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3 years ago

HELP WILL GIVE BRAINLIEST

Mathematics

3 answers:

kifflom [539]3 years ago

7 0

It is the second one 2a +b over 4

PolarNik [594]3 years ago

5 0

Answer:

Considering the first description, we can see that all of the options are suitable.

When reading the second description, we can see that only the second and the third options fit the description because they both have the first term which is 2a

Looking at our final description, we can see that the second one suit it as well since the description said that the second term was the quotient of b and 4, or the result when we divide b by 4, and in this case we can write it as a fraction: b/4.

MrMuchimi3 years ago

4 0

Each one of them are the sum of two terms. If the first term is the product of 2 and a, it will be 2a so A and D are out. If the second term is the quotient of b and 4 it will be b/4 so the answer is 2a + b/4

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1 year ago

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An astronaut who weighs 85 kilograms on earth weighs 14.2 kilograms on the moon. How much would a person weigh on the moon if th

STatiana [176]

Answer:

Weight on the moon=x=15.87 kilograms

Step-by-step explanation:

This can be expressed as;

Weight on earth=Constant×Weight on moon

where;

Weight on moon=14.2 kilograms

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Replacing in the expression above;

85=14.2×k

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3 years ago

Jarred sells DVDs. His inventory shows that he has a total of 3,500 DVDs. He has 2,342 more contemporary titles than classic tit

Mamont248 [21]

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Substitute this value into first equation,
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Ludmilka [50]

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Step-by-step explanation:

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2 years ago

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Answer both please, the topic is linear inequalities, and please explain it to me.

Bogdan [553]

Question 1 solution:
You have two unknowns here:

Let the Water current speed = W

Let Rita's average speed = R

We are given two situations, where we can form two equations, and therefore solve for the two unknowns, W, R:

Part 1) W→ , R←(against current, upstream)
If Rita is paddling at 2mi/hr against the current, this means that the current is trying to slow her down. If you look at the direction of the water, it is "opposing" Rita, it is "opposite", therefore, our equation must have a negative sign for water:

R–W=2 - equation 1

Part 2) W→ , R→(with current)
Therefore, R+W=3 - equation 2

From equation 1, W=R-2,
Substitute into equation 2.
R+(R–2)=3
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So when W=0 (still), R=5/2mi/hr

Finding the water speed using the same rearranging and substituting process:

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3 years ago