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Natali5045456 [20]
3 years ago
5

the county requires 2 teachers for every 45 students. Write a proportion that gives the number t of teachers needed for 315 stud

ents.
Mathematics
2 answers:
notka56 [123]3 years ago
7 0

Answer:

14

Step-by-step explanation:

if it's 2 teachers for every 45 students, I assume you would divide 315 by 45 which would give you 7 groups of 45. now for every group you would require 2 teachers. and 2 times 7 is 14.

diamong [38]3 years ago
3 0
Approximately you would need 14 teachers
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Solve 9/10=z/8 . Round to the nearest tenth.
kompoz [17]
\boxed {Question}
\frac{9}{10} =  \frac{z}{8}

\boxed {Cross \  multiply}
10z = 8 \times 9

\boxed {Evaluate}
10z = 72
z = 72 \div 10
z = 7.2

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3 years ago
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Is 8 x 2/8 less than 8 or greater than 8
Orlov [11]
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2 years ago
Read 2 more answers
Write the equation of a line in slope-intercept form parallel to the line y = -2x + 7 and contains (-1, 3).
JulsSmile [24]

Answer:

The answer is

<h2>y = - 2x + 1</h2>

Step-by-step explanation:

Equation of a line is y = mx + c

where

m is the slope

c is the y intercept

To find the equation of the parallel line we must first find the slope of the original line

From the question the original line is

y = - 2x + 7

Comparing with the general equation above

Slope = - 2

Since the lines are parallel their slope are also the same

Slope of parallel line = - 2

The equation of the line using point (-1, 3) and slope - 2 is

y - 3  =  - 2(x + 1) \\ y - 3 =  - 2x - 2 \\ y =  - 2x - 2 + 3

We have the final answer as

y =  - 2x + 1 \\

Hope this helps you

7 0
3 years ago
11.3d04
alexandr402 [8]

Answer:

yes

Step-by-step explanation: did it on test

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3 years ago
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