2 years ago

2850

Mathematics

1 answer:

maxonik [38]2 years ago

4 0

God bless you ma’am/ sir.!!!!-8hsiwhwhjwiwis&/&):8292jwiaiia21161

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Brian has reduced his cholesterol level by 8% after his last check up. If his original level was 200, what is his cholesterol le

s2008m [1.1K]

Answer:

B. 184

Step-by-step explanation:

A proportion is an easy way to solve this:

$\frac{100\%}{200} = \frac{92\%}{x} \\ 100x = 92(200) \\ x = 92(2) \\ x = 184$

6 0

3 years ago

(-w-6)/(w^2+4w-12), how do i write this into simplest form?

PIT_PIT [208]

First factorise the top = -(w+6)
The first factorise the bottom: (w^2 + 4w -12) = (w+6) (w-2)
Therefore the two (w+6) cancels out and you are left with -1 / w-2

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2 years ago

When a=3 and b=4, what is the value of 7(a+2b)?<br><br> Solved and worked out

geniusboy [140]

Answer:

Step-by-step explanation:

7 (3 + 2*4) =

7 (3 + 8) =

7 (11) =

7 * 11 =

8 0

2 years ago

a submarine travels at an elevation of -75 3/4 ft relative to sea level then its elevation changes by - 16 3/8 what is the new e

slamgirl [31]

Answer:

$New = -92\frac{1}{8}$

Step-by-step explanation:

Given:

$x = -75\frac{3}{4}$ --- Position

$\triangle x = -16\frac{3}{8}$ --- Change

Required

Find the new position

The new position is calculated as:

$New = x + \triangle x$

$New = -75\frac{3}{4} - 16\frac{3}{8}$

$New = -75.75 - 16.375$

$New = -92.125$

$New = -92\frac{125}{1000}$

$New = -92\frac{1}{8}$

3 0

2 years ago

mote1985 [20]

The answer should be A

3 0

2 years ago