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Kruka [31]
3 years ago
12

Eight more than four times a number is -12

Mathematics
1 answer:
marissa [1.9K]3 years ago
5 0
4x+8=-12
4x=-20
x=-5

just look at the equation above :)
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An hourglass consists of two sets of congruent composite figures on either end. Each composite figure is made up of a cone and a
VMariaS [17]

Answer:

126

Step-by-step explanation:

Total volume of sand = pi/3*(6^2)*(15) + pi*(6)^2*(30) = 1260*pi mm^3

So it will therefore take 1260*pi/10*pi = 126 seconds for all of the sand from the top hourglass to drip down to the bottom hourglass.

3 0
3 years ago
ABCD is a rectangle with diagonals segment AC and segment BD. If AC = 2х + 10 and BD -=56, find the value of х." О23О33О 78 O 12
Aleks04 [339]

Answer:

Step-by-step explanation:

The diagonals of a rectangle are equal.

2x + 10 = 56         That minus sign can't be there. Subtract 10 from both sides.

2x  = 56 - 10         Combine

2x = 46                 Divide by 2

x = 46/2

x = 23

7 0
3 years ago
9.
alex41 [277]

Answer:  B. c = 16d + 18

I'm gonna go with c = 16d + 18

Step-by-step explanation:  letter B or letter D

Answer

5.0/5

6

Brainly User

Days : 1    2    3    4 →→→→→→D(X axis)

Rent a Truck:  34   50  66    82→→→→→→R(Y axis)

As  you can observe from number of Days and Amount to rent a truck , if you rent for a day the price being $ 34 and with increase in Day the rent increases by $ 16.

Plotting the point on graph , found that these points are collinear.

So, we can Represent this relation between days and Rent in equation of two variables representing a line.

Two point formula of line:

 →→Equation of line passing through two points  

So , line representing Days and rent is :

So, the rule representing Days and Rent is:  16 D - R + 18=0

...............................................................................................................................................

The answer is 18

If you subtract 47-29=18

Then if you subtract 47-65=18 the pattern is to add 18

7 0
2 years ago
Two cars are traveling in the same direction. the first car is going 40 mph and the second car is going 55 mph. the first car le
jarptica [38.1K]
I hope this helps you




distance=speed×time



first cars time t




second cars time t+3



same distance


distance=55.t


distance=40. (t+3)



55t=40 (t+3)



55t-40t=120


15t=120


t=8


t+3=11
4 0
3 years ago
Is 3x+5 congruent to 5x-1
Licemer1 [7]
Yes it is congruent to5x-1
7 0
2 years ago
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