1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
netineya [11]
3 years ago
11

These 2 questions math 9th thanks! will give brainly!!

Mathematics
1 answer:
denis-greek [22]3 years ago
7 0

Answer:

1)     25+7(n-1)

When the above 'n'(hours) is substituted on the equation, it equals up to the right cost.

2)      Given that n represents the no.of bikes, you just plug it in to the equation below.

250+39(n-1)

= 250+39(20-1)

= 250+39*19

= 250+741

= 991

You might be interested in
P and q are different two-digit prime numbers with the same digits, but in reversed order. what is the value of the larger of p
serious [3.7K]
The set of two-digit primes is {11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97}

Of that list, the following primes are mirror images of each other
13 and 31
17 and 71
37 and 73
79 and 97
Note: we ignore 11 since 11 flips to 11 which is not distinct from its original

If you're looking for the largest prime of this form, then its 97
If you're looking for the largest gap, then subtract each pair
31-13 = 18
71-17 = 54
73-37 = 36
97-79 = 18
We see that 71 and 17 have the largest gap
8 0
3 years ago
Read 2 more answers
Elsie wants to find the mass of her pony which unit should she use
iren2701 [21]
Kilograms is probably the best answer.
8 0
3 years ago
Read 2 more answers
Find gradient <br><br>xe^y + 4 ln y = x² at (1, 1)​
cricket20 [7]

xe^y+4\ln y=x^2

Differentiate both sides with respect to <em>x</em>, assuming <em>y</em> = <em>y</em>(<em>x</em>).

\dfrac{\mathrm d(xe^y+4\ln y)}{\mathrm dx}=\dfrac{\mathrm d(x^2)}{\mathrm dx}

\dfrac{\mathrm d(xe^y)}{\mathrm dx}+\dfrac{\mathrm d(4\ln y)}{\mathrm dx}=2x

\dfrac{\mathrm d(x)}{\mathrm dx}e^y+x\dfrac{\mathrm d(e^y)}{\mathrm dx}+\dfrac4y\dfrac{\mathrm dy}{\mathrm dx}=2x

e^y+xe^y\dfrac{\mathrm dy}{\mathrm dx}+\dfrac4y\dfrac{\mathrm dy}{\mathrm dx}=2x

Solve for d<em>y</em>/d<em>x</em> :

e^y+\left(xe^y+\dfrac4y\right)\dfrac{\mathrm dy}{\mathrm dx}=2x

\left(xe^y+\dfrac4y\right)\dfrac{\mathrm dy}{\mathrm dx}=2x-e^y

\dfrac{\mathrm dy}{\mathrm dx}=\dfrac{2x-e^y}{xe^y+\frac4y}

If <em>y</em> ≠ 0, we can write

\dfrac{\mathrm dy}{\mathrm dx}=\dfrac{2xy-ye^y}{xye^y+4}

At the point (1, 1), the derivative is

\dfrac{\mathrm dy}{\mathrm dx}\bigg|_{x=1,y=1}=\boxed{\dfrac{2-e}{e+4}}

4 0
3 years ago
Chloe and tino have a combined age of 48. three years ago chloe was double the age tino is now. find tinos age
jeka94

As  given Chole and Tinos age , the present age of Tino is equal to 15 years.

As given,

Let x and y be the present age of Chole and Tino. respectively.

Combined age = 48

Given condition,

x + y = 48 _______(1)

Three years ago

x - 3 = 2y

⇒x =2y +3 _______(2)

Substitute the value of x in (1),

2y+3 +y =48

⇒ 3y = 45

⇒ y = 15years

Therefore , as given Chole and Tinos age , the present age of Tino is equal to 15 years.

Learn more about age here

brainly.com/question/3023145

#SPJ4

5 0
1 year ago
Additive inverse of -0.5
Veseljchak [2.6K]

Answer:

0.5

Step-by-step explanation:

If you add 0.5 to -0.5, it will equal 0.

4 0
2 years ago
Other questions:
  • Evaluate the determinant for the following matrix: 1 4 4 5 2 2 1 5 5
    14·1 answer
  • In △ABC, m∠A=57°, m∠B=37°, and a=11. Find c to the nearest tenth.
    12·1 answer
  • A falcon flying 55 mph crosses a lake in 1 minute. How long would it take a hummingbird flying 45 mph to cross the same lake?
    14·2 answers
  • - 1 2 (x + 5) = -10 I need helpppppp
    5·2 answers
  • How do I determine if the triangles are similar by angle-angle similarity for #s 2, 4, and 6?​
    11·1 answer
  • Find the missing side lengths​
    11·1 answer
  • A circle has a diameter with endpoints (1,6) and (-3, -6). Find its area.
    6·1 answer
  • Alguém pode me explicar raiz quadrada?
    6·1 answer
  • Carran is building a fence around his rectangular yard. The fence will cover the front and the 2 sides of the yard. The
    15·1 answer
  • Jerry plans to keep up this saving pattern until he can no longer afford it. At that time he hopes to have enough in his account
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!