3 years ago

Is 3y-4x=20 a linear function?

Mathematics

1 answer:

Sati [7]3 years ago

3 0

It is. It's a function of the first power of a variable.

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URGENT NEEDS TO ME SUBMITTED BY MIDNIGHT!! The ratio of girls to boys in Mr. Hansen’s class is 4:5. The ratio of girls to boys i

nadya68 [22]

If the ratio of girls to boys in Mr. Hansen's class is 4:5, and the ratio of girls to boys in Ms. Luna's class is 8:10, then the equation that correctly compares the ratio of both Mr. Hansen's class and Ms. Luna's class are 4/5 = 8/10.

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2 years ago

-3(7+5)<br> What is the value of<br> 22<br> 9(2)?

hodyreva [135]

Answer:

I used the picture to answer the question and the answer was -4

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2 years ago

A ferry departs from a port along the Sands River at 10:00 am. The ferry travels at a speed of 15 mph in still water and returns

jek_recluse [69]

Answer:

Speed of river's current = 5 mph

Step-by-step explanation:

Let 'd' be the distance covered

Let x be the speed of the rivers current

Speed upstream = 15-x

speed downstream = 15+x

Time = distance / speed

time upstream = $\frac{d}{15-x}$

time downstream = $\frac{d}{15+x}$

the ferry trip upstream takes twice as long as its return trip downstream

$\frac{d}{15-x}$ = $\frac{2d}{15+x}$

divide both sides by d

$\frac{1}{15-x}$ = $\frac{2}{15+x}$

cross multiply

$15+x= 2(15-x)$

$15+x= 30-2x$

Add 2x on both sideds

$15+3x= 30$

subtract 15 from both sides and divide by 3

$3x=15$

x=5

Speed of river's current = 5 mph

8 0

3 years ago

Select all names that apply to the Number <br> √4

never [62]

Answer:

$\sqrt{4} = 2$

Step by step explaination:

$\sqrt{4} \\ = \sqrt{ {2}^{2} } \\ = 2$

7 0

3 years ago

Read 2 more answers

What is the next square number in the list? 49, 64, 81,

Anarel [89]

7x7 = 49

8x8=64

9x9=81

10x10=100

5 0

2 years ago