Answer:
Kalani will run 6.3 miles OR 6 3/10 miles.
Step-by-step explanation:
So first step that I would do is make it easier to understand by converting the fraction to a whole number. 2/3 hour= 40 minutes.
So Kalani runs 4 1/5 miles in 40 minutes.
Then, we convert 4 1/5 to 4.2. Next, I would divide 4.2 by 2 to get how long he ran in 20 minutes. 4.2/2=2.1.
The final step is to add 2.1 and 4.2 and we get 6.3.
Extra step:
But if we need to turn it back into a fraction, it would be 6 3/10
Hope this helps :)
If x +2 is a factor of
() = 4^3 + − 10
find the value of k.
Answer:
-11
Step-by-step explanation:
Solve the quadratic equation.
3x^2=81
Answer:
3x^2=81
x²=81/3
x=√27=3√3
Step-by-step explanation:
3x²=81
With this we have to square root both sides to find the value of x.
[tex] \sqrt{3 {x}^{2} } = \sqrt{81} [/tex]
So the x will cancel the square root sign so;
[tex]3x = \sqrt{81} [/tex]
And now we have to find the square root of 81 which is 9, because when we multiply 9 by 9 we are going to be get 81 so the square of 9 is 81 and the square root of 81 is 9
So;
[tex]3x = 9[/tex]
And then we divide both sides by 3 to find the value of x ;
[tex] \frac{3x}{3} = \frac{9}{3} [/tex]
[tex]x = \frac{9}{3} [/tex]
[tex]x = 3[/tex]
A, B, C, D are points on a line, with D the midpoint of segment BC. The
lengths of segment AB is 10; segment AC is 2; and segment BC is 12. What
is the length of segment AD?
Answer:
Also BC = 12
B......6......D......6......C
Now, AC = 2.
A can be either left of C or right of C
If A is left of C , AB = 12-2 = 10 (Correct)
If A is right of C AB = 12 +2 = 14 (Incorrect)
So the points placing is as below
B......6......D....4....A..2..C
Length of segment AD = 4
Tasha lists all the multiple of 3 from 3 to99. Tony lists all the multiples of 5 from 5 to100. What is the first number that is on both lists? The second.
Answer:
Multiples of 3 = 3, 9Multiples of 5 = 5, 10Step-by-step explanation:
In a list of 3 to 99, the first multiple of 3 will be none other than 3 itself because when multiplied by 1, you get three.
The second number will be: 3 * 2 = 6
In a list from 5 to 100, the first multiple will be 5 with 5 being a multiple of itself when multiplied by 1.
Second number = 5 * 2 = 10
Le cross du college s'effectue sur le parcours schématisé
ci-contre en partant du point A et en suivant le sens des
leonas. Les eleves de quatrieme doivent parcourir 1.5 km.
On doit-on placer la ligne d'arrivée sur le circuit?
( measure : from A to B is 69 m
from B to C is 72m
from D to A is 36m )
Answer is in the photo. Click on the photo.
Add.
(79 + 1) + (59 + 2)
Help please not too sure about this one?
Answer:
y=-5x+0
Step-by-step explanation:
If it passes through the origin that means the Y-Intercept is 0
A student on the track team runs 45 minutes each day as a part of her training. She begins her workout by running at a constant rate of 8 miles per hour for minutes, then slows to a constant rate of 7.5 miles per hour for minutes.
Which equation describes the relationship between the distance she runs in miles, , and her running speed, in miles per hour?
A:
B:
C:
D:
Answer:
D
Step-by-step explanation:
The basic equation to solve this would be D = RT, which is
D is Distance
R is Rate (speed)
T is time
To find total distance D, we can find individual distances for two legs of the whole.
First Leg:
R = 8
T = a
D = 8a
This is the graph of f(x). What is the value of (2)?
101Y
х
-5
5
5
O A. 16
B. 2.
O C. 8
O D. 4
Answer:
Step-by-step explanation:
f(2) = 4
The coordinates of one endpoint of a line segment are (4, −12). The length of the segment is 5 units. Determine four coordinate pairs that could serve as the other endpoint of the given line segment. Enter all four coordinate pairs in the box using a comma to separate each pair. For example: (0, 0), (1, 1), (2, 2), (3, 3)
Answer:
Four coordinate pairs that could serve as the other endpoint of the given line segment are given by: (9,-12), (-1,-12), (4,-7), (4,-17).
