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wariber [46]
3 years ago
8

9-3x/4+20y for x=4 and y=5​

Mathematics
1 answer:
aliya0001 [1]3 years ago
4 0

Answer:

106

Step-by-step explanation:

cauclator

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Brainlyest? I only give it out if the answer is right
blondinia [14]

Answer:

c is the correct answer. -1.5(w-5)

#3

4 0
3 years ago
Can someone answer the blank ones please!!!
Katyanochek1 [597]

The equation is 155p+225f=5050.

If p = 17, f = 13. This value is a reasonable value in this context.

If f = 28, p = -10. This value is not reasonable in this context.

Step-by-step explanation:

Step 1:

155p+225f=5050,

where p is the part-time memberships and f is the number of full-time memberships.

Kiri needs to make $5,050 a month from this rented space.

Each part-time membership costs $155 and each full-time membership costs $225.

Step 2:

We need to calculate the value of f when p = 17,

Substituting the value, p = 17 in the equation, we get;

125(17)+225f=5050, 225f=5050-125(17),

225f=2925, f = \frac{2925}{225}, f =13.

The value of f = 13 and p = 17. This is a reasonable value in this context.

Step 3:

We need to calculate the value of p when f = 28,

Substituting the value, f = 28 in the equation, we get;

125p+225(28)=5050, 125p=5050-225(28)

125p=-1250, p = \frac{-1250}{125}, p=-10.

The value of f = 28 and p = -10. This is not a reasonable value in this context. as the values of f and p cannot be negative for this given equation.

5 0
3 years ago
he books in a private library are classified as fiction and nonfiction. There are 400 books in the library. There are 40 more fi
vfiekz [6]
First, you have to set a system of equations to determine the number of fiction and of nonfiction books.Call f the number of fiction books and n the number of nonfiction books. Then 400 = f + n. And f = n + 40 => n = f - 40 => 400 = f + f - 40 => 400 - 40 = 2f => f = 360 / 2 = 180. Now to find the probability of picking two fiction books, take into account the the Audrey will pick from 180 fiction books out of 400, and Ryan will pick from 179 fiction books out of 399, so the probability will be<span> (180/ 400) * (179/399) = 0.20 (rounded to two decimals). Answer: 0.20</span>
3 0
4 years ago
Would I use (y² - y¹) / (x² - x¹) or y=mx + b?<br><br> If possible please help!! Evens ONLY!!
lys-0071 [83]

Answer:

You would use y2 - y1 / x2 - x1

Since you are trying to find the slope of the line...

Step-by-step explanation:


5 0
4 years ago
Read 2 more answers
I WILL AWARD BRAINLIEST!
Advocard [28]
8/40 is a larger percent
6/20 is larger
400 to 500 is a larger change
50 to 40 is a larger change
8 0
3 years ago
Read 2 more answers
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