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Valentin [98]
3 years ago
5

Estimate the solution to the system of equations.

Mathematics
1 answer:
klemol [59]3 years ago
8 0

Answer:

x=1/2; y=-6

Step-by-step explanation:

2x-2=-2x-5

4x=2

x=1/2

y=-1-5

y=-6

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Donna sent her grandson a birthday present. The box weighed 0.875 kilograms and the present itself weighed 6,800 grams. a. What
Nana76 [90]
A) We know that the box weighed 0.875 kg, and the present weighed 6,800 g. However we need the gross weight of the package in kg, so we have to convert the present's weight to kg. There are 1000 grams in 1 kg, so we can divide the present's weight by 100 to find the weight in kg:

\frac{6,800}{1000} =6.8 kg

Now that we have converted to grams, let's add the weight to get the total gross weight:

0.875+6.8=7.675 kg

So the gross weight of the package is 7.675 kg.

b) Shipping costs 74 cents per kg, so in order to find the total cost of shipping for the package, let's multiply the weight of the package by the cost of shipping:

\frac{7.675kg}{1}* \frac{74 cents}{kg}=567.95 cents

However the cost of shipping has to be in dollars. There are 100 cents in one dollar, so we need to divide the amount of cents that shipping costs by 100 to get the total in dollars:

\frac{567.95cents}{100} =5.68dollars

Now we know that the total cost of shipping, in dollars, is equal to $5.68.
7 0
3 years ago
(3m2 + 5m - 2) + (-2m +18)?
sergeinik [125]

Answer:

3m^{2}+3m+16

Step-by-step explanation:

Start with:

(3m^{2} +5m-2)+(-2m+18)\\

Combine like terms:

3m^{2}+3m+16

3 0
3 years ago
Read 2 more answers
Solve. x² – 5x + 6 = 0<br><br> {–2, –3}<br><br> {2, 3}<br><br> {3, –2}<br><br> {5, –1}
ddd [48]
What 2 numbes multiply go get 6 and add to get -5
-6 and 1

(x-6)(x+1)=0
set to zero

x-6=0
x=6

x+1=0
x=-1

last one
4 0
3 years ago
The volume of a cube is the cube of the length of a side. If a side is S, the volume is S^3. What is the volume of a cube with s
sergij07 [2.7K]

Volume is a three-dimensional scalar quantity. The volume of the cube with side length of 4 inches is 64 inches³.

<h3>What is volume?</h3>

A volume is a scalar number that expresses the amount of three-dimensional space enclosed by a closed surface.

Given the volume of a cube is the cube of the length of a side. If a side is S, the volume is S^3. Therefore, the volume of cube with side 4 inches will be,

Volume of the cube = (4 in)³ = 64 in³

Hence, the volume of the cube with side length of 4 inches is 64 inches³.

Learn more about Volume:

brainly.com/question/13338592

#SPJ1

6 0
2 years ago
Can someone help with this math question please
hoa [83]
The only point in the solution space is that of selection ...
  C   (1, 3)

5 0
3 years ago
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