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vaieri [72.5K]
3 years ago
14

Cassandra wants to solve the Quetion 30 equals 2/5 Pete. What operation should she perform to isolate the variable

Mathematics
1 answer:
BartSMP [9]3 years ago
5 0
It sounds like you are setting up the equation below.
(2/5)P = 30

To solve this equation for P, you would multiply both sides of the equation by 5/2.
You might be interested in
Use the given transformation to evaluate the integral.
GuDViN [60]

For the transformation

\begin{cases}x=7u+v\\y=u+7v\end{cases}

the Jacobian is

\dfrac{\partial(x,y)}{\partial(u,v)}=\begin{bmatrix}7&1\\1&7\end{bmatrix}

with determinant

\det\left(\begin{bmatrix}7&1\\1&7\end{bmatrix}\right)=48

The vertices of the triangle in the u,v-plane are

(x,y)=(0,0)\implies(u,v)=(0,0)

(x,y)=(7,1)\implies(u,v)=(1,0)

(x,y)=(1,7)\implies(u,v)=(0,1)

Then the integral is

\displaystyle\iint_R(x-8y)\,\mathrm dA=-48\int_0^1\int_0^{1-v}(u+55v)\,\mathrm du\,\mathrm dv=\boxed{-448}

3 0
3 years ago
What is 25/30 in simplest form?
Triss [41]
You divide the numbers by 5 so the fraction will be 5/6
5 0
3 years ago
30. What is the solution to the system of equations? (1 point)
sesenic [268]

Answer:

Option B) (-1,7,5) is correct.

The solution to the given system of equation is (-1,7,5)

Step-by-step explanation:

Given system of equations are

-7x-2y+z=-2\hfill (1)

6x-y-z=-18\hfill (2)

5x+4y-z=18\hfill (3)

To find the solution of the given system of equations by using Elimination method:

Now adding equations (1) and (2)

-7x-2y+z=-2

6x-y-z=-18

_________________

-x-3y=-20

________________

-x-3y=-20

-(x+3y)=-20

x+3y=20\hfill (4)  (since "-" getting cancelled)

Now adding equations (1) and (3)

-7x-2y+z=-2

5x+4y-z=18

_________________

-2x+2y=16

________________

-2x+2y=16

2(-x+y)=16

-x+y=8\hfill (5)

Now adding equations (4) and (5)

x+3y=20

-x+y=8

_________________

4y=28

________________

y=\frac{28}{4}

Therefore y=7

Substituting y=7 in equation (4)

x+3y=20

x+3(7)=20

x+21=20

x=20-21

Therefore x=-1

Now substituting the values x=-1 and y=7 in equation (1) we get

-7x-2y+z=-2

-7(-1)-2(7)+z=-2

7-14+z=-2

z=-2+7

Therefore z=5

Therefore the solution to the given system of equation is (-1,7,5)

Therefore Option B) (-1,7,5) is correct.

8 0
3 years ago
Divide. 1/3 ÷ 4/5 Express your answer in simplest form.
koban [17]

Answer: 5/12

Step-by-step explanation: To divide one fraction by another, first turn the second fraction upside-down, then multiply.

1/3 ÷ 4/5 = 5/12 ≅ 0.4166667


3 0
3 years ago
Read 2 more answers
mary is putting 7,305 apples into boxes for shipping. each box can hold 96 apples.how many boxes of apples can she fill
kicyunya [14]

Answer:

76

Step-by-step explanation:

7305 divide  by 96 = 76

6 0
3 years ago
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