4 years ago

How would u solve 7c + 12 = -4c + 78

1 answer:

4 0

7c + 12 = -4c + 78 +4c. +4c 11c + 12 = 78 -12. -12 11c = 66 11/11. 66/11 C = 6 Plug in the answer to check . 7 * 6 + 12 = 54 -4 * 6 + 78 = 54 54 = 54

You might be interested in

6x2 + 14 - 10x

olchik [2.2K]

$\lsrge\text{Hey there!}$

$\mathsf{6x^2 + 14 - 10x}\\\mathsf{= 6(5)^2 + 14 - 10(5)}\\\mathsf{= 6(\bold{25}) + 14 - 10(5)}\\\mathsf{= \bold{150} + 14 - 10(5)}\\\mathsf{= \bold{164} - 10(5)}\\\mathsf{= 164 - \bf 50}\\\mathsf{= \bf 114}\\\\\large\text{Therefore, your answer is: \huge\boxed{\mathsf{Option\ C. 114}}}\huge\checkmark$

$\large\text{Good luck on assignment \& enjoy your day!}$

~ $\frak{Amphitrite1040:)}$

8 0

3 years ago

Read 2 more answers

Evaluate each expression using the variable replacements.

8090 [49]

Answer:

Step-by-step explanation:

-7-2=-9

due to the absolute value symbol placed before and after "m - n"; your answer will be a positive; -9 = 9(+)--> times 4= 36

4|m-n| = 36

3 0

3 years ago

The difference of two numbers is 34 and their sum is 338

Assoli18 [71]

X-y=34
x+y=338

We can use elimination in this problem.

2x=372
x=186

186+y=338
y=338-186
y=152

4 0

3 years ago

When Tom purchased a new motorcycle, he paid a 5% sales tax. The amount of sales tax he paid was $265. What was the total cost o

makkiz [27]

The total cost of the motorcycle was $5,565.

6 0

3 years ago

Now that his car is 5 years old, he would like to know whether the variability of gas mileage has changed. He recorded the gas m

Kamila [148]

Answer:

Now that his car is 5 years old, he would like to know whether the variability of gas mileage has changed. He recorded the gas mileage from his last eight fill-ups; these are listed here. Conduct a test at a 10% significance level to infer whether the variability has changed.

Step-by-step explanation:

6 0

3 years ago