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Alex_Xolod [135]
3 years ago
9

You earn $42 for babysitting for 6 hours. How much money did you earn per hour

Mathematics
1 answer:
jok3333 [9.3K]3 years ago
8 0

Answer:

$7 per hour

Step-by-step explanation:

$42 divided by 6 hours

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Find the volume of the prism
anygoal [31]

Answer:

75

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
The probability of an event is 3/10 . What are the odds of the same event?
kozerog [31]

Answer:

D. \frac{3}{7}

Step-by-step explanation:

We have been given that the probability of an event is 3/10.  

To find the odds of the same event we will use formula:

\text{Odds of an event}=\frac{\text{Probability of the event}}{\text{1-Probability of the event}}

\text{Odds of the event}=\frac{\frac{3}{10}}{1-\frac{3}{10}}

\text{Odds of the event}=\frac{\frac{3}{10}}{\frac{1*10}{10}-\frac{3}{10}}

\text{Odds of the event}=\frac{\frac{3}{10}}{\frac{10-3}{10}}

\text{Odds of the event}=\frac{\frac{3}{10}}{\frac{7}{10}}

Dividing a fraction with another fraction is same as multiplying the 1st fraction by the reciprocal of second fraction.

\text{Odds of the event}=\frac{3}{10}\times \frac{10}{7}

\text{Odds of the event}=\frac{3}{7}

Therefore, the odds of the same event is \frac{3}{7} and option D is the correct choice.


8 0
3 years ago
The perimeter of a kite is 50 mm. The length of one of its sides is 1 mm more than twice the length of another. Find the length
rosijanka [135]

Answer:

The length of the longest side is 13mm

Step-by-step explanation:

Represent the two sides with a and b, where a is the longest

Perimeter = 50

a=b + 1

Required

Determine the length of the longest side

Perimeter of a kite is calculated as thus:

Perimeter = 2(a + b)

Make b the subject in a=b + 1

b = a -1

Substitute a - 1 for b and 50 for Perimeter in Perimeter = 2(a + b)

50 = 2(a + a - 1)

Divide through by 2

25 = a + a - 1

25 = 2a- 1

Add 1 to both sides

25 + 1 = 2a - 1 +1

25 + 1 = 2a

26 = 2a

Solve for a

a = 26/2

a = 13

<em>Hence, the length of the longest side is 13mm</em>

4 0
2 years ago
12What mistake did the student make when solvingtheir two-step equation?(a)b) If correctly solved what should the value of be?
mixas84 [53]

Given the equation:

\frac{x}{6}+3=-18

(a) You can identify that the student applied the Subtraction Property of Equality by subtraction 3 from both sides of the equation:

\frac{x}{6}+3-(3)=-18-(3)

However, the student made a mistake when adding the numbers on the right side.

Since you have two numbers with the same sign on the right side of the equation, you must add them, not subtract them and use the same sign in the result. Then, the steps to add them are:

- Add their Absolute values (their values without the negative sign).

- Write the sum with the negative sign.

Then:

\frac{x}{6}=-21

(b) The correct procedure is:

1. Apply the Subtraction Property of Equality by subtracting 3 from both sides (as you did in the previous part):

\begin{gathered} \frac{x}{6}+3-(3)=-18-(3) \\  \\ \frac{x}{6}=-21 \end{gathered}

2. Apply the Multiplication Property of Equality by multiplying both sides of the equation by 6:

\begin{gathered} (6)(\frac{x}{6})=(-21)(6) \\  \\ x=-126 \end{gathered}

Hence, the answers are:

(a) The student made a mistake by adding the numbers -18 and -3:

-18-3=-15\text{ (False)}

(b) The value of "x" should be:

x=-126

4 0
1 year ago
3/8 ÷7/2 evaluates to
alina1380 [7]

Answer:

3/28

Step-by-step explanation:

You can rewrite 3/8 ÷7/2 to 3/8 x 2/7

then you can simplify which is 3/28

8 0
2 years ago
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