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3 years ago

Tom brought a lawnmower on sale for 75. it was on sale for 75% of the original cost how much was original cost?

Mathematics

2 answers:

xxMikexx [17]3 years ago

8 0

P-.75p=75
p(1-.75)=75
p=75/(1-.75)=$300

stepan [7]3 years ago

3 0

Hey You!

This question is asking us, "75 is 75% of what number?"

75 × 100 / 75 = 100

The original cost was $100.

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3-3x6+2=what is correct answer

mojhsa [17]

First you have to follow the rule PEMDAS, which would mean doing 3×6, which would get you 18, with that,you do 3-18 and you would get -15, then you would do -15 + 2 and get -13. fyi, PEMDAS is parentheses, exponents, multiplication, division, addition, and subtraction, you also always go from right to left in an equation or expression.

4 0

4 years ago

What equals 891 in multiplication but are prime numbers?

Ghella [55]

Your answer is 297 and 3. If multiplied, it equals 891. Plus they are both prime numbers since they can't be divide by anything except one and itslef

8 0

3 years ago

If a,b, and c are prime numbers, do (a+b)(a+b) and cc have a common factor that is greater than 1?

Tanya [424]

Answer:

1. Information is not sufficient

2. Information is not sufficient

Step-by-step explanation:

Question Modified

If a,b, and c are prime numbers, do (a+b) and c have a common factor that is greater than 1?

(1) a,b, and c are all different prime numbers

(2) c≠2

Explanation

1. Let's assume values of 1,3 and 5 to a, b, and c respectively

a + b = 1+3 = 4

4 and 5 do not have any common factor aside 1

Let's assume values of 1,3 and 2 to a,b and c respectively

a + b = 1+3 = 4

4 and 2 have a common factor of 2

So, the available information is not sufficient

Let's assume values of 2,7 and 3 to a b and c response

a + b = 2 + 7 = 9

9 and 3 have a common factor of 3

Also, let's assume values of 2,7 and 5 to a, b and c

a + b = 2 + 7 = 9

9 and 5 do not have a common factor

So, the available information is also not sufficient to answer the question.

3 0

4 years ago

Find x, if 3x − 5(y + x ) ^2 = 16 and 4x + 2(y + x )^ 2 = 30

lana66690 [7]

Answer:

x = 7

Step-by-step explanation:

Start by solving for $(y+x)^2$ which is a common expression for both equations. Then in the first equation:

$3\,x5\,(y+x)^2=16\\3x-16=5\,(y+x)^2\\(y+x)^2=\frac{3\,x-16}{5}$

and in the second equation:

$4\,x+2\,(y+x)^2=30\\2\,(y+x)^2=30-4\,x\\(y+x)^2=15-2\,x$

Now we make the two $(y+x)^2$ expressions equal so we get:

$\frac{3\,x-16}{5} =15-2\,x\\3\,x-16=75-10\,x\\13\,x=75+16\\13\,x=91\\x=7$

8 0

4 years ago

6. Reasoning One brand of cranberry-apple drink is

algol13

Answer:

40%

Step-by-step explanation:

40-25= 15

so put the 40% cranberry juice in a jar then calculate 15% of the juice and take that out so you can have 25%

8 0

4 years ago