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3 years ago

15

translate the sentence into an equation. eight more than the product of a number and 2 is equal to 4. use the variable b for the

unknown number.'

1 answer:

Korolek [52]3 years ago

5 0

6 + 8x, where x is a number. You can also write this in standard form as 8x + 6.

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B. How was the original $20,000 investment split between the two interest rates?

Roman55 [17]

Answer:

t + f = 2000

let represent the amount invested at three percent; let f represent the amount invested at five percent. The total of these amounts is $20,000. The total of the interest earned by each amount is $800. Of course the interest earned is the amount multiplied by the interest rate.

4 0

3 years ago

Solve the equation 3.5z-2.7z=-6

zysi [14]

First you do 3.5z-2.7z= .8z then you divide .8 with -6, which gives you -7.5 so z= -7.5

5 0

3 years ago

Read 2 more answers

Math help please i will mark brainliest!!!!!

mel-nik [20]

Answer:

The second choice is the correct one.

Step-by-step explanation:

20x^4 - 45x^2

GCF is 5x^2, so the factors are:

5x^2( 4x^2 - 9)

Now 4x^2 - 9 is the differencr of 2 squares:

4x^2 - 9 = (2x + 3)(2x - 3)>

4 0

3 years ago

Please answer thank you

Alchen [17]

-x - 9 $\geq 5$

You want to get x by itself.

First subtract 9 from both sides of the equation.

-x - 9 $\geq 5$
+9 +9

-x $\geq 14$

Then divide -1 on both sides.

-x/-1 $\geq 14/-1$

I'm pretty sure when you divide a negative number when solving inequalities, you switch the sign.

x $\leq 5$

8 0

3 years ago

Somebody please help im giving 20 points and a brainliest !

rosijanka [135]

Answer:

Initial is $26000

It's representing decay.

9.1% change each year.

7 0

3 years ago