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3 years ago

Please look at the photo and solve please I need help

Mathematics

1 answer:

Tresset [83]3 years ago

6 0

Answer:

Step-by-step explanation:

The unit rate changes throughout the table.

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Translate the phrase into a variable expression. use the letter n to name the variable. if necessary, use the asterisk ( * ) for

Roman55 [17]

Answer:

Step-by-step explanation:

3 0

3 years ago

Identify the percent change: 14 dollars to 10 dollars

Xelga [282]

Hello from MrBillDoesMath!

Answer:

- 28.6 % (approx)

Discussion:

14 -> 10 dollars is a drop of (14-10) or 4 dollars. The percent drop is given by

(14-10)/14 =

4/14 =

2/7 =

28.6% (approx)

Since this is a drop the percent is actually negative = - 28.6%

Thank you,

MrB

7 0

4 years ago

1/3× 21/4-11/2÷22/5?? .btw they are improper fractions

IceJOKER [234]

<h3>Solution:</h3>

$\frac{1}{3} \times \frac{21}{4} - \frac{11}{2} \div \frac{22}{5} \\ = \frac{1}{3} \times \frac{21}{4} - \frac{11}{2} \times \frac{5}{22} \\ = \frac{1}{3} \times \frac{21}{4} - \frac{5}{4} \\ = \frac{7}{4} - \frac{5}{4} \\ = \frac{2}{4} \\ = \frac{1}{2}$

<h3>Answer:</h3>

$\frac{1}{2}$

4 0

3 years ago

Which is the graph of the linear equation y= -1/4 x + 3?

Lesechka [4]

We know that -1/4x means we have a negative slope, which excludes the 1st graph from our answer choices.
Second, we know that the y-intercept has to be 3, excluding the second and third graph.
This leaves us with the 4th graph as our answer

6 0

4 years ago

The minute hand of a clock is 8 inches long. How far does the tip of the minute hand move in 30 minutes? How far does it move in

Brrunno [24]

Answer:

In 30 minutes:

The minute hand moves a distance of 25.13 inches

In 20 minutes:

The minute hand moves a distance of 16.76 inches

Step-by-step explanation:

When 60 minutes are completed, the minute hand of the relog makes a complete revolution. The distance s that the minute hand travels when making a complete revolution is:

$s = 2\pi r$ Where r is the radius of the circumference, and in this case, the radius of the minute hand.

So:

$s = 16 \pi$

s = 50.27 inches.

In 30 minutes (which is half of 60) the minute hand covers only half a revolution. Then the distance traveled in 30 minutes is $\frac{1}{2}(s) = 25.13$ inches

In 20 minutes (which is one third of 60) the minute hand only travels a third of a complete revolution. Then the distance traveled in 20 minutes is $\frac{1}{3}(s) = 16.76$ inches

3 0

3 years ago