When n is equal to 4, the expression 6(n+8) - 5n evaluates to 52. This means that if we replace the variable n with 4, the expression simplifies to the constant value of 52.
To evaluate the expression 6(n+8) - 5n when n = 4, we substitute n with 4 and simplify step by step:
First, we substitute n with 4 in the expression:
6(4+8) - 5(4)
Next, we simplify the parentheses:
6(12) - 5(4)
Multiplying within the parentheses:
72 - 20
Finally, we subtract the two values:
52
As a result, the formula 6(n+8) - 5n evaluates to 52 when n is equal to 4. This indicates that the expression becomes simpler if we substitute the variable n with the number 4, which is 52.
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A superhero and his sidekick simultaneously leave the city and fly toward a secret hideout that is 1800 km away. The superhero's speed is 100 km/h slower than the sidekick's speed, and so he arrives at the hideout 36 minutes after his sidekick. Find the speed of each
Answer:
Speed of sidekick : 600
Speed of superhero : 500
Step-by-step explanation:
x = sidekick speed
speed of hero = x-100
Time of hero = -36
1800/(x-100) = (1800/x) + 0.6
That equations solves to x = 600 and x = 500 or -500
The given difference in speed and the arrival time, as well as the
distance traveled, gives the speeds as 500 and 600 km/hr.
Response:
The speed of the superhero is 500 km/hr.The speed of the sidekick is 600 km/hr.Which method is used to calculate the speed of the superhero, and the sidekick?The given parameters are;
Superhero's speed = 1800 km
Speed of the superhero = Speed of the sidekick - 100 km/h
The time the superhero arrives at the hideout = 36 minutes after the sidekick = 0.6 hours
Required:
The speed of the superhero and the sidekick
Solution:
Let v represent the speed of the superhero, we have;
v × (t + 0.6) = (v + 100) × t
v·t + 0.6·v = v·t + 100·t = 1800
0.6·v = 100·t
[tex]t = \dfrac{0.6}{100} \cdot v[/tex]
Therefore;
0.006·v² + 0.6·v - 1800 = 0
Which gives;
v² + 100·v - 300,000 = 0
(v - 500)·(v + 600) = 0
v = 500, or v = -600
The speed of the superhero is 500 km/hThe speed of the sidekick is 500 km/h + 100 km/h = 600 km/hLearn more about speed and velocity here:
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“Deme cambio de un dolar, por favor” dijo el cliente llamado Bob.
– “Lo siento” dijo la señorita Jones, la cajera, después de buscar cuidadosamente en la caja, “pero no puedo hacerlo con las monedas que tengo”.
– “¿Puede entonces cambiarme medio dolar?”. La señorita Jones negó con la cabeza. En realidad, dijo, “¡ni siquiera tengo para cambiar ni veinticinco, ni diez, ni cinco centavos!”
– “¿No tiene ninguna moneda?” preguntó Bob.
– “Oh, sí” dijo la señorita Jones, “tengo $1.15 en monedas”.
¿Cuáles eran exactamente las monedas que había en la caja registradora? Razona la respuesta.
Answer:
Give me change for a dollar, please" said the customer named Bob. - "I'm sorry," said Miss Jones, the cashier, after carefully searching the box, "but I can't do it with the coins I have." - "Can you then change half a dollar?" Miss Jones shook her head. Actually, he said, "I don't even have a quarter, a dime, or a nickel to change!" - "You don't have any coins?" asked Bob. - "Oh yes" said Miss Jones, "I have $ 1.15 in coins." What exactly were the coins in the cash register? Reason for the answer.
Step-by-step explanation:
Answer:
medio dólar, cuarto de cuatro dimes || half dollar, quarter four dimes
Square Areas
The dots on the grid are all one unit apart.
1. The square shown here can be described
as a 3/5 square. Find its area.
.
Show all your reasoning
Answer:
The area will be "34 unit²".
Step-by-step explanation:
The diagram is missing throughout the given question. Below is the figure attached.
