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Citrus2011 [14]
3 years ago
14

Sally's pet grooming business charges $5 per cat and $10 per dog for a pet bath. She earned $550 for pet baths last month. If 20

of those were cats, how many were dogs?
Mathematics
1 answer:
Minchanka [31]3 years ago
8 0

Answer:

45 dogs

Step-by-step explanation:

so she has $550 and she did 20 cats and it costs $5 per cat and 5 x 20 is $100 and $550 - $100 = 450 and 450 divided by 10 ( because it's $10 per dog) is 45.

You might be interested in
Solve both! For x<br><br> |X + 2| &gt; 5<br><br><br><br> |X + 2| &lt; 5
NISA [10]

Answer:

Your Answer is ...

x > 3 or x < -7

Step-by-step explanation:

1.  x > 3 worked out

|X + 2| > 5

Solve absolute Value

|X + 2| > 5

We know either |X + 2| > 5 or x + 2 < - 5

_________________________________

x + 2 > 5\\x + 2 - 2 > 5 - 2 (Subtract ~2~ from~Both~sides)\\ x >3

2. x < -7 Worked out

x + 2 < - 5\\x+2-2>5-2 (Subtract~2~from~Both~sides)\\x

Hope this Helps!

Take Care!

-Jay-

4 0
3 years ago
I don’t know how to do this, please explain :(
IrinaK [193]

Answer:

1. Adjacent and formed a linear pair

2. Adjacent and formed a linear pair

3. Adjacent

4. Not adjacent

Step-by-step explanation:

In essence, adjacent angles are two angles side by side. Two adjacent angles can form a linear pair when they are created by two lines intersecting. So, in broad terms, they are adjacent on a flat plane (or a straight line), and together they make a 180° angle.

3 0
3 years ago
Help now. a storage tank in the shape of a cuboid of base 2.5 m by 2 m can hold up to 7500 litres of water. Calculate the height
Minchanka [31]

Answer:

Height of the tank is 1.5m

Step-by-step explanation:

Given

Shape: Cuboid

Base Dimension = 2.5m by 2m

Volume = 7500 litres

Required

Determine the height of the tank

First, the area of the base has to be calculated;

Area = 2.5m * 2m

Area = 5.0m^2

Next is to calculate the height using volume formula;

Volume = Area * Height

Recall that Volume = 7500L [Convert to m³]

1 L = 0.001m^3

So;

7500L = 7500 * 0.001m^3

7500L = 7.5m^3

Hence;

Volume = 7.5m^3

Substitute 7.5m³ for Volume and 5.0m² for Area in the following formula

Volume = Area * Height

7.5m\³ = 5.0m\² * Height

Divide both sides by 5.0m²

\frac{7.5m\³}{5.0m\²} = \frac{5.0m\² * Height}{5.0m\²}

\frac{7.5m\³}{5.0m\²} = Height

1.5m = Height

Height = 1.5m

<em>Hence, the height of the tank is 1.5m</em>

5 0
3 years ago
Dylan wants to invest $3500 for 5 years. The bank offers him 4%/a compounded weekly. Calculate the final amount of this investme
yan [13]

Answer:

the final amount value is $4,274.58

Step-by-step explanation:

Given that

Present value = $3,500

Time period = 5 × 52 = 260

Rate of interest = 4% ÷ 52 = 0.0769%

We need to determine the final amount i.e. future value

So as we know that

Future value = Present value × (1 + rate of interest)^time period

= $3,500 × (1 + 0.0769%)^260

= $4,274.58

Hence, the final amount value is $4,274.58

5 0
3 years ago
The mathematics department has just received a $200000 donation. The department wants to invest in an annuity so that they can g
docker41 [41]
i think the answer is 6.7
8 0
3 years ago
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