If the primater of is square garden is 84 feet what is the area of the garden

I don't know how to do this Y=x-7 3x-3y=21

lora16 [44]

You're going to use the substitution method for this.

First, we know that Y = x-7, so we can plug x-7 into everywhere we see Y!

3x - 3(x - 7) = 21

then we simplify

3x - 3x + 21 = 21
^ ^
These cancel out!
So we're left with...

21 = 21

That means that the solution to this equation is all real numbers!

7 0

3 years ago

Using the side lengths determine whether the triangle is acute obtuse or right.

Deffense [45]

Either acute or right i’m sorry if it’s not that helpful i wish you the best tho stay safe

7 0

3 years ago

Given that f(x)= 2/x^2, what is the value of f(x) when x = 2?

Butoxors [25]

Answer:

0.5

Step-by-step explanation:

2/2^2

= 2/4

= 1/2

= 0.5

3 0

3 years ago

)Alex and Lara have $21.00 each to spend at a book fair, where all students receive a 35% discount. They both want to purchase a

STALIN [3.7K]

You take the discount first. Alex is completely right. Laura is if and only if that 110% is really just 10%. So I'll use Alex's method because it is for certain correct.

28.5*35/100 = 9.975 (which is the amount of the discount)

28.5 - 9.975 = 18.525 (which is the amount paid with the discount factored in.)

Now you take 10% of this amount and add it on which gives 18.525 * 10/100=1.825 which is the amount of the tax.

Add this on to the selling price 18.525 + 1.825 = 20.3775 and now is the time to do your rounding.

The cash register will ring up 20.38 which is just under $21.00

Answer: $20.38

6 0

3 years ago

1500 families were surveyed and following data was recorded about their maids at homes.

nika2105 [10]

Explanation:-

Total number of families are surveyed = 1500

Total number of possible outcomes = 1500

Number of part time maids = 860

Number of favourable outcomes to part time maids = 860

Number of only full time maids = 370

Number of favourable outcomes to only full time maids = 370

Number of both type of maids = 250

Number of favourable outcomes to both type of maids = 250

From all families selecting a family randomly is an event then

We know that

Probability of an event =

Number of favourable outcomes/Total number of possible outcomes

1⟩ Probability of getting both type of maids

⇛250/1500

⇛25/150

⇛1/6

Probability of a family has both type of maids= 1/6.

2⟩ Probability of getting Part time maids

= 860/1500

⇛86/150

⇛43/125

Probability of getting Part time maids = 43/125.

3⟩. Number of part time maids =n(P only )=860

Number of only full time maids =n(F only) = 370

Number of both type of maids = n(PnF)= 250

Total number of families are surveyed= n(PUF)

= 1500

number of no maids =

n(PUF)= n(only P)+n(only F)+n(PnF)

= 1500-(860+370+250)

⇛1500-(1480)

⇛20

Number of no maids = 20

Probability of getting no maid = 20/1500

⇛2/150

⇛1/125

Probability of getting no maid = 1/125.

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5 0

2 years ago