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4 years ago

PLEASE HELP!!!!

Mathematics

1 answer:

luda_lava [24]4 years ago

4 0

Answer:

Let's solve your equation step-by-step.

1/2x + 2 = −2

Step 1: Subtract 2 from both sides.

1/2x + 2 − 2 = −2 −2

1/2x = −4

Step 2: Multiply both sides by 2.

2 * (1/2x) = (2) * (−4)

x= −8

Step-by-step explanation:

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Rom4ik [11]

I'm going with the 3rd one ...

hope I helped !

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3 years ago

Mary deposits R400 every three months into a bank account earning interest at 16% per year, compounded quarterly. The approximat

ycow [4]

Answer:

The approximate time that it will take Mary to save R40000 is 29 years

Step-by-step explanation:

A= p(1+r/n)^nt

t = log(A/P) / n[log(1 + r/n)]

A = R40000

n = 4

P = R400

r = 16%

t = log(A/P) / n[log(1 + r/n)]

= log(40,000 / 400) / 4{log(1+0.16/4)}

= log(100) / 4{log(1+0.04)}

= 2 / 4{log(1.04)}

= 2 / 4(0.0170)

= 2 / 0.068

= 29.41

t = 29.41 years

Approximately 29 years

The approximate time that it will take Mary to save R40000 is 29 years

3 0

3 years ago

What is the value of x? Enter your answer in the box. X = _

Elena-2011 [213]

Pretty sure the answer is 5. x = 5

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3 years ago

Tim received 55 dollars for his birthday. He went to a sporting goods store and bought a baseball glove, baseball, and bat. He h

dexar [7]

Answer:

He had spent $35 on ⚾ gear

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3 years ago

Blake gives piano lessons in the evenings.

Aliun [14]

Answer:

The correct answer is B. {0, 20, 40, 60, 80, 100, 120}

Step-by-step explanation:

1. Let's check all the information given to answer this question correctly:

Rate of each piano lesson Blake gives = US$ 20

Blake can give between 0 and 6 lessons every evening

Earnings = Number of lessons * Rate of each lesson

2. What is the range of this relation?

Let's recall that the domain of a relation is the set of all values for which the relation is defined, and the range of the relation is the set of all values that the relation takes.

It means that the domain of the relation in this case is the number of lessons that Blake can give every evening:

{0, 1, 2, 3, 4, 5, 6}

And the range of this relation is the amount Blake earns in an evening depending on the number of lessons he gives:

{0, 20, 40, 60, 80, 100, 120}

The correct answer is B. {0, 20, 40, 60, 80, 100, 120}

3 0

4 years ago

Read 2 more answers