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devlian [24]
2 years ago
7

An elevator starts at the 6th floor. It goes up 7 floors twice, and then it goes

Mathematics
2 answers:
seraphim [82]2 years ago
4 0
The second

6+(7×2)-10 = 10
20-(5×3)+12 = 17
kodGreya [7K]2 years ago
3 0
The first elevator starts at 6th floor, and it goes up 7 floor twice, so it's going to be 6+2 x 7=6+14=20

The second elevator starts at 20th, it goes down 5 floor 3 times, then goes up 12 floor, so it's going to be 20-3 x 5+12=20-15+12=5+12=17.

20>17 so it's the first elevator.
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2. ½ of a group of chickens tried to cross the road. Only ¾ of those chickens made it to the other side. What fraction of the or
ArbitrLikvidat [17]
Let me help you visualize this one.

Let's say we have 12 chickens.

OOOOOOOOOOOO

We divide this group in half (1/2 who tried to cross the road.)

OOOOOO

And here, we need to get 3/4 of the 6 left.

3/4 can be represented as 0.75 of 1.

6 times 0.75 equals to 4.5.

OOOOC (Woah, that chicken is split in half!)

What fraction is 4.5 of the original amount?

Well, that's for you to find out! Good luck in solving this question.
3 0
1 year ago
Read 2 more answers
How many solutions does the following equation have? 60z+50-97z=-37z+4960z+50−97z=−37z+49
Tpy6a [65]
Copy question and paste it and it will show up trust
8 0
2 years ago
Rewrite in polar form: x=12.<br><br> I have r=12 sec theta
romanna [79]
To solve this problem you must apply the proccedure shown below:
 1. You have to r<span>ewrite x=12 in polar form. Then, you have:
 12=rCos</span><span>θ
 2. Then, you must solve for r, as following:
 r=12/Cos</span><span>θ
</span> 3. You have that 1/Cosθ=Sec<span>θ, therefore:
</span> r=12(1/Cos<span>θ)
</span> r=12Sec<span>θ
</span> Therefore, as you can see, the answer is: r=12Secθ<span>
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3 0
1 year ago
Read 2 more answers
-6y + 3(12y) = 20(y - 1) + 15 is it true?
xxMikexx [17]

Answer:

y= - 1/2 (negative half) =  -0.5

Step-by-step explanation:

−6y+3(12y)=20(y−1)+15

Multiply 3 and 12 to get 36.

−6y+36y=20(y−1)+15

Combine −6y and 36y to get 30y.

30y=20(y−1)+15

Use the distributive property to multiply 20 by y−1.

30y=20y−20+15

Add −20 and 15 to get −5.

30y=20y−5

Subtract 20y from both sides.

30y−20y=−5

Combine 30y and −20y to get 10y.

10y=−5

Divide both sides by 10

y= -5/10

Reduce the fraction -5/10 = -0.5 to lowest terms by extracting and cancelling out 5 .

5 0
1 year ago
Sinister Stan stole 3 3/4oz of slime from messy Molly, but His evil plans required 6 3/8oz of slime. He stole another 2 3/5 oz o
katrin [286]

Answer:

Sinister Stan needs 1/40 oz more slime for his evil plan.

Step-by-step explanation:

6 3/8-3 3/4-2 3/5 = 51/8-15/4-13/5 = 255/40-150/40-104/40 = 1/40

4 0
2 years ago
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