All categories

3 years ago

Show me your work please

Mathematics

1 answer:

Crazy boy [7]3 years ago

6 0

B. -6x +11y = 13 that's the answer to your test

You might be interested in

Solve for 1 divided by x equals 3

noname [10]

X = 0.3

1/0.3 = 3

:D hope this helps you

4 0

2 years ago

Read 2 more answers

A shipping company is creating their own shipping boxes. They have created a box with a volume of 800in^3, a helght of 8 inches

Kazeer [188]

Answer:

Length=10 Inches

Width=10 Inches

Step-by-step explanation:

Volume of the box $=800in^3$

Height=8 Inches

Base Perimeter =40 Inches

Volume of a box=lbh

SInce h=8 in, V=800.

Then:

8bl=800

bl=100

$l=\frac{100}{b}$

Base Perimeter=40 Inches

Perimeter of the Base= 2(l+b)

Therefore: 2(l+b)=40

Substituting $l=\frac{100}{b}$

$2(\frac{100}{b}+b)=40\\\frac{100+b^2}{b}=20\\$Cross Multiply\\100+b^2=20b\\b^2-20b+100=0\\$Solving the quadratic equation \\b^2-10b-10b+100=0\\b(b-10)-10(b-10)=0\\(b-10)(b-10)=0\\b-10=0 (Twice)\\b=10 \:Inch$

Recall:

$l=\frac{100}{b}=\frac{100}{10}\\l=10 Inch$

Therefore:

Length=10 Inches

Width=10 Inches

8 0

2 years ago

of the 125 guests invited to a wedding ,104 attended the wedding .What percent of the invited guests attended the wedding

pashok25 [27]

$\frac{104}{125} =\frac{104\times8}{125\times8}=\frac{832}{1000}$

832/1000 = 0.832 = 0.832 * 100% = 83.2%

83.2% of the invited guests attended the wedding.

5 0

3 years ago

Which economic Indicator measures inflation? A. GDP ОВ. СРІ C. unemployment rate

lesya [120]

Answer:

B. CPI

Step-by-step explanation:

3 0

3 years ago

A store owner is interested in opening a second shop. She wants to estimate the true average daily revenue of her current shop t

Alex

Every confidence interval has associated z value. As confidence interval increases so do the z value associated with it.
The confidence interval can be calculated using following formula:
$\overline{x} \pm \frac{zs}{\sqrt n}$
Where $\overline{x}$ is the mean value, z is the associated z value, s is the standard deviation and n is the number of samples.
We know that standard deviation is simply a square root of variance:
$s=\sqrt{315900.20}=\$562.05$
The confidence interval of 95% has associated z value of 1.960.
Now we can calculate the confidence interval for our income:
$3472.00\pm \frac{1.960\cdot 562.05}{\sqrt{60}}\\ \$3472.00\pm142.22$

6 0

3 years ago