3 years ago

-3x+10y=-60 3x+5y=15

Mathematics

1 answer:

Verdich [7]3 years ago

6 0

Answer:

x=10, y=-3

Step-by-step explanation:

solve by addition/elimination

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Ryan can text 22 words in 4 minutes. At this rate, how many words could he text in 12 minutes? Fill out the table of equivalent

aleksandrvk [35]

The answer would be 66
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3 years ago

The inverse variation equation shows the relationship between wavelength in meters, x, and frequency, y.

wolverine [178]

Answer:

$\lambda=10^{-10}\ m$

Step-by-step explanation:

Given that,

The frequency of x-rays, $f=3\times 10^{18}\ Hz$

We need to find the wavelength for x-rays. The relation between wavelength, frequency and speed of light is given by :

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3 years ago

What does N equals in the following equation? N +6+9=32 multiple choice answers are ? A.) 10 B) 20 C) 30

mafiozo [28]

Answer

$\boxed{ \boxed{ \bold{ \purple{N = 17}}}}$

Step by step explanation

$\sf{N + 6 + 9 = 32}$

Add the numbers

⇒ $\sf{N + 15 = 32}$

Move constant to right hand side and change it's sign

⇒ $\sf{N = 32 - 15}$

Calculate the difference

⇒ $\sf{N = 17}$

Hope I helped!

Best regards!!

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3 years ago

Read 2 more answers

Which of the following expressions could NOT be used to find the volume of the sheet cake? Select all that apply.

andre [41]

Incorrect

60 × 3

Correct

12 + 5 + 3

Incorrect

3 × 5 × 12

Correct

12 × 5

Correct

(12 × 5) + 3

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3 years ago

Explain why if two triangles are congruent, then they have to also be similar.

RUDIKE [14]

Answer:

Because if 2 sides are congruent that means 2 sides are the same wich means that each that only one edge can change at a time. I hope this helps.

Step-by-step explanation:

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3 years ago