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Svetach [21]
3 years ago
12

translate the sentence into an equation and solve it. If 4 times a number is decreased by 5,the result is 19.find the number. th

e equation is ? the number is ?

Mathematics
2 answers:
zalisa [80]3 years ago
6 0
4x-5=19, where x is the missing number
4x=19+5
4x=24
4x/4=24/4
x=6
eduard3 years ago
4 0
4x-5=19
    +5  +5
4x=24
x=6
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jolli1 [7]
There’s 3 7’s in 21 2 times 3 is 6 so the answer is 6.
3 0
2 years ago
Please Help!!!!! <br>If secθ = 4, then sinθ = _____.
KiRa [710]
Knowing that \sec x=\dfrac{1}{\cos x}:

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Using that \sin^2x+\cos^2x=1:

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8 0
3 years ago
Suppose AB = 10 cm, BC = 9 cm, AC = 11 cm, DE = 11 cm, and DF = 9 cm. What else do you need to know to prove that the two triang
Makovka662 [10]
Two triangles must be congruent by SSS when their all sides would be equal.
So, BC = DF
AC = DE
Then, AB = EF = 10

In short, Your Answer would be Option B

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8 0
3 years ago
Find the cumulative frequency
aleksandrvk [35]

We get the cumulative frequency as:

                3

                7

               13

               22

               29

               36

               37

We are given the data:

Daily Low(°F)    Frequency

 35 - 39                    3

 40 - 44                    4

 45 - 49                    6

 50 - 54                    9  

 55 - 59                    7

 60 - 64                    7

 65 - 69                     1

We have to find the cumulative frequency of the data.

We will do this by adding the data values of previous interval.

Daily Low(°F)    Frequency     cumulative frequency

 35 - 39                    3                              3

 40 - 44                    4                              7

 45 - 49                    6                             13

 50 - 54                    9                             22

 55 - 59                    7                             29

 60 - 64                    7                             36

 65 - 69                    1                              37

Therefore, we get the cumulative frequency as:

                3

                7

               13

               22

               29

               36

               37

Learn more about  cumulative frequency here:

brainly.com/question/21807065

#SPJ9

5 0
1 year ago
A scale drawing of a house is 2:9. If the length of the actual kitchen is 18 feet, how long was it in the drawing?
JulsSmile [24]

Answer: 4:18

Work:

2:9

2 <em>inch</em>:9 <em>feet</em>

2 · 9 = 18

2 · 2 = 4

4 <em>inch</em>:18 <em>feet</em>

6 0
2 years ago
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