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3 years ago

Simply 9+3(8-3(7-5))-4

Mathematics

1 answer:

EastWind [94]3 years ago

4 0

Answer:

Step-by-step explanation:

9+3(8-3(7-5))-4
9+3(8-3(2))-4
9+3(8-6)-4
9+3(2)-4
9+6-4
15-4
11

I first delt with simplifying the parentheses till step five. Then in five I just added 9+6 because it came before the -4. But PEMDAS is very important when doing these problems because it tell you the order

P (parentheses)
E (exponents)
M (multiply)
D (divide)
A (add)
S (subtract)
**the biggest thing is that with multipe and divide it depends what comes first. If you see divide before multipe in the problem just do it that way. It is the same way with add and subtract but The multiple/divide group ALWAYS comes BEFORE add/subtract

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Answer:

2 if x=0

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4 years ago

The function with a rate of change of 4/5 that has a value of 10 at x=10

Aleks [24]

Answer:

y = $\frac{4}{5}$ x + 2

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Assuming you require the equation of the function.

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Here m = $\frac{4}{5}$ , thus

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3 years ago

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3 years ago

Jose invests $10900 in two different accounts. The first account paid 8 %, the second account paid 11 % in interest. At the end

navik [9.2K]

Answer: $4900 at 8%

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Step-by-step explanation:

Let x represent the amount which he invested in the account paying 8% interest.

Let y represent the amount which he invested in the account paying 11% interest.

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x + y = 10900

The formula for determining simple interest is expressed as

I = PRT/100

Considering the account paying 8% interest,

P = $x

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I = (x × 12 × 1)/100 = 0.08x

Considering the account paying 11% interest,

P = $y

T = 1 year

R = 11℅

I = (y × 6 × 1)/100 = 0.11y

At the end of the first year he had earned $1052 in interest., it means that

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Substituting x = 10900 - y into equation 1, it becomes

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3 years ago