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Rudik [331]
2 years ago
12

The population of a city increased from 21,400 to 27,700 between 2007 and 2016. Find the change

Mathematics
1 answer:
WITCHER [35]2 years ago
6 0

Answer:

700

Step-by-step explanation:

2016 - 2007 = 9

27,700 - 21,400 = 6300

6300 / 9 = 700.

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A storekeeper has two kinds of flour, one selling for 65 cents per pound, and the other selling for 95 cents per pound. How many
Murrr4er [49]

Answer:

The amount of 65 cents per pound flour to use is 40 pounds and the amount of 95 cents per pound flour to use is 60 pounds

Step-by-step explanation:

Let

x ----> amount of 65 cents per pound flour to use

y----> amount of 95 cents per pound flour to use

we know that

x+y=100 ----> y=100-x ----> equation A

0.65x+0.95y=0.83(100) ----> equation B

substitute equation A in equation B

0.65x+0.95(100-x)=0.83(100)

Solve for x

0.65x+95-0.95x=83

0.95-0.65x=95-83

0.30x=12

x=40\ lb

Find the value of y

y=100-40=60\ lb

therefore

The amount of 65 cents per pound flour to use is 40 pounds and the amount of 95 cents per pound flour to use is 60 pounds

4 0
3 years ago
Read 2 more answers
What is the approximate volume of a cylinder with a diameter of 10 meters and a height of 5 meters? Use 3.14 for pi. A. 392.5 m3
EastWind [94]
For cylinder
d=10m
So r=5m
h=5m
volume=pi×r^2×h
=3.14×5×5×5
=3.14×125
=392.5m^3
So option a is correct.
3 0
3 years ago
Read 2 more answers
Chris sells roses for $25.99 a bunch. At the end of the day he has collected $285.89. How many bunches of roses did he sell
Kryger [21]
11 bunches
In order to find how many bunches he sold, do 285.89/25.99
hope this helps!
3 0
3 years ago
Read 2 more answers
an Olympic sized pool which holds 660000 gallons of water is only 63% full. how many gallons of water are in the pool
user100 [1]
415800 gallons of water will be in the pool when it is 63% full

5 0
3 years ago
Read 2 more answers
Evaluate the sin, cos and tan for 120deg without using a calculator
Yakvenalex [24]

Using equivalent angles, we have that the measures are given as follows:

  • \sin{120^\circ} = \frac{\sqrt{3}}{2}
  • \cos{120^\circ} = -\frac{1}{2}
  • \tan{120^\circ} = -\sqrt{3}

<h3>What are equivalent angles?</h3>

Each angle on the second, third and fourth quadrants will have an equivalent on the first quadrant.

120º is in the second quadrant, hence the equivalent on the first quadrant is:

180º - 120º = 60º.

The sine on the second quadrant is positive, hence:

\sin{120^\circ} = \sin{60^{\circ}} = \frac{\sqrt{3}}{2}

The cosine on the second quadrant is negative, hence:

\cos{120^\circ} = \cos{60^{\circ}} = -\frac{1}{2}

The tangent is given by the <u>sine divided by the cosine</u>, hence:

\tan{120^\circ} = \frac{\sin{120^\circ}}{\cos{120^\circ}} = -\sqrt{3}

More can be learned about equivalent angles at brainly.com/question/24787111

#SPJ1

5 0
2 years ago
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