Answer:
The function that relates the distance traveled d to the time t is
f(t) = 110t, where d = f(t)
Step-by-step explanation:
From the question, we were told that the train is At a constant speed, the train travels 330 kilometers in 3 hours
We were told to write function that relates the distance traveled d to the time t, we can do this by writing a linear equation with those functions
Since we are told that the train travels 330 kilometers in 3 hours, then we can say the train travel (330/3) kilometers in 1 hour which means it travel 110 kilometers in 1 hour
Then d= 110t---------------eqn(1)
If if t = 0, then d = 0, as well since at t=0 the train is at the station
At t = 1 then d = 110.
From equation (1) d can be replaced by f(t) then we have
f(t) = 110t----------------eqn(2)
Now we replace d by f (t), because d = f t):
f(t) = 120t
Therefore, The function that relates the distance traveled d to the time is f(t) = 120t
Please help im dumb iufrjvg
Answer:
or lazy haha
4. 3 [tex]\frac{1}{5}[/tex]
5. 17.5
6. -[tex]\frac{2}{5}[/tex]
7. 50
Hope I Helped
The drama club needs to sell 50 tickets to the school play. So far, they have sold 9 tickets. What percent of their target have they sold? Enter your answer in the box .
PLS HELP
Answer:
18%
Step-by-step explanation:
9/50 = 0.18 and 0.18 is 18% in percentage form
Answer:
18%
Step-by-step explanation:
FIrst set up a fraction so that later we can convert that into a percentage:
9/50
9 represents the number of tickets sold and the 50 represents the total
We divide numerator by denominator.
9/50 =
0.18
We multiply by 100 to get our percentage and we get 18%
8. It takes Juan 40 minutes to walk 2.5 miles to the park. At this rate, how many minutes
should it take him to walk 4 miles? HELPP PLZ!!!
Answer:
64 minutes
Step-by-step explanation:
40 divided by 2.5 = 16
4 times 16 = 64 minutes
It will take 64 minutes to walk 4 miles.
What is a Ratio?A ratio indicates the number of times one number contains another.
Given that, Juan walks 2.5 miles in 40 minutes.
2.5 miles = 40 minutes
1 mile = 40/2.5 minutes
4 miles= (40/2.5)4 minutes
4 miles = 64 minutes.
Hence, It will take 64 minutes to walk 4 miles.
To learn more about ratios, click here:
https://brainly.com/question/13419413
#SPJ2
Can I please get some real help on this question?
An item on sale costs 65% of the original price. The original price was $15. Find the sale price.
Answer:
$9.75
Step-by-step explanation:
65% of 15 is 9.75
Hope this helps∞<3
Let me know if it right or wrong.
Answer:
$9.75
Step-by-step explanation:
To find the sale price, you multiply the sale percent by the original price. For this problem, it would be 0.65 * 15, which equals $9.75.
(If you didn't already know, you get the decimal version of a percent by moving the decimal at the end two places to the left.)
Write the linear equation in slope-intercept form.
-6x + y = 19
which is the area of a circle with a diameter of 7 units? (use 3.14 for pi)
Answer:
The area of circle = πR ^2
And diameter = 7 units
By interchanging d in R =d/2 = R =7/2 = 3.5
Step-by-step explanation:
πR ^2 =3.14 x (3.5)^2 =3.14 x 3.5 x 3.5 =38.465 (unit)^2 AnswerHope it's help ^_^
ayeeeeee who watched "the voice" tonight
ayeeeeeeeee not meeee
not me butt ayyyy whos failing school :)
Find the diagonal of the box using the Pythagorean Theorem.
Answer:
26 cm
Step-by-step explanation:
Given:
Length = 24 cm
Width = 8 cm
Height = 6 cm
Required:
Diagonal of the box
SOLUTION:
Using the pythagorean theorem, [tex] a^2 + b^2 + c^2 = d^2 [/tex], where,
a, b and c are the dimensions of the box, and d is the length of the diagonal.
Plug in the value into the formula
[tex] 24^2 + 8^2 + 6^2 = d^2 [/tex]
[tex] 676 = d^2 [/tex]
[tex] \sqrt{676} = \sqrt{d^2} [/tex]
[tex] 26 = d [/tex]
Length of diagonal of the box = 26 cm
Which expression is equal to [(x4)2x3y5]??
x 26 y 10
x 22 y 10
x 13 y?
x 11 y?
(the 2,3, & 5 are all smaller)
edge 2020
Step-by-step explanation:
Answer:
50
Step-by-step explanation:
i did it
3(x + 7) = 2(4x + 23)
X=
60 over 100 as a decimal
Answer:
0.6
Explanation: 60 over 100 would be 60/100, so when converting this into a decimal, the 60 would be in the hundreths place. Therefore, the decimal would be 0.6.
Hope this Helps!
True or false please help due in a couple of minutes!!!!
Answer:
false
the shape is different
Giving brainless! Don’t answer if you don’t know I’ll flag you.
Answer:
The sales tax is $0.40
Step-by-step explanation:
10 x 0.04 = 0.4
0.04 is 40% when multiplying
What is the area of ΔXYZ below?
Select the best answer from the choices provided. A. 9√3 4 B. 9√3 3 C. 9√3 2 D. 9√3
Step-by-step explanation:
We need to find the height of the triangle first.
