3 years ago

What is 25 divided by 7 expressed as a mixed number

Mathematics

1 answer:

jek_recluse [69]3 years ago

8 0

The answer to this problem is 3 4/7. :)

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Given that x and y vary inversely and that y is 8 when x is 2, what is the constant of variation, k?

Shtirlitz [24]

Answer:

Step-by-step explanation:

the equation is x = k / y

therefore k = x* y

k = 2*8

k= 16

4 0

3 years ago

Find the coordinates of the midpoint of the segment whose endpoints are H(10, 1) and K(4, 7).

Oliga [24]

The formula of a midpoint of a segment AB:

$A(x_A;\ y_A);\ B(x_B;\ y_B)\\\\M_{AB}\left(\dfrac{x_A+x_B}{2};\ \dfrac{y_A+y_B}{2}\right)$

We have:

H(10; 1); K(4; 7)

substitute:

$M_{HK}\left(\dfrac{10+4}{2};\ \dfrac{1+7}{2}\right)\to M_{HK}\left(\dfrac{14}{2};\ \dfrac{8}{2}\right)\to M_{HK}(7;\ 4)$

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3 years ago

Read 2 more answers

Solve the system of equations by the substitution method

slava [35]

Answer:

x=0.5

y = 10.5

Step-by-step explanation:

y = 3x + 7

y = 5x + 8

3x + 7 = 5x + 8

3x - 5x= 8 - 7

2x = 1

x= 1/2

x=0.5

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3 years ago

Use proportions to solve each of the problems below. Homework Help ✎

Yakvenalex [24]

Answer:

Question 2:

45 pages 700 pages

-------------- = -------------

1 hour X hours

1 x 700= 700

700/ 45= 15 and 5/9

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Question 3:

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3 years ago

Can some one please help me with my math and tell me if it’s correct thanks

crimeas [40]

Yes, looks very correct.

8 0

3 years ago