Which expression is equivalent to 30(1/2x-2)+40(3/4y-4)?

Answer:

8

Step-by-step explanation:

2 1/5 + 5 4/5 =

2 + 5 = 7

1/5 + 4/5 = 1

1 + 7 = 8

Answer:

17.2

Step-by-step explanation:

divide the numbers together and it will equal 17.2

Answer:

X = 15

Step-by-step explanation:

1.- Rewrite the equation, Put like terms on the same side

6x - 5x = 2 - 17

Instead of adding subtract

2.- Divide 1 on both sides

1x = 15

You should only have X on the left side

3.- You should have

X = 15

Answer:

Peter's number is 36.

Step-by-step explanation:

If you subtratct 13 from 36, you get 23.

If you multiply that times -3, you get -69.

(The way I got 23 was by dividing -69 and -3)

I hope this helped you even though it's late.

Answer:

D

Step-by-step explanation:

yo so basically started blasting

Answer:

The position of the equipment elevator is 180 feet deep

The position of the miner's elevator is 156 feet deep

The equipment elevator is deeper.

Step-by-step explanation:

From the question,

For the equipment elevator

Velocity (v) = 4 feet/second

and for the miner's elevator,

Velocity (v) = 13 feet/second

To determine the position of each elevator, the position can be related to the distance covered.

From

Velocity = Distance / Time

Distance = Velocity × Time

Now, from the question,

The equipment elevator first descends for 33 seconds, after which the miner's elevator then start to descend both elevators descend for another 12 seconds. That is, the equipment elevator descends for a total of (33+12) seconds while the miner's elevator descends for 12 seconds.

Now, for the equipment elevator

Velocity = 4 feet/second

Time = (33 + 12 seconds) = 45 seconds

From

Distance = Velocity × Time

Distance = 4 × 45

Distance = 180 feet

The position of the equipment elevator is 180 feet deep

For the miner's elevator,

Velocity = 13 feet/second

Time = 12 seconds

Also, from

Distance = Velocity × Time

Distance = 13 × 12

Distance = 156 feet

The position of the miner's elevator is 156 feet deep

Hence, the equipment elevator is deeper.

Answer:4/15

Step-by-step explanation:

Take 3/4 and flip it in half, making it 4/3, then multiply that by 1/5.

Answer:

4/15

Step-by-step explanation:

to divide fractions. flip the second fraction. then multiply

3           4

4           3

1   x    4    =   4

5  x    3        15

can't be simplified any further

Answer:

Aw, it doesn't let me see the picture... can you explain it and what we are supposed to find?

Step-by-step explanation:

Answer:

2.9

Step-by-step explanation:

If the order is P, Q, R on the number line, add both segments together.

Answer:

Y-int (0,3)

Slope 3/2

Step-by-step explanation:

I'm assuming this is for the second question on the bottom

Answer:

D) 1/2(2x-6)=-6 = x = -3

Step-by-step explanation:

A. x = 3

B. x = 7/3

C. x = 4

D. x = -3

Solve for x:

(2 x - 6)/2 = -6

Hint: | Multiply both sides by a constant to simplify the equation.

Multiply both sides of (2 x - 6)/2 = -6 by 2:

(2 (2 x - 6))/2 = -6×2

Hint: | Cancel common terms in the numerator and denominator of (2 (2 x - 6))/2.

(2 (2 x - 6))/2 = 2/2×(2 x - 6) = 2 x - 6:

2 x - 6 = -6×2

Hint: | Multiply 2 and -6 together.

2 (-6) = -12:

2 x - 6 = -12

Hint: | Isolate terms with x to the left hand side.

Add 6 to both sides:

2 x + (6 - 6) = 6 - 12

Hint: | Look for the difference of two identical terms.

6 - 6 = 0:

2 x = 6 - 12

Hint: | Evaluate 6 - 12.

6 - 12 = -6:

2 x = -6

Hint: | Divide both sides by a constant to simplify the equation.

Divide both sides of 2 x = -6 by 2:

(2 x)/2 = (-6)/2

Hint: | Any nonzero number divided by itself is one.

2/2 = 1:

x = (-6)/2

Hint: | Reduce (-6)/2 to lowest terms. Start by finding the GCD of -6 and 2.

The gcd of -6 and 2 is 2, so (-6)/2 = (2 (-3))/(2×1) = 2/2×-3 = -3:

Answer: x = -3

Answer:

79.875, or 79.88

Step-by-step explanation:

first ya do 75*0.065=4.875

then you add that to 75

Answer:

The equation: 2n - 3 ≤ -21

The answer to the equation: n ≤ 9

Step-by-step explanation:

How to get the equation:

The difference of symbolizes subtraction. Because we are subtracting twice a number and 3, the first part of the equation can be written as 2n - 3. The n symbolizes the number.

is at most symbolizes a less than or equal to sign. That sign is ≤. And what is it less than or equal to? -21.

