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3 years ago

Robin earned $4,320 in 9 weeks and worked 40 hours in each week.how much did he earned per hour

Mathematics

1 answer:

Gekata [30.6K]3 years ago

6 0

Answer:

$12 per hour

Step-by-step explanation:

4320 / 9 = 480 per week / 40 = 12 per hour

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What is the difference in temperature between −10°F and 30°F?

Elden [556K]

Answer:

40 degrees

Step-by-step explanation:

-10+40=30

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3 years ago

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Logan measured a line to be 7.4 inches long. If the actual length of the line is 7.7 inches, then what was the percent error of

algol13

Answer:

3.9%

Step-by-step explanation:

Percentage error

$= \frac{7.7 - 7.4}{7.7} \times 100 \\ \\ = \frac{0.3}{7.7} \times 100 \\ \\ = \frac{300}{77} \\ \\ = 3.8961039 \\ \\ = 3.9 \%$

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3 years ago

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Please help. Im dying for the explanation. I will mark you brainalist.

AlekseyPX

Step-by-step explanation:

Given that the mean of the numbers is 12

$mean = \frac{sum \: \: of \: observations}{total \: number \: of \: observations}$

so here

let's that one as x and another one as 2x since it is given that one is twice the other

Therefore we get

$mean = \frac{13 + x + 4 + 16 + 6 + 2x}{6}$

Given mean = 12

$12 = \frac{39 + 3x}{6}$

$72 = 39 + 3x$

$3x = 33$

$x = 11$

Hence it's 11 and 22

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2 years ago

What is 4.11 x 7.32 divided by 5

Maurinko [17]

Hello!

$\huge \text{Answer:-}$

$4.11 ~x~ 7.35/5 = 6.01704.$

Just do your time tables, and you will get the answer from there ! Cause- you already know what is the answer is.

Hopefully This Helps !

$\huge \text{Answer:-}$

$\text{Jace}$ ^-^

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3 years ago

Two ice skaters started on opposite ends of a 200-foot-long rink and then skated toward each

SSSSS [86.1K]

Answer:

The proportion that can be used to find x is;

(200-x)/x = 7/6

Step-by-step explanation:

Now, we want to find the proportion which can be used to find x.

From the question, we are told that the father skater traveled 7 ft for every 6 ft of the slower skater;

this means that the ratio of their speed is 7:6

Now, when they passed each other , the slower skater has traveled x ft, what this means is that the faster skater will have traveled a distance of (200-x) ft at that moment they passed each other.

Mathematically, since their time is equal i.e the time they used to pass each other, then, the ratio of their distances is same as the ratio of their speeds;

Hence;

(200-x)/x = 7/6 or x/(200-x) = 6/7

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3 years ago