All categories

2 years ago

Sheri is saving up for college textbooks. She has saved $840, but she needs at least $2,460 to cover the cost of the textbooks.

Mathematics

1 answer:

Ratling [72]2 years ago

8 0

Answer:

A. x ≥ 60

Step-by-step explanation:

Amount already saved + amount tutoring = at least $2,460

⇒ 840 + 27x ≥ 2,460

⇒ 27x ≥ 1620

⇒ x ≥ 60

Therefore, Sheri has to give <u>at least 60</u> tutoring sessions.

You might be interested in

Please help and thank you

Gekata [30.6K]

Answer:

A. $11\frac{5}{8}\textrm{ inches}$

Step-by-step explanation:

Given:

The regular polygon is a decagon having 10 sides.

Perimeter of the given polygon is,

$P=116\frac{1}{4}\textrm{ inches}=116.25\textrm{ inches}$ .

We know that, perimeter of a regular polygon of $n$ sides is given as,

$P=na$ where, $a$ is the length of each side.

Here, $n=10,P=116\frac{1}{4}\textrm{ in}$

Plug in these values and solve for $a$ . This gives,

$P=na\\116\frac{1}{4}=10a\\116.25=10a\\a=\frac{116.25}{10}=11.625=11+\frac{625}{1000}=11+\frac{5}{8}=11\frac{5}{8}\textrm{ in}$

Therefore, the side length of the given polygon is $11\frac{5}{8}\textrm{ inches}$

3 0

3 years ago

Need help asap!!

In-s [12.5K]

Answer:D

Step-by-step explanation:

(3x^3 - 5x^2 + 4x - 9)-(7x^3 - 8x^2 - 5x + 10)

open brackets

3x^3 - 5x^2 + 4x - 9 - 7x^3 + 8x^2 +5x - 10

Collect like terms

3x^3-7x^3-5x^2+8x^2+4x+5x-9-10

-4x^3+3x^2+9x-19

8 0

3 years ago

Please.<br>solve the system of equations

Talja [164]

Solve for the first variable in one of the equations, then substitute the result into the other equation.

Point Form: (3,2)

Equation form:

x = 3

y = 2

4 0

3 years ago

Use the unit price to find the total price.8 gallons at $1.94 per gallon

Alika [10]

1.94 / 8 = 0.2425 rounds to 0.24....so unit price is 24 cents per gallon

5 0

3 years ago

What is the volume of the composite figure shown below?

AVprozaik [17]

Answer:

2412 mm³

Step-by-step explanation:

In the figure attached, the composite figure is shown.

Dimension of top rectangular prism:

length of 13 millimeters

width of 12 millimeters

height of 12 millimeters

Volume of top rectangular prism: length*width*height = 13*12*12 = 1872 mm³

Dimension of bottom rectangular prism:

length of 15 millimeters

width of 12 millimeters

height of 3 millimeters

Volume of bottom rectangular prism: length*width*height = 15*12*3 = 540 mm³

Volume of the composite figure: 1872 + 540 = 2412 mm³

7 0

3 years ago