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4 years ago

When using fraction strips, how do you know that two fractions are equivalent?

1 answer:

8 0

Well when you are using a fraction strip, it tells you fractions that are equivalent. To know how to fractions are equivalent, then you have to work it out writing out different sets of fractions and seeing if they are the same.

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Polynomials Multiply 5x(x2 - 4x + 2)

salantis [7]

Answer:

Assuming "x2" is x squared:

5x(x2-4x+2)

(5x(x2)+5x(-4x)+5x(2))

5x^3-20x+10x

For these polynomial multiplication problems, just distribute the number outside the parentheses.

4 0

3 years ago

Read 2 more answers

Multiply the expression (1/3 m-n)^2

nataly862011 [7]

Answer:

{(

6 0

3 years ago

Read 2 more answers

Find the balance in an account with $7,000 principal earning 5% interest compounded quarterly

nadya68 [22]

Answer:

The balance is $\$11,505.34$

Step-by-step explanation:

we know that

The compound interest formula is equal to

$A=P(1+\frac{r}{n})^{nt}$

where

A is the Final Investment Value

P is the Principal amount of money to be invested

r is the rate of interest in decimal

t is Number of Time Periods

n is the number of times interest is compounded per year

in this problem we have

$t=10\ years\\ P=\$7,000\\ r=0.05\\n=4$

substitute in the formula above

$A=\$7,000(1+\frac{0.05}{4})^{4*10}=\$11,505.34$

3 0

4 years ago

A card is drawn from a well-shuffled deck of 52 cards. find the probability that the card is a red card or a 10.

harina [27]

Total number of cards = 52

Find total number of red card or a 10:

Total number of cards that are red = 26

Total number of cards that are 10 but not red = 2

Total number of cards that are red card or 10 = 26 + 2 = 28

P(red card or a 10) = 28/52 = 7/13

Answer: 7/13

6 0

3 years ago

A principal of $19,500 is invested at 6% annual simple interest for 9 years. How much interest is earned?

dem82 [27]

Answer:

$10,530

Step-by-step explanation:

I = Prt

P = 19500

r = 0.06

t = 9

I= 19500 x 0.06 x 9

I = 10530

8 0

3 years ago