Lexi made 14 sandwiches for a group picnic. The number of ham sandwiches she made was 4 less than the twice the number of turkey
sandwiches she made.
1 answer:
x = # of ham sandwiches
14-x = # of turkey sandwiches ( as Lexi made 14 sandwiches)
as the question said that the number of ha sandwiches are 4 less than twice number of turkey sandwiches,
x = 2 * (14-x) - 4 = 24 - 2x
3x=24
x = 8
the number of ham sandwiches is 8, and the number of turkey sandwiches is 14-8=6
You might be interested in
50=t/2+8
50-8=t/2
42=t/2
2×42=t
84=t
check: 50=84/2+8
50= 42+8
50=50
Answer:
1
Explanation:
Radius = C/2π
C is 6.28 and 2*pi is also 6.28
So 6.28/6.28 = 1.
10 divided by 30 hope that helpd you
Take
![\begin{cases}u=x-y\\v=x+y\end{cases}](https://tex.z-dn.net/?f=%5Cbegin%7Bcases%7Du%3Dx-y%5C%5Cv%3Dx%2By%5Cend%7Bcases%7D)
so that
![\begin{cases}\mathbf x(u,v)=\dfrac{u+v}2\\\\\mathbf y(u,v)=\dfrac{-u+v}2\end{cases}](https://tex.z-dn.net/?f=%5Cbegin%7Bcases%7D%5Cmathbf%20x%28u%2Cv%29%3D%5Cdfrac%7Bu%2Bv%7D2%5C%5C%5C%5C%5Cmathbf%20y%28u%2Cv%29%3D%5Cdfrac%7B-u%2Bv%7D2%5Cend%7Bcases%7D)
and the Jacobian determinant is
![|\det J|=\left|\begin{vmatrix}\mathbf x_u&\mathbf x_v\\\mathbf y_u&\mathbf y_v\end{vmatrix}\right|=\dfrac12](https://tex.z-dn.net/?f=%7C%5Cdet%20J%7C%3D%5Cleft%7C%5Cbegin%7Bvmatrix%7D%5Cmathbf%20x_u%26%5Cmathbf%20x_v%5C%5C%5Cmathbf%20y_u%26%5Cmathbf%20y_v%5Cend%7Bvmatrix%7D%5Cright%7C%3D%5Cdfrac12)
So the integral is (NOTE: I'm guessing on what the integrand is supposed to be)
![\displaystyle\iint_R7xye^{x^2-y^2}\,\mathrm dA=\frac78\int_{u=0}^{u=10}\int_{v=0}^{v=4}e^{uv}(v^2-u^2)\,\mathrm dv\,\mathrm du](https://tex.z-dn.net/?f=%5Cdisplaystyle%5Ciint_R7xye%5E%7Bx%5E2-y%5E2%7D%5C%2C%5Cmathrm%20dA%3D%5Cfrac78%5Cint_%7Bu%3D0%7D%5E%7Bu%3D10%7D%5Cint_%7Bv%3D0%7D%5E%7Bv%3D4%7De%5E%7Buv%7D%28v%5E2-u%5E2%29%5C%2C%5Cmathrm%20dv%5C%2C%5Cmathrm%20du)
Answer:
0+x=10
20-x=10
30-10-x=10
Step-by-step explanation: