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3 years ago

7

Jack has two square based pyramids that are the same size.he stick the square faces togather to make a new 3-d shape.how many fa

ces and how many edges does his new 3-d shape have?

1 answer:

RideAnS [48]3 years ago

6 0

I think it's
8faces and 6edges?

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Kyle is having a party he has 43 hot dogs there will be 8 people at his party how many hotdogs will each person get

Brrunno [24]

each person will get 5 hot dogs.

Step-by-step explanation:

Total number of Hot dogs =43

Total number of people at party= 8

Each person will get hot dogs= $\frac{Total number of Hot dogs}{Total number of people at party }$

Each person will get hot dogs= $\frac{43}{8}$

Each person will get hot dogs= 5.37 or ≈ 5

So, each person will get 5 hot dogs.

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3 years ago

If q→ p is true, then ~ p → ~ q is _____ true. always sometimes never

Bogdan [553]

Answer: always

Step-by-step explanation:

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3 years ago

If 101! = (99!)x, then x = ?

beks73 [17]

$99!x=101!\ \ \ /:99!\\\\x=\frac{101!}{99!}\\\\x=\frac{99!\cdot100\cdot101}{99!}\\\\x=100\cdot101\\\\x=10\ 100$

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3 years ago

What is the sum of two consecutive even integers divided by four is 189.5?

mixas84 [53]

Let us denote the smaller even integer by $N$ .
Then, the next even integer must be $N+2$ .

To verify, set $N$ as any even number, say $174$ .
Then, the next even integer must be 2 more than this number, i.e. $174+2=176$ .

The sum of these two consecutive even integers can be expressed as:
                                    $N+(N+2)=2N+2$

We are told that this sum divided by four is 189.5, i.e.
                                     $(2N+2)\div4=189.5$

Multiplying both sides by 4 will reverse the division:
     $(2N+2)\div4\times4=189.5\times4$
     $(2N+2)\times1=758$

Subtracting 2 from each side will reverse the addition:
     $2N+2-2=758-2$
     $2N=756$

Dividing both sides by 2 will reverse the multiplication:
     $2N\div2=756\div2$
     $N=378$

Therefore, the two consecutive integers must be 378 and 380.

Check this:
     $(378+380)\div4=758\div4=189.5$

3 0

3 years ago

I need help in learning how to solve this equation using substitution:

Tomtit [17]

Answer:

x=3, z=-1, y=6

Step-by-step explanation:

you need to make the coefficients of each variable equal to each other then subtract 2 equations.

this one: multiply -4 in 1st

4x+4y+4z=32

-4x+4y+5z=7

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8x+0-z=25

we have 2 equations with 2 variables now

2x+2z=4

8x-z=25

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2 years ago