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anyanavicka [17]
2 years ago
5

Please teach me!

Mathematics
1 answer:
sleet_krkn [62]2 years ago
6 0
I am not 100% but i would think you would set it up as a ratio

93/248 = x/1000

set it up actual / total 

then cross multiply and divide

93x x 1000 then divide by 248

which gives you 375
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what is the inverse of the conditional statement: If my mom has to work, then I babysit my little sister.
madam [21]
The inverse of the conditional statement can be made by negating both the hypothesis and the conclusion

The inverse of ur conditional statement is : If my mom does not have to work, then I will not babysit my little sister.
3 0
3 years ago
Use trigonometry to find the value of x in the picture above.
bagirrra123 [75]

sin(48°) = x / 1200ft. Multiply each side by 1200ft.

1200ft × sin(48°) = x.

x = 891.77 ft.

4 0
3 years ago
In 1998, Cathy's age is equal to the sum of the four digits in the year of her birthday, then how old was Cathy in 1998?
ycow [4]

Answer:

<em>Cathy was born in 1980 and she was 18 years old in 1998</em>

Step-by-step explanation:

<u>Equations</u>

This is a special type of equations where all the unknowns must be integers and limited to a range [0,9] because they are the digits of a number.

Let's say Cathy was born in the year x formed by the ordered digits abcd. A number expressed by its digits can be calculated as

x=1000a+100b+10c+d

In 1998, Cathy's age was

1998-(1000a+100b+10c+d)

And it must be equal to the sum of the four digits

1998-(1000a+100b+10c+d)=a+b+c+d

Rearranging

1998=1001a+101b+11c+2d

We are sure a=1, b=9 because Cathy's age is limited to having been born in the same century and millennium. Thus

1998=1001+909+11c+2d

Operating

88=11c+2d

If now we try some values for c we notice there is only one possible valid combination, since c and d must be integers in the range [0,9]

c=8, d=0

Thus, Cathy was born in 1980 and she was 18 years old in 1998. Note that 1+9+8+0=18

5 0
3 years ago
Can you please help me with the sheet??
OLga [1]
1. 25 minutes
2. 41 minutes
3. 21 wheels
4. 7
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7 0
2 years ago
Read 2 more answers
Slope of (-2,5)and(7,8)
grigory [225]

Answer:

The slope is 1/3

Step-by-step explanation:

8 – 5 = 3

_____________

7 – -2 = 9

3/9=1/3

4 0
3 years ago
Read 2 more answers
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