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iogann1982 [59]
3 years ago
7

Which equation matches the sentence?

Mathematics
1 answer:
victus00 [196]3 years ago
4 0
Hello,

1: 9n-3=21 ==>B

2: 3n+9=21 ==>A

3: 9n-3=21 ==>B

4: 3n-9=21 ==>C

I wish to have understood all those sentences.
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Please help with number 34 :) thank youu
kotykmax [81]
Proportion if im not mistaken
is over of percent over 100
14 over 168 and x over 100 . 14 times 100 divided b 168 i believe .
5 0
3 years ago
What interest is needed to earn $137.50 on a deposit of $500 for five years if it earns simple interest?
sineoko [7]

Answer:

5.5%

Step-by-step explanation:

Given data

Simple interest =  $137.50

Principal= $500

time = 5 years

We want to find the rate  R

Simple interest= PRT/100

137.50 = 500*R*5/100

137.50=2500R/100

cross multiply

137.5*100= 2500R

13750= 2500R

divide both sides by 2500

R= 13750/2500

R=5.5%

Hence the rate is 5.5%

4 0
3 years ago
Hey, what is 2000x5?
Gnoma [55]

Answer:

Step-by-step explanation:

2000x5=10,000

3 0
3 years ago
What’s the solution for 6(2m - 3) - 3m= 2m - 18 + m
katen-ka-za [31]

Answer:

12m-18-3m=2m+m-18

9m-18= 3m-18

9m-3m=18-18

6m=0

m=0/6=0

Step-by-step explanation:

5 0
4 years ago
Find the area of the polygon
antoniya [11.8K]

Looks like the larger triangle is equilateral (well, it must be, otherwise finding the area is impossible). That means the inradius is 6 and the outradius is 12, which is to say the altitudes (equal to the height, in this case) of this triangle have length 6 + 12 = 18.

In the smaller right triangle, the length of the missing leg is half the base of the larger triangle; call this length \frac b2 By the Pythagorean theorem,

6^2+\left(\dfrac b2\right)^2=12^2\implies b=12\sqrt3

Then the area of the larger triangle is

\dfrac12(12\sqrt3)(18)=\boxed{108\sqrt3}

3 0
4 years ago
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