The question is about calculating a tip which is 25% of a meal cost of $12.00. The tip is calculated by multiplying the total cost of the meal by the tip percentage, converted into decimal form. The answer is $3.00.
Percentage is a mathematical concept used to express a portion of a whole as a fraction of 100. It is a versatile tool in various fields, including finance, statistics, and everyday calculations. To calculate a percentage, you divide a part by the whole and then multiply by 100. Percentages are commonly used to represent proportions, express changes, and compare values, making them vital for analyzing data, understanding discounts, and determining growth rates. In essence, percentages simplify the representation of relative quantities and are fundamental in both practical and academic mathematics.
The subject of the question is Mathematics, specifically Percentage. The student is being asked to calculate 25% of $12.00, which is the cost of Eliza's meal. To calculate the tip, multiply the total meal cost by the percentage of the tip. Here's how we can do it:
Convert the percentage into a decimal: 25% is equal to 0.25 in decimal form.Multiply the total cost of the meal by the decimal: $12.00 * 0.25 = $3.00So the tip Eliza left for the waiter was $3.00.
Learn more about Percentage here:
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At the beginning of a board game, players take turns
drawing 7 lettered tiles. Are drawing A's on the first two tiles dependent or
independent events? Explain.
The second pick is dependent on the first one.
Let [tex]a[/tex] be the number of tiles with the letter A, and [tex]n[/tex] be the total number of tiles.
With the first pick, you have probability [tex]\frac{a}{n}[/tex] to pick an A, because you have [tex]a[/tex] "good" cases out of [tex]n[/tex] possible cases.
The second pick depends on the first one:
If you pick an A tile on the first pick, the probability of picking another A is now [tex]\frac{a-1}{n-1}[/tex]If you didn't pick an A tile on the first pick, the probability of picking another A is now [tex]\frac{a}{n-1}[/tex]3y+6-y Please help! I'm awful at math
Step-by-step explanation:
So what are you looking for with that equation?
is this true or false
Answer:
true is the answer off this question
Answer:
True
Step-by-step explanation:
3n would mean 3 times n where 3 is the coefficient.
If a Subway train traveled 12 km in 8 minutes how many km/h was the train going?
Answer: 1.5 km/h
To find the speed use this:
distance/ time
12/8
Answer:
90km/h
Step-by-step explanation:
set up as this: 12km/8min = x/60min then cross multiply
12*60 = 720
8*x = 8x
solve for x
720 = 8x
90 = x
which of the following rectangles is similar to a rectangle that measures 12 units by 16 units? A) 18x24 B) 9x14 C) 6x10 D) 16x20
Answer:
A) 18x24
Step-by-step explanation:
The ratio of the dimensions will be the same for a similar rectangle.
12/16 = 3/4 . . . given rectangle
__
18/24 = 3/4 . . . choice A is similar
9/14 ≠ 3/4 . . . . choice B is not similar
6/10 = 3/5 . . . . choice C is not similar
16/20 = 4/5 . . . . choice D is not similar
Dean selects Teakwood stones
and Buckskin stones to pave a path in front
of his house. How many meters long will
each set of one Teakwood stone and one
Buckskin stone be?
Answer:
You didnt give us data to use
for example TEAKWOOD IS 3 METER LONG AND PATH 10 HOW LONG IS BUCKSKIN
Step-by-step explanation:
Solve the system of equations.
y=x+57
y=8x+15
Answer:
x=6, y= 63
Step-by-step explanation:
Please see attached picture for full solution.
If 5 bags weigh the same as 3 blocks, how many blocks will 9 bags weigh?
