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
3241004551 [841]
3 years ago
9

Polly bought a cracker for $7 and then bought a parrot for $2. By how much did Polly's account change after her transactions?

Mathematics
1 answer:
marysya [2.9K]3 years ago
7 0

Answer:

Changes = -\$9

Step-by-step explanation:

Given

Cracker = \$7

Parrot = \$2

Required

Determine the changes in the account

First, we need to determine the total amount spent;

Total = Cracker + Parrot

Total = \$7 + \$2

Total = \$9

<em>Hence, the changes in her account is a debit of $9 i.e. -$9</em>

You might be interested in
Pls help.................
Crank
The correct answer is u multiple it by 5 then u move it directions
7 0
3 years ago
Read 2 more answers
Solve the system of linear equations for x and y.(cos θ)x + (sin θ)y=1(−sin θ)x + (cos θ)y = 0x=y=
lys-0071 [83]

Answer:

\bold{x =cos\theta}\\\bold{y=sin\theta}

Step-by-step explanation:

The given system of linear equations is:

(cos\theta)x+(sin\theta)y=1\\(-sin\theta)x+(cos\theta)y=0

We have to solve the equations for the values of x, y.

Let us use elimination method in which we eliminate one of the variables from the two variables.

For this, let us multiply the first equation by sin\theta and second equation by cos\theta

Now, the equations become:

(cos\theta.sin\theta)x+(sin\theta.sin\theta)y=sin\theta\\\Rightarrow (cos\theta.sin\theta)x+(sin^2\theta)y=sin\theta ....... (1)\\\\(-sin\theta.cos\theta)x+(cos\theta.cos\theta)y=0\\\Rightarrow (-sin\theta.cos\theta)x+(cos^2\theta)y=0 ..... (2)

Now, let us add (1) and (2):

(sin^2\theta)y+(cos^2\theta)y=sin\theta\\\Rightarrow (sin^2\theta+cos^2\theta)y=sin\theta\\\Rightarrow (1)y=sin\theta\\\Rightarrow y = sin\theta

Using the equation:

(-sin\theta)x+(cos\theta)y=0

Putting value of y:

\Rightarrow (-sin\theta)x+(cos\theta)sin\theta=0\\\Rightarrow (sin\theta)x=(cos\theta)sin\theta\\\Rightarrow x = cos\theta

So, the answer to the system of linear equations is:

\bold{x =cos\theta}\\\bold{y=sin\theta}

7 0
3 years ago
Which is bigger 0.5 or 9%​
Gnom [1K]

this answer is 9% it is bigger than 0.5

7 0
2 years ago
Read 2 more answers
If f and g are differentiable functions for all real values of x such that f(1) = 4, g(1) = 3, f '(3) = −5, f '(1) = −4, g '(1)
belka [17]

Answer:

h'(1)=0

Step-by-step explanation:

We use the definition of the derivative of a quotient:

If h(x)=\frac{f(x)}{g(x)}, then:

h'(x)=\frac{f'(x)*g(x)-f(x)*g'(x)}{(g(x))^2}

Since in our case we want the derivative of h(x) at the point x = 1, which is indicated by: h'(1), we need to evaluate the previous expression at x = 1, that is:

h'(1)=\frac{f'(1)*g(1)-f(1)*g'(1)}{(g(1))^2}

which, by replacing with the given numerical values:

f(1) =4\\g(1)=3\\f'(1)=-4\\g'(1)=-3

becomes:

h'(1)=\frac{f'(1)*g(1)-f(1)*g'(1)}{(g(1))^2}=\\=\frac{-4*3-4*(-3)}{(3)^2}=\frac{-12+12}{9} =\frac{0}{9} =0

3 0
3 years ago
Solve the equation 14z=224
kolbaska11 [484]

Answer:

16

Step-by-step explanation:

224/14=16

6 0
3 years ago
Read 2 more answers
Other questions:
  • Is x-3/5 = N and N = 6, what is the value of x?
    10·2 answers
  • Find the extraneous solution of the equation |9 – 4x|= -5x .
    7·1 answer
  • An elephant can run of a mile in 36 seconds. At this rate, which expression can be used to determine how fast an elephant runs i
    6·1 answer
  • Ethan has a checking account. His opening balance on 10/10 was $160. The bank charges $1.75 for each nonbank ATM transaction, 25
    6·1 answer
  • Opinions please! Im doing a research paper in school for English (and part math) and my topic is "Is NASA a Waste of Money?" I h
    12·1 answer
  • Evelia paid $70 for 8 movie tickets. Each ticket costs the same amount. What is the cost of each movie ticket in dollars and cen
    12·2 answers
  • submarine titan descended 93 meters into the ocean to look for fish. Submarine Odyssey descended 3 times as deep. What is Odysse
    9·1 answer
  • Use the factors of the function and the y-intercept to find the standard form of the equation representing Jared’s function.
    5·1 answer
  • Pls help I need the answer
    12·2 answers
  • Answer these questions please !
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!