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3 years ago

6

If a, b, c, and d are four different digits from 1 to 9, inclusive, then what's the largest possible value for the decimal a.b +

c.d ?

1 answer:

Shalnov [3]3 years ago

6 0

I think the answer would be 10-18.

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Stels [109]

Answer:

The maximum speed of Hal's airplane in still air is:

$v= 250\ miles/h$

The speed of the wind

$c = 50\ miles/h$

Step-by-step explanation:

Remember that the velocity v equals the distance d between time t.

$v=\frac{d}{t}$ and $t*v=d$

The distance that Hal travels when traveling with the wind is:

$(2\ hours)(v + c) = 600$ miles

Where v is the speed of Hal and c is the wind speed.

The distance when traveling against the wind is:

$(3\ hours)(v-c) = 600$ miles

Now we solve the first equation for v

$(2)(v + c) = 600$

$2v + 2c = 600$

$2v= 600-2c$

$v= 300-c$

Now we substitute the value of v in the second equation and solve for c

$3((300-c)-c) = 600$

$3(300-2c) = 600$

$900-6c = 600$

$-6c = 600-900$

$-6c = -300$

$6c = 300$

$c = 50\ miles/h$

Then:

$v= 300-(50)$

$v= 250\ miles/h$

The maximum speed of Hal's airplane in still air is:

$v= 250\ miles/h$

The speed of the wind

$c = 50\ miles/h$

7 0

3 years ago

PLSS HELP IF YOU TURLY KNOW THISS

dangina [55]

Answer:

$\frac{0.3x - 2.1}{3} = 0.4 \\ 0.3x - 2.1 = 0.4 \times 3 \\ 0.3x - 2.1 = 0.12 \\ 0.3 x = 0.12 + 2.1 \\ 0.3x = 2.22 \\ x = \frac{2.22}{0.3} \\ x = 7.4$

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3 years ago

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HELPPP!!!!!!!!!!!!!!!!! What’s the slope of line. (-6,19) (8,19)

soldi70 [24.7K]

Answer: m=o

Step-by-step explanation:

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3 years ago

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What is 11/12 – 3/8 <br> A) 2 <br> B) 1/2 <br> C) 13/24 <br> D) 21/32

Pepsi [2]

Hey! Answer to this would be 13/24.

4 0

3 years ago

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Describe the relationship between the number of at bats and the number of hits using the data in the scatter plot.

Fynjy0 [20]

Answer:

The number of at bats increases, the number of hits also increases

Step-by-step explanation:

Given

See attachment for graph

Required

Relationship between the plots

From the attached graph, we can observe that there is an upward trend in the graph; in other words, when the number of at bats increases, the number of hits also increases

Hence, the relationship between them is that: an increment in at bats causes an increment in hits.

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3 years ago