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yawa3891 [41]
3 years ago
6

Can someone explain to me how to do this

Mathematics
1 answer:
rusak2 [61]3 years ago
7 0

rank | 1st | 2nd |TOTAL
------|-----+-------|----------
a     | 6   +    9   |  =15
b     | 7   +   3    | =16
c     | 9   +   7    | =23
d     | 6   +   7    | =22
e     | 8   +  1     | =?


If you add the 1st in line a (6) and you add it to the 1st in line b (7) + the 2nd in line b (3) you get 16. Repeat the same logic/pattern to all c,d..
This is the pattern to all this puzzle;

So the before last term is :  9+6+7 = 22
and the last term : 6+8+1 = 15


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Someone please help
AleksandrR [38]

Replace y with 31:

31 = 7x -4

Add 4 to both sides:

35 = 7x

Divide both sides by 7:

x = 5

Input x = 5

6 0
2 years ago
18,000 amounts to 21,600 in 4 years at simple interest. Find the sum of
AnnyKZ [126]

Answer:

\$20,400

Step-by-step explanation:

we know that

The simple interest formula is equal to

A=P(1+rt)

where

A is the Final Investment Value

P is the Principal amount of money to be invested

r is the rate of interest  

t is Number of Time Periods

step 1

Find the rate of interest

in this problem we have

t=4\ years\\ P=\$18,000\\ A=\$21,600\\r=?

substitute in the formula above and solve for r

\$21,600=\$18,000(1+4r)

1.2=(1+4r)

4r=1.2-1

r=0.2/4=0.05

The rate of interest is 5\%

step 2

Find the sum of  money that will amount to 25,500 in 5 years, at the same rate of interest

in this part we have

t=5\ years\\ P=?\\ A=\$25,500\\r=0.05

substitute in the formula above and solve for P

\$25,500=P(1+0.05*5)

P=\$25,500/(1.25)=\$20,400

3 0
3 years ago
The area of a rectangle is 32 inches squared. If the length is 8 inches, what is the *perimeter* of the rectangle?
SOVA2 [1]

Answer:

Step-by-step explanation:

w (width) = 32/8

w = 4

p (perimeter) = 2w + 2l

p = (2 x 4) + (2 x 8)

p = 8 + 16

p = 24

5 0
2 years ago
Which of the segments below is a secant?
sveticcg [70]
The secant of a circle is any line that intersects two points on the circumference of the circle.

In the given circle, the lines EF and XY intersects two points on the circumference of the circle and hence are secants of the circle.

From the answer options given, the secant line is line XY.
7 0
3 years ago
Read 2 more answers
blake bought 6 light bulbs that contained 8 light bulbs each. he then used 14 of the light bulbs for his science project. how ma
Mekhanik [1.2K]
34 light bulbs are left
3 0
3 years ago
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