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FinnZ [79.3K]
2 years ago
13

You earn $15 per hour to babysit. After babysitting for 3 hours, you will earn $50. Write an equation to represent the relations

hip between hours worked (x) and earnings in dollars (y).
Mathematics
1 answer:
vfiekz [6]2 years ago
7 0

Answer:

Step-by-step explanation:

x=50 hope it hleps

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3u - 3 = 15<br><br>give me a lecture so i can try to do it in the future please​
never [62]

Answer:

u=6

Step-by-step explanation:

One rule in algebra is what you do to one side, you do it to other side. So if you multiply a number in one side, multiply the same number in other side. Here in this question, you are trying to find the value of the variable u. Variable is called so because the value of it varies depending on different question. Here u is going to be a constant number which when multipled by 3 and then subtracted by 3 equals 15.

So first step is we try to get constants on one side. So we add 3 on both sides to get rid of 3 on left.

3u - 3 + 3= 15+3

3u= 18

Now we divide by 3 on both sides to get u by itself.

3u/3 = 18/3

u= 6

7 0
3 years ago
Twice a number added to a smaller number is 5. The difference of 5 times the smaller number and the larger number is 3. Let
kykrilka [37]

Answer:

The equations that represent the situation are:

2y+x=5

5x-y=3

6 0
3 years ago
Read 2 more answers
Evaluat the exression when <br> X is equal to3<br><br> X+1
Gemiola [76]
Just substitute 3 for x, and it’s 3+1=4. Your answer is 4!
4 0
3 years ago
12y+d=−19y+t solve for y?
sergij07 [2.7K]
Without values for the other variables, I assume you're asking for a literal equation.

12y+d=-19y+t
31y+d=t
31y=-d+t
y=(-d+t)/31
8 0
3 years ago
Read 2 more answers
Given that these simultaneous equations
Tatiana [17]

The value of k is(3\sqrt{ 10})/2

<h3>How to solve the simultaneous equation?</h3>

Given:

x-y=k.............(eq i)

2x²+y²-15..............(eq ii)

We would make y the subject formula in eq ii

2x²+y²-15= 0

2x² + y²= 15

y²= 15-2x²

y= \sqrt{15-2x^2}...........(eq iii)

Substitute the value of y into eq i

x-(\sqrt{15-2x^2}= k

x- (\sqrt{15} - 2x= k

k= (3\sqrt{ 10})/2

Read more about simultaneous equations here:

brainly.com/question/16863577

#SPJ1

3 0
2 years ago
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