According to the question,
The side of squares will be:
= [tex]\sqrt{(5)^2+(3)^2}[/tex]
= [tex]\sqrt{25+9}[/tex]
= [tex]\sqrt{34} \ units[/tex]
Hence,
The area of square will be:
= [tex](side)^2[/tex]
= [tex](\sqrt{34} )^2[/tex]
= [tex]34 \ unit^2[/tex]
Help please I will give you the brainliest
Answer:
well option D will be your answer
Step-by-step explanation:
hope it helps you
have a great day
Sorry if the pictures a little weird looking, I was in a rush .
Marissa went on a trip and drove her car throughout the day. The graph below shows Marissa's distance from the starting point of her trip for different segments of time
What’s the answer to this please?
Work out the value of x.
Answer:
The value of x could be anything, so I don't know what you mean until you have some sort of equation or graph - or anything at that.
Step-by-step explanation:
For the graph shown, the slope is changed to 1/5, but the y-intercept remains the same. What is the resulting equation for the new graph?
A)y = x + 15
B)y = x - 15
C)y = 15x + 1
D)y = 15x - 1
Answer: C. y=1/5x+1
Step-by-step explanation:
What is the area of this figure?
Enter your answer in the box
10. Multiply the following numbers using scientific notation. show the steps. (See Ex. 5)
(2 x 103)(3 x 104).
11. Divide the following numbers using scientific notation. Show the steps as they are done in the lesson. (See Ex. 6)
-42 x 102
14 x 103
Answer:
10) 6 × 10⁷
11) -3 × 10⁻¹
Step-by-step explanation:
Assuming that (2 x 103)(3 x 104) =
(2 × 10³)(3 × 10⁴) =
(2 × 10³) × (3 × 10⁴)
And the division of
(-42 x 102) and (14 x 103) =
(-4.2 × 10²) ÷ (1.4 × 10³)
__________________
It is hard to know without an image, assumptions can vary.
please help me...............
Vertical angles.
As you could see, both angles are vertical towards eachother, meaning they're vertical!
$12.00 + $ 10.00 =
what is it
Answer:
22 bucks duh
Step-by-step explanation:
Michaela and Dema each multiplied 1/3 x 4/3. Michaela got 4/9 and Dema got 5/6. Which student found the correct answer? EXPLAIN
Answer: Michaela's answer
Step-by-step explanation:
Dema added the numbers together
a fire truck has a ladder that can extend to 120 ft in length. The ladder can be safely raised to the maximum angle of 75 with the horizontal. Disregarding the height of the fire truck itself which is the closest to the maximum height the ladder can safely reach
Answer:
the ladder is 60 feet and the angle is 75 degrees guess and check sin75=x/60
0.9659258263=x/60
57.9555=x
57.96=x
so B
Store A sells a box of 8 pencils for $0.89. Store B sells a box of 12 pencils for $1.25. Which store sells the better deal? Tell the unit rate for each store (rounding to nearest cent)
Answer:
Should be store B :) The unit rate for store A (rounded) is 0.11 and the rounded unit rate for store B is 0.10
Step-by-step explanation:
Answer:
Store B has the better deal
Unit rate:
Store A = $0.11
Store B = $0.10
Step-by-step explanation:
Store A :
8pencils = $0.89
1 pencil = $0.89/8 = $0.111
Store B:
12pencils = $1.25
1 pencil = $1.25/12 = $0.104
Store B sells 1 pencil at $0.104 and store A at $0.111
Therefore Store B sells the better deal.
Can someone please help?
Answer:
JUST USE THE CALCULATOR DUHHH!!!
help neither me or my friend know how to do this
Answer:
X [tex]\leq[/tex] -5
Step-by-step explanation:
Answer:
x ≥ -6
Step-by-step explanation:
Here you go, this might help you
https://courses.lumenlearning.com/collegealgebracoreq/chapter/temp-4-review/
convert 4 miles into cm. show your work
Answer:
643737.6
Step-by-step explanation:
1 inch is 2.54 centimeters. 2.54 centimeters is 1 inch. 12x2.54 =30.48. 30.48 is equal to one foot because 12 inches are in 1 foot and one inch is 2.54 centimeters. 1 yard is 3 feet so 30.48x3=91.44. 1 yard is equal to 91.44 centimeters. 1 miles is 1760 yards so 91.44x1760= 160934.4. 1 mile is equal to 160934.4 centimeters. Since 1 mile is equal to 160934.4 centimeters, you have to multiply 160934.4 by 4 to get 4 miles. 160934.4x4=643737.6 and this is your final answer. Therefore, 4 miles is equal to 643737.6 centimeters.
