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2 years ago

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A graduated cylinder containing 40 mL of water has a total mass of 60 g. A solid object carefully lowered into the graduated cyl

inder. The level of the water rises to 70 mL. The total mass of the cylinder, water and object is now 95 g what is the mass? volume? and density

1 answer:

Kruka [31]2 years ago

4 0

I need someone to help me with frech do u know frech

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Write the equation of a line through points (5, 5) and (1, 0) in point-slope form

klasskru [66]

Answer:

y=(5/4)x-5/4

Step-by-step explanation:

First we need to find the slope:

$\frac{y_{2}-y_{1} }{x_{2}-x_{1} }$

= $\frac{5-0}{5-1}$

=5/4

The SLops is 5/4

point-slope forum is

y=(5/4)x-5/4

(i think)

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2 years ago

The area of a square is given by x2, where x is the length of one side. Mary's original garden was in the shape of a square. She

Vinil7 [7]

Answer:

$128\text{ ft}^{2}$

Step-by-step explanation:

We have been given that the area of a square is given by $x^2$ , where x is the length of one side.

Mary's original garden was in the shape of a square. She has decided to double the area of her garden. So the new area of Mary's garden will be 2 times the area of original garden.

We can represent this information in an equation as:

$\text{Area of Mary's new garden}=2x^{2}$

Therefore, the expression $2x^2$ will represent the area of Mary's new garden.

To evaluate the area of new garden, if the side length of Mary's original garden was 8 feet, we will substitute x equals 8 in our expression.

$\text{Area of Mary's new garden}=2(8\text{ ft})^{2}$

$\text{Area of Mary's new garden}=2*64\text{ ft}^{2}$

$\text{Area of Mary's new garden}=128\text{ ft}^{2}$

Therefore, the area of Mary's new garden will be 128 square feet.

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2 years ago

What is the value of x?<br> (2x-54)<br> (16)°

vagabundo [1.1K]

Answer:

23

Step-by-step explanation:

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1 year ago

You are a bookkeeper, and you make $15.66 an hour. You worked 80 hours during the pay period. Anyone who makes an income is requ

monitta

You have to pay $250.56 in taxes

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2 years ago

Kaya's family spends $105 to rent a boat for 7 days. The total cost, c, of the boat rental is proportional to the number of days

Elza [17]

Answer:

$c=15d$

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form $k=\frac{y}{x}$ or $y=kx$

Let

c ----> the total cost of the boat rental

d ---> is the number of days, the family rents the boat

we know that

Kaya's family spends $105 to rent a boat for 7 days

so

For d=7 days, c=$105

Find the value of the constant of proportionality k

$k=\frac{c}{d}$

substitute the given values

$k=\frac{105}{7}=\$15\ per\ day$

therefore

The linear direct equation is equal to

$c=15d$

8 0

2 years ago