The weight of 9 bags is 5.4 blocks
Solution:
Given that,
5 bags weigh the same as 3 blocks
We have to find how many blocks will 9 bags weigh
Let "x" be the weight of 9 bags
Then,
5 bags weigh the same as 3 blocks
9 bags weight the same as "x" blocks
From proportion we can say,
5 : 3 : : 9 : x
Therefore,
[tex]\frac{5}{3} = \frac{9}{x}\\\\5x = 27\\\\x = 5.4[/tex]
Thus the weight of 9 bags is 5.4 blocks
9 bags will be equal to 5.4 blocks
Step-by-step explanation:
Step 1 :
Given,
Weight of 5 bags = weight of 3 blocks
We need to find the weight of 9 bags
Step 2 :
From step 1 , we get
Weight of 1 bag = weight of 3 blocks ÷ 5
The weight of bags is in direct proportion to the weight of the blocks.
Hence
Weight of 9 bags = 3 blocks × 9 ÷ 5
= [tex]\frac{27}{5}[/tex] blocks = 5.4 blocks
Step 3 :
Answer :
9 bags will be equal to 5.4 blocks
a 34 inch piece of wood is 20% of a longer piece of wood. How long is the longer piece of wood?
Answer:
170 inches
Step-by-step explanation:
34/x = 20/100
x = 170 inches
Answer: 170 inches
Step-by-step explanation: 20% multiply by 5(100%)
Substitute 20% with 34, and end with 170 inches
Evaluate the expression {10 x 7} + (10 – 6).
Answer:the answer is 74
Step-by-step explanation:
PLEASE HALPPP I NEED IT BRAINLIST IF CORRECT!!!!
The value of 23 + 33 = ___.
Answer:
56
Step-by-step explanation:
Step 1: Combine
23 + 33
(20 + 30) + (3 + 3)
50 + 6
56
Answer: 56
Answer:
56
Step-by-step explanation:
23+33=56
~♥~♥≧∇≦≧∇≦≧∇≦≧∇≦
A block of clay weighing 5 pounds is divided into 9 equal pieces.How muck does each piece way
Answer:
5/9 pounds or rounded 0.5555... pounds
Step-by-step explanation:
Step 1: Make an equation
5 / 9 = x
Step 2: Solve
5 / 9 = x
5/9 pounds or rounded 0.5555... pounds
Answer: 5/9 pounds or rounded 0.5555... pounds
Answer:
5/9 of a pound
Step-by-step explanation:
5 pounds of clay is divided into 9 equal pieces
5 ÷ 9
This can be written as a fraction
5/9
Each block weighs 5/9 of a pound
Hope this helps :)
Which equation is equivalent to the square root of x^2 + 81 = x + 10 (I put a picture up with the question and answers)
Answer:
See below
Step-by-step explanation:
sqrt(x^2+81)=x+10
x^2+81=x^2+20x+100 (which is one of the options)
81=20x+100
-19=20x
x=-19/20
So there's the work done.
what is the sum of angles in a triangle
Answer: 180 degrees
Step-by-step explanation:
A triangle has 3 sides which is always equal to 180 degrees.
I hope this helps.
Answer:
180 degrees
Step-by-step explanation:
All triangles have three sides and are suplementary (meaning they add up to 180 degrees) so the answer to your question is 180 degrees.
At a baseball game, a vendor sold a combined total of 232
sodas and hot dogs. The number of sodas sold was three times the number of hot dogs sold. Find the number of sodas and the number of hot dogs sold.
Answer:
Step-by-step explanation:
sodas ----x
hot dogs ---- y
x = 2y
x+y = 192
2y + y = 192
3y=192
y = 64
64 hotdogs and 128 sodas
Find the measure of < B
The measure of angle b is 25°.
Solution:
Given data:
The "L" shape angle is a right angle.
Right angle is splitted by another line and two angles are formed.
One angle is 65° and the other angle is b.
Let us find the other angle b.
65° + m∠b = 90°
Subtract 65° from both sides of the equation.
m∠b = 90° – 65°
m∠b = 25°
Hence the measure of angle b is 25°.