Height=>sin(60°)=h/3 but sin(60°)=√3/2
h=3×√3/2=3√3/2
Area=½×base×height
A=½×3×3√3/2
A=9√3/4
Answer is option A
what’s the slope of the line?
Answer:
(0,0)
Step-by-step explanation:
Daisy went deep sea diving. She makes the first stop in her descent at 25 meters below the surface of the water. From that point she dives down further, stopping every 5 meters. If she makes 3 additional stops, which number represents her position, relative to the surface of the water?
Answer:
-45 M
Step-by-step explanation:
The surface of the water is at 0 m. Heights above the surface are positive and depths below the surface are negative.
IF THIS NOT HELP TELL ME AND IL TRY AGAIN!!!
10.022 in word form
Answer:
ten point zero twenty two
Step-by-step explanation:
How do you write 37.025 in word form?
How to Write Out Number 37.025 in Words: thirty-seven and twenty-five thousandths in (US) American English, Number Converted (Spelled Out) to Words.
A baseball is thrown in a parabolic arc. It's position above the ground at a given point in time can be represented by the quadratic function LaTeX: p\left(t\right)=\frac{1}{2}gt^2+v_0t+p_0p ( t ) = 1 2 g t 2 + v 0 t + p 0, where LaTeX: t\ge0t ≥ 0, LaTeX: gg is -32 ft/sec/sec, LaTeX: v_0v 0 is initial velocity, and LaTeX: p_0p 0 is its initial position above the ground. If the ball was thrown straight up at 16 ft/sec when it was 5 ft above the ground, how high did it go?
Answer:
The baseball reached 9 feet high above the ground
Step-by-step explanation:
The given quadratic function representing the position of the baseball above ground is p(t) = 1/2·g·t² + v₀·t + p₀
Where;
t ≥ 0
g = -32 ft./sec²
v₀ = The initial velocity
p₀ = The initial position
Given that when the ball is thrown, we have;
The initial, straight up, velocity, v₀ = 16 ft./sec
The initial position, p₀ = 5 ft.
Substituting the above values in the quadratic function representing the position of the baseball above ground, we have;
p(t) = 1/2·(-32)·t² + 16·t + 5 = 16·t - 16·t² + 5
At the maximum point, the rate of change of the height with time = 0, therefore;
dp(t)/dt = 0 = d(16·t - 16·t² + 5)/dt = 16 - 32·t
16 - 32·t = 0
16 = 32·t
t = 16/32 = 0.5 seconds
Therefore, the time takes to reach the maximum height = 0.5 seconds
The height (maximum) reached in 0.5 seconds is given as follows;
h(t) = 16·t - 16·t² + 5, from which we have;
h(0.5) = 16 × 0.5 - 16 × (0.5)² + 5 = 9
Therefore, the height baseball reached = 9 ft. above ground
Simplify the following
(X-5)2
Answer:
2x-10 by the distributive property of equality
lemma get some help plz
Answer:
-2.6f -16
Step-by-step explanation:
add like terms -
-2.6 + 0.3 = -2.6f
and
-12-4 = -16
last year raina biked 421 miles this year she biked k miles using k write an expression for the total number of miles she biked
Answer:
i dont know sadly im trying to figure his out too..
Step-by-step explanation: hi
Given the polynomial 5x3−2x2+12, what is the leading coefficient?
******( I"LL GIVE YOU BRAINIEST)!!!******
A. -2
B. 3
C. 5
D. 12
Answer:
a.2
Step-by-step explanation:
Please help me will be much appreciated <3
Answer:
She earned 300 dollars by selling 100 headbands.
Will give crown help
Answer:
D is a right angle
B is an accute angle
A and C are obtuse
Find the circumference of the given circle use 3.14 pie and 7 in diameter
Answer:
43.98
Step-by-step explanation:
2piR
BTW the 7 is the radius not the diameter
Please help! Divide. Write the quotient in lowest terms.
Which of the following expressions is not equivalent to (-2)(8 + 6 + -3)?
answers:
1. (-2)(8) + (-2)(6) + (-2)(-3)
2. (-2)(8 + 6) + (-2)(-3)
3. (-2)(8) + (-2)(6 + -3)
4. (-2)(8 + 6) + (-3)
Answer:
4
Step-by-step explanation:
Hope this helps. Pls give brainliest.
Solve the equation.
–2x – 18 = 6
A. -12
B. -3
C. -2
D. 6
Answer:
-12
Step-by-step explanation:
Step 1: Add 18 to both sides.
−2x−18+18=6+18
−2x=24
Step 2: Divide both sides by -2.
−2x
−2
=
24
−2
x=-12
Answer:
-2x -18=6
+18. +18
-2x=24
÷-2. ÷-2
×= -12
Branliest! Please I'm beggin you! Help me!!!
The lunch lady has 5 pounds of lasagna left over. If she makes 14-pound servings, how many servings of lasagna can she serve with the amount left over?The lunch lady has 5 pounds of lasagna left over. If she makes 14-pound servings, how many servings of lasagna can she serve with the amount left over?
Answer:
How does she make 14 pound servings with 5 pounds ?
Answer:
4/5
Step-by-step explanation:
cus i said so