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kow [346]
3 years ago
10

An element with a mass of 320 grams decays by 5.1% per minute. To the nearest tenth of a minute, how long will it be until there

are 200 grams of the element remaining?
Mathematics
1 answer:
HACTEHA [7]3 years ago
7 0

Answer:

X=9

Step-by-step explanation:

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Need help with number 26 and 27
Vlad1618 [11]
26
thursday 138 (46 x 63 / 21 = 138)
friday 99 (33 x 63 / 21 = 99)

27.
 100% - 80% = 20%

20% = 0.2

150 * 0.2 = 30

answer: 30 students chose math




4 0
3 years ago
In circle p, st = 30 ft. what is the circumference of the circle? 45p ft 15p ft 10p ft 30p ft
skelet666 [1.2K]
The answer to this question is:

<span>In circle p, st = 30 ft. what is the circumference of the circle?
</span><span>"30p ft"

Hope this helped, Taylenlane7544
Your Welcome :)
</span>
5 0
3 years ago
Nadia made 4 loaves of bread. she used 3/8 teaspoon of baking soda for each loaf.how many teaspoon of bvakingsoda Nadia used alt
daser333 [38]
For every loaf of bread she uses 3/8 teaspoons. She makes 4 loaves of bread. 
3/8*4 = 12/8 = 3/2 = 1.5 teaspoons
3 0
3 years ago
Which equation, when graphed, has x-intercepts at (-1,0) and (-5,0) and a y-intercept at (0, -30)?
Vladimir [108]

If a function has roots -1 and -5, it must be in the form

f(x)=a(x+1)(x+5)

We can fix the coefficient a by imposing the passing through (0,-30):

f(0)=-30=a(1)(5)\iff a=-6

So, the function is

f(x)=-6(x+1)(x+5)

7 0
3 years ago
Please answer this question now in two minutes
Nataly_w [17]

Answer:

Ray WV and Ray WX.

Step-by-step explanation:

A ray is a line that has a fixed starting point, but no end points. It extends infinitely. You usually list points based on the way it is facing.

Hope this helps!

5 0
3 years ago
Read 2 more answers
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