Step-by-step explanation:
One endpoint of (4,-12), length of 5 units.
Four possible pairs:
Add 5 to x, keep y: (4+5,-12) = (9,-12).
Subtract 5 from x, keep y: (4-5,-12) = (-1,-12).
Keep x, add 5 to y: (4,-12+5) = (4,-7)
Keep x, subtract 5 from y: (4,-12-5) = (4,-17)
Four coordinate pairs that could serve as the other endpoint of the given line segment are given by: (9,-12), (-1,-12), (4,-7), (4,-17).
URGENT. The cover of a science textbook has a width of (x-2) and a length of (x^2 -5x+4) inches. Find the area of the cover of the science textbook.
A cell phone is originally priced at $120.The online retailer gives a discount and the cell phone is now priced at $90.enter the percentage discount for the cost of the cell phone.
Answer:
25% off
Step-by-step explanation:
First, find 90/120, which is 0.75. Now, since the phone is not 75% off, you just find 100-75, which gives you 25%.
find area of triangle
Someone help me with this pls
Ron made 3 pitchers of lemonade to sell at a lemonade stand. The cost of making the lemonade is 50 cents per pitcher of lemonade.
He sold each cup of lemonade for 15 cents, and he sold a total of 36 cups of lemonade.
How much money did Ron make selling lemonade after paying out the cost of making the lemonade?
$ ___
Answer:
$3.90
The cost of making them all is 1.50 subtracted from the profit he made
PLEASE HELP ME ASAP ?!?!?
Find the missing side lengths.
Leave your answers as radicals in simplest form.
Answer:
m = 5 n = [tex]\frac{5\sqrt{3} }{2}[/tex]
Step-by-step explanation:
5/2x2=5
5/3xsqrt3=5sqrt3/2
In the arithmetic sequence {13, 6,-1,-8,...}, what is the common difference?
Enter your answer as a number, like this: 42
════════ ∘◦❁◦∘ ════════
Answer = -7════════════════════
Knowna = 13
U2 = 6
U3 = -1
U4 = -8
════════════════════
Questiond = ..?
════════════════════
Way to do#since it gives a lot of number, i will just pick one of the nth term, ill choose U2
Un = a + (n-1)d
U2 = 13 + (2-1)d
6 = 13 + d
6 - 13 = d
d = -7
════════════════════
Note• The formula of arithmetic sequence
Un = a + (n-1)dn = nth term
a = first term
d = common difference
════════════════════
What is the remainder if f(x) = x^4- 5x2 - 6x - 10 is divided by x - 3?
A. 8
B. 44
C. -46
D. 224
Answer:
A) 8
Step-by-step explanation:
The remainder when f(x) = x⁴ + 0x³ - 5x² - 6x - 10 is divided by x - 3 is 18.
What is factor theorem?Factor theorem states that if x - a is a factor of f(x) then f(a) = 0.If f(a) ≠ 0 then x - a is not a factor of f(x).
To determine the remainder of f(x) = x⁴ + 0x³ - 5x² - 6x - 10 when divided by x - 3 which is x - 3 = 0 or x = 3 we have to replace the value of x in f(x).
∴ f(x) = x⁴ + 0x³ - 5x² - 6x - 10.
f(3) = (3)⁴ + 0(3)³ - 5(3)² - 6(3) - 10.
f(3) = 81 + 0 - 45 - 18.
f(3) = 18.
So, the remainder is 18.
learn more about factor theorem here :
https://brainly.com/question/24545336
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Which number is NOT in the solution set of the inequality x>-15?
A) 10)
B) -5
C) -10
D) -20
Answer:
d
Step-by-step explanation:
if x has to be greater than -15 and -20 = x than its not true because -20 isn't greater than -15
Answer:
yes its d because -15 is not greater than -20
I don’t now if u can see it very well but could anyone help me with this
Answer:
A and c
Step-by-step explanation:
If im correct A and C is the answer because A and C represent the vertical angles :)
PLEASE HELP!!!
