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KIM [24]
2 years ago
8

How many solutions does 3x+5=7x-20 have?

Mathematics
1 answer:
Umnica [9.8K]2 years ago
3 0

Answer:

1

Step-by-step explanation:

<em>hey there,</em>

<em />

< 3x-7x = -20-5

-4x = -25

x = \frac{25}{4}

This isn't a square root or anything like that, so you would really only have 1 answer. I'm not sure what your teacher's referring to, though, but maybe they want decimals/mixed fractions?

But I would just put 1 if I were you. >

<u>Hope this helped! Feel free to ask anything else.</u>

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0.23 or 2.3% which is greater?
lisabon 2012 [21]

Answer:

0.23

Step-by-step explanation:

2.3% = 0.023

So 0.23*100=23% therefore larger than 2.3%


Any questions feel free to ask. Thanks

8 0
3 years ago
. A retailer sold 10 packs of pens in 3 days. There were 48 pens in each pack. He sold twice as many pens on Sunday than on Mond
Marizza181 [45]

Answer:

The number of pens sold on Monday is 107 pens

Step-by-step explanation:

total pack of pen sold by the retailer in 3 days =  10 packs

total number of pens in the 10 packs = 48 x 10 = 480 pens

let the number of pens sold on Monday = x

let the number of pens sold on Sunday = y

let the number of pens sold on Tuesday = z

He sold twice as many pens on Sunday than on Monday

y = 2x ------equation (1)

He sold 55 pens fewer on Tuesday than on Sunday

y = z + 55 ------equation (2)

total number of pens sold in the three days

y + z + x = 480  ------equation (3)

from equation (1) make x the subject of the formula

x = y/2

from equation (2) make z the subject of the formula

z = y - 55

substitute the value of x, and z into equation (3)

y + y/2 + y - 55 = 480

2y + y/2 = 480 + 55

5y/2 = 535

5y = 535 x 2

5y = 1070

y = 1070 / 5

y = 214

The number of pens sold on Monday is:

x = y / 2

x = 214 / 2

x = 107 pens

Thus, the number of pens sold on Monday is 107 pens

5 0
3 years ago
PLS PLS HELP ME THIS IS DUE TONIGHT
nika2105 [10]
I’m so confused?? what’s the question?
5 0
2 years ago
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A pizza place charges $5.00 for a cheese pizza and $1.75 for each additional topping. Which equation models the total price of a
inysia [295]

Answer:

C

Step-by-step explanation: This is c because 1.75 t is right because they don't know how many toppings you are going to put on but they do know how much you will automatically have to pay for the pizza itself. That is why it is 1.75t(toppings) plus the 5 dollars for pizza.

Hope this helps!

4 0
3 years ago
What is number 315,962,004 write in words ​
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Answer:

three hundred  fifteen million nine hundred sixty two thousand four

Step-by-step explanation:

5 0
2 years ago
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