Now are equation is 2n - 3 ≤ -21

How to solve it:

2n - 3 ≤ -21

Add 3 to both sides of the equation

2n ≤ 18

Divide both sides of the equation by 2

n ≤ 9

Answer:

-8.8x + 5

Step-by-step explanation:

Equation:

-0.8x + 40 - 8x - 35

-0.8x -8x + 5

-8.8x + 5

*This answer might be from a misunderstanding*

Answer:

-8.8x + 5

Step-by-step explanation:

See attached picture!!

Hope this helps!!

you didnt put a number line tho :/

Answer:

25

Step-by-step explanation:

that one spongebob meme

haha

:(

theres no number line

Answer:

x=10

Step-by-step explanation:

15+3x=45

-15        -15 *first subtract 15 from both sides

3x=30       * then divide by 3 on both sides to get x by itself

/3     /3

x=10

theres ur answer :D

Answer:

x≥-8

Step-by-step explanation:

Let's do this step by step:

Step 1-

Take x/2≥-4. Now multiply both sides by 2 to isolate the x variable. Multiplying x/2 by 2 removes the denominator.

Step 2-

Since we are multiplying both sides by 2, we also have to multiply -4 by 2. We get -8

Step 3-

Therefore, x≥-8

Hope that helps :)

Answer:

Alonzo was right about the equations being the same because they both end up equaling up to (4,-5)

Step-by-step explanation:

I attached the work below so you also know how to do it. I hope this helps you and I hope you have an amazing night and remember to drink water and eat and get a good nights rest. and remember that school does not define how smart you are!

2 over 45

Step-by-step explanation:

i divide 8over9 by 20

Answer:

The constant of variation is k=5

Step-by-step explanation:

Proportions

A direct proportion is a relation between variables where their ratio is a constant value. This means that if y and x are proportional, then:

[tex]y=k\cdot x[/tex]

Where k is the constant of proportionality.

We know R varies directly with S. Their relationship is:

[tex]R=k\cdot S[/tex]

We also have when S=16, R=80. Thus:

[tex]80=k\cdot 16[/tex]

Solving for k:

[tex]k=80/16=5[/tex]

The constant of variation is k=5

Answer:

hi b is the answer

Step-by-step explanation:

please mark me as the brainliest answer and please follow me for more answers to your questions

Answer:

Step-by-step explanation:

[tex]\sqrt{27} = \sqrt{9}[/tex] ×[tex]\sqrt{3}[/tex] = 3 × [tex]\sqrt{3}[/tex] = [tex]3\sqrt{3}[/tex]

So then

[tex]5\sqrt{27} = 5[/tex] ×[tex]3\sqrt{3}[/tex] = [tex]15\sqrt{3[/tex]

And then

[tex]15\sqrt{3} - 17\sqrt{3} = -2\sqrt{3}[/tex]

Answer:

c represent s a relation that is a function

Step-by-step explanation:

all other choices have a reputition of numbers in the y coordinate

Answer:

D

Step-by-step explanation:

A has (1, 2) and (1,0) and for functions for every input you need one output

B has (1,2) (1,3) (1,0) and same thing

C Has all of the inputs the same, so the input has multiple outputs which again is not a function

D has all inputs that have only one output

Answer:

two solutions

Step-by-step explanation:

x = 3 and -1

Answer:

GEF

Step-by-step explanation:

Answer:

16

Step-by-step explanation:

50 + (5×16) 8×16

50 + 80 128

130. 128.

if she goes to gitnasium 1 more time then it eould be more than Fit-Quest.

16 of the fitness classes do Fitnasium cost less than or the same as Fit-quest.

Arithmetic operations can also be specified by the addition, subtract, divide, and multiply built-in functions.

* Multiplication operation: Multiplies values on either side of the operator

For example 4*2 = 8

/ Division operation: Divides left-hand operand by right-hand operand

For example 4/2 = 2

We have been given that Fit-quest charges a one-time registration fee of $50 plus $5 per fitness class. Fitnasium charges no registration fee, but charges $8 per fitness class.

Let the number of classes would be x

⇒ 50 + (5x) = 8x

Rearrange the terms of x in the above equation,

⇒ 8x - 5x = 50

⇒ 3x = 50

⇒ x = 50/3

Apply the division operation,

⇒ x = 16

Therefore, 16 of the fitness classes do Fitnasium cost less than or the same as Fit-quest.

Learn more about Arithmetic operations here:

brainly.com/question/25834626

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