Simplify:
1) -sqrt(-9y^2) if y < 0
2) 3sqrt(c^2) if c is greater then or equal to 0
3) -5sqrt(4x^2) if x is greater than or equal to 0
4) -5sqrt(y^2) if y > 0
5) 0.5sqrt(16a^2) if a < 0
All the solutions of the expressions are,
1) 3yi
2) 3c
3) - 10x
4) - 5y
5) - 2a
What is an expression?Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.
Now, We can solve as;
1) - √- 9y² , if y < 0
⇒ - √ - 9y²
⇒ - √- 1 × 3 × 3 × - y × - y
⇒ 3yi
2) 3√c², if c ≥ 0
⇒ 3 √c²
⇒ 3√c × c
⇒ 3c
3) - 5√4x², if x ≥ 0
⇒ - 5 √4x²
⇒ - 5 √(2x)²
⇒ - 5 × 2x
⇒ - 10x
4) - 5√y², if y > 0
⇒ - 5 √y²
⇒ - 5y
5) 0.5 √16a², if a < 0
⇒ 0.5 √(4a)²
⇒ 0.5 × -4a
⇒ - 2a
Learn more about the mathematical expression visit:
brainly.com/question/1859113
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Z varies jointly with x, and y, and z=7 when x= 2, y= 2
pleasee I need an answer now!!
Answer:
(7/4)(2)(2)=7
Step-by-step explanation:
Answer:
z = 1.75xy
Step-by-step explanation:
Given z varies jointly as x and y then the equation relating them is
z = kxy ← k is the constant of variation
To find k use the condition z = 7 when x = 2 and y = 2, then
7 = k × 2 × 2 = 4k ( divide both sides by 4 )
1.75 = k
z = 1.75xy ← equation of variation
Plz plz plz I need help
a) find area
a = l • w
a = 17.8 • 10.6
a = 188.68 m²
//
b) find the area of the vegetable garden and then multiply by the cost
a = l • w
a = 49 • 15.2
a = 744.8 m²
total cost = 744.8 • 91
total cost = 67776.8
//
c) find perimeter
p = 2(l) + 2(w)
p = 2(18.7) + 2(12.6)
p = 62.6 m
//
d) find area then divide by 1.25
a = l • w
a = 20 • 15.7
a = 314 m²
314/1.25 = 251.2
251.2 banana trees
//
Just double check to make sure my calculations are correct.
35 of the apartments have a balcony and 55 of them don't. An apartment is randomly selected as part of a survey. What is the probability it has a balcony?
Answer:
39%
Step-by-step explanation:
It is given that 35 apartments have balconies in them.
While 55 apartments do not have balconies in them.
Total number of balconies is the sum of the apartments. i.e. 35 + 55
= 90 apartments
Therefore for the survey when an apartment is randomly selected, the percentage of the probability of the apartment to have a balcony can be found out by dividing 35 by 90 and then multiply by 100.
i.e.
[tex]$=\frac{35}{90}$[/tex]
= 0.38888888
Multiplying by 100, we get
= 0.388888 x 100
= 38.8888 %
= 39 %
answer this algebra question x/12 - 5 = 7
Answer:
x=144
Step-by-step explanation:
x/12-5=7
x-60=84
x=84+60
x=144
. Determina el número aproximado
de pasos que da una persona al recorrer
1.5 kilómetros, si la longitud promedio
por paso es de 50 centímetros.
Answer:
lo siento, no lo sé
Estoy respondiendo por puntos
Step-by-step explanation:
lo siento por hacerte perder el tiempo
mother cute the cloth that measures 23.349 cm. What is the place value of 4 in this number
Answer:
The place value is Hundrenths.
Step-by-step explanation:
After teh decmal it goes . Tenths,Hundreths,thosands.. and so o n. The 4 is in the Hundreths place.
what is the distributive property of 24+28
Answer:
4(6+7)
Explanation:
24+28
(4×6)+(4×7)
4(6+7)
I need help solving for X and Y
Answer:
y = 4 ; x = 4√2
Step-by-step explanation:
This is a 45° 45° 90° triangle meaning the legs will equal each other and the hypotenuse will be equal to the length of the legs times √2.
Find the unknown side length