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2 years ago

Which phrase describes the algebraic expression r/9

Mathematics

1 answer:

raketka [301]2 years ago

8 0

Well if its fora circle it would be r ( radios, Half of the Diameter) divided by 9

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What is the volume of this prism 10mm 8mm 12mm 3mm 2mm

Solnce55 [7]

Answer:

5760 mm

Step-by-step explanation:

just multiply lol

3 0

2 years ago

Solve for x: (8x + 15) = 24

Hatshy [7]

Answer:

Step-by-step explanation:

8x + 15 = 24

8x = 9

x = $\frac{9}{8}$

7 0

2 years ago

Read 2 more answers

If f(x) = -3x - 5 and g(x) = 4x - 2, find (f+ g)(x).

Hunter-Best [27]

Answer: x-7

Step-by-step explanation:

$f(x)+g(x)=-3x-5+4x-2=\boxed{x-7}$

8 0

1 year ago

Gemma had 25.75 grams of frosting to make a cake. She decided to use only 15.5 grams of the frosting. How much frosting does Gem

Finger [1]

Answer:

10.2 grams

Step-by-step explanation:

Gemma had 25.75 grams of frosting

Used 15.5 grams

25.75 - 15.5 = 10.2 grams

8 0

3 years ago

An express train travels 80km/h from Ironton to Wildwood. A local train, traveling at 48km/h, takes 2 hours longer for the same

masha68 [24]

Answer:

They are 240 kilometers apart.

Step-by-step explanation:

This question can be solved using the following relation:

$v = \frac{d}{t}$

In which v is the velocity, d is the distance and t is the time.

An express train travels 80km/h from Ironton to Wildwood.

Here we have $v = 80, t = x$ . So

$v = \frac{d}{t}$

$80 = \frac{d}{x}$

$d = 80x$

A local train, traveling at 48km/h, takes 2 hours longer for the same trip.

This means that when $v = 48, t = x + 2[tex]. So[tex]v = \frac{d}{t}$

$48 = \frac{d}{x+2}$

Since $d = 80x$

$48 = \frac{80x}{x+2}$

Applying cross multiplication

$80x = 48(x + 2)$

$80x = 48x + 96$

$32x = 96$

$x = \frac{96}{32}$

$x = 3$

So the distance is:

$d = 80x = 80*3 = 240$

They are 240 kilometers apart.

3 0

2 years ago