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2 years ago

Expand the expression 8(x-2)

Mathematics

1 answer:

jeyben [28]2 years ago

7 0

Answer:

8x - 16

Step-by-step explanation:

8(x−2)

=(8)(x+−2)

=(8)(x)+(8)(−2)

=8x−16

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Last year, Susan had 10,000 to invest. She invested some of it in an account that paid 6%

katrin2010 [14]

Answer:

In the account that paid 6% Susan invest $\$6,000$

In the account that paid 5% Susan invest $\$4,000$

Step-by-step explanation:

we know that

The simple interest formula is equal to

$I=P(rt)$

where

I is the Final Interest Value

P is the Principal amount of money to be invested

r is the rate of interest

t is Number of Time Periods

Part a) account that paid 6% simple interest per year

in this problem we have

$t=1\ years\\ P=\$x\\r=0.06$

substitute in the formula above

$I1=x(0.06*1)$

$I1=0.06x$

Part b) account that paid 5% simple interest per year

in this problem we have

$t=1\ years\\ P=\$10,000-\$x\\r=0.05$

substitute in the formula above

$I2=(10,000-x)(0.05*1)$

$I2=500-0.05x$

we know that

$I1+I2=\$560$

substitute and solve for x

$0.06x+500-0.05x=560$

$0.01x=560-500$

$0.01x=60$

$x=\$6.000$

therefore

In the account that paid 6% Susan invest $\$6,000$

In the account that paid 5% Susan invest $\$4,000$

6 0

3 years ago

Pleaseeeee help is it -2 or 16 btw it’s geometry and it needs to be counterexample

Yakvenalex [24]

Answer:

false

Step-by-step explanation:

x can be equal to 2 or -2 since square root of a number can't be negative

4 0

3 years ago

Kitty has 13 papers .She had drawn 5 pictures. Then Her Little Brother Ripped 5 more. How may paper does Kitty have left. Show y

podryga [215]

13-5=8
8-5=3
so the answer would be:
3

Hope this helps

5 0

2 years ago

Read 2 more answers

Page

Karolina [17]

I think we have to see the image to answer you question

7 0

3 years ago

A company is preparing to launch a new web site to sell its products. From past experience, they know that purchases at the site

gtnhenbr [62]

Answer:

a. 0.333

b. 0.657

c. 1.667

d. -4.07

Step-by-step explanation:

a. Expected time of the first purchase is 10/30 = 0.333

b. Probability for time of 0.14 minutes before first purchase is :

e^-rt, r = 30/10 = 3 , t = 0.14

e^ -3 * 0.14 = 0.65704

c. Expected time until 5th order :

1 / [30/10] * 5 = 1.6667

d. Probability that 8th purchase will occur between 1.33 and 2 minutes ;

[30/10 ] / [ 1/2] = 6

Chi squared distribution ;

1.33 * 6 - 2 * 6 = -4.02

7 0

3 years ago