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2 years ago

Which expression represents 8 less than two times X?

Mathematics

1 answer:

JulsSmile [24]2 years ago

6 0

Answer:

Therefore the expression is option A)

$2x-8$

Step-by-step explanation:

Given:

Statement as ' 8 less than two times X'

To Find :

Expression for the statement

'8 less than two times X'

Solution:

$Two\ times\ 'x'\ means=2\times x$

Now 8 less than two times X means Subtract 8 from '2x'

$2x-8$

Therefore the expression is option A)

$2x-8$

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how do i slove 5/9v+w=z, for v

nekit [7.7K]

Okay, let's do this~

we want v isolated on one side so let's bring w over through subtraction

now we have 5/9v=z-w

now, to get rid of that fraction attached to v, we will multiply it's reciprocal on both sides.

*the reciprocal of 5/9 is 9/5

(5/9) x (9/5) cancel each other leaving v isolated to the left

the other side should look like this 9/5(z-w)

now we put both parts together to end up with:

v= 9/5(z-w)

there you go! :D

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2 years ago

The Wright Flyer was the first successful powered aircraft. A model was made to display in a museum with the length of 35 cm and

astra-53 [7]

To link the displayed Wright flyer in the museum with the actual plane, we have to calculate for the relation of the corresponding parameter. In this problem, for both the display and the actual plane, we are given with the length. Computing for the ratio gives us,

ratio = length of the model / length of the actual plane

Length of the model = 35 cm

We need to calculate for the length of the model in ft.

length of the model = (35 cm)(1 in/2.54 cm)(1 ft/12 in)
length of the model = 1.148 ft

Going back to the calculation for the ratio,
ratio = (1.148 ft)/21 ft
ratio = 0.055

Therefore, the measurements used in the model is equal to 0.055 times the actual dimensions.

Error may occur because of the number of significant figures measured for rounding up or down of the answers after each calculation.

8 0

2 years ago

A CD usually sells for $17.00. If the CD is 30% off, and sales tax is 6%, what is the total price of the CD, including tax?

Ivan

If it is 30% off, then u r paying 70%

70% of 17 = 0.7(17) = 11.90 ...this is without tax

u have a tax rate of 6%.....

11.90 * 1.06 = 12.614 rounds to 12.61 <== total cost including tax

8 0

2 years ago

Read 2 more answers

Tim answered all the questions on his math test but got 101010 answers wrong. He received 444 points for every correct answer, a

lisov135 [29]

A)
4(q -10) = 76 . . . . . Tim got 4 points for every right answer, for a score of 76. He answered correctly 10 fewer questions than were on the test.

b)
q = 10 +76/4
q = 29

The total number of questions on Tim's math test was 29.

4 0

2 years ago

Read 2 more answers

Here are the ingredients to make 12 cupcakes.

scoundrel [369]

Answer:

Mark needs 2 kg butter, 2 kg caster sugar, 14 eggs, and 1.5 kg flour.

Step-by-step explanation:

Alright, first you double the number of kids, as Mark wants each kid to have two cupcakes, not one. (Then add 80+80 to get 160)

Now add the adults to children: 160+152=312

now divide by 12 to see how many batches of cupcakes he needs to make.

312÷12=26 So he needs to make 26 batches

Now here are the ingredients needed to make 12 batches of cupcakes (I multiplied the amount of each ingredient by 26)

5200 g (5.2 kg) butter, 5200 g (5.2 kg) caster sugar, 104 eggs, and 6500 g (6.5 kg) flour.

now make the measurements the same as Mark's ingredients (or the other way around)

(to save time I am not showing each one, just the normal ingredients turned into kg and compared)

5 kg butter < 5.2 kg butter

5 kg caster sugar < 5.2 kg butter

90 eggs < 104 eggs

5 kg flour < 6.5 kg flour

Now do a little subtraction.....

5.2 kg-5 kg = 2 kg butter is needed....

5.2 kg - 5 kg = 2 kg caster sugar is needed....

104 - 90 = 14 eggs needed....

6.5 kg - 5 kg = 1.5 kg flour needed....

And there you go!!! Hope this helped!!! :D

4 0

2 years ago