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masha68 [24]
3 years ago
8

During 2006, a swimming lesson at a particular school lasted 45 minutes

Mathematics
1 answer:
maria [59]3 years ago
8 0
Percent change =100%*(new value-old value)/(old value)
If result is positive, it is an increase. If the value is negative it is a decrease.
100%*(50-45)45=100% *(5/45) =11.11 %

Hope this helps and please mark me as brainlest and like:)
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Suppose a company has fixed costs of $5000 and variable costs per unit of 3 4 x + 1350 dollars, where x is the total number of u
liberstina [14]

Answer:

.

Step-by-step explanation:

3 0
3 years ago
The Henderson family runs a farm. A portion of the soil on their farm will not be used. What is the area of the portion of the s
Savatey [412]

Answer:

(C)221.5 miles

Step-by-step explanation:

Given a triangle with two sides a and b and an included(an angle between the two given sides) angle \theta,

Area of the Triangle =\dfrac12 ab\sin \theta

a=32$ miles\\b=23 miles\\\theta =37^\circ

Therefore, The area of the portion that will not be farmed

=\dfrac12 \times 32 \times 23 \times \sin \37^\circ\\=221.47\\\approx 221.5$ square miles

The correct option is C.

8 0
3 years ago
Round 81.139 to the nearest tenth
Romashka [77]
I would round it to 81.1. If the .039 was 5 or over, I probably would have gone to 81.2. 

Hope I helped! Have a nice day!
3 0
3 years ago
Please help
tankabanditka [31]

Answer: (2a+2b,2c)

the first one

Step-by-step explanation:

you can add or subtract letter such as *a or *b so you "add" them which is 2a+2b and "y" for point B is 2c so it stays the same

sorry i such at explaining

4 0
4 years ago
Please show me how to solve ... -12x - 17 = -89
NeTakaya
Hey there again!

First , let's add 17 on each of your sides (we have to get the "X" by itself , right?

Like: -12x - 17 + 17
= -89 + 17

-89 + 17 = -72

So, divide by -12 on each of your sides since both numbers goes into 12

Like: 12x / -12 = -1

= -72 / -12 = 6

X = 6

Good luck on your assignment and enjoy your day!

~MeIsKaitlyn:)
5 0
3 years ago
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