3 years ago

Mariella typed 123 words in 3 minutes.

Mathematics

1 answer:

miv72 [106K]3 years ago

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If a+ar =b+r the value of an item of b and r can be expressed as

Dennis_Churaev [7]

$a+ar=b+r\\
a(1+r)=b+r\\
a=\dfrac{b+r}{1+r}$

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3 years ago

Jolly had some burgers. he ate two burgers and then he divided the remaining burger amongst his friends. he has five friends. ev

dexar [7]

Jolly had 12 burgers from the start.

if his five friends ate 2, you'd multiply that and get 10, then you add how many Jolly ate, which is 12.

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3 years ago

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An escalator from the ground floor to the second floor of a department store is 110 ft long and 32 ft vertical. What is the esca

grigory [225]

Answer: 16.91°

Step-by-step explanation:

1. You can draw a right triangle as you can see in the figure attached.

2. Then you can calculate the angle of elevation (α) as following:

$\alpha=arcsin(\frac{opposite}{hypotenuse})$

Where:

$opposite=32\\hypotenuse=110$

3. Now you must substitute these values. Then, the angle of elevation is:

$\alpha=arcsin(\frac{32}{110})$

$\alpha=16.91\°$

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3 years ago

29+18+21 justify your steps

zhannawk [14.2K]

Add 29 and 18 first to get to get 47 then add 47 and 21 to get your final answer that is 68

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3 years ago

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Mya is paid $960 a week to walk 20 dogs. If she is paid the same amount to walk each dog , what is the cost to walk one dog each

Sveta_85 [38]

We know that

<span>Mya is paid $960 a week to walk 20 dogs
then
</span>$960/20 dogs-----> $48 for one dog each week

the answer is
the cost to walk one dog each week is $48

7 0

2 years ago