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Scilla [17]
3 years ago
8

If 5/8 of the people in a water aerobics class are over age 65 and 1/4 of the people in the class are under age 40, what fractio

n of the people in the class are either over 65 or under 40?
Mathematics
1 answer:
agasfer [191]3 years ago
7 0

Answer:

7/8

Step-by-step explanation:

You just need to add the two fractions together. Since no one can be both, no  other revision is needed.

5/8 + 1/4 = 5/8 + 2/8 = 7/8

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Can someone help me with these please.
ELEN [110]

Answer: Barbara did not include a variable in the term 1.49, which must represents the number of bottles of iced tea she needs to sell.

Step-by-step explanation:

Let be "x" the number of bottle of water Barbara needs to sell and "y"  the number of bottle of iced tea she needs to sell.

She sells iced tea for $1.49 per bottle and water for $1.25 per bottle, so she can write the following equation in order to calculate the number of bottles she needs to sell to earn $100:

1.25x + 1.49y = 100

Since Barbara wrote this equation:

1.25x + 1.49 = 100

We can conclude that the error Barbara made in writing the equation was: She did not include a variable in the term 1.49, which must represents the number of bottles of iced tea she needs to sell.

8 0
4 years ago
The table displays the number of butterflies collected in a sample over three years. What inferences can be made from the sample
Nina [5.8K]

Answer:

B) - The Viceroy population remained fairly steady over the three years recorded.

C) - The average number of Zebra Swallowtails over all three samples will be less than the number recorded in year 1.

D) - If a population is increasing over time, the average will be less than the most recent count.

Step-by-step explanation:

just got it right on the test

4 0
3 years ago
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NEED ANSWERS ASAP PLZZZ​
Sergio039 [100]
19 is 1:3 2:8 4:6 5:7
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7 0
4 years ago
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Which equation shows the inverse property of multiplication?
serious [3.7K]

Answer:

C

Step-by-step explanation:

The options are:

<em>A. 4 + (-4) = 0 </em>

<em>B. -8 + (-3) = -3 + (-8) </em>

<em>C. 2 </em>×<em> 1/2 = 1 </em>

<em>D. 8/5 + 0 = 8/5</em>

<em />

The inverse property of multiplication states that the product of a number and its inverse is one.

The inverse of 2 is 1/2. The multiplication of 2 × 1/2 = 1 , as the property states.

8 0
3 years ago
How would you simplify the expression represented by the diagram below?
luda_lava [24]
6 + 3c is the correct answer
3 0
3 years ago
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