step explanation:
i got it right
Answer:
It's C.
How I got this answer:
I Knew that since they both required two numbers being added and subtracted that if it's being added and subtracted that it would involve a rate.
( Please correct me me if I'm wrong or I was too late to answer :} )
The table shows the side lengths and perimeters of four squares.
Side Length (x)
Perimeter (y)
4.5
18
8.5
34
10.25
41
13.75
55
Which equation represents the relationship between the side length, x, and the perimeter, y?
Answer:
the perimeter of square is 4 times of side of that square.
Explanation:
Side length (x) perimtr (y)
4.5 4 × 4.5 =18
8.5 4 × 8.5 =34
10.25 4 × 10.25 =41
13.75 4 × 13.75= 55
thus
y = ( x)2
Answer: ths answer is B
Step-by-step explanation:
where are my smart people at help please
Answer:
3x+2
Step-by-step explanation:
q(x) plus f(x) is the same as (x+1) plus (2x+1), so:
1x+1
2x+1
------------
3x+2
Hope this helps!
Answer:
i think its
q(x) + f(x) = 3x+2
What equation is ALWAYS TRUE?
Answer:
2
Step-by-step explanation:
Pls Help anyone. Ill will give brainliest and you will get 45 points pls anyone pls ㏒㏒㏒㏒㏒㏒
D is the midpoint of C. E has coordinates (-3,-4), and D has coordinates (7,5). Find the coordinates of
C.
The coordinates of Care
Answer:
i need a pic to answer
Step-by-step explanation:
sorry
Find the value of x and YZ if Y is between X and Z. Draw, label, set up the equation and solve each for :
4. XY = 5x, YZ=x, and XY=25
5. XY = 12, YZ=2x, and XZ = 28
7. XY=2x + 1. YZ = 6x, and XZ=81
6. XY = 4x. YZ=3x, and XZ = 42
Step-by-step explanation:
We need to find the value of x for all problems if Y is between X and Z.
For all cases, XZ = XY+YZ
4. XY = 5x, YZ=x, and XZ=25
Putting all values
25 = 5x + x
25 = 6x
[tex]x=\dfrac{25}{6}[/tex]
5. XY = 12, YZ=2x, and XZ = 28
28 = 12 + 2x
x = 8
6. XY = 4x. YZ=3x, and XZ = 42
XZ = XY+YZ
42 = 4x + 3x
42 = 7x
x = 6
7. XY=2x + 1. YZ = 6x, and XZ=81
XZ = XY+YZ
81 = 2x + 1 + 6x
80 = 8x
x = 10
PLEASE ANSWER At a basketball game, 75% of people attending were supporting the home team, while 25% were supporting the visiting team. If 750 people attending the game supported the home team, what was the total number of people attending the game?
75% = 0.75
750 people / 0.75 = 1,000 people
There were 1,000 total people attending the game
Answer:
1,000 people
Step-by-step explanation:
At a basketball game, 75% of people attending were supporting the home team, while 25% were supporting the visiting team. If 750 people attending the game supported the home team, the total number of people attending the game was 1,000 people.
75% = 3/4 or 0.75
25% = 1/4 or 0.25
We need to find what 25% is.
75/3=25
75% = 0.75
750 people / 0.75 = 1,000 people
Therefore, there were 1,000 people at the game.
Thank you if you do help!:,)
Answer:
B
Step-by-step explanation:
PEMDAS
8 + 2^3 x 5
8 + 8 x 5
8 + 40
48
What is 75% of 140?
Favian received a $100 gift card to a clothing store.
Using only the gift card, he was able to purchase n
sweaters that cost $32 each and 1 belt for $20. If there
was no tax on the sweaters and belt, which of the
following must be true?
Answer:
32n = 100 - 20
n = 2.5
he purchased 2 sweaters
Step-by-step explanation:
32n = 100 - 20
If Favian originally had $100 but spent $20 on a belt, he only had 80 left, meaning that 80 = 32n which means that he was able to but 2 sweaters and got $16 back. Therefore the formula would be 32n = 100 - 20
The formula for the number of sweaters will be 32n = 100 – 20.
What is the linear system?A linear system is one in which the parameter in the equation has a degree of one. It might have one, two, or even more variables.
Favian received a $100 gift card to a clothing store.
Using only the gift card, he was able to purchase n sweaters that cost $32 each and 1 belt for $20.
If there was no tax on the sweaters and belt,
Then the equation will be
32n + 1 x 20 = 100
32n + 20 = 100
32n = 80
n = 2.5 ≈ 2
If Favian originally had $100 but spent $20 on a belt, he only had 80 left, meaning that 80 = 32n, which means that he was able to but 2 sweaters and got $16 back.
Therefore, the formula would be 32n = 100 – 20.
More about the linear system link is given below.
https://brainly.com/question/20379472
#SPJ2
Larry ran 4/5 of the way around the track before slowing down to a walk. What percent of the track did he run? *
Answer:
80%
Step-by-step explanation:
4 divided by 5 = 0.8
0.8 x 100 = 80%
The percentage Larry ran around the track = 80%
He ran 4/5 of the way around the track before slowing down for a walk.
This means he ran 4 parts of the whole 5 parts of the track. He walks the remaining 1 part around the track.
