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2 years ago

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Debby deposits 25% of the money that she earns each week in a savings account. If Debby earns $72 each week, how much money will

she deposits each week?

1 answer:

Aleksandr-060686 [28]2 years ago

3 0

Answer:

$18.75

Step-by-step explanation:

25% is 1/4 of 100%

72 / 4 = 1$8.75

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solve this system using a systems of equations. Discount Rental Cars charges a daily fee plus a mileage fee for renting its cars

kipiarov [429]

Answer:

Barney 145 3 Days 310 Miles

Mary 250 5 Days 600 Miles

A) 3 D + 310 M = 145

B) 5 D + 600 M = 250

Multiplying A) by -5/3

A) -5 D - 516.6666M = -241.66666666

B) 5D + 600M = 250

Adding A) and B)

83.3333 M = 8.3333333333

M = .10 per mile

3 D = 114

Daily Rate = 38 dollars per day

Step-by-step explanation:

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3 years ago

Mariah went to the store to buy a coat. The coat originally cost $120.00. Mariah used a coupon

creativ13 [48]

Answer: $24

Step-by-step explanation:

Mariano saved $24because

120 x 0.2=24

She payed $96

6 0

2 years ago

Read 2 more answers

Kamal wrote the augmented matrix below to represent a system of equations

ra1l [238]

Consider the operation is $R_2\to -3R_2$ .

Given:

The augmented matrix below represents a system of equations.

$\left[\left.\begin{matrix}1&0&1\\1&3&-1\\3&2&0\end{matrix}\right|\begin{matrix}-1\\-9\\-2\end{matrix}\right]$

To find:

Matrix results from the operation $R_2\to -3R_2$ .

Step-by-step explanation:

We have,

$\left[\left.\begin{matrix}1&0&1\\1&3&-1\\3&2&0\end{matrix}\right|\begin{matrix}-1\\-9\\-2\end{matrix}\right]$

After applying $R_2\to -3R_2$ , we get

$\left[\left.\begin{matrix}1&0&1\\-3(1)&-3(3)&-3(-1)\\3&2&0\end{matrix}\right|\begin{matrix}-1\\-3(-9)\\-2\end{matrix}\right]$

$\left[\left.\begin{matrix}1&0&1\\-3&-9&3\\3&2&0\end{matrix}\right|\begin{matrix}-1\\27\\-2\end{matrix}\right]$

Therefore, the correct option is A.

3 0

3 years ago

The following table shows the values of y for different values of x:

solmaris [256]

Answer:

Option B. It represents a nonlinear function because its points are not on a straight line.

Step-by-step explanation:

Let

$A(0,0),B(1,1),C(2,4)$

we know that

If point A,B and C are on a straight line

then

The slope of AB must be equal to the slope of AC

The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

<em>Find the slope AB</em>

$A(0,0),B(1,1)$

substitute in the formula

$m_A_B=\frac{1-0}{1-0}=1$

<em>Find the slope AC</em>

$A(0,0),C(2,4)$

substitute in the formula

$m_A_C=\frac{4-0}{2-0}=2$

so

$m_A_B\neq m_A_C$

Points A, B and C are not on a straight line

therefore

It represents a nonlinear function because its points are not on a straight line

8 0

2 years ago

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Virgil has one sixth of a birthday cake left over he wants to share the leftover cake with 3 friends what fraction of the origin

marta [7]

1/10 hope it helps you out

8 0

3 years ago