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alukav5142 [94]

3 years ago

7

Betsy has ten and one half ounces of gold and and uses four fifths of it to make earrings. How much gold does she use to make th

e earrings?

1 answer:

zloy xaker [14]3 years ago

5 0

Answer:8.4

Step-by-step explanation:

10.5 oz

10.5*4/5=8.4

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What is the awnser to 92 times 68

konstantin123 [22]

92 times 68 is 6,256

5 0

4 years ago

PLEASE HELP 20 POINTS

Anika [276]

Hello!

A sample of Bromine-82 begins at 80 mL. We are given that this value will decrease by half of its current amount every 35 hours. First, we'll determine the number of times that 35 goes into 140. This will reveal the number of times we should divide the sample by 2:

140 ÷ 35 = 4

We have now proven that there are 4 periods of 35 hours in 140 hours. This means that we will divide the sample in half a total of 4 times, as follows:

1. 80 ÷ 2 = 40
2. 40 ÷ 2 = 20
3. 20 ÷ 2 = 10
4. 10 ÷ 2 = 5

We have now proven that an 80 mL sample of Bromine-82 will be reduced to only 5 mL after 140 hours. Therefore, the correct answer is 5 mL.

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7 0

3 years ago

Read 2 more answers

If n is divided by 7 the remainder is 3. What is the remainder if 3n is divided by 7?

Keith_Richards [23]

So, if n Divided by 7 = 3 , then n must be 21, because if you do 3 x 7 it equals 21, so now we know n is 21, then that means its 3 x 21 divided by 7 which is 9. Hope i helped ^-^

5 0

3 years ago

Can anyone please help i have no one to help me

adoni [48]

Answer:

<em>Graph below</em>

Step-by-step explanation:

<u>Transformations</u>

Triangle ABC has coordinates A=(-4,2) B=(-2,6) C=(3,2)

We'll use the transformation (x,y) -> (2x, y+3) to map it to the triangle A'B'C'. Let's calculate the coordinates:

A'=(-8,5)

B'=(-4,9)

C'=(6,5)

The image below shows both triangles in the same grid

8 0

3 years ago

Population in a Small Town, USA was 5,054 in 2007. The populations increase by 2% annually. Show and explain all work.

kakasveta [241]

Answer: a. $f(x)=5054(1.02)^x$

b. The population in 2032 will be 8292.

Step-by-step explanation:

Exponential growth equation: $y=a(1+r)^x$ , where a = initial value , r = growth rate, x = time period

Given: a = 5054 , r= 0.02

a. Required exponential growth function: $f(x)=5054(1+0.02)^x$

$f(x)=5054(1.02)^x$

b. For 2032, x= 25

$f(25)=5054(1.02)^{25}$

$\approx8291.62\approx8292$

The population in 2032 will be 8292.

5 0

3 years ago