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3 years ago

Pleaseeeeeee help im struggling so much

Mathematics

2 answers:

Snowcat [4.5K]3 years ago

7 0

X=±√121=±11 is your final answer. Hope it help!

Mkey [24]3 years ago

4 0

So we need to find the square root of 121. so in the first box, you put 121. Now what number multiplied times itself equals 121? 10 x 10 = 100, and 12 x 12 = 144. So 121 is 11 x 11. 11 goes in the 2nd box.

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Driving to your friend's house, you travel at an average rate of 35 miles per hour. On your way home, you travel at an average r

kenny6666 [7]

Answer:

14 miles

Explanation:

The relation that will be used to solve this problem is:

$Distance = Velocity*Time$

which can be rewritten as:

$Time = \frac{Distance}{Velocity}$

Assume that:

Distance from your house to your friend's house is d

Time taken from your house to your friend's house is t₁

Time taken from your friends house to your house is t₂

1- From your house to your friend's house:

Average rate = 35 miles/hour

Therefore:

$t_{1} = \frac{d}{35}$

2- From your friend's house to your house:

Average rate = 40 miles per hour

Therefore:

$t_{2} = \frac{d}{40}$

3- Round trip:

We know that the round trip took 45 minutes which is equivalent to 0.75 hours

This means that:

t₁ + t₂ = 0.75 hours

$\frac{d}{35}+\frac{d}{40}=0.75\\ \\\frac{40d + 35d}{1400}=0.75\\ \\\frac{75d}{1400}=0.75\\ \\ 1050 = 75d\\ d=14 miles$

Hope this helps :)

3 0

4 years ago

a shopkeeper bought a pair of shoes at sh 480 he wished to make a profit of 30 percent after selling what was his marked price

tangare [24]

Answer:

624

Step-by-step

480+(480(30%))

=624

3 0

2 years ago

Read 2 more answers

Tina had 33 glasses and Kate had 56 how many they had each

Volgvan

I think you would add all the glasses together which you would then get 89 then you would divide that number by two because we are looking for how much glasses Tina and Kate could both get so 89/2 =44.5 so they would each evenly get 44.5 glasses. I'm sorry I think this is what you were looking for?

7 0

3 years ago

You want to purchase a house in 10 years. You estimate the cost will be $184,500.00. You want to make a 20% down payment and pay

Ilia_Sergeevich [38]

Use the formula of the future value of annuity ordinary and solve for pmt
First deducted the amount of down payment
184,500−184,500×0.20=147,600

Pmt=147,600÷(((1+0.085
÷12)^(12×10)−1)÷(0.085÷12))
=784.53 per month

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3 years ago

There were n signers of the Declaration of Independence. The oldest was Benjamin Franklin, who was y years old. 7 is 10% of y. W

elixir [45]

7 = 10%y
70 = y

70 years old

4 0

4 years ago