Answer:
Step-by-step explanation:
2x + 4 = 6x + 2
Bringing like terms on one side
4 - 2 = 6x - 4x
2 = 2x
2/2 = x
1 = x
Sheila is biking at a constant speed. She travels 54 meters in 9 seconds.
How long in seconds would it take Sheila to travel 90 meters at this speed?
Answer:
15
Step-by-step explanation:
54 divided by 9 = 6 90 divided by 6 = 15
Factorise (x+y)^3- (x^3+y^3) plzzz answer
Answer:
[tex] \huge \boxed{ \boxed{ \tt 2xy(x + y)}}[/tex]
Step-by-step explanation:
to understand thisyou need to know about:factoringPEMDAStips and formulas:(a+b)³=a³+3a²b+3ab²+b³a³+b³=(a+b)(a²-ab+b²)let's solve:[tex] \sf \: use \: 2nd \: formula \: to \: simplify : \\ \sf(x + y {)}^{3} - (x + y)( {x}^{2} - xy + {y}^{2} )[/tex][tex] \sf factor \: out \: (x + y) : \\ (x + y )\{(x + y)^{2} - ( {x}^{2} - xy + {y}^{2} \}[/tex][tex] \sf simplify : \\ (x + y {)} \{ {x}^{2} + 2xy + {y}^{2} - {x}^{2} + xy - {y}^{2} \}[/tex][tex] \sf collect \: and \: combine \: like \: terms : \\ (x + y) \{2xy \}[/tex][tex] \sf \: rewrite : \\ 2xy(x + y)[/tex]and
we are done
20. Isosceles trapezoid LMNO has vertices L(-4,-3), M(-4,0), N(-2, 1),and O(-2,-4). If the figure is
dilated with the center at the origin and with a scale factor of 1.5, what is the length of L'M' of the
dilated isosceles trapezoid?
Answer:
L’M’ = 4.5 units
Step-by-step explanation:
We start by getting the dilated coordinates
we specifically work with the points LM
The dilated points can be obtained by multiplying the individual coordinates by 1.5
for L (1.5 * -4 and 1.5 * -3) = L’ (-6, -4.5)
M (-4,0) and ; (1.5 * -4 and 0 * 1.5) = M’ (-6,0)
Now, we can use the distance formula
D = √(y2-y1)^2 + (x2-x1)^2
D = √(0+ 4.5)^2 + (-6+6)^2
D = √(4.5)^2
D = 4.5 units
pls help! what is the radius of this circle?
Answer:
4
Step-by-step explanation:
because raidius is any given line from the center of the circle to the circumference
Suppose a local park is rectangular in shape and has a length of 210 yards and a width of 105 yards. What is the length of the diagonal of the park? Round your answer to the nearest hundredth of a yard.
Answer:
234.784 ~ 235
Step-by-step explanation:
One side = 210
other side = 105
a2+b2 = c2
210 ^2 + 105 ^2 = c2
55125 = c ^2
c = [tex]\sqrt{55125}[/tex] = 234.784 ~ 235
hope its right!!!
please help :) will mark brainliest
Answer:
I cant see your problome I dont know why but what is it
Step-by-step explanation:
A gas station started the weekend selling gas for $3.79 per gallon. Towards the end of the weekend, gas was $3.49 per gallon. What is the percent decrease in gas price per gallon? Round percentage to the tenths place.
Answer: 7.9%
Step-by-step explanation:
trust me
Math homework, a bit tired out and can't really do an equation without getting sidetracked.
Answer:
C
Step-by-step explanation:
Using Pemdas:
3 (1 + 4) / 3 + 4^2
3 (5) / 3 + 4^2
3 (5) / 3 + 16
15 / 3 + 16
Answer:
A
Step-by-step explanation:
First you have to simplify the equation, you should use PEMDAS. This means you first have to simplify the parenthesis. simplify it, multiply 3 by 1 and 4. This makes the equation 3+12/3+4^2. Then following PEMDAS, you simplify the exponent. 4^2 is the same as 4x4 so 4^2 is 16. 3+12/3+16, then you can simplify either side first. 3+12/18, then you simplify the only part left. 15/18. The GCM of this fraction is 3 so you divide both sides by 3. 15/3/18/3. Simplify this to get 5/6.
When you simplify equation A, you get 15/3/6. First simplify 15/3 to get 5. This equation answer is 5/6 which is equal to 5/6 so this is the correct answer.
When you simplify equation B, you get 15/3/8. Simplify 15/3 again and get 5. This equation answer is 5/8 which is not equal to 5/6 so this is not the correct answer.
When you simplify equation C, you get 15/3/16. Simplify 15/3 first and get 5. 5/16 is not equal to 5/6 so this is not the correct answer.
Therefore, Equation A is the correct answer.
8. Calculate the final price including tax for a watch that costs $139.99 that is on sale for 20% off.
a) $158.19
b) $111.99
c) $139.99
d) $126.55
Answer:
should be B
Step-by-step explanation:
however tax rate is different in different states sooo
Each square below represents one whole. What precent is represented by the shaded area!!! PLEASE HELP!!!
Answer:
75%
Step-by-step explanation:
To break it down, there are four congruent triangles. In the first square, both are shaded completely, which is 50%. In the second square only one is shaded, which would be 25%. 50 + 25 = 75% or 3/4
Answer:
150%
Step-by-step explanation:
There is one full square = 100%
There is a half-filled square = 50%
add those percentages and you get 150%
I didn’t think it’d be that simple, sorry
Hi guys
please help here
Answer:
It should be in between 8 or 9
Step-by-step explanation:
There are 7 numbers, so the median is the middle one:
=8
The product of a number and 9 falls short of 78 by 6, what is the number? Show working.