1. Which of the following moving at the same speed, wouldbe hardest to stop?*
(12 points)
car
bus
Frisbee
stroller
Answer:
Bus
Step-by-step explanation:
If the bus has the most weight than the force it would edmit would be greater than any other
Let A = the sum of all 2-digit positive perfect squares. Let B= the sum of all 2-digit positive perfect cubes. Find A – B.
Answer:
180
Step-by-step explanation:
A = 16 + 25 + 36 + 49 + 64 + 81 = 271
B = 27 + 64 = 91
A - B = 271 - 91 = 180
Madison is saving nickels. She saves 1 nickel the first day, 2 nickels the second day, 3 nickels the third day, and so on for 15 days. At this rate, how much money will she save over the 15 day period
Answer:
$6
Step-by-step explanation:
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15
there's 10
1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 12, 13, 14, 15
1 + 9 = 10
10 + 10 = 20
2, 3, 4, 5, 6, 7, 8, 11, 12, 13, 14, 15
2 + 8 = 10
20 + 10 = 30
3, 4, 5, 6, 7, 11, 12, 13, 14, 15
3 + 7 = 10
30 + 10 = 40
4, 5, 6, 11, 12, 13, 14, 15
4 + 6 = 10
40 + 10 = 50
5, 11, 12, 13, 14, 15
5 + 15 = 20
50 + 20 = 70
11, 12, 13, 14
11 + 14 = 25
70 + 25 = 95
12, 13
12 + 13 = 25
95 + 25 = 120
she would 120 nickels which is
120 x 5 = 600 cents or $6
Reagan grew 30 plants with 6 seed packets. With 7 seed packets, how many total plants can
Reagan have in her backyard? Assume the relationship is directly proportional.
plants
Submit
Answer:
35
Step-by-step explanation:
6 x 5 = 30
We can assume each seed packet has 5 seeds
6 x 7 = 35
Write the equation of the line graphed below.
Answer:
x=1
Step-by-step explanation:
A seed company planted a floral mosaic of a national flag. The perimeter of the flag is 2,340 ft Determine the flag's width and length if the length is 390 ft greater than the width.
Answer:
Step-by-step explanation:
L=W+390, W=L-390
P=2(W+L), P=2340
2(L-390+L)=2340
2L-390=1170
2L=1560
L=780ft
I WILL GIVE BRAINLIEST!!!
NO SENDING ME LINKS!!!
Help with geometry !!!!!!!!!!!
Answer
x = 18
You're welcome
Answer:
The answer would be x=18
pls help! will mark brainliest if correct
I dont know what is it sorry but I try the love yaaysya
A farmer has 140 bushels of beans for sale at a farmer's market. He sells an average of 15 bushels each day. After 6 days, what is the change in the total number of bushels the farmer has for sale at the farmer's market?
Write a signed number representing the change in the total number of bushels the farmer has for sale.
Answer:
50
15 * 6 = 90
140 - 90
Find f(-5) if f(n) = n^3 + 3n^2
Work out the size of angle x.
38°
х
101°
The size of the angle 'x' is 117°
The external angle of a triangle:An external angle of a triangle is an angle formed by extending one side of the triangle and intersecting with the extension of another side.
In a triangle, the measure of an external angle is equal to the sum of the measures of the two opposite interior angles.
Here we have a triangle
Let the ABC be the triangle as given in the picture
=> ∠A = 38°
From the baseline BC
=> Measure of B = 180° - 101° = 79°
As we know
In a triangle, the measure of an external angle is equal to the sum of the two opposite interior angles
=> x = ∠A + ∠C
=> x = 38° + 79°
=> x = 117°
Therefore,
The size of the angle 'x' is 117°
Therefore,
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