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3 years ago

when does it makes sense to use similar triangles to measure the height and length of objects in real life?

1 answer:

6 0

When determining the height of an object like putting a high pole for a fence in ur yard. Or better yet when u cut down a tree and u wanna figure how much space u need to cur it down so u don't hit a house or someone else's property

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Dan’s dog-walking job pays $15 per hour. His job as a car-wash attendant pays $400 each week. Dan wants to know how many hours h

Rus_ich [418]

Answer:

an needs to walk dogs for at least 9 hours in order to earn more than $520 a week.

Step-by-step explanation:

Since his car wash attendant job pays $400 a week then you can subtract that from your final revenue.

$520-$400=$120

Now, to find out how many hours he has to walk dogs for in order to earn more than $520, you need to know some basic multiplication so...

$15×8=$120

...but he needs to earn MORE than $520 so...

$15×9=$135

$400+$135=$535.

7 0

3 years ago

Two stores offer customers bulk DVD rates. Best Buy sells 6 CDs for $63 and Target sells 8 CDs for $96. Write the unit price for

Andrew [12]

Answer:

96÷8=12 so it wold be $12 per CD AND 63÷6=10.5 there for making the CD $10.5 making Best Buy your answe

4 0

3 years ago

What expression is equivalent to (3x^2+4x-7)(x-3)

vodka [1.7K]

Answer:

$\arge\boxed{B.\ (3x^2+4x-7)(x)+(3x^2+4x-7)(-3)}$

Step-by-step explanation:

$\text{The distributive property:}\ a(b+c)=ab+ac.\\\\(3x^2+4x-7)(x-3)=(3x^2+4x-7)(x)+(3x^2+4x-7)(-3)$

5 0

3 years ago

Geoff and Max are college roommates. Geoff can clean their apartment in 2.5 hours and Max can clean their apartment in 3.25 hour

Anestetic [448]

Answer: 1.41 hours

Step-by-step explanation:

Geoff: 2.5 hours = 1 job

Max: 3.25 hours = 1 job

Together: $\frac{x}{2.5} + \frac{x}{3.25} = 1 job$

⇒ $(3.25)(2.5)\frac{x}{2.5} + (3.25)(2.5)\frac{x}{3.25} = (3.25)(2.5)1$

⇒ 3.25x + 2.5x = 8.125

⇒ 5.75x = 8.125

÷5.75 ÷5.75

x = 1.413

6 0

2 years ago

From $16 to $4 percent

Vlad1618 [11]

Answer:

Im sorry but thats not a proper question

Step-by-step explanation:

4 0

3 years ago