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erica [24]
3 years ago
10

Solve -4/9x = 3/5. Check your SOLUTION pls if anyone can answer pls do now I have to know this

Mathematics
1 answer:
Flauer [41]3 years ago
6 0

Answer:

x= -27/20

Step-by-step explanation:

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If Ryan pays his car insurance for the year in full, he will get a credit of $28. If he chooses to pay a monthly premium, he wil
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The one year-plan would have a credit, so it would have a positive sign. In the monthly plan, there is a high risk of being late in paying the bills. That's why a fine of $10 is given for every month that you are late. If you are not time conscious and you end up being late every month, it would give you a negative balance.
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3 years ago
30 subtracted from 4 times a number is greater than the opposite of 10
irakobra [83]
If you're trying to make an inequality, it would be:

30 - 4x > -10. 
4 0
3 years ago
1. Stephanie would like to make a 5 lb nut mixture that is 60% peanuts and 40% almonds. She has several pounds of peanuts and se
Crazy boy [7]
Answers:

(a) p + m = 5
     0.8m = 2

(b) 2.5 lb peanuts and 2.5 lb mixture

Explanations:

(a) Note that we just need to mix the following to get the desired mixture:

     - peanut (p) - peanuts whose amount is p
     - mixture (m) - mixture (80% almonds and 20% peanuts) that has an amount of m; we denote this as

By mixing the peanuts (p) and the mixture (m), we combine their weights and equate it 5 since the mixture has a total of 5 lb.

Hence, 

p + m = 5

Note that the desired 5-lb mixture has 40% almonds. Thus, the amount of almonds in the desired mixture is 2 lb (40% of 5 lb, which is 0.4 multiplied by 5).

Moreover, since the mixture (m) has 80% almonds, the weight of almonds that mixture is 0.8m.

Since we mix mixture (m) with the pure peanut to get the desired mixture, the almonds in the desired mixture are also the almonds in the mixture (m). 
So, we can equate the amount of almonds in mixture (m) to the amount of almonds in the desired measure.

In terms mathematical equation,

0.8m = 2 

Hence, the system of equations that models the situation is 

p + m = 5
0.8m = 2

(b) To solve the system obtained in (a), we first label the equations for easy reference,

(1) p + m = 5
(2) 0.8m = 2

Note that using equation (2), we can solve the value of m by dividing both sides of (2) by 0.8. By doing this, we have

m = 2.5

Then, we substitute the value of m to equation (1) to solve for p:

p + m = 5
p + 2.5 = 5   (3)

To solve for p, we subtract both sides of equation (3) by 2.5. Thus,

p = 2.5

Hence, 

m = 2.5, p = 2.5

Therefore, the solution to the system is 2.5 lb peanuts and 2.5 lb mixture.  







 
7 0
4 years ago
Please help me solve this and what are the answers
mixas84 [53]

Answer:

5y=-2x - 3x

5y = -5x

5y + 5x = 0

5(y + x ) = 0

maybe

7 0
3 years ago
The number of major faults on a randomly chosen 1 km stretch of highway has a Poisson distribution with mean 1.7. The random var
tiny-mole [99]
The probability can be modeled using the following formula:
P(X =3)
wherein X follows the density 
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Now for k = 3 we get:
P(X=3)=\frac{1.7^3e^{-1.7}}{3!}=0.15
The probability we are looking for is 0.15.
Do you have any question ? 
6 0
4 years ago
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