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3 years ago

9

Why are equivalent equations important when solving a system using linear combination?

1 answer:

TiliK225 [7]3 years ago

7 0

Answer:

Linear equations are an important tool in science and many everyday applications. They allow scientist to describe relationships between two variables in the physical world, make predictions, calculate rates, and make conversions, among other things. Graphing linear equations helps make trends visible.

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-5.23-9.3= what idk what

kkurt [141]

Answer:

-14.53

Step-by-step explanation:

-5.23-9.3=-14.53 it's a negative plus a negative

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2 years ago

Two twin sisters are away at college. They both called home today. Tara calls home every 4 days. Sara calls home every 3 days. H

frozen [14]

Answer:

12

Step-by-step explanation:

4*3

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3 years ago

Solve for x round to the newest 10th i’d necessary

docker41 [41]

Answer:

x = 43.7°

Step-by-step explanation:

Reference angle (θ) = x°

Opposite side length = 43

Adjacent side length = 45

Apply the trigonometric function, TOA, which is:

Tan θ = Opp/Adj

Substitute

$Tan(x) = \frac{43}{45}$

$x = Tan^{-1}(\frac{43}{45})$

x = 43.7° (nearesth tenth)

5 0

3 years ago

Write the exact value of 0.428x2.75

bonufazy [111]

the exact value of 0.428x2.75 is 1.177, in order to get this you multiply both number with each other.

6 0

3 years ago

When Gail goes on a hike, she always packs a ratio of 20 protein bars to 15 water bottles in her backpack. Complete the statemen

Oduvanchick [21]

Answer: The ratio of protein bars to water bottles will be 4:3.

Explanation:

Since we have given that

Number of protein bars = 20

Number of water bottles = 15

We need to calculate the ratio of protein bars to water bottles which is given by

$\text{ Number of protein bars}:\text{ Number of water bottles }\\\\=20:15\\\\=4:3$

So, the ratio of protein bars to water bottles will be 4:3.

6 0

3 years ago

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