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CaHeK987 [17]
3 years ago
10

A group of people in an art class and a crafts class were surveyed whether they exercise more than 5 hours a week or less than 5

hours a week. In the art class, 5 people exercise more than 5 hours a week and 8 people exercise less than 5 hours a week. In the crafts class, 10 people exercise more than 5 hours a week and 4 people exercise less than 5 hours a week.
What is the relative frequency of people who exercise more than 5 hours a week in the art class to the total number of people surveyed?
Mathematics
1 answer:
Paladinen [302]3 years ago
8 0
The Relative Frequency is how often something happens out of all possible outcomes. Here you have numbers -- Arts - 5 more, 8 less Crafts- 10 more, 4 less ------------------- What is the relative frequency of people who exercise more than 5 hours a week in Arts class? There are 5 people in arts that exercise more than 5 hours/week. The total number of people all together surveyed is 5 + 8 + 10 + 4 = 27 people There are 5 out of 27 people that are in this catagory Relative Frequency = 5/27 = 0.19
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A piggy bank contains a nickels, dimes and quarters. There are five more dimes than nickels and twice as many quarters as dimes.
Natasha2012 [34]

Answer:

34 nickels, 39 dimes, 78 quarters

Step-by-step explanation:

q = quarters, d = dimes, n = nickels

n = d - 5

q = 2d

.25q + .10d + .05n = 7.55

<em>Plug in the first 2 equations into the third one</em>

.5d + .10d + .05(d - 5) = 7.55

<em>Open up the Parenthesis</em>

.5d + .10d + .5d - .25 = 7.55

<em>Combine Like Terms</em>

.2d - .25 = 7.55-->

.2d = 7.8 -->

d = 39 -->

n = 39 - 5 = 34

q = 2(39) = 78

4 0
3 years ago
Employees from a local store
miv72 [106K]
Forks :
20 x 12 = 240

Spoons:
10 x 12 = 120

Knives :
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Paper plates :
175

Total :
175 + 50 + 120 + 240 = 585

585 picnic items were donated
8 0
3 years ago
SOMEONE HELP ME WITH THIS PROOF
Pavlova-9 [17]
Okay, for this proof, I'll write the steps out.

Statements:
1. ABCD is a parallelogram
2. FG bisects DB
3. <GEB ≡ (pretend congruent symbol) <FED
4. DE ≡ BE
5. <CDA ≡ <ABC
6. < CDB ≡ <DBA
7. triangle DFE ≡ triangle BGE
8. FE ≡ GE
9. DB bisects FG

Reasons:
1. Given
2. Given
3. vertical angles are congruent
4. If bisected, then split into congruent parts
5. opposite angles of a parallelogram are congruent
6. Subtraction Property
7. ASA
8. CPCTC
9. segment split into congruent parts by other segment is bisected.

Hope this helped!  :)
6 0
3 years ago
Find the area of this circle. Use 3.14 for . 84in
Brilliant_brown [7]

Answer:

22155.84 in

Step-by-step explanation:

r = 84 in

π = 3.14

then area if circle = r² × π

… A = 84² × π = 22155.84 = ( 22.15584 min )

5 0
3 years ago
Which exponential function is represented by the graph
S_A_V [24]

Answer:

There is no graph.

Step-by-step explanation:

8 0
3 years ago
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