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3 years ago

15

When adding 51.2 to a certain number, the sum is 56.05, as seen below. What number should go in the box to complete the addition

problem?

2 answers:

love history [14]3 years ago

8 0

Answer:

Step-by-step explanation:

4

lara31 [8.8K]3 years ago

6 0

Answer: Oof

Step-by-step explanation:

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A radioactive substance decays exponentially with a half-life of 500 years. After 1500 years, what percent of the radioactive ma

Talja [164]

12.5%, every 500 years you take away half of the substance (50%) -> 25% -> 12.5%
you divide your number 3 times because 1500/500=3

7 0

3 years ago

What is the nth term rule for the liner sequence below 15,7,-1,-9,-17

Volgvan

Answer:

-8n+7

Step-by-step explanation:

the difference between the values is 8, as it decreases by 8, it withh be 8n

It does not start at 8 though, so you do 15-8 to find the different which is added on which is 7 in this case

8 0

3 years ago

Billy ate 30% of a pizza and Bonnie ate 3/8 of a pizza who ate more

Serggg [28]

Bonnie ate more because 3/8 is 37.5.
Hope this helps!

6 0

3 years ago

Can someone answer this question please answer it correctly

Mashcka [7]

Answer:

40/100

Step-by-step explanation:

I'm not sure if its correct, but if there is a total of 100 magazines and there are 40 woman magazines it must be 40/100

7 0

3 years ago

What is the degree measure of an arc 4(pi) ft. long in a circle of radius 10 ft.?

olya-2409 [2.1K]

Hey there!

$20*pi/360=4*pi/x solve for x x=360*4*pi/(20*pi)=72 degrees$

Your correct answer would be. . .

$\boxed{\boxed{72}}$

Hope this helps.
~Jurgen

3 0

4 years ago

Read 2 more answers