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3 years ago

What is 0.00000387 in scientific notation? A. 0.387 × 10–7 B. 3.87 × 10–6 C. 3.87 × 106 D. 387 × 10–8]

Mathematics

1 answer:

REY [17]3 years ago

8 0

Answer:

Step-by-step explanation:

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. On a school field trip, the school requires that there are 6 teachers for every 90 students. If 135 students attend the trip h

mr_godi [17]

Answer:

For 135 students , the number of teacher requires is 9

Step-by-step explanation:

Given as :

The number of teacher = 6

The number of student = 90

∵ For 90 students , the number of teacher requires = 6

So , For 1 student , the number of teacher requires = $\frac{6}{90}$

= $\frac{1}{15}$

∴ For 135 student , the number of teacher requires = $\frac{1}{15}$ ×135

Or, For 135 student , the number of teacher requires = $\frac{135}{15}$

So, For 135 student , the number of teacher requires = 9

Hence For 135 students , the number of teacher requires is 9 Answer

5 0

3 years ago

Find principal of a loan at 11% for 5 years with $426.25 simple interest

Ahat [919]

Answer:

$P=775$

Step-by-step explanation:

The Simple Interest Equation is $A = P(1 + rt)$

where

A = Total Accrued Amount (principal + interest)

P = Principal Amount

I = Interest Amount

t = Time Period involved in months or years

In this case, we do not know the values of the equation (A and P), but we know the amount of interest accrued

If we define our principal whit this formula, we are able to know the rest of the values:

$A-P= interest$

clearing

$A=interest+P$

replacing

$426.25 + P = P (1+(0.11(5))$

Solving

$426.25+P=1.55P$

$P-1.55P=-426.25$

$-0.55P=-426.65$

$P=\frac{-426.25}{-0.55}$

$P=775$

7 0

3 years ago

What is the sum of 2 1/3, 3 5/6 and 6 2/3

Andreas93 [3]

2 1/3+ 3 5/6+ 6 2/3
= 7/3+ 23/6+ 20/3
= 14/6+ 23/6+ 40/6
= 77/6
= 12 5/6

The final answer is 12 5/6~

5 0

3 years ago

Use the figure and flowchart Proof to answer the question which property of equality accurately completes reason C

blagie [28]

Answer:

Step-by-step explanation:

The mesa people of the Southwest adapted their homes to their arid ... dry and barren. In order ... To adapt to their environment, the Indians of the Great Basin lived in ... American Indians of the Plateau found it relatively easy to get food because ... The Southeast cultural region was good for farming because its climate has.

7 0

4 years ago

Read 2 more answers

WILL GIVE BRAINLIEST

____ [38]

Answere:

its black

Step-by-step explanation:

black is better and im right

7 0

3 years ago