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3 years ago

The bill for lunch comes to 25.00. If Cory leave an 18%tip, what will the total cost of the meal be?

Mathematics

2 answers:

nataly862011 [7]3 years ago

5 0

Answer:

29.50

Step-by-step explanation:

18% = 0.18

if you do 25x0.18 then you get 4.50

then add 4.50 to 25 to get 29.50

marissa [1.9K]3 years ago

4 0

Answer:

$29.50

Step-by-step explanation:

multiply the cost by the percentage and add the original cost

(25×.18)+25 OR 25×1.18

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If sec a = 5/4 and a is an angle in quadrant iv find the value of cos a

wariber [46]

We know that
sec a = 5/4
sec(a)=1/cos(a)
then
cos (a)=1/sec(a)
cos (a)=1/(5/4)=4/5---> is positive because the function cos is positive in IV quadrant

the answer is cos(a)=4/5

8 0

3 years ago

The following problem describes procedures that are to be applied to numbers. Repeat the procedure for four numbers of your choi

mart [117]

Answer:

Conjecture: For every number x, the result of the is 2x

Step-by-step explanation:

First Number: 8

Multiply by 88: $88 * 8 = 704$

Add 88: $704 + 88 = 792$

Divide by 44: $792/44 = 18$

Subtract 2: $18 - 2 = 16$

Second: 10

Multiply by 88: $88 * 10 = 880$

Add 88: $880+88=968$

Divide by 44: $968/44=22$

Subtract 2: $22-2=20$

Third: 5

Multiply by 88: $88*5 = 440$

Add 88: $440+88=528$

Divide by 44: $528/44=12$

Subtract 2: $12-2=10$

Fourth: 2

Multiply by 88: $88*2=176$

Add 88: $176+88=264$

Divide by 44: $264/44=6$

Subtract 2: $6-2=4$

On a general terms:

Let the number be x.

Multiply by 88: $88x$

Add 88: $88x + 88$

Divide by 44: $\frac{88x + 88}{44} = \frac{88x}{44} + \frac{88}{44} = 2x+2$

Subtract 2: $2x + 2 - 2 = 2x$

Notice that for every input x, the result is 2x

8 0

3 years ago

A store mixes Kentucky bluegrass worth $12 per pound and chewing fescue worth $16 per pound. The mixture is to sell for $15 per

SashulF [63]

Let the amount of Kentucky Bluegrass be k.
Let the amount of Chewing Fescue be c.
$12k+16c=15\times372$
k+c=372
c=372 - k
12k + 16(372 - k) = 15 * 372 = 5580
12k + 5952 - 16k = 5580
-4k = -372
k = 93 pounds
c = 372 - 93 = 279 pounds

5 0

4 years ago

Joan descends down a

Kipish [7]

Answer:

Step-by-step explanation:

140 / 5 = 28

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3 years ago

Tangent segments from a common external point are

n200080 [17]

Answer:

Tangent segments from a common external point are congruent

Explanation:

A tangent line to a circle is a line that touches the circle in only one point of the cirfumference, and, hence, the tangent is perpendicular to (forms a right angle with) the radius of the circle.

There are many thorems relative fo the tangent lines of a cirle.

One of those theorems states that if two tangent lines to a circle are drawn from a same external point, the two segments formed from the coomon external point to the tangency points have the same length.

Also, you must know that, from the definition, two segments of the same length are known as congruent segments.

Therefore, calling P the common external point, A one point of tangency in the circle, and B the other point of tangency, then:

length segment PA = length segment PB.

So, the two tangent segments from an common enternal point are congruent.

7 0

3 years ago