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xz_007 [3.2K]
2 years ago
6

3 8 B. Maria bought 13 pounds of nails for a carpentry project. She ended up with pound of nails when she finished the project.

a. Write an equation that can be used to determine how much of the 13 pounds of nails Maria used
I'm looking for a equation.​
Mathematics
1 answer:
Aleks [24]2 years ago
8 0

Step-by-step explanation:

let 1 pound of nail = x

so, the carved out waste nail will be = 12x

total nails = 13x

so the equation is =

13x - 12x = x

OR

x + 12x = 13x

Or

13x - x = 12x

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Answer:

No ;

Step-by-step explanation:

Given ;

s2 = 10 ; n2 = 10 ; s1 = 12 ; n1 = 12

Hypothesis :

H0 : σ1² = σ2²

H1 : σ1² ≠ σ2²

The test statistic :

Ftest = s1² / s2² = 12² / 10² = 144 / 100 = 1.44

The Pvalue using the Pvalue from Ftest calculator :

Numerator df = 12 - 1 = 11

Denominator df = 10 - 1 = 9

Pvalue = 0.2969

At α = 0.1

If Pvalue > α ; Fail to reject H0

0.2969 > 0.1 ; Hence, we fail to reject the Null

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3 years ago
Rp+s=t in terms of r, s,and t
expeople1 [14]

Answer:

p=(t-s)/r

Step-by-step explanation:

This is an equation so all we have to do is solve backwards step by step:

rp+s=t

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3 years ago
What should she do next?
s2008m [1.1K]

Answer:

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Step-by-step explanation:

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-8

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Vitek1552 [10]
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hope this helps!
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