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AlladinOne [14]
3 years ago
14

A family spends $540 every month on food. If the family's income each month is $1800, what percent of the family's income is spe

nt on food?
Mathematics
2 answers:
RSB [31]3 years ago
8 0

Answer:

30%  

Step-by-step explanation:

540/1,800 = .3

.3 x 100 = 30%

Check:

100/30 = 3.33333333

3.33333333 x 540 = 1,800 (roughly because it goes on forever)

bazaltina [42]3 years ago
3 0

Answer:

1,260

Step-by-step explanation:

This is if you subtract those numbers up you would get 1,260

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Solve y′′=sin(x) if y(0)=0 and y′(0)=5.<br><br> y(x)=?
Ksenya-84 [330]

Answer:

y(x)=6x-sin(x)

Step-by-step explanation:

Rewrite the differential equation as:

\frac{d^{2} y }{dx^{2} } =sin(x)

Integrate both sides with respect to x:

\int\ \frac{d^{2} y }{dx^{2} } dx = \int\ sin(x) dx

\frac{dy}{dx} =-cos(x)+C_1

Integrate one more time both sides with respect to x:

\int\ \frac{dy}{dx} = \int\ -cos(x)+C_1 dx

y(x)=-sin(x)+C_1x+C_2

Now that we find the solution, let's find its derivate:

y'(x)=C_1-cos(x)

Evaluating the initial conditions:

y(0)=C_1(0)+C_2-sin(0)=0\\C_2=0

y'(0)=C_1-cos(0)=5\\C_1=5+1=6

Replacing the value of the constants that we found in the differential equation solution:

y(x)=6x-sin(x)

6 0
3 years ago
Mr. Nguyen bought a package of 4 chicken legs and a package of 6 chicken wings. Ms. Dawen bought a package of 3 chicken legs and
gulaghasi [49]

Answer:

weight of legs - 7 ounces

weight of wings - 4 ounces

Step-by-step explanation:

Let the weight of a chicken leg be represented by l

Let the weight of a chicken wing be represented by w

The total weight of Mr. Nguyen's package can be represented by this equation :

4l + 6w = 52

The total weight of Ms. Dawen's package can be represented by this equation :

3l + 6w = 45

To find the weight of the legs and wing, use simultaneous equation

4l + 6w = 52 eqn 1

3l + 6w = 45 eqn 2

Subtract equation 2 from 1

l = 7 ounces

Substitute for l in equation 1

4(7) + 6w = 52

28 + 6w = 52

Solve for w

w = 4 ounces

4 0
3 years ago
How do you do this. because I'm so lost
frozen [14]
The 2 top sides of it are 36 mm2, but idk the rest.
7 0
3 years ago
Read 2 more answers
What is 1 3/4*4 1/6?
Dima020 [189]

Answer:

.42

Step-by-step explanation:

6 0
3 years ago
A^2 + b^2 = c^2 (solve for c)
saul85 [17]

c = √a^2+b^2

c = -√a^2+b^2

8 0
3 years ago
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