3 years ago

9) y = 7x - 20 3x + 8y = 17 For substitution

Mathematics

1 answer:

xenn [34]3 years ago

3 0

X=3
y=1
Use substitution method starting with the first equation substitute y in the second equation

You might be interested in

A plane can fly 305 miles downwind in the same amount of time as it can travel 215 miles upwind. Find the velocity of the wind i

son4ous [18]

Answer:

We can compute this in 2 ways:

305 downwind - 260 still air = 45 mph wind velocity

260 still air - 215 downwind = 45 mph wind velocity

Step-by-step explanation:

5 0

3 years ago

Find the missing measurement round your answer to the nearest tenth

yarga [219]

Answer:

Step-by-step explanation:

Let, the unknown side be x.

1/2 × 6.6m × xm = 16.5m²

or, x= 33/6.6

x= 5

4 0

3 years ago

What is the amplitude of the function?

Licemer1 [7]

Answer:

Step-by-step explanation:

Take the absolute value of the lowest y value.

$| - 1| = 1$

Take the absolute value of highest y value.

$|3| = 3$

Add those two together and divide by two.

$\frac{1 + 3}{2} = 2$

So the amplitude is 2

5 0

2 years ago

Write and solve an inequality for the following sentence: Jan has saved $50 in her saving account and needs to save at least $26

Juliette [100K]

50 + x ≥ 268

X ≥ 218

STEP BY STEP WORK

50 + x ≥268
-50 -50

x ≥218

Jan needs to save at least $218 for camp

Hope I helped :)

8 0

3 years ago

What is the answer to this equation <img src="https://tex.z-dn.net/?f=10%5Csqrt%7Bx%7D%2020" id="TexFormula1" title="10\sqrt{x}

AveGali [126]

Factor the expression
Use the properties of radicals
Simplify the roots
Calculate
And your solution will be 20 overall 5
Message me if you want me to write it all down!

8 0

3 years ago