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Bas_tet [7]
3 years ago
6

WILL GIVE BRAINLEST TO CORRECT ANSWER A researcher is dividing a sample with a mass of 9.2 x 10-3 grams into smaller samples wit

h a mass of 2.3 x 10-4 grams.
How many smaller samples will she be able to make?
A. 4
B. 40
C. 400
D. 4,000
Mathematics
1 answer:
Pie3 years ago
8 0

Answer:

C

Step-by-step explanation:

can i have brainleist?

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Would be very much appreciated if you helped out :)
Tanya [424]

Answer:

5

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
What percent of 30 is 12?​
uysha [10]
The answer is 6 :))))))))
5 0
2 years ago
Which system of equations represents the matrix shown below?
Rudik [331]

Answer:

its b.

Step-by-step explanation: 5n − 19 + n + 7 = 144 − 6n

6n − 12 = 144 − 6n

12n = 156

n = 13

m∠z = (144−6n)°

m∠z = (144−6×13)°

m∠z = 66°

8 0
3 years ago
Select the correct answer from each drop-down menu. A self-service car wash charges $4 for the initial 5 minutes plus an additio
arlik [135]

Answer: For m\geq15

\\\Rightarrow\ y=4+0.75(m-5)\geq4+0.75(15-5)\\\Rightarrow\ y\geq4+0.75(10)\\\Rightarrow\ y\geq4+7.5\\\Rightarrow\ y\geq11.5

Nick does not has enough money to follow this recommendation.

Step-by-step explanation:

Given: A self-service car wash charges $4 for the initial 5 minutes plus an additional $0.75 for each minute after that.

Let y be the cost for car wash for m minutes then

y=4+0.75(m-5) such that at m= 5 , y=4 which is the cost for car wash (dollars) for first 5 minutes.

Also, A car enthusiast magazine recommends spending at least 15 minutes to properly wash a car.

For m\geq15

\\\Rightarrow\ y=4+0.75(m-5)\geq4+0.75(15-5)\\\Rightarrow\ y\geq4+0.75(10)\\\Rightarrow\ y\geq4+7.5\\\Rightarrow\ y\geq11.5

But Nick has $10 which is less than $11.5, so he does not has enough money to follow this recommendation.

7 0
3 years ago
Read 2 more answers
X/3 -6 =y<br><br> Solve for x
Paul [167]

Answer:

x= 3(y+6) or x = 3y + 18

Step-by-step explanation:

get the "x" by itself.

so first +6 on both sides of the equation to make it x/3=y+6

then multiply both sides by 3 to make it x=(y+6)*3

3 0
2 years ago
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