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Ray Of Light [21]
2 years ago
5

You want to take a trip to the beach, which costs $450. You

Mathematics
1 answer:
poizon [28]2 years ago
7 0

Answer:

900 - 60n ≥ 450

n ≤ 7.5

Answer: 7 weeks

Step-by-step explanation:

Let n = numberof weeks.

In n weeks, you withdraw 60n from the account.

After withdrawing $60 for n weeks, teh amount must be at least $450. At least $450 means greater than or equal to $450.

900 - 60n ≥ 450

-60n ≥ -450

n ≤ 7.5

Answer: 7 weeks

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Find the range of y = -3x + 7 for the domain {-8, -6, -3, -2, 2}
svetlana [45]
The domain is the set of x-values of a function. The range is the set of y-values of a function.

You are told that the domain, or x-values, are -8, -6, -3, -2, and 2. To find the range, you just need to plug in each of the x-values into the function <span>y = -3x + 7 and find the value of y.
1) When x = -8:
</span><span>y = -3x + 7
y = -3(-8) + 7
y = 24 + 7
y = 31

2) When x = -6
</span>y = -3x + 7
y = -3(-6) + 7
y = 18 + 7
y = 25

3) When x = -3
y = -3x + 7
y = -3(-3) + 7
y = 9 + 7
y = 16

4) When x = -2
y = -3x + 7
y = -3(-2) + 7
y = 6 + 7
y = 13

5) When y = 2
y = -3x + 7
y = -3(2) + 7
y = -6 + 7
y = 1

The range is {31, 25, 16, 13, 1}.

-------

Answer: 
{31, 25, 16, 13, 1}
5 0
3 years ago
Evaluate 0.1m + 8 - 12n when = 30 and n = 1/4<br><br> ​
Nastasia [14]

Answer:m=250

Step-by-step explanation:

0.1m+8-3=30

0.1m+5=30

0.1m=25

0.1 times 250=25

m=250

6 0
3 years ago
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Can anybody help with this?
adelina 88 [10]

Answer:

x=100

Step-by-step explanation:

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Mademuasel [1]
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tan 32° = (1700-5.2) / x    
which would give you </span><span>x = 2712.25 ft</span>

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4 years ago
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