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ser-zykov [4K]
2 years ago
6

OMG DUE IN 40 MINUTESSSS!!

Mathematics
1 answer:
ELEN [110]2 years ago
4 0

Answer:

17 1/3 52/3

Step-by-step explanation:

3x+y=38

3x+2y=52

-y=14

y=-14

3x+-14=38

3x-14=38

3x=38+14

3x=52

3x/3=52/3

x=171\3

17 is a whole number then 1 divided by 3 . thus is x

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C

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2 years ago
Four runners start at the same point: Lin, Elena, Diego, Andre. For each runner write a multiplication equation that describes t
Semenov [28]

Answer:

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Diego = -8.1 m/s x 32 s =<u> -259.2 meters</u>  (<em>Finish Point</em>)

Andre =  V = -285 m /35 s     V= -8.14ms  (<em>Velocity</em>)

Step-by-step explanation:

I hope this helps!

3 0
2 years ago
Read 2 more answers
Erin has 5 cookies, and Adlynn has 8. If Mallory has half the number of cookies as Adlynn, how many
Dimas [21]

Answer:

17

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4 0
2 years ago
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Cassie has test grades of 62, 85 and 89 on the first three tests in herpre-algebra class. What are the possible scores she can m
Vsevolod [243]

Explanation:

The test grade for 1st three tests = 62, 85, 89

Let the fourth test score = x

The result we hoping to get is grade B.

Let's find the average of the four test score

\text{Average = }\frac{Su\text{ m of all test score}}{nu\text{mber of test score}}\begin{gathered} s\text{ um of test scores = 62 + 85 + 89 + x} \\ nu\text{mber of test score = 4} \\ \frac{\text{62 + 85 + 89 + x}}{4}=\text{ Average} \end{gathered}\begin{gathered} A\text{ grade B represents atleast 80} \\ \text{Atleast represents }\ge \\ \frac{\text{62 + 85 + 89 + x}}{4}\text{ }\ge\text{ 80} \\ \frac{\text{236 + x}}{4}\text{ }\ge\text{  80} \end{gathered}\begin{gathered} \text{236 + x }\ge\text{ }80(4) \\ \text{236 + x }\ge\text{ }320 \\ \text{subtract }236\text{ from both sides:} \\ 236\text{ - 236 + x }\ge\text{ }320\text{ - 23}6 \\ x\text{ }\ge\text{  84} \end{gathered}

This means Cassie needs to score 84 or more to get a grade of B

In ineq

3 0
1 year ago
azul is planting a vegetable garden. he is using a bag of marbles to determine how many of each veggie to plant. his bag contain
kaheart [24]
1. Total number of marbles=10 red marbles+80 green marbles+110 orange marbles=200 marbles
2. Let's call "V" the event that consists that he selects a green marble from the bag. Then:
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 4. The expect value in a binomial function is written as below:

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 The answer is: He can expect 20 zucchini.
3 0
3 years ago
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