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nata0808 [166]
3 years ago
13

the computer lab at a high school ordered 26 packages of cd's . there were 50 cd's in each package. how many cd's did the comput

er lab order?
Mathematics
1 answer:
umka2103 [35]3 years ago
3 0
To find your answer multiply:

26x50=?

26x50= 1300

?= 1300

Hope I helped:)


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two crates contain Apple's, pears and oranges. there are 184 apples and pears in crate one and 248 apples and oranges in the sec
Ray Of Light [21]

Answer: There are 152 apples.

The explanation is shown below:

- You need to write the following three equations, where a is the the number of apples, p is the number of pears and o is the number of oranges:

1) a+p=184

2) a+o=248

3) o=3p

-  You must substitute the equation 3) into the equation 2):

 a+3p=248

- Now, you need to solve for p in the equation 1) and then you must substitute it into a+3p=248:

p=184-a

a+3(184-a)=248

- Solve for a, as following:

a+552-3a=248\\-2a=-304\\a=\frac{-304}{-2}\\a=152

- Therefore, there are 152 apples.

7 0
3 years ago
A baseball is hit into the​ air, and its height h in feet after t seconds is given by h(t)= -16t^2+128t+2. The height of the bas
tankabanditka [31]

Answer:

\large \boxed{\sf \ \text{2 feet, 4 seconds, 258 feet } \ }

Step-by-step explanation:

Hello,

To know the height of the baseball when it is hit we have to compute h(0), as t = 0 is when the baseball is hit into the air.

h(0)=-16\cdot 0^2+128 \cdot 0+2=2

So, the answer is <u>2 feet.</u>

<u />

h(x) is a parabola which can be written as ax^2+bx+c, it means that the vertex is the point (-b/2a,h(-b/2a)).

The baseball reached its maximum height after

   \dfrac{-b}{2a}=\dfrac{-128}{-2*16}=\boxed{4 \text{  seconds}}

And the maximum height of the baseball is h(4).

h(0)=-16\cdot 4^2+128 \cdot 4+2=-256+512+2=\boxed{258 \ \text{feet}}

Hope this helps.

Do not hesitate if you need further explanation.

Thank you

8 0
3 years ago
If 10^x = 5, what is x?
Valentin [98]

Answer:

x=0.69897009

Step-by-step explanation:

expand by logarithms

10^x=5

=log(10^x)=log(5)

=x log(10)=log (5)

log base 10 of 10 is 1

x.l =log(5)

multiple bothside by 1

x=log(5)

x=0.6989709

6 0
3 years ago
I need help with this math today
Genrish500 [490]

Answer:

120 + 10x

or

10(12 + x)

Step-by-step explanation:

5 0
3 years ago
Please help, I really struggle with this! anythibg will help​
DaniilM [7]
Answers:
1) 3/8 + 3/6 = 7/8

3/8 + 3/6
Simplify

3/4 + 1/2
Transform the expression

3 + 4/8
Calculate

=7/8
_____________

2) 5/9 + 1/3 = 8/9

5/9 + 1/3
Transform the expression

5 + 3/9
Calculate

= 8/9
_____________

3) 5/12 + 7/8 = 31/24

5/12 + 7/8
Transform the expression

10 + 21/24
Calculate

= 31/24
_____________

4) 7/9 - 1/6 = 11/18

7/9 - 1/6
Transform the expression

14 - 3/18
Calculate

= 11/18
_____________

5) 4 2/5 + 2 1/5 = 33/5

4 2/5 + 2 1/5
Convert the number

22/5 + 11/5
Calculate

22 + 11/5
Calculate

= 33/5
_____________

6) 5 3/8 + 2 7/8 = 33/4


5 3/8 + 2 7/8
Convert the number

43/8 + 23/8
Calculate

43 + 23/8
Calculate

= 66/8
7 0
2 years ago
Read 2 more answers
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