If 3t-7 = 5t then 6t =How do I solve this? I've tried finding help online, but I'm getting more confused.

Answers

Answer 1

Answer: $3t-7=5t\ \ \ /+7\n\n3t-7+7=5t+7\n\n3t=5t+7\ \ \ /-5t\n\n3t-5t=5t-5t+7\n\n-2t=7\ \ \ /:(-2)\n\nt=-(7)/(2)\n\n\n6t=6\cdot(-(7)/(2))=3\cdot(-7)=-21$

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What is the volume and surface area of a sphere if the diameter is 7.5 feet?

Answers

The volume of a sphere is expressed as the four thirds of the product of pi and the cube of its radius. The surface area, on the other hand, is expressed as four times the product of pi and the square of its radius. Radius is half the diameter. Calculations are as follows:

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if 31/2 pounds of bananas cost $1.96, how much would one pound cost? a. $.56 b. $.18 c. $.66 d. $1.76

Answers

3 1/2=(2*3+1)/2=7/2
1.96: 7/2=1,96*2/7=3,92/7=0,56 $

The answer is a.

The table shows the population of a small town over time. The function P = 10,550(1.1)x models the population x years after the year 2000. The function P = 10,550(1.1)x models the population x years after the year 2000. For which year would this model most likely be sufficient to make a prediction of the population? 1950 2005 2025 2050

Answers

Answer:
2005 would be the most sufficient date to use this model for.

Explanation:
The model is using a short amount of time as its basis, we would not want to go too far into the future.
It would likely be less and less accurate the later we go. We also can't use 1950 because the function looks for years after 2000.

Answer:

the answer is B

Step-by-step explanation:

Answer:

2005 would be the most sufficient date to use this model for.

Explanation:

The model is using a short amount of time as its basis, we would not want to go too far into the future.

It would likely be less and less accurate the later we go. We also can't use 1950 because the function looks for years after 2000.

Write an expression that matches the verbal expression: seven less than a number.

Answers

N-7 because when writing algebraic expressions you flip the order

3n-5=-8(6+5n) SOLVE

Answers

It's gonna be a long problem: Remember PEMDAS
3n-5=8(6+5n)
3n-5= 48 + 40n Distribute 8 into parenthesis
3n-3n-5=48+40n-3n Put variable on one side.
-5-48=48-48+37n Isolate the variable
-43/37=37n/37 Isolate variable more
-1.162=n Simplify
The answer is repeating; that is a shortened version.

t's gonna be a long problem: Remember PEMDAS

3n-5=8(6+5n)

3n-5= 48 + 40n Distribute 8 into parenthesis

3n-3n-5=48+40n-3n Put variable on one side.

-5-48=48-48+37n Isolate the variable

-43/37=37n/37 Isolate variable more

-1.162=n Simplify

The answer is repeating; that is a shortened version.

Please help me out please

Answers

Answer:

Step-by-step explanation:

For rectangle ABCD, AC and BD are the lengths of the diagonals. The diagonals of a rectangle are congruent.

AC = BD

3x + 7 = 131 - x

Add x to both sides.

4x + 7 = 131

Subtract 7 from both sides.

4x = 124

Divide both sides by 4.

x = 31

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