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Brut [27]
3 years ago
13

What is the value of x in the equation 7x + 2 y = 48, when y = 3?

Mathematics
2 answers:
Sergio [31]3 years ago
6 0
The answer is 6 bc i calculated it
siniylev [52]3 years ago
4 0

Answer:

x=6

Step-by-step explanation:

We are given the equation

7x+2y=48

We are also given y=3. Since we know y is equal to 3, we can substitute 3 in for y.

7x+2(3)=48

Multiply 2 and 3

7x+6=48

Now, we need to solve for x. To do this, we have to get x by itself. First, subtract 6 from both sides, since 6 is being added on.

7x+6-6=48-6

7x=42

Next, divide both sides by 7, because 7 and x are being multiplied. This will cancel out the 7, and leave x by itself.

7x/7=42/7

x=6

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YES I WILL MARK BRAINLIST:D
emmasim [6.3K]

she can purchase 6 hotdogs

5 0
3 years ago
Read 2 more answers
Tony wants to save $10,000 in 6 years. Assuming a 4% interest rate, what is the minimum he must save each month to reach his goa
arlik [135]

We have been given that Tony wants to save $10000 in 6 years.

That means future value S = $10000

Time t= 6 years

Interest rate = 4% yearly = 0.04 yearly

n=12 months per year

Now we have to find monthly payment to recieve $10000 in 6 years. so we need to apply monthly payment formula which is

S=R(\frac{(1+\frac{r}{n})^{nt}-1}{\frac{r}{n}})

10000=R(\frac{(1+\frac{0.04}{12})^{12*6}-1}{\frac{0.04}{12}})

10000=R(\frac{(1+0.00333333333333)^{72}-1}{0.00333333333333})

10000=R(\frac{(1.00333333333333)^{72}-1}{0.00333333333333})

10000=R(\frac{1.27074187908-1}{0.00333333333333})

10000=R(\frac{0.27074187908}{0.00333333333333})

10000=R(81.2225637241)

\frac{10000}{81.2225637241}=R

123.11849739=R

which is approx $123.

Hence final answer is C) $123.

4 0
4 years ago
Subtrahend is when you subtract a number from another
aniked [119]

Didn't know if this was a question but if yes it is



4 0
4 years ago
Evaluate.
aleksandrvk [35]

Answer: -2 4/15

Step-by-step explanation: To properly subtract, we need to find a common denominator. We can list the multiples of 3 and 5 to find the common denominator:

3: 3, 6, 9, 12, 15

5: 5, 10, 15


The first common multiple we see is 15.

Calculation:

3 · 3 = 9

9 + 1 = 10

3 1/3 = 10/3

5 x 5 = 25

25 + 3 = 28

-5 3/5 = -28/5

Now to convert into fifteen as the denominator:

-28/5 = -28 x 3/5 x 3 = -84/15

10/3 = 10 x 5/3 x 5 = 50/15

Now to subtract accordingly:

50/15 - 84/15 = -34/15

Final answer: -34/15 (can be reduced to -2 4/15).

3 0
1 year ago
Solve this and get 20 points
VikaD [51]

take x =initial deposit amount. then make equation:

x+75.5+55.25-25.15-18.65 = 210.85

simplify:

x+86.95 = 210.85

x=210.85 - 86.95

x=123.90

so Initial deposit amount is $123.90

check:  210.85+18.65+25.15-55.25-75.5 = 123.9

123.9 = 123.9

4 0
3 years ago
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