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elixir [45]
4 years ago
7

A model is 4.2 feet tall, the plywood used to make the model is 0.6 inch thick. How many sheets of plywood to make the model?

Mathematics
1 answer:
nadya68 [22]4 years ago
4 0
Answer=84 sheets

4.2feet
1 foot=12 inches

4.2*12=<span>50.4inches

50.4/0.6=</span><span>84 sheets</span>
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An angel measures 26°. What is the measure of its complement
Liula [17]
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so

26+complement=90
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4 years ago
How to solve this equation and check it. a - 2.5 = 4.5?
Bezzdna [24]

Answer:

Step-by-step explanation:

a - 2.5 = 4.5

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5 0
4 years ago
Student Council held a bake sale to raise money for the local food pantry. They sold a total of 40 items which included pies and
Sophie [7]

Answer: 18 pies, 22 cakes

Step-by-step explanation:

Let the number of pies sold be represented by p.

Let the number of cakes be represented by c.

The information in the question can then be represented in an equation as:

p + c = 40 ........ i

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Multiply equation i by 10

Multiply equation ii by 1

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Subtract iv from iii

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5 0
3 years ago
3^4x-5=(1/27) PLEASE HELP I AM IN TEARS
g100num [7]
 x = 136/2187 = 0.062

Rearrange:

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation : 

                     3^4*x-5-(1/27)=0 

<span>Step by step solution :
</span><span>Step  1  :</span> 1 Simplify —— 27 <span>Equation at the end of step  1  :</span><span> 1 (((34) • x) - 5) - —— = 0 27 </span><span>Step  2  :</span>

<span>Equation at the end of step  2  :</span><span> 1 ((34 • x) - 5) - —— = 0 27 </span><span>Step  3  :</span>Rewriting the whole as an Equivalent Fraction :

<span> 3.1 </span>  Subtracting a fraction from a whole 

Rewrite the whole as a fraction using <span> 27 </span> as the denominator :

81x - 5 (81x - 5) • 27 81x - 5 = ——————— = —————————————— 1 27

<span>Equivalent fraction : </span>The fraction thus generated looks different but has the same value as the whole 

<span>Common denominator : </span>The equivalent fraction and the other fraction involved in the calculation share the same denominator

Adding fractions that have a common denominator :

<span> 3.2 </span>      Adding up the two equivalent fractions 
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Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:

(81x-5) • 27 - (1) 2187x - 136 —————————————————— = ——————————— 27 27 <span>Equation at the end of step  3  :</span> 2187x - 136 ——————————— = 0 27 <span>Step  4  :</span>When a fraction equals zero :<span><span> 4.1 </span>   When a fraction equals zero ...</span>

Where a fraction equals zero, its numerator, the part which is above the fraction line, must equal zero.

Now,to get rid of the <span>denominator, </span>Tiger multiplys both sides of the equation by the denominator.

Here's how:

2187x-136 ————————— • 27 = 0 • 27 27

Now, on the left hand side, the <span> 27 </span> cancels out the denominator, while, on the right hand side, zero times anything is still zero.

The equation now takes the shape :
   2187x-136  = 0

Solving a Single Variable Equation :

<span> 4.2 </span>     Solve  :    2187x-136 = 0<span> 

 </span>Add  136  to both sides of the equation :<span> 
 </span>                     2187x = 136 
Divide both sides of the equation by 2187:
                     x = 136/2187 = 0.062 

One solution was found :                  <span> x = 136/2187 = 0.062</span>
8 0
3 years ago
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