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klasskru [66]
3 years ago
8

A - 48 = 18 What is a?

Mathematics
2 answers:
yan [13]3 years ago
8 0

Answer:

A=66

Step-by-step explanation:

Sidana [21]3 years ago
5 0

Answer:

a=<u>66</u>

Step-by-step explanation:

You do an inverse operation to find your answer, in this case it is addition, so you add 48 and 18 to get 66!

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Effie earns $26 for babysitting and $45 mowing lawns she spends $12 on lunch how much money does Effie have now
Goshia [24]

Answer:

yea prob

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
−7x−6y=2<br> 7x+4y=−6<br> solve for x and y
ikadub [295]

Answer:

\mathrm{The\:solutions\:to\:the\:system\:of\:equations\:are:x=-2,\:y=2}

Step-by-step explanation:

\begin{bmatrix}-7x-6y=2\\ 7x+4y=-6\end{bmatrix}

\mathrm{Substitute\:}x=-\frac{2+6y}{7}

\begin{bmatrix}7\left(-\frac{2+6y}{7}\right)+4y=-6\end{bmatrix}

\begin{bmatrix}-2-2y=-6\end{bmatrix}

\mathrm{For\:}x=-\frac{2+6y}{7}

\mathrm{Substitute\:}y=2

x=-\frac{2+6\cdot \:2}{7}\\\\x=-2

5 0
2 years ago
Translate the sentence into an equation. Four more than the quotient of a number and 8 is 9. Use the variable y for the unknown
Virty [35]
Equation : 4+( y/8) = 9
8 0
3 years ago
A random sample of 70 printers discovered that 25 of them were being used in small businesses. find the 95% limit for the popula
kvasek [131]

Answer:

The sample proportion of printers used in small business is:

\hat{p}=\frac{25}{70}=0.3571

The 95% confidence interval for the population proportion of printers that are used in small businesses is:

\hat{p} \pm z_{\frac{0.05}{2}} \sqrt{\frac{\hat{p}(1-\hat{p})}{n} }

Where:

z_{\frac{0.05}{2}}=1.96 is the critical value at 0.05 significance level

\therefore 0.3571 \pm 1.96 \sqrt{\frac{0.3571(1-0.3571)}{70} }

         0.3571 \pm 0.1122

         \left ( 0.3571 - 0.1122, 0.3571 + 0.1122 \right)

         \left(0.245,0.469 \right)

Therefore, the 95% confidence interval for the population proportion of printers that are used in small businesses is (0.245 , 0.469)



7 0
3 years ago
PLEASE ANSWER THIS ASAP I WILL MARK YOU THE BRAINLIEST
Amanda [17]

Answer:

47% and 45%

Step-by-step explanation:

please mark brainiest

5 0
3 years ago
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