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NemiM [27]
3 years ago
11

Please help me with my answer

Mathematics
1 answer:
Alekssandra [29.7K]3 years ago
4 0

Step-by-step explanation:

65)  Perimeter = 13 + 12 + 5 or 30 cm

       Area= 5 x 12 / 2 or 30 cm^2

Perimeter formula: Add all the sides

Area formula ( triangle)= 1/2 bh

66) Perimeter = 8 + 4 + 7 + 3.5 or 22.5 ft

     

<h3><u><em>Please mark this as brainliesT!!!</em></u></h3><h3><u><em>thank You!!!</em></u></h3><h3><u><em>:)                  Hope this helps</em></u></h3>

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Ramon was studying pond life in Doyle Park. In two hours, he counted four more frogs than turtles. The number of crayfish he cou
deff fn [24]
Let us assume the number of turtles = x
Then
Number of frogs = x + 4
Number of crayfish = 2x + 3
Total number of turtles and crayfish = 54
Then we can write the equation as
x + 2x + 3 = 54
3x + 3 = 54
3x = 54 - 3
3x = 51
x = 51/3
   = 17
Then
The number of frogs = x + 4
                                  = 17 + 4
                                  = 21
So there are 21 frogs in the pond that has been counted by Ramon.
5 0
3 years ago
Consider the system:
Gnom [1K]

Answer:

Step-by-step explanation:

In this problem, we have the following linear equations:

y=3x+5

y=ax+b

We know that a linear equation is an equation for a line. In a system of linear equations, two or more equations work together.

1.  What values for a and b make the system inconsistent?

A system is inconsistent if and only if the lines are parallel in which case the system has no solution. This is illustrated in the first Figure bellow. Two lines are parallel if they share the same slope. So, the system is inconsistent for:

a=3

for any value of b

2. What values for a and b make the system consistent and dependent?

A system is consistent if and only if the lines are the same in which case the system has infinitely many solutions. This is illustrated in the second Figure bellow. So, the system is consistent and dependent for:

a=3 and b=5

8 0
3 years ago
Read 2 more answers
What did the ancestral puebloans do to make the growing need for housing ​
koban [17]

Answer: How did the Ancestral Puebloans adapt their housing to the building materials that were available in the arid Southwest? They built some houses of stone blocks against canyon walls and built freestanding villages of stone and adobe brick.

Step-by-step explanation:

8 0
3 years ago
Arthur has a balance of $2330 on his credit card, which he plans to pay off by
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Answer:

$80

Step-by-step explanation:

A P E X

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3 years ago
Help....!! I need to solve this simultaneous equation y=x-2 and y=3x+5 With working out if possible please....
Blababa [14]

Step-by-step explanation:

Y= x - 2. Y = 3x + 5

Putting value of y

x - 2 = 3x + 5

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Putting value of x

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3 years ago
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