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Viefleur [7K]
3 years ago
14

Please help find which pair works for this equation

Mathematics
1 answer:
JulijaS [17]3 years ago
4 0

Answer:

h = 20 and a = 6

Step-by-step explanation:

Substitute the values of a into the tight side of the inequality and check the validity of the result against the given value of h

a = 1 → 4(1) - 3 = 4 - 3 = 1 and 2 > 1

a = 2 → 4(2) - 3 = 8 - 3 = 5 and 6 > 5

a = 3 → 4(3) - 3 = 12 - 3 = 9 and 10 > 9

a = 6 → 4(6) - 3 = 24 - 3 = 21 and 20 < 21

h = 20 and a = 6 are the only pair that satisfy the inequality

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It takes Ty 4 hours 30 minutes to read his favorite book, reading at a constant rate of 100 pages
AysviL [449]

Answer:

540 pages

Step-by-step explanation:

100 pages = 50 mins

??? pages = 270 mins (converted 4hrs 30 mins to minutes)

Now you could cross multiply to find what the number of pages are:

100 pages x 270  mins = 50 mins x ??? pages

27000 = 50 mins x ??? pages

27000/50 = ??? pages

540 = ??? pages

So there are 540 pages in his favourite book.

8 0
3 years ago
A survey asks a random sample of 2500 adults in California if they support an increase in the state sales tax from 7.50% to 7.75
Nadusha1986 [10]

Answer:

E(Y) = 750

Step-by-step explanation:

Given

Sample Size = 2500

Percentage = 30%

Required

Calculate Mean of Y

Mean or Expected Value is calculated as thus;

E(Y) = np

Where E(Y) represents the mean

n represents the sample size (or population)

p represents the success probability

n = 2500 ; p = 30%%

p = \frac{30}{100} = 0.3

So,

E(Y) = 2500 * 0.3

E(Y) = 750

Hence, the mean value of Y is 750

3 0
3 years ago
A house has increased in value by 15% since it was purchased. If the current value is $391,000, what was the value when it was p
Reika [66]
332,350
You do 391,000 - 15%
5 0
3 years ago
They make a base of 50 gallons (20%). They make a “heavy batch of 150 gallons (80%) They mix them both. What is the percent of
SSSSS [86.1K]
Answer #1: x= 250

50 = x times 20/100

X= 100 times 50/ 20

X=250

Answer #2: same explanation but the answer is X= 120

If your talking about merging the percentage of the answer, I can’t help you with that
4 0
3 years ago
Read 2 more answers
Simplify, y-8(y+12) + 4<br><br>NEED HELP​
ivann1987 [24]
So first distribute the 8 out then add everything together:

y-8y-96+4 = -7y-92
8 0
2 years ago
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