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2 years ago

Help me plz and thank you

Mathematics

1 answer:

svp [43]2 years ago

6 0

X+5°=2x-25°
x-2x=-25-5
-x=-30°
x=30°

x+5°= y+28°
30°+5°= y+28°
35°= y+28°
y= 35°-28°
y=7°

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Which term describes this figure?

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Answer:

its a angle

Step-by-step explanation:

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A water tank has a square base of area 5 square meters. Initially the tank contains 70 cubic meters. Water leaves the tank, star

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Answer:

$9.2\ \text{m}$

Step-by-step explanation:

$b$ = Surface area of base = 5 square meters

Volume of water in tank = 70 cubic meters

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3 years ago

There are some goats, cows, and sheep on a farm. 2/5 of the animals were goats. There are 3 times as many sheep as cows. If ther

svetlana [45]

Answer:

180

Step-by-step explanation:

First thing to do is to get all the animals in terms of cows, since that is our main unknown. All the other animals' numbers are based on cows. So let's call cows "x". Then sheep is 3 times the number of cows, so sheep is 3x. The number of goats is 45 more than the number of cows, so goats is x + 45. Let's say, for the sake of ease, that the number of animals is "a".

Here's what we have so far:

# of animals: a

# of cows: x

# of sheep: 3x

# of goats: x + 45

We are told that 2/5 of the animals are goats. In an equation, that is:

2/5 (animals) = goats, where the word "of" means to multiply, and the word "are" is the equals sign. Filling in from our key above:

$\frac{2}{5}a=x+45$

That says that 2/5 of the animals are goats when goats is x + 45.

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$\frac{3}{5}a=x + 3x$ .

Let's go back to the first equation and get rid of the fraction by multiplying everything by 5. When we do that we get

2a = 5(x + 45) so

2a = 5x + 225

Now let's get rid of the fraction in the second equation by multiplying everything by 5. When we do that we get

3a = 5(x + 3x) or

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$a=\frac{20}{3}x$

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$\frac{40}{3}x-5x=225$ . Get rid of the fraction here by multiplying everything by 3:

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That means that there are 27 cows.

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Answer:

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Step-by-step explanation:

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2 years ago

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Hi,

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