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belka [17]
3 years ago
9

The ratio of the ages (in years) of two teachers is 8 : 9. The sum of their ages is 51. What is the age of each teacher?

Mathematics
1 answer:
Keith_Richards [23]3 years ago
8 0

Answer:

Check pdf

Step-by-step explanation:

Download pdf
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A shopper bought 15 apples and 5 oranges. Which statement describes the ratio of apples to
dexar [7]

Answer:

15:5 is the ratio of apples to oranges and 5:15 if reverse

5 0
3 years ago
The probability that a new advertising campaign will increase sales is assessed as being 0.80. The probability that the cost of
tatuchka [14]

Answer:

The probability that the cost is kept within budget or the campaign will increase sales is 0.88

Step-by-step explanation:

The probability that the cost is kept within budget (event A) <u>or</u> the campaign will increase sales (event B) is the <u>union</u> of the probability of those two events. By basic properties of probability, this is:

P(A ∪ B) = P(A) + P (B) - P(A ∩ B)

and for independent events:

P(A ∩ B) = P(A) * P(B)

So:

P(A ∪ B) = 0.80 + 0.40 - (0.80*0.40) = 1.20 - 0.32 = 0.88

5 0
3 years ago
A) Antoine's family is taking a summer vacation through the northern united states on day one of the trips the family will be tr
kirill115 [55]

Answer:

<h2>621.207km</h2>

Step-by-step explanation:

We are expected to convert from miles to kilometer

first day 85 miles =136.794km

Second day 125 mile=201.168km

third day 176 miles =283.245km

Total distance covered is

136.794km+201.168km+283.245km=621.207km

Therefore the total distance in kilometer is 621.207km

8 0
3 years ago
(n+8)+(n−12)<br> Please help
Sonbull [250]

Answer:

=n+8+n+−12

=(n+n)+(8+−12)

=2n+−4

Answer:

=2n−4

= 2(n-2)

6 0
2 years ago
What would you use to measure the distance from new York to chicago using metric measurements
DedPeter [7]

Answer:

kilometers

1 mile is 1.600km

7 0
3 years ago
Read 2 more answers
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