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sveticcg [70]
3 years ago
9

Y varies directly with x. When y is 105, x is 7. What is k

Mathematics
1 answer:
marta [7]3 years ago
6 0

Answer:

Given:

y

varies inversely with

x

.

So, we can write it as:

y

∝

1

x

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Can someone help me with this
Vikentia [17]
<1 and <7 measures 42 degrees
2 and 5 are alternate interior angles from the figure above
7 0
3 years ago
14-3(5t-12)=1-(20t+1)<br> How am I supposed to do this?
Nuetrik [128]
Expand by multiplying out:

14-15t + 36 = 1 -20t -1,
Because of the minus before the bracket, it changes the sign inside the bracket
-15t + 20t  = 1-1-14-36  Rearranging the ts on one side and the numbers on other
                                   side.
5t = -50  Divide both sides by 5.
t =  -50/5
t = -10.


5 0
3 years ago
A square tile has an area of 148 in2.
aivan3 [116]
Yes you are correct B is the right answer
3 0
3 years ago
the sum of the digits of a certain two-digits number is 7.Reversing its digits increases the number by 9.What is the number
rusak2 [61]
Unit digit=y
tens digit=x
the number: 10x+y

We suggest this system of equations:
x+y=7
(10y+x)=(10x+y)+9
we solve it by substitution method.
x=7-y
10y+(7-y)=(10(7-y)+y)+9
9y+7=70-10y+y+9
9y+10y-y=70+9-7
18y=72
y=72/18=4

x=7-y
x=7-4=3

number=10x+y=10*3+4=30+4=34

solution: the number: 34

To check:
3+4=7
43=34+9
8 0
3 years ago
Read 2 more answers
How do you solve d+12=2 using mental math
n200080 [17]
By minusing 12 to both sides
d+12=2
   -12=-12
d      =-10
5 0
3 years ago
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