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3 years ago

Solve the linear equation 7x-3=67 for x

Mathematics

2 answers:

SpyIntel [72]3 years ago

5 0

Answer:

x=10

Step-by-step explanation:

$7x-3=67\\\\7x-3+3=67+3\\\\7x=70\\\\7(x)=7(10)\\\\x=10$

Nataly_w [17]3 years ago

3 0

Answer:

x = 10

Step-by-step explanation:

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Which inequality can be used to represent a number x that is less than equal to 8 and greater than -3

KIM [24]

Answer: x = -2,-1, 0, 1, 2, 3, 4, 5, 6, 7, 8

Solution:

A number line is used to represent the possible numbers that x can be.

x that is less than equal to 8 >>>> x ≤ 8

x is greater than -3 >>>> x > -3

So it will be represented as,

-3 < x ≤ 8

So all the numbers between -3 and 8 including eight (because it has the equal sign)

-2,-1, 0, 1, 2, 3, 4, 5, 6, 7, 8

7 0

3 years ago

1400 dollars is placed in an account with an annual interest rate of 5.5%. to the nearest year, how long will it take for the ac

olga_2 [115]

It will take 19 years and 6 months for the account value to reach 2900 dollars

Step-by-step explanation:

Given

Principal amount = 1400 dollars

Rate = 5.5 %

Final value = A = 2900

We have to find t

So,

The formula for simple interest is:

$A = P(1+rt)$

Putting values

$2900 = 1400(1+0.055.t)\\\frac{2900}[1400} = 1+0.055t\\2.071 = 1+0.055t\\2.071-1=0.055t\\1.071 =0.055t$

Dividing both sides by 0.055

$\frac{0.055t}{0.055} = \frac{1.071}{0.055}\\t = 19.47\ years$

Rounding off to nearest tenth

19.5 years

Hence,

It will take 19 years and 6 months for the account value to reach 2900 dollars

Keywords: Interest, simple interest

Learn more about interest at:

#LearnwithBrainly

6 0

3 years ago

How to finsd the set of numbers if the mean, median and mode is given

Bad White [126]

Answer:

a) we have the numbers 0, 2, 3, 5, 5. The mean and the median are both 3

b) we have the numbers 0, 0, 3, 5, 7. The mean and the median are both 3

In both cases the mean and the median are 3, but the mode differs. The mean and the median do not uniquely determine the mode.

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

I need help simplifying this problem:

Aliun [14]

C(t)= -0.3t^2 + 7.2t - 3.2

12c = 40

6 0

3 years ago

Write an equation in slope-intercept form of a line that has a slope of 1/2

andriy [413]

Answer: y=−12x+3.

Step-by-step explanation:

7 0

3 years ago