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nataly862011 [7]
3 years ago
7

If y varies with x, and y equals 10 when x equals 4, find when y equals 80

Mathematics
1 answer:
Ratling [72]3 years ago
6 0
Find x when y equals 80? If so I believe x=32 
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Lana is the oldest of four sisters. Her youngest sister is half her age. The other two sisters are twins $2$ years younger than
ivanzaharov [21]
N= 7
2n+n+2n-2+2n-2=45
7n-4=45
7n=49
n=7
6 0
2 years ago
The play took in $744 one night. The number of $8 adult tickets was 12 less than twice the number of $5 child tickets. How many
vfiekz [6]

Answer:

68 adult tickets and 40 child tickets were sold.

Step-by-step explanation:

Create a system of equations where a is the number of adult tickets sold and c is the number of child tickets sold:

8a + 5c = 744

a = 2c - 12

Solve by substitution by substituting the second equation into the first one:

8(2c - 12) + 5c = 744

16c - 96 + 5c = 744

21c - 96 = 744

21c = 840

c = 40

So, 40 child tickets were sold. Plug this into the second equation to solve for a:

a = 2c - 12

a = 2(40) - 12

a = 80 - 12

a = 68

So, 68 adult tickets and 40 child tickets were sold.

3 0
2 years ago
Mariana's swimming pool holds 22,000 gallons of water. If there are approximately 7.5 gallons per cubic foot, what size swimming
Nuetrik [128]
Do 22000/7.5
2933.33333 cubic feet
6 0
3 years ago
A mile is 5,280 feet between which two integers is the elevation of the trench in miles-22,889 feet is between and miles
andrew11 [14]

The elevation of the trench is between 4 miles and 5 miles.

<h3>Between which integers is the elevation of the trench in miles?</h3>

Herein we have the information of the elevation of the trench in feet and we need to determine between which integers in miles is that elevation, based on the unit conversion from feet to miles. The exact elevation in miles is found by simple rules of three:

x = 22,889 feet × (1 / 5,280 miles / feet)

x ≈ 4.335 miles

The elevation of the trench is between 4 miles and 5 miles.

To learn more on unit conversions: brainly.com/question/11543684

#SPJ1

6 0
1 year ago
A shopper uses a department store gift card to pay for 5 sweaters priced at $26 each. What is the change in the value of the gif
White raven [17]

what is the giftcard value???

o-O

6 0
3 years ago
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