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faust18 [17]
2 years ago
10

15 = 2c + 7 Solve for c

Mathematics
2 answers:
DaniilM [7]2 years ago
5 0

Step-by-step explanation:

15=2c+7

15-7=2c

8=2c

8/2=c

4=c

c=4

lozanna [386]2 years ago
4 0

Answer:

c = 4

Step-by-step explanation:

15-7=2c

8= 2c

c = 8/2

c=4

hope this helps you!

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Para hacer un polideportivo se ha comprado una parcela triangular cuyos lados miden 300m , 375m y 362m .
NeTakaya

Answer:

3334650.54 euros

Step-by-step explanation:

We can calculate the area of the triangle knowing its sides by means of Heron's formula:

A = \sqrt{p(p-a)(p-b)(p-c)}

Where p is the semi-perimeter is equal to:

p = \frac{a+b+c}{2}

now, we replace:

p = \frac{300+375+362}{2}

p = 518.5

now, we replace this value and we are left with:

A = \sqrt{518.5(518.5-300)(518.5-375)(518.5-362)}

A = 50440.94 m^2

Now to know the price, we multiply by the price of the square meter:

50440.94 * 66.11 = 3334 650.54

In other words, the value of the parcel is 3334 650.54 euros

7 0
3 years ago
A buliding 78ft high casts a 195ft shadow on sarah. sarah casts a 10ft shadow. how tall is sarah?
sergejj [24]

Answer:

4 ft

Step-by-step explanation:

195/78=2.5

10/2.5=4

5 0
2 years ago
Only four countries have not officially adopted the metric system<br><br> True or false?
irinina [24]
True they are only being four countries that have not adopted the metric System
4 0
3 years ago
Read 2 more answers
NEED THIS IN TEN MINS HELP <br><br> NO LINKS OR YOU WILL BE REPORTED
Verdich [7]

Answer:

a = 34m²

Step-by-step explanation:

Rectangle

a = 3 * 6 = 18

Trapezoid

a = 4 * (2 + 6)/2 = 16

Combined

a = 18 + 16

a = 34

8 0
2 years ago
At rite aid, you can buy 5bags of skittles for $5.25. At Duane trade, you can buy 4 bags of skittles for $5.00. At CVS, you can
Ann [662]
Rite aid : 5.25 / 5 = 1.05 per bag
duane trade : 5/4 = 1.25 per bag
cvs : 9/10 = 0.90 per bag

better unit price is CVS
5 0
3 years ago
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