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ahrayia [7]
3 years ago
13

Solve the system of linear equations by elimination X + 3Y =5 -x -y = -3

Mathematics
1 answer:
Dmitry [639]3 years ago
5 0

Answer:

x + 3y = 5

-x - y = -3

2y = 2

y = 1

x + 3 = 5

x = 2

(2,1)

Step-by-step explanation:

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a person with typical deductions earning $75,000 per year would have saved 2% of their income plus $850 in federal taxes. How mu
AURORKA [14]
Am pretty sure you should add 2 to both of the numbers than multiple I THINK.
7 0
3 years ago
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Andre has a summer job selling magazine subscriptions. He earns $25 each week plus $3 for every subscription he sells. Andre hop
Strike441 [17]

Answer: 25 + 3n

Step-by-step explanation:

Hi, the answer is lacking the last part:

<em>Write an expression for the amount of money he makes this week. </em>

So, to answer this we have to write an expression:

The fixed amount that he earns per week (25) plus the product of the amount he earns per subscription (3) and the number of subscriptions sold (n) , must be equal to his weekly earnings.

Mathematically speaking:

25 + 3n

Feel free to ask for more if needed or if you did not understand something.  

7 0
3 years ago
1: 1/2 km equals to how many metres?
VMariaS [17]
1.
km=kilometers
kilo=1000
1 km=1000meters
so
1/2km= 1/2 times 1000=1000/2=500meters


2. 1/4 km=1000/4=250 meters

3. 1/5 km=1000/5=200 meters

4. 2/5 km=2000/5=400 meters

5. 3/4 km=3000/4=750 meters

6. 1/8 km=1000/8=125 meters
7 0
3 years ago
A candy store sells 7 packs of bubble gum for $29.33. How much would it cost to buy 3 packs?
alexira [117]

Hi there,

Recall how 7 packs for gum sell for $29.33.

Before we can calculate how much it would cost to sell 3 packs of gum, we must calculate how much it would first cost to sell 1 pack of gum.

The cost of 1 pack of gum is the current total cost divided by the total amount of gum packs you receive at that price.

In this case, the total cost is $29.33, and we receive 7 gum packs at that price.

Therefore, the cost of 1 pack of gum is \frac{29.33}{7}, which equates to $4.19.

We now know that each pack of gum costs $4.19.

Hence, 3 packs of gum would cost three times that price.

4.19 * 3 = 12.57

The cost of 3 packs of gum is $12.57.

Hope that helps!

5 0
3 years ago
Read 2 more answers
PLS HELP!!!!
lara31 [8.8K]
The answer is <span>D. –1 + 2 = 1

</span>
8 0
3 years ago
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