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Romashka-Z-Leto [24]
3 years ago
10

The local animal shelter accepts abandoned cats and dogs. They usually receive twice as many cats as dogs. They estimate that 80

% of the cats and 60% of the dogs that come in need some kind of medical treatment. If they treated 286 animals last year how many cats and dogs did they take in?
Mathematics
1 answer:
AnnyKZ [126]3 years ago
4 0

around 152 cats and around 57 dogs

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Cole is an urban planner. He wants to create a small scale drawing of a city block. The block is a square with sides of length 1
Mashcka [7]
So if 11 units on the map is 5m in real life, the scale is 11 units= 5m
But we need 100m.
We would need 20 groups of 5m to get 100m.
So we would need 20 groups of 11 units, which is 220 units.
So, on the scale drawing, the square would need to be 220 units by 220 units.
5 0
3 years ago
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Two numbers have a product of 20. The second number is three less than twice the first number. What are the two numbers?
yan [13]

Answer:

4 and 5

Step-by-step explanation:

xy = 20

x = 2y - 3

(2y-3)y = 20

2y^2 - 3y = 20

2y^2 - 3y - 20 = 0

Solve the quadratic equation

you get y = 4, -5/2

Use 5 since it is one of the options

xy = 20, y = 4

x = 5

4 0
3 years ago
Laura has a backyard that she wants to renovate. Her
miskamm [114]

Answer:

Area of the walkway = 8<em>x </em>+ 24

Step-by-step explanation:

Area of the total backyard = l\times b

Area of total backyard = (x+6)\times (x+4) = x^{2} +10x + 24

Now, Area of the rectangular garden = l\times b

Area of the rectangular garden = x (x+2) = x^{2} + 2x

Now area of the walkway poured with concrete = Area of the backyard - Area of the rectangular garden

= (x^{2} +10x +24) - (x^{2} +2x)

= x^{2} + 10x +24 - x^{2} -2x

= 8<em>x</em> + 24  

 

4 0
3 years ago
Which calculation will ALWAYS give a result greater than 1? A.5 × a number less than 1 B.4/9+ a fraction less than 12 C. 1 3/4 -
Bas_tet [7]

Answer:

  C.  1 3/4 - (a fraction less than 3/4)

Step-by-step explanation:

Your number sense should be able to help you with this one.

A. 5 × 1/10 = 1/2, not a number greater than 1

B. 4/9 + 1/3 = 7/9, not a number greater than 1

C. 1 3/4 -1/2 = 1 1/4, a number greater than 1 (see below for more explanation)

D. 7/8 × 1/2 = 7/16, not a number greater than 1.

__

<em>More explanation</em>

Let x represent a number less than 3/4. Then we want to make sure that ...

  y = 1 3/4 - x

will be greater than 1.

Solving for x, we get ...

  x = 1 3/4 - y

Applying the requirement that x < 3/4, we have ...

  x < 3/4

  (1 3/4 -y) < 3/4

  1 3/4 < y + 3/4 . . . . . . add y

  1 < y . . . . . . . . . . . . . . .subtract 3/4

We see that the condition on x makes sure that y is always greater than 1.

3 0
3 years ago
Sara buys 3 of the same type of dress, but in different colors. If she spends a total of $80.34, how much does each dress cost?
Musya8 [376]

Answer:

80.34 / 3 = 26.78


5 0
3 years ago
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