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Tems11 [23]
3 years ago
13

To control his weight, Joel reduced his calorie intake from 2500 calories to 1950 calories each day. What was his percent of dec

rease for calorie intake?
SHOW ALL WORK PLZ
Mathematics
2 answers:
kotegsom [21]3 years ago
7 0
22 of this is begging decreased he’s consuming 78
garik1379 [7]3 years ago
5 0

Answer:

22% decrease. Joel is consuming 78% of the amount of calories he previously consumed.

Step-by-step explanation:

1950 = 2500x

x = 1950 / 2500

x = 0.78

1 - 0.78 = 0.22

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Step-by-step explanation:

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Factorise the following using the Difference of Two Squares or Perfect Squares rule: a) (2x-2)^2 - (x+4)^2 b) (3x+4) (3x-4)
emmainna [20.7K]

Answer:

Step-by-step explanation:

Hello, please consider the following.

a)

(2x-2)^2 - (x+4)^2 \\\\=(2x-2-(x+4))(2x-2+x+4)\\\\=(2x-2-x-4)(3x+2)\\\\=\boxed{(x-6)(3x+2)}

b)

(3x+4) (3x-4)\\\\=(3x)^2-4^2\\\\=\boxed{9x^2-16}

Thank you.

7 0
3 years ago
What is the value of the y coordinate of the solution to the system of equations
omeli [17]

The answer to this question is 1, because the to lines intersect at point (3, 1).

I hope this helped!

3 0
3 years ago
Jane and Sali cycled along the same 63km route. Jane took 3.5 hours to cycle the 63km.
Arisa [49]

Answer:

sali's speed was 18.75 km/h

Step-by-step explanation:

Jane took 3.5 hours to cycle the 63 km.

As,   , so the speed of Jane will be:  

Suppose, the speed of Sali is   km/h

Sali caught up with Jane when they had both cycled 30 km.

So, the time required for Jane to cycle 30 km  and the time required for Sali to cycle 30 km  

Given that, Sali started to cycle 4 minutes or  after Jane started to cycle. So, the equation will be.......

5 0
3 years ago
Given the function f(x) = 2x, find the value of f−1(32).
sergeinik [125]

Answer:

find the inverse

exchange x for y and  y for x

y=2x

then

x=2y---------> clear y

y=x/2

f−1(x)=x/2

for x=32

f−1(32)=32/2----------> 16

the answer is 16

3 0
2 years ago
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