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serious [3.7K]
3 years ago
13

8x-29 + 6x-11 + 3x-1 solve for x

Mathematics
2 answers:
brilliants [131]3 years ago
7 0

Answer:

8x-29 + 6x-11 + 3x-1=180

Answer: 180

Step-by-step explanation:

elena-s [515]3 years ago
5 0

Answer:

Step-by-step explanation:

I need help on this too.

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Evaluate the expression. Make sure your work is clearly shown.<br><br> (4/9)^-1/2
irina [24]
Can you make this more clear?? not really sure what I'm supposed to be doing here

8 0
3 years ago
If the ratio of y to x is equal to 3 and the sum of y and x is 80, what is value of y
Rus_ich [418]

Answer:

y = 60

Step-by-step explanation:

<h3>Step 1: Make sense of the given</h3>

"The ratio of y to x is 3"

This means that, y\div x=3

"The sum of y and x is 80"

This means,  x+y=80

<h3>Step 2: Make use of the facts</h3>

If y\div x=3, then y = (3*x).

We can plug this into the other equation by substitution:

x + (3 * x)=80

This simplifies to:

4x = 80

Which we can solve out and get:
x=20.

<h3>Step 3: Plug and Chug</h3>

We solved for x, but we need the value of y.

So, we go back to the equation we first derived: "y = (3*x)".

And now we substitute the value of x, into this.

y = (3 * (20))

By solving this out, we get:
y=60

So, the value of y is 60.

3 0
2 years ago
Rewrite 3x+5y=11 and -5x+7y=9 in slope intercept form
chubhunter [2.5K]

Problem 1

subtract 3 x

5y=-3x+11

divide 5

y=3/5x+2.2'

Problem 2

add 5x

7y=5x+9

divide 7

y=5/7x+1.3'

'notice'

you can put 2.2 into a fraction (11/5) and 1.3 (9/7) if your teacher allows it, but i put them into decimals

4 0
3 years ago
Charmaine is fertilizing her garden. The garden is in the shape of a rectangle. Its length is 12 feet and its width is 10 feet.
Nana76 [90]

Answer:

4 bags

Step-by-step explanation:

lxw

12x10=120

30x4=120

l=length

w=width

6 0
3 years ago
What is the arc length if θ = 7 pi over 4 and the radius is 5?
PolarNik [594]

The formula for arc length is:

s= r∅

Given that ∅= 7π/4

and r= 5

Therefore, arc length s= 7π/4 *5 = 35π/4

4 0
3 years ago
Read 2 more answers
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