(-3x+4)+(x-9) help please.

Mathematics

2 answers:

Vera_Pavlovna [14]2 years ago

7 0

Answer:

−2−5

Step-by-step explanation:

(-3x+4)+(x-9)

−3x+4+x−9

Subtract

−3x+4+x−9

-3−5+

Combine terms

−3x−5+x

−2−5

Mumz [18]2 years ago

3 0

Answer:

- 1 · (2×±5)

Step-by-step explanation:

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Sarah and Eva are swimming use the ratio table to determine who is the faster swimmer

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Sarahtime (min)    {3 } 5 12 17
distance (meters) {75} 125   300 425

Eva time (min)     {2}    7 10    20
distance (meters)    {52} 182   260 520

Sarah:meters over min =75 over 3 = 25 over 1
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Eva :meters over min= 52 over 2 =26 over 1
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eva is the faster swimming because 26 meters per min is faster then 25 meters per min .

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3 years ago

At a particular restaurant, each pizza roll has 60 calories and each mini hotdog has 70 calories. A combination meal with pizza

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Answer:

There are 9 pizza rolls and 12 mini hotdogs in the meal.

Step-by-step explanation:

We are given the following in the question.

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Thus, we can write the equation:

$x + y = 21$