Answer:
8
Step-by-step explanation:
78 - 6 = 72 (Since the number falls short by six)
72 ÷ 9 = 8 (Number times 9 that equals 72)
5. A cell phone company charges $50 connection fee plus $20 per line. Jake must spend under $140 on his
family's cell phone bill. How many cell phones can his family have? Write the linear inequality that models this
situation then solve the problem. Please show your math work
I WILL GIVE BRAINLIEST!!
Answer:
4 lines
Step-by-step explanation:
50+20*lines < 140
20*lines < 90
lines < 4.5
please help ASAP! will mark brainliest if correct! Please please please!!
farmer johnson is planting a garden in the park. he has a square garden bed that is 21 feet long. He divides the bed into squares for vegetables. The squares are 3 by 3 feet long.How many different vegetable squares could he have?
Answer:
3
Step-by-step explanation:
3x3=9
21/9= 3
Help me please thank you
Answer:
$13.70
Step-by-step explanation:
$59.60 - $4.80 = $54.80
$54.80 / 4 = $13.70
Can someone smart at math help me cause a girl tried and can’t do this vodo thing my teacher gives me
1. Last month, John's dog ate 45 cans of dog food in
30 days. How many cans should John buy to feed his
dog for the next 6 days?
Please help me !!!
Answer:
9 cans
Step-by-step explanation:
45/30=1.5
1.5*6=9
Answer:
9 Cans of dog food
Step-by-step explanation:
You have to divide 45 the amount of cans within the 30 days. 45/30=1.5.And you have to multiply this by 6 days. 1.5×6=9
tan(60)x 20
please hurry!!
Answer:
6.4008
Step-by-step explanation:
Perry used the formula V (t) = 24,450(1-0.13)
to find the value of his car t years after he purchased it.
What does 0.13 represent?
A the price of the new car
B the time of year the car was purchased
the value of the car after t years
a 13% decrease in value each year
Answer:
D) a 13% decrease in value each year
Step-by-step explanation:
Perry used the formula V (t) = 24,450(1-0.13)^t to find the value of his car t years after he purchased it.
What does 0.13 represent?
The expression given above represents and expression of exponential decrease.
This is represented by the formula
y = a(1 - r)^t
Where
y = Value after time t
a = Initial value
r = Rate of decrease
t = Time
Comparing both expressions
y = a(1 - r)^t = V (t) = 24,450(1-0.13)^t
We can see that:
r = 0.13
This is the rate of decrease.
Converting to Percentage = 0.13 × 100
= 13%
Option D is the correct option.
pls help me with this multiple choice !
Answer:
A
Step-by-step explanation:
since the angles are 45,45 the triangle is an Equilateral triangle
V=12
[tex] {u}^{2} = {12}^{2} + {12}^{2} \\ {u}^{2} = 288 \\ u = \sqrt{288} = 12 \sqrt{2} [/tex]
Divide 7560 in the ratio 4/5
Answer:
times number to the fraction.
Step-by-step explanation:
first part =
[tex]7560 \times \frac{4}{4 + 5} = 3360[/tex]
second part =
[tex]7560 \times \frac{5}{4 + 5} = 4200[/tex]
People attending a basketball game either supported the home team or the visiting team. If 549 of the people attending supported the home team and 351 supported the visiting team, what percentage supported the home team?
People who supported the home team= 549
People who supported the attending team= 351
Total no. of audience= 549+ 351
= 900
Percentage of home team=
(549/900× 100)
= 61%
Hope it helps u;)❤Dalton is playing a game in which the object is to obtain a 0 by adding the points scored during each round
Round 1 Round 2 Round 3 Round 4 Round 5
27
-18
3
Based on the points he scored during the first 4 rounds, what score does Dalton need on the 5th round?
0 -52
0-8
08
O 52
What is the value of x in the diagram?
Answer:
x+55=2x-15 [being corresponding angle
55-15=2x-x
40=x
Answer:
(x+55)°=(2x-15)°
x-2x=-15-55
-x=-75
x=75
..............
SOMEONE HELP PLEASE
Answer:
We cant see what you are talking about we cant see the equation
Step-by-step explanation:
Step-by-step explanation:
106+94+135+5 = 340
540-340=200
200/2= 100
X = 100
Please help me if you can I will choose Brainliest!!
Answer:
Question 1: g = 6
Question 2: v = 84
Question 3: y = 60
Question 4: w = 496
Question 5: Kyle had $400 to begin with.
Step-by-step explanation:
Question 1 explanation: 12g = 72 ⇒ g = [tex]\frac{72}{12}[/tex] = 6
Question 2 explanation: [tex]\frac{v}{4}[/tex] = 21 ⇒ v = 21 * 4 = 84
Question 3 explanation: [tex]\frac{1}{6}[/tex] y = 10 ⇒ 6 * [tex]\frac{1}{6}[/tex] y = 10 * 6 ⇒ y = 60
Question 4 explanation: w + 376 = 872 ⇒ w = 872 - 376 = 496
Question 5 explanation: K - 85 = 315 ⇒ K = 315 + 85 = 400, so Kyle had $400 originally in his account.
Which equation can be used to solve for x in the following diagram?
7xº
11x°
Answer:
7x° + 11x° = 90°
(Required equation)
Step-by-step explanation:
7x° + 11x° = 90°
(complementary angles)
18x° = 90°
18x = 90
x = 90/18
x = 5
please help its due at 11:59 and i´m struggling!!!!
Answer:
hold on might have to ask my teacher
Step-by-step explanation:
1. How many groups of days are in 1 week?
Write a division equation to represent the question.
Type your equations in the box below.
Answer:
(14 groups)
14 divided by 7 = 2
Therefore 14 is your answer
Step-by-step explanation:
lol that's all I got
