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4 years ago

Add parentheses to make this equation true

Mathematics

1 answer:

liberstina [14]4 years ago

5 0

Idk for sure but that’s what I think

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2(t+1)=10. need the answer for t I got the rest just can't get t

harkovskaia [24]

Answer: $t=4$

Simplify both sides of the equation

$(2)(t)+(2)(1)=10(Distribute)\\2t+2=10$

Subtract 2 from both sides

$2t+2-2=10-2\\2t=8$

Divide both sides by 2

$\frac{2t}{2} =\frac{8}{2} \\t=4$

6 0

4 years ago

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Which of the following are solutions to | x-1|= 5x + 2 ? Check all that apply.

agasfer [191]

By definition of absolute value, if $x-1\ge0$ , then $|x-1|=x-1$ , so

$|x-1|=5x+2\implies x-1=5x+2\implies4x=-3\implies x=-\dfrac34$

On the other hand, if $x-1$ , then $|x-1|=-(x-1)=1-x$ , and

$|x-1|=5x+2\implies1-x=5x+2\implies6x=-1\implies x=-\dfrac16$

4 0

3 years ago

Convert 1.51 to a fraction

SpyIntel [72]

It would be 151/100 it ant be symplified anymore so

5 0

3 years ago

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The decay of 192 mg of an isotope is given by A(t)= 192e-0.015t, where t is time in years. Find the amount left after 55 years.R

finlep [7]

This is a typical radioactive decay problem which uses the general form:

A = A0e^(-kt)

So, in the given equation, A0 = 192 and k = 0.015. We are to find the amount of substance left after t = 55 years. That would be represented by A. The solution is as follows:

A = 192e^(-0.015*55)
A = 84 mg

6 0

4 years ago

Will mark brainliest!!

melamori03 [73]

A) Garage A = 3x
Garage B = 2x + 2
b) 2x + 2 = 3x
x = 2
c) the solution, 2, means the number of hour which both garages would have the equal amount of cost. In this case, in 2 hours, they would be equal in cost.

8 0

3 years ago

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