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GREYUIT [131]
3 years ago
14

9x - y = 45 solve for y

Mathematics
2 answers:
Lyrx [107]3 years ago
8 0
First you subtract 9x from y and you get 45 - 9x = -y and you don't want negatives so you switch all the signs to get y = -45 + 9x
prisoha [69]3 years ago
3 0

Answer:

y=9x-45

Step-by-step explanation:

Given: 9x-y=45

We are given an equation of x and y. We need to solve for y.

It means to isolate variable y. We have to move all variable and constant right side and leave y at left side.

9x-y=45

Subtract 9x both sides (Subtraction property of equality)

9x-9x-y=-9x+45

cancel like term

-y=-9x+45

Divide each side by -1 (Division property of equality)

y=9x-45

Hence, The equation solve for y=9x-45

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10x – 5y + 2x – Зу<br> Simplify this expression
12345 [234]

Answer:

12x-8y

Step-by-step explanation:

add 10x and 2x, this gets 12x, and add -5y with -3y, which gives you -8y. Add both of these values together and you get 12x-8y

4 0
3 years ago
Read 2 more answers
A recipe for pasta dough says, “Use 150 grams of flour per large egg.”
guapka [62]
You need 3 eggs because 450/150 is 3
6 0
3 years ago
Given f(x)=x-7 and h(x)=2x+3 write the rule for f(h(x))​
cestrela7 [59]

Step-by-step explanation:

f(x)=x-7&h(x)=2x+3 then fohx)=2x-4

6 0
3 years ago
If the couple has four children, what is the probability that at least one child will have g alactosemia?
kipiarov [429]
This is more a biology question.
Galactosemia is an autosomal recessive genetic disease.
The probability depends on the prevalence (P) of carriers in the region.
It takes two carrier parents for a child to develop galactosemia, with probability of 1/4 because it is a recessive disease.
Therefore, under random conditions, the probability of both parents being carriers is P², and the probability that a particular child developing galactosemia is p=P²/4.

The probability of having NO (x=0) child out of n=4 developing the disease can be estimated by the binomial distribution, 
P(X=x)=C(n,x)p^0(1-p)^n
which means, for p=P²/4, n=4, x=0
P(X=0)=C(4,0)p^0(1-p)^4
=1*1*(1-p)^4
=(1-p)^4

Consequently, the probability that at least one child will have galactosemia
P(X>0)=1-P(X=0)
=1-(1-p)^4

From the published incidence (p) of the disease in the US estimated to be between 1/30000 to 1/60000 [ ref. nih document # PMC4413015 ], we could use p=1/45000, giving
P(X>0)
=1-(1-p)^4
=1-(1-1/45000)^4
=1-\frac{4100260512149820001}{4100625000000000000}
=\frac{364487850179999}{4100625000000000000}
=8.8886*10^{-5}
=0.0000889 (approximately)
3 0
3 years ago
Please help as soon as possible
Jlenok [28]

18. 23 units

19. x = 1

5 0
3 years ago
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