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Lesechka [4]
3 years ago
10

In Sam’s pet corner, there are puppies and parrots, the total of 15 heads and 50 feet. How many parrots and how many puppies?

Mathematics
1 answer:
shepuryov [24]3 years ago
3 0
Puppies = 4 feet
Parrots = 2 feet

15 heads = 15 animals

Assumed all Parrots,
15 x 2 = 30 feet

50 - 30 = 20
There are 20 extra feet which must belong to puppies' extra 2 feet each
20 ÷ 2 = 10

There are 10 puppies
15 - 10 = 5
There are 5 parrots

Check: 
10 x 4 + 5 x 2 = 50 feet (Correct)
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Ostrovityanka [42]

Answer:

-3.98 (nearest hundredth)

Step-by-step explanation:

The average rate of change of function f(x) over the interval a ≤ x ≤ b is given by:

\dfrac{f(b)-f(a)}{b-a}

Given interval:  -2 ≤ x ≤ 2

\implies a = -2

\implies b = 2

\implies f(a) = f(-2)=16

\implies f(b) =f(2)= \dfrac{1}{16}

Substituting the values into the equation:

\begin{aligned}\implies \textsf{rate of change} & =\dfrac{\frac{1}{16}-16}{2-(-2)}\\\\ & = \dfrac{-\frac{255}{16}}{4}\\\\ & = -\dfrac{255}{64}\\\\ & = -3.98\: \sf (nearest\:hundredth)\end{aligned}

7 0
2 years ago
In health class, students record the weights of the sandwiches they have for lunch. The weights are shown in the line plot below
Dvinal [7]
To find the average weight, you need to add all of the numbers and then divide them
I'll start off by doing this:
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1/2+1/2 = 1
then I'll add them together:
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now we need to divide the amount of numbers. the amount of sandwiches weighted (10) will have to be divided
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4 0
4 years ago
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Ierofanga [76]

Check the picture below.

Make sure your calculator is in Degree mode.

7 0
2 years ago
Which expression is equivalent to (7 + 2i)(-3 - 4i)?
malfutka [58]
B -13 -34i

(7 + 2i)(-3 - 4i)
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Then keep simplifying
5 0
3 years ago
What is the solution to the system of equation
maksim [4K]

Answer:

D. (2 , 1)

Step-by-step explanation:

STEP 1: Replace all occurrences of y with -3x+7 in each equation.

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STEP 2: Solve for x in the first equation.

x=2\\y=-3x+7

STEP 3: Replace all occurrences of x with 2 in each equation.

y=1\\x=2

4 0
3 years ago
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