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3 years ago

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Can someone help me with this

1 answer:

Iteru [2.4K]3 years ago

6 0

To solve this, set up a proportion. 72/21.6=110/x Cross multiply. 72x=2376. Solve x=33

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Please help y’all lots of point

Archy [21]

Answer:

$\mathrm{Option \: C.}$

$x \ne-3, \:4$

Step-by-step explanation:

$F\left(x\right)=\frac{\left(x-4\right)\left(x+2\right)}{\left(x+3\right)\left(x-4\right)}$

$\left(x+3\right)\left(x-4\right)=0$

$x+3=0\\x+3-3=0-3\\x=-3$

$x-4=0\\x-4+4=0+4\\x=4$

3 0

3 years ago

A sign in front of a diving board says, "You must be 40 inches tall to dive." What percentage of this height is 34 inches?

galina1969 [7]

Answer:

85%

Step-by-step explanation:

$\frac{34}{40}*\frac{100}{1}=\frac{3400}{40}=85$

What I did here was multiply 34/40 by 100 to get 3400/40 or 85%.

5 0

3 years ago

The scatterplot shows the relationship between the number of slices of pizza eaten by each member of a football team (x) and the

ivolga24 [154]

Answer:

5.31

Step-by-step explanation:

Given the regression line equation, $y = 10 - 0.67x$ , where,

x = number of slices of pizza eaten

y = number of laps run immediately

Number of laps run by a player who ate 7 slices of pizza can be predicted by plugging in x = 7 into the regression line equation to find y:

$y = 10 - 0.67x$

$y = 10 - 0.67(7)$

$y = 10 - 4.69$

$y = 5.31$

5 0

3 years ago

Find the mean, median, mode, and range for each of the following sets of numbers

Sidana [21]

Answer:

The mean - $45\dfrac{2}{7};$ the median - 35, the mode - 27, the range - 47.

Step-by-step explanation:

Arrange the set of data (31,74,27,58,65,27,35) in ascending order:

27, 27, 31, 35, 58, 65, 74.

The mean is the usual average, so add aal numbers and then divide by the number of numbers:

$\dfrac{27+27+31+35+58+65+74}{7}=\dfrac{317}{7}=45\dfrac{2}{7}.$

The median is the middle value. The middle value in the row 27, 27, 31, 35, 58, 65, 74 is 35.

The mode is the number that is repeated more often than any other, so 27 is the mode.

The largest value in the set is 74, and the smallest is 27, so the range is 74 – 27 = 47.

8 0

3 years ago

A bakery uses ounces of icing for every of a cake. What is the unit rate in ounces of icing per cake?

antoniya [11.8K]

Answer:

Here is a similar question:

A bakery uses 10 1/5 ounces of icing for every 1/4 of a cake. What is the unit rate in ounces of icing per cake.

The unit rate in ounces of icing per cake = 40 4/5 ounces

Step-by-step explanation:

Given:

Ounces of ice used for every 1/4 cake = 10 1/5

We have to find the unit rate.

Let the unit rate be 'x' .

Unit rate is the rate when we use unit 'one' as our reference to find any value.

Lets convert the mixed fraction of ounces.

⇒ $10\frac{1}{5} = \frac{(10\times 5)+1}{5} =\frac{51}{5}$

Portion of the cake used = $\frac{1}{4}$

To find the unit rate here we must divide :

⇒ $x=\frac{number\ of\ ounces\ used}{portion\ of\ the\ cake}$

⇒ $x=$ $\frac{51}{5}$ ÷ $\frac{1}{4}$

⇒ $x=$ $\frac{51}{5}\times \frac{4}{1}$

⇒ $x=$ $\frac{51\times 4}{5}$

⇒ $x=$ $\frac{204}{5}$

⇒ $x=$ $40\frac{4}{5}$ Or $40.8$

Hence, the unit rate in ounces of icing per cake = 40 4/5 ounces.

7 0

3 years ago