Therefore, the percentage he ran can be calculated below
% he ran the track = 4 / 5 of 100
% he ran the track = 4 / 5 × 100 = 400 / 5 = 80%
The percentage he ran around the track = 80%
Read more : https://brainly.com/question/2420956?referrer=searchResults
What is the answer to 45 − (−28) =
Answer: 73
Step-by-step explanation:
45 - (-85) = 73
Hope this helps
plz mark brainlest
Step-by-step explanation:
You can also write it as 45+28.
In English, a double negative is when two negative words are used in the same sentence.
A double negative in Math is when you have a scenario like this. For example, 1-(-1) is also equal to 1+1.
So 45+28 is 73.
Hope it helps!
If you make $2,000 a month, how much will you make in 5 years?
Answer:
120,000
Step-by-step explanation:
2,000•12=24,000
24,000•5=12,000
88 POINTS WILL MARK BRAINLIEST!
Answer:
m Angle PQS = 7x -6
m Angle SQR = 4x +15
m Angle PQS + m Angle SQR =11x +11 = m Angle PQR
Angle PQR +Angle PQT = 180⁰
=) 11x +11 =180⁰
=) 11x =169⁰
=) x = 169/11 = 15.3
Answer:
m Angle PQS = 7x -6
m Angle SQR = 4x +15
m Angle PQS + m Angle SQR =11x +11 = m Angle PQR
Angle PQR +Angle PQT = 180⁰
=) 11x +11 =180⁰
=) 11x =169⁰
=) x = 169/11 = 15.3
Step-by-step explanation:
Give brainliest
Please help! I'll give brainiest to the first person who is correct!!
Answer:
7. is not congruent 8. is congruent and 9. is congruent
Step-by-step explanation:
hope this helps
Nancy bought an extra-large bag of 1,288 beads to make necklaces. When she got home, she found another bag with 784 beads in it. If she uses all of the beads and uses 56 beads per necklace, how many necklaces can she make? A. 14 B. 504 C. 23 D. 37
Answer:
D. 37
Explanation:
Add the bags of beads she bought to the ones she found (1288+784)
Then divide the total by 56(2072÷56)
-k+3(4k-1)+2 simplify
Answer:
11k -1
Step-by-step explanation:
- k + 3(4k - 1) + 2
-k +12k - 3 +2
11k -1
f(d) = 4d2
d
f(d)
-2
-1
0
1
Answer:
F= -103/-4d^4+d
Step-by-step explanation:
fd=4d2dfd−2−101
Step 1: Add -4d^4f to both sides.
df+−4d4f=4d4f−103+−4d4f
−4d4f+df=−103
Step 2: Factor out variable f.
f(−4d4+d)=−103
Step 3: Divide both sides by -4d^4+d.
f(−4d4+d)
−4d4+d
=
−103
−4d4+d
f=
−103
−4d4+d
What expression is equivalent to -7x+4+3x
Answer:
[tex]- 4x + 4[/tex]
Step-by-step explanation:
[tex]-7x + 4 + 3x \\-7x + 3x + 4 \\- 4x + 4[/tex]
–8(4 + 3x) = -200
Idk what this is i need help
Answer:
[tex] \boxed{ \bold{ \huge{ \boxed{ \sf{x = 7}}}}}[/tex]
Step-by-step explanation:
[tex] \sf{ - 8(4 + 3x) = - 200}[/tex]
Distribute -8 through the parentheses
[tex] \longrightarrow{ \sf{ - 32 - 24x = - 200}}[/tex]
Move 32 to right hand side and change it's sign
[tex] \longrightarrow{ \sf{ - 24x = - 200 + 32}}[/tex]
The negative and positive integers are always subtracted but posses the sign of bigger integer
[tex] \longrightarrow{ \sf{ - 24x = - 168}}[/tex]
Divide both sides by -24
[tex] \longrightarrow{ \sf{ \frac{ - 24x}{ - 24} = \frac{ - 168}{ - 24}}} [/tex]
Calculate
[tex] \longrightarrow{ \sf{x = 7}}[/tex]
Hope I helped !
Best regards! :D
Simplify the expression
7(8g+ 9f – 6h)
Answer:
below
Step-by-step explanation:
[tex]7 ( 8g + 9f - 6h) \\7*8g + 7*9f - 7*6h \\56g + 63g - 42h[/tex]
63f + 56g - 42h
you distribute the 7 to all of the numbers
Solve for n. (4n+6)+(2n)+60
Answer:
n = 27
Step-by-step explanation:
Which is a simplified version of the following expression?
3y - 2y +6(-2y + 4)]
Answer:
3y - 2y = y6 x -2y = -12y6 x 4 = 24y -12y = -11yfinal answer
-11y + 24
Please help this is the last question on my test!! What is the approximate area of a circle with a radius of 4 feet? Use 3.14
Answer:
50 feet²
Step-by-step explanation:
r = 4 feet
Area of circle = [tex]\pi[/tex] r²
= 3.14 * 4 * 4
= 50.24 = 50 feet²
Answer:
50.24 square feet
Step-by-step explanation:
area = π[tex]r^{2}[/tex]
area = 3.14 x 4ft
area = 50.24[tex]ft^{2}[/tex]
