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bulgar [2K]
3 years ago
10

You can use this rule to work out the total charge for hiring a cement mixer.

Mathematics
1 answer:
Cloud [144]3 years ago
7 0
The answer is 58 because you multiply 7 by 4 and add the 30
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A team won 6 hockey matches and lost 9 matches. what per cent of the matches did the team win​
Mama L [17]

Answer:

66.67%

Step-by-step explanation:

total matches = 9

matches won = 6

percentage = matches won*100/ total matches

percentage = 600/9

= 66.67%

7 0
3 years ago
Read 2 more answers
Data on the blood cholesterol levels of 6 rats give mean = 85, s= 12. A 95% confidence interval for the mean blood cholesterol o
lana [24]

The <em><u>correct answer</u></em> is:

c)75.4 to 94.6

Explanation:

The formula for a confidence interval is:

\mu \pm z*(\frac{\sigma}{\sqrt{n}}),

where μ is the mean, z is the z-score associated with the level of confidence we want, σ is the standard deviation, and n is the sample size.

Our mean is 85, our standard deviation is 12, our sample size is 6, and since we want 95% confidence, our z-score is 1.96:

85\pm 1.96(\frac{12}{\sqrt{6}})=85\pm 9.6=85-9.6, 85+9.6=75.4, 94.6

4 0
3 years ago
Read 2 more answers
A company makes $300 each month selling its products to the public. The company has $435 in its bank account. How many months of
Galina-37 [17]

Answer:

300x = 435, given x represents the amount of months.

So 435 divided by 300 is 1.45 months for that amount.

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Pls help me fill this one out
Sedbober [7]

Answer:

x=1

Step-by-step explanation:

Just look at the x axis and see where the coordinate lands on and it's 1

7 0
2 years ago
What is the equation of a line that passes through (1,2) and is perpendicular to the given line?​
fredd [130]

Answer:

Perpendicular lines have opposite-reciprocal slopes, so the slope of the line we want to find is 1/2. Plugging in the point given into the equation y = 1/2x + b and solving for b, we get b = 6.  the equation of the line is y = ½x + 6.

Step-by-step explanation:

found off google

6 0
3 years ago
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