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cupoosta [38]
3 years ago
7

1. k/3=3/9 A)1 B)3 C)9 D)27 2.1/

Mathematics
2 answers:
NARA [144]3 years ago
7 0
Hello there.

<span>1. k/3=3/9

</span><span>A)1</span>
postnew [5]3 years ago
3 0
Cross multiply so you have kx9 = 9k and 3x3 = 9 so 9k = 9, now you divide by 9 and you get k=1
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Lincoln High schools basket ball team won the regional playoffs scoring a total of 60 points, not including free throws. The tea
CaHeK987 [17]

Answer: 18

Step-by-step explanation:

Let x be the number of 2 point baskets made and y be the number of 3 point baskets made

:

1) x + y = 26

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2) 2x + 3y = 60

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solve equation 1 for x and substitute in equation 2

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x = 26 - y

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2(26 - y) +3y = 60

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52 -2y +3y = 60

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y = 8

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x = 26 - 8 = 18

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The team made 18 2-point shots

5 0
3 years ago
Which statement is correct?
Digiron [165]
The answer is b. All numbers are natural numbers
4 0
3 years ago
Which of the following statements is true if m∠E = m∠Y and m∠F = m∠X?
mars1129 [50]

Answer:

segment FE over segment XY equals segment EG over segment YZ equals segment GF over segment ZX

Step-by-step explanation:

see the attached figure to better understand the problem  

we know that  

If m∠E = m∠Y and m∠F = m∠X  

then  

Triangles EFG and YXZ are similar by AA Similarity Theorem  

Remember that  

If two figures are similar, then the ratio of its corresponding sides is proportional and its corresponding angles are congruent  

In this problem  

The corresponding sides are  

FE and XY  

EG and YZ  

GF and ZX  

so therefore  

segment FE over segment XY equals segment EG over segment YZ equals segment GF over segment ZX Firstly , let us learn about trigonometry in mathematics.  

Suppose the ΔABC is a right triangle and ∠A is 90°.  

sin ∠A = opposite / hypotenuse

cos ∠A = adjacent / hypotenuse

tan ∠A = opposite / adjacent

Let us now tackle the problem!  

A similar triangle has the same angle, in other words the triangle has the same shape but different sizes.  

From the figure in the attachment , we can conclude that:  

m∠E = m∠Y  

m∠F= m∠X  

m∠G = m∠Z  

∴ ΔEFG ~ ΔYXZ  ( ΔEFG is similar to ΔYXZ )    

Because of the similarity , then:  

FE : XY = EG : YZ = GF : ZX  

Conclusion:

ΔFG is similar to ΔYXZ.  

Segment FE over segment XY equals segment EG over segment YZ equals segment GF over segment ZX , i.e:    

Keywords: Sine , Cosine , Tangent , Opposite , Adjacent , Hypotenuse , Triangle , Fraction , Lowest , Function , Angle

3 0
3 years ago
Read 2 more answers
Item 9 a flight averages 460 miles per hour. the return flight averages 500 miles per hour due to a tailwind. the total flying t
Ksenya-84 [330]

Let us say that the variables for flight is designated by 1, while the return flight by 2, since the distance travelled are equal, therefore:

v1 t1 = v2 t2

or

460 t1 = 500 t2

 

Since t1 + t2 = 4.8, therefore: t1 = 4.8 – t2

460 (4.8 – t2) = 500 t2

2208 – 460 t2 = 500 t2

960 t2 = 2208

t2 = 2.3

 

t1= 4.8 – t2 = 4.8 – 2.3

t1 = 2.5

 

Answer:

The flight took 2.5 hours while the return flight took 2.3 hours.

8 0
3 years ago
Two lengths are in the ratio 2:5. The second length is 75 cm. Find the first length.​
vichka [17]

Answer:

30 cm

Step-by-step explanation:

2 * 15: 5 * 15

    30:75

7 0
3 years ago
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