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vovangra [49]
2 years ago
14

Bobby earns $72 for the day and $6 for each delivery he makes. He wants to make $150 in work day. How many deliveries must Bobby

make to reach his goal?
Mathematics
1 answer:
tekilochka [14]2 years ago
7 0

Answer:

He needs to make 13 deliveries

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17 leaves

Step-by-step explanation:

A

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2 years ago
Find the nonpermissible replacement for a in this expression 8/-9a
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The variable a  cannot be zero because that would make -9a = zero  and   8 divided by zero is indeterminate.
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3 years ago
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Find the value of q such that qx^2 -5qx-3 divided by x +2 has a remainder of 4.
Thepotemich [5.8K]

Answer:

Step-by-step explanation:

(qx^2-5qx-3)÷(x+2) gives remainder 14q-3

Equating remanders 14q-3=4

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3 0
3 years ago
Which expression should you simplify to find the 90% confidence interval,
Alex787 [66]

Answer:

0.45 - 1.96\sqrt{\frac{0.45(1-0.45)}{36}}=0.287

0.45 + 1.96\sqrt{\frac{0.45(1-0.45)}{36}}=0.613

And we can conclude at 95% of confidence that the true proportion of interest for this case is between 0.287 and 0.613

Step-by-step explanation:

The estimated proportion of interest is \hat p=0.45

We need to find a critical value for the confidence interval using the normla standard distributon. For this case we have 95% of confidence, then the significance level would be given by \alpha=1-0.95=0.05 and \alpha/2 =0.025. And the critical value is:

z_{\alpha/2}=-1.96, z_{1-\alpha/2}=1.96

The confidence interval for the true population proportion is interest is given by this formula:  

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

Replacing the values provided we got:

0.45 - 1.96\sqrt{\frac{0.45(1-0.45)}{36}}=0.287

0.45 + 1.96\sqrt{\frac{0.45(1-0.45)}{36}}=0.613

And we can conclude at 95% of confidence that the true proportion of interest for this case is between 0.287 and 0.613

8 0
2 years ago
Jahari is making hamburgers for eight party guests. When Jahari weighs all of the hamburger meat, it weighs 5 pounds 8 ounces. J
USPshnik [31]

Answer:

11 oz

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11 ounces for each hamburger patty

explanation:

1 pound(lbs) = 16 ounces(oz)

Convert 5lbs into ounces

5x16 = 80oz

80 + 8 = 88 Add all the ounces together

/8 = Divide by 8 people

11oz each

6 0
3 years ago
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