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forsale [732]
3 years ago
15

Sam has $400 in his bank account and plans to save $25 per week. Zoe has $250 in her bank account and plans to save $75 per week

. How many weeks will it be before their accounts are equal?
Mathematics
1 answer:
elena-14-01-66 [18.8K]3 years ago
5 0

Say x is the number of weeks until their money is equal. Then, we can set up an equation.

400 + 25x = 250 + 75x

Subtract 250 from both sides

150 + 25x = 75x

Subtract 25x from both sides

150 = 50x

Divide by 50 on both sides

3 = x

That means the answer is 3 weeks.

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Write an equation to show the relationship between a and c when a = b + 9 b = c - 2​
ICE Princess25 [194]

Given:

The equations are:

a=b+9

b=c-2

To find:

The equation that show the relationship between a and c.

Solution:

We have,

a=b+9               ...(i)

b=c-2               ...(ii)

Equation (i) can be rewritten as:

a-9=b              ...(iii)

From (ii) and (iii), we get

a-9=c-2

a-c=9-2

a-c=7

Therefore, the required equation is a-c=7.

4 0
3 years ago
Given the functions f(x) = x3 + x2 – 3x + 4 and g(x) = 2x – 4, what type of functions are f(x) and g(x)? Justify your answer. Wh
8090 [49]

The first function is a type of cubic function and second function is a type of linear function. The key feature(s) do f(x) and g(x) have in common as they both have value of domain and range as (-∞, ∞).

<h3>What is a Function?</h3>

A function assigns the value of each element of one set to the other specific element of another set.

The function given in the problem is:

f(x) = x³ + x² – 3x + 4

The highest degree (power) of this function is 3. Thus, this function is a type of cubic function.

The second function given in the problem is:

g(x) = 2x – 4

The highest degree (power) of this function is 1. Thus, this function is a type of linear function.

Both the function has the value of domain and range from -∞ to ∞ (-∞,∞).

Thus, the first function is a type of cubic function and second function is a type of linear function. The key feature(s) do f(x) and g(x) have in common as they both have value of domain and range as (-∞, ∞).

Learn more about Function here:

brainly.com/question/5245372

#SPJ1

4 0
2 years ago
Over the first five years of owning a car Gina drove about 12200 miles the first year 16211 miles the second year 12050 the thir
Nataly_w [17]
Mean (average) - 13027.2
Median (middle number) - 12,200
Mode (occurs the most often) - none of the numbers occur more than once?

Mean would be the best to predict because it is the average miles Gina has driven over the past five years
3 0
3 years ago
The Vangsgas bill for November was $53. The December bill was
cricket20 [7]

Answer: the right answer is 268

Step-by-step explanation:

Since November was $53 you add 30 more to get Decembers bill you will get it $83 for December. Next you add $49-$83 to your January and that will be 132. You are all through the month so will be $53+$83+132 =268

7 0
3 years ago
What is the upper quartile, Q3, of the following data set?
Ivenika [448]
UQ’s place = 3/4(n+1) so its 3/4 of 16 which is 12 so its the 12th place so its 24
5 0
3 years ago
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