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n200080 [17]
2 years ago
9

If b/a=c/b=d/c=2/3, find a:b:c:d. (Please help e-e)

Mathematics
2 answers:
Ymorist [56]2 years ago
7 0
The answer is a 3 b 5 c8 d4
miv72 [106K]2 years ago
7 0
3 b5 c8 d4 is the answer
You might be interested in
Math help @LIEMONDER
klio [65]
First picture)
I: 5x+2y=-4
II: -3x+2y=12

add I+(-1*II):
5x+2y-(-3x+2y)=-4-12
8x=-16
x=-2

insert x=-2 into I:
5*(-2)+2y=-4
-10+2y=-4
2y=6
y=3

(-2,3)

question 6)
I: totalcost=115=3*childs+5*adults
II: 33=adults+childs
33-adults=childs

insert childs into I:
115=3*(33-adults)+5*adults
115=99-3*adults+5*adults
16=2*adults
8=adults

insert adults into II:
33-8=childs
25=childs

so it's the last option

question 7)
a) y<6 and y>2 can also be written as 2<y<6, so solution 3 exist for example
b) y>6 and y>2 can also be written as 2<6<y, so solution 7 exist for example
c) y<6 and y<2 inverse of b: y<2<6, so for example 1
d) y>6 and y<2: y<2<6<y, this is impossible as y can be only either bigger or smaller than 2 or 6

so it's the last option

question 8)
I: x+y=12
II: x-y=6

subtract: I-II:
x+y-(x-y)=12-6
2y=6
y=3

insert y into I:
x+3=12
x=9

(9,3)

question 9)
I: x+y=6
II: x=y+5

if you take the x=y+5 definition of II and substitute it into I:
(y+5)+y=6

which is the second option :)
5 0
3 years ago
X divided by 2 Equals 5
Burka [1]
The answer is ten plz thank
4 0
3 years ago
Please use the following image below in order to answer the question correctly:
kaheart [24]

Answer:

DE=145

Step-by-step explanation:

Both circles are congruent and so are the triangles, because of the radius. So mDE is also 145

3 0
3 years ago
(40 points + Brainliest)
Sladkaya [172]
The answer would be B because y=mx+b
7 0
3 years ago
Read 2 more answers
A woman went marketing for sugar for canning. In one store, sugar was 8 1/2¢ per pound and she found that she lacked 30¢ of havi
alex41 [277]
X=amount of money woman has
n=pounds of sugar 
Store #1: 8.5*n=x+30
Store #2: 8*n=x-25

multiply #2 by 17/16 to make coefficient of n same as in #1

2: 8.5*n=17/16(x-25)

Subtract #2 from #1

0=x+30-17/16(x-25)
x+30-17x/16 +25*17/16
x/16=30+25*17/16
x=480+425
=905 cents
=$9.05


5 0
3 years ago
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