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andrew-mc [135]
3 years ago
10

Your teacher is giving you

Mathematics
1 answer:
fomenos3 years ago
8 0
10 4 Points = 40 points
30 2 points = 60 points

10 4 point questions and 30 2 point questions
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In a pen of goats and chickens, there are 40 heads and 150 feet. How many goats and chickens are in the pen?
s2008m [1.1K]

Hey there!!

A chicken has 1 head and 2 feet . A goat has 1 head and 4 feet

For heads, total = 40

Let us take the number of chickens as ' x ' and goats as ' y '

x + y = 40 ------------- ( 1 )

2x + 4y = 150 ----------- ( 2 )

Multiply the first equation with 2

2x + 2y = 80

2x + 4y = 150

Subtract the first equation from the first

2y = 70

y = 35

Number of goats = 35

substitute this in other equation

x + y = 40

x + 35 = 40

x = 5

Number of chickens are 4

Hope it helps!

6 0
3 years ago
Tyler used 6 gallons of paint to paint 4/7 of a fence. How many gallons will it take to paint the whole fences
vredina [299]

Answer:

Step-by-step explanation:

(6 gal)/(4/7 fence) = (21/2 gal)/fence = (10.5 gal)/fence

5 0
3 years ago
A box contains 6 red pens and 4 blue pens. Cory randomly picks a pen from
Monica [59]

Answer:

Hay  probabilidad

Step-by-step explanation:

porque hay mas boligrafos rojos que azules

4 0
2 years ago
Pls answer quickly if possible!​
Allisa [31]

Answer:

answer is B. 3 and 2

Step-by-step explanation:

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4 0
2 years ago
Read 2 more answers
Find the area of each regular polygon. Round to the nearest tenth.
miskamm [114]

Given:

A regular polygon with three vertices and side 14 cm.

To find:

Area of the regular polygon.

Solution:

We know that, a regular polygon has equal sides and equal interior angles.

The given regular polygon has three equal sides, it means it is an equilateral triangle.

The area of an equilateral triangle is:

A=\dfrac{\sqrt{3}}{4}a^2

Where, a is the side length of the triangle.

Putting a=14, we get

A=\dfrac{\sqrt{3}}{4}(14)^2

A=\dfrac{\sqrt{3}}{4}(196)

A=84.87049

A\approx 84.9

Therefore, the area of given regular polygon is 84.9 cm².

6 0
3 years ago
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