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4 years ago

Allen subtracts (11x + y) from (ax + 6y). His correct answer is − 10x + 5y. What is the value of a?

Mathematics

2 answers:

marusya05 [52]4 years ago

5 0

1 if you have it on Usatestprep

Gemiola [76]4 years ago

4 0

Answer:

Answer is 1

Step-by-step explanation:

(ax=6y)-(11x+y)=-10x+5y

ax-11x=-10x

a=1

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5/6(-8/15) plz help

Likurg_2 [28]

Answer: -40/90 I think

Step-by-step explanation:

5x8= 40

6x15=90

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3 years ago

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Answer:

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3 years ago

A large drink costs 50 cents more than a small drink. write an expression for the total cost of 3 small drinks and 2 large drink

Talja [164]

Let x is the small drink
x +0.5 is the large drink (cause large drink cost 50 cents more than small drink)

<span>3 small drinks and 2 large drinks</span> should be:
3x + 2(x +0.5)
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4 years ago

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6 0

3 years ago

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A man on the deck of a ship is 14 ft above water level. He observes that the angle of elevation of the top of a cliff is 40 degr

topjm [15]

Answer:

The distance of the ship from the cliff is 38.465 feet

The height of the cliff is 46.28 feet.

Step-by-step explanation:

As shown in the figure attached $d$ is the distance from the ship to the cliff, and $h$ is the height of the cliff from the ship.

From trigonometry

$tan(20^o)=\frac{14}{d}$

$d=\frac{14}{tan(20^o)}=38.465\:feet.\\\\\boxed{d=38.465ft}$

This is the distance to the cliff.

And we have

$tan(40^o)=\frac{h}{d}$

since $d=38.465ft$

$h=d*tan(40^o)=38.465*tan(40^o)=32.28ft$

Ad the height of the cliff is just $14+h$ or

$32.28+14=46.28 ft\\\\\boxed{height=46.28ft}$

Which is the height of the cliff.

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4 years ago