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3 years ago

Can some one plz help me with these 2 problems

Mathematics

1 answer:

natulia [17]3 years ago

7 0

The right answer of 1st question is (4*30)+(4*8).[Option C]

The right answer of 2nd question is 35.

Look at the attached picture

Hope it will help you...

Good luck on your assignment...

~pragya

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What is a coefficient

7nadin3 [17]

Answer:

A coefficient is a numerical or constant quantity placed before and multiplying the variable in an algebraic expression. (It's the number that's with the variable)

Step-by-step explanation:

4x-7=5

Coefficient: 4

3 0

3 years ago

A team of astronauts is preparing a mission to the moon. The pull of gravity on the moon is different than on Earth. On the moon

erik [133]

Answer:

$(C)$ $xa+ya>\frac{1}{6}xa+\frac{1}{6}ya$

Step-by-step explanation:

For this mission, each astronaut will bring

x pounds of food; and
y pounds of gear.

Weight of Supplies of One Astronaut on the earth = (x+y) pounds

If the total number of astronauts going on the mission= a

Total Weight on the earth of the supplies of all the Astronaut $=a (x+y) pounds$

On the moon, things weigh $\frac{1}{6}$ of what they weigh on Earth.

Total Weight of the supplies of all the Astronaut on the moon $=\frac{1}{6}a (x+y) pounds$

Therefore,the inequality which correctly compares the weight of the supplies on the moon to the weight of the supplies on Earth is:

$a (x+y) pounds >\frac{1}{6}a (x+y) pounds\\xa+ya>\frac{1}{6}xa+\frac{1}{6}ya$

8 0

3 years ago

Repeating decimals are ______ rational numbers. A. Always B. Never C. Sometimes

valina [46]

<h2>I believe it is A. Always.</h2><h2></h2><h2>Hope this helps and have a nice day! o/</h2>

6 0

3 years ago

Read 2 more answers

Oh my goodness please help its confusing.

Irina18 [472]

Probably the easiest way to do these is to convert them to slope intercept form by solving for y. When we have y=mx+b, we read off the slope m.

-5x + 2y = 10

Add 5x to both sides,

2y = 5x + 10

Divide both sides by 2,

y = (5/2) x + (10/2)

Obviously 10/2=5 but we don't care about that for this problem. We read off the slope as

Answer: 5/2, last choice

12 = 4x - 6y

Adding 6y and subtracting 12,

6y = 4x - 12

Dividing by 6,

y = (4/6) x - (12/6)

y = (2/3) x - 2

Answer: 2/3

3 0

3 years ago

What is the solution to the system of equations below?

Agata [3.3K]

Answer:

The answer is C

Step-by-step explanation:

Use the method of elimination

First rearrange the first equation to look like the second

$2x + 3y = 17 \\ 4x + 6y = 34 \\ - 4x - 6y = - 34$

Next add the two equations together eliminating the y term.

$- 4x - 6y = - 34 \\ 3x + 6y = 30 \\ \\ - x = - 4 \\ x = 4$

There's only one answer with x = 4 so you're done. To go further, substitute x = 4 into the second equation and solve for y

$3x + 6y = 30 \\ 3 \times 4 + 6y = 30 \\ 12 + 6y = 30 \\ 6y = 18 \\ y = 3$

4 0

3 years ago

Read 2 more answers