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zzz [600]
3 years ago
14

Evaluate the expression: 2/3-1/4+(-5/6)

Mathematics
1 answer:
Aliun [14]3 years ago
3 0

Answer:

\\  \frac{2}{3}  -  \frac{1}{4}  +  \frac{( - 5)}{6}

\\  =  \frac{2}{3}  -  \frac{1}{4}  -  \frac{5}{6}

\\  =  \frac{8 - 3 - 10}{12}

\\  =  \frac{8 - 13}{12}

\\  =  \frac{ - 5}{12}

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at a clothing store, levi's jeans are on sale for 40% off. sales tax is 7%. which expression will calculate the total cost of le
aleksandrvk [35]

Given:

Discount = 40%

Sales tax = 7%

To find:

The total cost of levi jeans with an original price of x.

Solution:

Let x be the original price of the jeans. Then the price after 40% discount is

Price=x-40\%\text{ of }x

Price=x-\dfrac{40}{100}x

Price=x-0.4x

Price=0.6x

The price after 7% of sales tax.

Price=0.6x+7\%\text{ of }0.6x

Price=0.6x+\dfrac{7}{100}\times 0.6x

Price=0.6x+0.042x

Price=0.642x

Therefore, the total cost  of the levi jeans with an original price of x is represented by the expression 0.642x.

4 0
3 years ago
I need to get both into y=mx+b
quester [9]

Isolate the y for both questions. Note that what you do to one side, you do to the other. Do the opposite of PEMDAS.

First question: x - 5y ≥ 3

First, subtract x from both sides

x (-x) - 5y ≥ 3 (-x)

-5y ≥ -x + 3

Divide -5 from both sides. Note that when you divide by a negative number, you flip the equation.

(-5y)/-5 ≥ (-x + 3)/-5

y ≤ (-x + 3)/-5

y ≤ x/5 - 0.6

------------------------------------------------------------------------------------------------

Do the same for the second one. Subtract x from both sides

x + y < 0

x (-x) + y < 0 (-x)

y < - x

~

5 0
3 years ago
Read 2 more answers
In ΔKLM, l = 300 inches, ∠L=161° and ∠M=18°. Find the length of k, to the nearest 10th of an inch.
olchik [2.2K]

Answer:

16.1 Inches

Step-by-step explanation:

In ΔKLM,

∠K+∠L+∠M=180°

∠K+161°+18°=180°

∠K+179°=180°

∠K=180°-179°=1°

To determine k in the diagram, we use the Law of Sines.

\frac{k}{Sin K}=\frac{l}{Sin L}

\frac{k}{Sin 1}=\frac{300}{Sin 161}

k X Sin 161°=300 X sin 1°

k=(300 X sin 1°)÷sin 161°

k=16.1 inches (correct to the nearest tenth of an inch)

4 0
3 years ago
Help!!! The measure of the central angle is ____________ the measure of the circumference angle.
nataly862011 [7]

Answer:

Twice.

Step-by-step explanation:

It is 2 times the measure of the angle at the circumference.

4 0
3 years ago
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What is the definition for congruent line segments for geometry?
Y_Kistochka [10]
Two segments are congruent when they have the same measure
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3 years ago
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