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Black_prince [1.1K]
3 years ago
6

Solve each system using substitution. Check your answer 2x+2y=38 y=x+3

Mathematics
1 answer:
Mrac [35]3 years ago
4 0
Your answer would be X=8 and Y=11.
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A 2-liter bottle of juice costs $2.80. A box containing six 1/2 liter bottles sells for $3.90. Which option has a higher cost pe
muminat

Answer:

A. 2-liter bottle;$1.40

Step-by-step explanation:

We have to find out which option has the higher cost per liter. To do this we must find out how much each option would be if it was a liter.

1st set up each equation
2-liter = $2.80 we can divide by 2 on both sides of the equal sign and we get 1 liter = $1.40.
6(1/2) liter bottles = $3.90 this becomes 3 liters = $3.90 then we divide by 3 on both sides of the equal sign and we get $1.30

2nd we compare
$1.40(2 liter bottle) > $1.30 (6 1/2 liter bottles)

3 0
1 year ago
Please help i will give brainliest
Mnenie [13.5K]

Answer:

d is the answer

7 0
2 years ago
Read 2 more answers
A stand was selling 8 mangos for 10 dollars at a farmer's market.
MaRussiya [10]
(Ms)Kisha is correct.

How?

Well, I figured this out by using common sense. 8 mangoes are 10 dollars. Since the price is higher than the amount, so it has to be at least more than one.

We could write more ratios. You can always write more ratios. You just multiply/divide both sides. Examples below:
2:5
16:20
5 0
3 years ago
-5(6n+6)=30 I need help​
Mrac [35]

Answer:

N= -2

Step-by-step explanation:

7 0
2 years ago
Joseph received a $20 gift card for downloading music. Each downloaded song costs $1.29. Explain how to write and solve an inequ
poizon [28]
<span>Let x be the number of songs downloaded.
Each song is $1.29; the total cost would be found by multiplying the cost by the number of songs, or 1.29x.
This cannot be more than 20, so we set this less than or equal to 20:
1.29x ≤ 20.

<u>To solve this, we divide both sides by 1.29: </u>
</span>\frac{1.29x}{1.29}<span> ≤ </span>\frac{20}{1.29}<span>;
x ≤15.5.

We <u>cannot download half of a song</u>, so we round this down to 15 (although the number rounds up mathematically, he would not have enough money to download 16 songs). This means he can download at most 15 songs.</span>
8 0
3 years ago
Read 2 more answers
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