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AVprozaik [17]
3 years ago
12

20 apples cost R12.What will 16 of the apples cost?​

Mathematics
1 answer:
S_A_V [24]3 years ago
8 0

Answer:

192

Step-by-step explanation:

you take 12 and multiple it by 16:

R12×16=R192

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What is the total value in cents of x quarters, y nickels, and z pennies?
lesya692 [45]

Answer:

25x + 5y + z cents

Step-by-step explanation:

1 quarter is worth 25 cents.

1 nickel is worth 5 cents.

1 penny is worth 1 cent.

Therefore, x quarters, y nickels and x pennies will be worth:

(x * 25) + (y * 5) + (z * 1)

= 25x + 5y + z cents

4 0
3 years ago
The output of a function in 7 more than 3 times the input. find the input when the output is -8
kiruha [24]
7+ 3x= -8 
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-15 divided by 3= -5
-5 is the answer
4 0
4 years ago
8. What is the arc length, rounded to the nearest hundredth, of a semicircle with radius 5
abruzzese [7]

Answer: D                                                                                                                   Step-by-step explanation:  

4 0
3 years ago
The sum of the areas of two circles is 8pie square meters. Find the length of a radius of each circle ifone of them is twice as
NeX [460]
Nice

area=pir^2
the areas are
pir^2+pi(2r)^2
they add to 8pi

8pi=pir^2+pi(2r)^2
undistribute pi
8pi=pi(r^2+(2r)^2)
divide both sides by pi
8=r^2+(2r)^2
expand
8=r^2+4r^2
add
8=5r^2
divide by 5
8/5=r^2
sqrt both sides
√(8/5)=r
double since it is double
2√(8/5) is radius of bigger aka (4√10)/5

radius=(4√10)/5
5 0
3 years ago
Slove for x <br><br> 3x+9y=24
7nadin3 [17]

Answer:

Step-by-step explanation:

Simplifying

x = 8 + 3y

4 0
2 years ago
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