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leva [86]
2 years ago
7

What's the answer to this?

Mathematics
1 answer:
morpeh [17]2 years ago
5 0
1: given 2: distributive property 3: multiplication property of equality 4: addition property of equality 5: division property of equality
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1. Henri cut a rope into two pieces with lengths having a ratio of 5 to 2. The shorter piece is
ruslelena [56]

The length of the shorter rope is 20 cm.

<h3>How to find the original length of the rope using ratio?</h3>

He cut a rope into two pieces with lengths having a ratio of 5 to 2.

The shorter piece is 70 cm long.

The length of the original rope can be calculated as follows:

The ratio of the length of the rope is as follows;

5 : 2

let

x = length of the original rope

Therefore,

length of shorter piece = 2 / 7 × 70

length of shorter piece = 2 / 7 × 70

length of shorter piece =  140 / 7

length of shorter piece = 20 cm

Therefore, the length of the shorter rope is 20 cm.

learn more on ratio here: brainly.com/question/15418103

#SPJ1

8 0
2 years ago
Write each expression using exponents:<br> 4*4*4*4*4
erastova [34]

Answer:4^6

Step-by-step explanation:

<em>The number of times a term is multiplied is the exponent you use.</em>

<em></em>

<em>In this problem </em>

<em>4 is multiplied 6 times.</em>

<em></em>

<em>Therefore: 4*4*4*4*4*4=4^6</em>

7 0
2 years ago
What is 2+6 100 points the answer is 8 right?
Elan Coil [88]

Answer:

yes it is 8

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
How to solve 45y to the second power plus 15y minus 10 ?
Lerok [7]

Answer:

Either y =\frac{-2}{3} or, y =\frac{1}{3}

Step-by-step explanation:

We have to solve the following quadratic equation  

45y² + 15y - 10 =0

Now, dividing both sides with 5 we get, 9y² + 3y -2 =0

Hence, to solve the above equation we have to factorize the left-hand part of the equation.

So, 9y² + 3y - 2 =0

⇒ 9y² +6y -3y -2 =0

⇒ (3y +2) (3y -1 ) =0

⇒ Either (3y +2) =0 or (3y -1) =0

⇒ Either y =\frac{-2}{3} or, y =\frac{1}{3} (Answer)

4 0
3 years ago
2 vertical buildings are 42 metres apart and the shorter building is 135m high. The angle of elevation from the top of the short
ipn [44]

Answer:

Step-by-step explanation:

base=42 m

height=h=?

base angle θ=60°

tan 60=h/42

h=42tan 60=42√3≈72.75 m

height of taller building=135+42√3 m≈135+72.75≈207.75 m≈208 m

6 0
2 years ago
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