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notsponge [240]
3 years ago
10

Help! with explanations if possible

Mathematics
1 answer:
k0ka [10]3 years ago
7 0

Answer:

5

Step-by-step explanation:

1. according to the condition

\frac{price \ radio1}{price \ radio2} =\frac{x}{y}

2. when the both prices are increased the ratio is

\frac{x+20}{y+20}=\frac{5}{2}

3. when the both prices are reduced the ratio is

\frac{x-25}{y-25} =\frac{5}{1}

4. using the equations written in steps 2&3 it is possible to make up the system of the two equations:

\left \{ {{\frac{x+20}{y+20}=\frac{5}{2}  } \atop {\frac{x-25}{y-25}= \frac{5}{1} }} \right.

where x=160; y=52.

5. ration x:y=5.

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Geraldine has 200 feet of fencing. She wants to fence in a rectangular area. Which function A(w) represents the area of land tha
Brut [27]

Answer:

A(w) = - w^{2} + 100w

Step-by-step explanation:

First,  we need to find down the length (l) of the rectangular area in term of w

We have 200 feet of fencing is the perimeter of the rectangular area, which mean:

2 (w + l) = 200

<=> l = 100-w

But the area of land: w*l

= w (100-w)

=- w^{2} + 100w

So, A(w) = - w^{2} + 100w  

5 0
3 years ago
I’m really confused on what the answer is supposed to be
kozerog [31]

Answer:

<u>-4 < x < -2</u>

Step-by-step explanation:

Taking the left part of the inequality :

  • 8 > 4 - x
  • x > -4

Taking the right part of the inequality :

  • 4 - x > 6
  • -x > 2
  • x < -2

Solution :

  • <u>-4 < x < -2</u>
6 0
1 year ago
Help please just the answer needed
otez555 [7]

Answer:

6a+12b+18c

Step-by-step explanation:

3 0
3 years ago
Bob's age is 4 times greater than Susanne's age. Dakota is three years younger than Susanne. The sum of Bob's, Susanne's, and Da
Ratling [72]
<span>Susanne is 16 years old.</span>

b = Bob's age

s = Susanne's age

d = Dakota's age

Bob's age is 4 times greater than Susanne's age:

b = 4s

Dakota is three years younger than Susanne:

d = s - 3

The sum of Bob's, Susanne's, and Dakota's ages is 93:

b + s + d = 93


 solve these equations:

b = 4s

d = s - 3

b + s + d = 93


and get:

b = 64 years

s = 16 years

(remember that s = Susanne)

d = 13 years
6 0
2 years ago
Here is another math question that i need help on Please
aleksandrvk [35]
He built 15 robots (4 + 8 + 3) = 15
he built an average of 5 robots per day....(4 + 8 + 3) / 3 = 15/3 = 5
4 0
2 years ago
Read 2 more answers
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