A factory that is working at 90% capacity is shipping 450 cars per week. If the factory works 100% capacity, how many cars can it ship per week
Answer:
500
Step-by-step explanation:
450/90 × x/100
how to solve x
100÷90=1.11111111111
1.11111111111×450
What is X+x+x+2 equivalent to?
Answer:
3X+2
Step-by-step explanation:
X+X+X+2=3X+2
Use a power of ten to estimate the product.
52.6 × 9
450
526
540
500
Answer:
A
Step-by-step explanation:
HELOOOOOOOOOOO ANYBODY THERE
Answer:
yes where is the question
find the mean:
23,91,83,31,49,11,60,92
Answer:
55
Step-by-step explanation:
For the mean you add together all of the values, and then divide the sum by the number of digits there are.
23+91+83+31+49+11+60+92 = 440
440/8 = 55
23 + 91 + 83 + 31 + 49 + 11 + 60 + 92 = 440/8 = 55
Mean: 55.
joyce has between 25 to 75 coloured beads. when she makes them into groups of 9, 8 beads are left out. when she groups into groups of 8, 6 beads are left out,how many beads are left
Answer:
Joyce has total 62 colored beads.
Step-by-step explanation:
For making groups of 9, let the number of beads be x.
total beads = 9x + 8
For making groups of 8, let the number of beads be y.
total beads = 8y + 6
As the total number of beads in both cases are same so,
9x + 8= 8y + 6
or, 9x-8y = -2
Now lets check the values through hit and trial;
First check; x=6, y=7
9*6 - 8*7 = -2
or, 54- 56 = -2
or, -2 =-2
This satisfies our equation.
Hence; Total beads = 9*6 + 8 = 62
The total number of beads joyce had is 62.
Number of beads she have is 62 .
Step-by-step explanation:
Here we have , joyce has between 25 to 75 colored beads. when she makes them into groups of 9, 8 beads are left out. when she groups into groups of 8, We need to find how many beads are left . Let's solve this:
when she makes them into groups of 9, 8 beads are left out equation is
[tex]9x+8[/tex]
when she groups into groups of 8 , 6 beads are left out, equation is
[tex]8y+6[/tex]
Equating both equation's we get:
⇒ [tex]9x+8 = 8y+6[/tex]
⇒ [tex]9x-8y = -2[/tex]
By hit & trial method , we put x = 6 & y=7:
⇒ [tex]9(6)-8(7) = -2[/tex]
⇒ [tex]54-56= -2[/tex]
⇒ [tex]-2= -2[/tex]
Since , LHS = RHS x = 6 & y=7 satisfies the equation [tex]9x+8 = 8y+6[/tex] . So putting value of x=6 in [tex]9x+8[/tex] we get:
⇒ [tex]9x+8[/tex]
⇒ [tex]54+8[/tex]
⇒ [tex]62[/tex]
Therefore, Number of beads she have is 62 .
Question 1
Graph the line that passes through the two points.
(−
3
2
,−
3
2
), (
3
2
,
3
2
)
Answer:
The equation of the line is y=1x and I will show you a picture of a graph with your points and a line of that equation.
Step-by-step explanation:
TWIJCICUL NUV.1.1)
George began making paper flowers for
the tables at the school awards banquet.
He can make 3 flowers per minute. Sue
joined him 5 minutes after he started. She
can make 4 flowers per minute. George
continued to make 3 flowers per minute.
Together, they made 190 flowers.
Which statements about the number of
flowers made are true?
A. George made 115 flowers.
B. George made 90 flowers.
C. George made 30 flowers.
D. Sue made 25 flowers.
E. Sue made 100 flowers.
F. Sue made 160 flowers.
Answer: B and E
Step-by-step explanation: B and E arecorrect because 4 x 25 is 100 and 3 x 30 equals 90 so there you have it
Answer:
B and E
Step-by-step explanation:
The measure (in inches) of the sides
=
Question 2 of 30
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If the measure of one exterior angle of a regular polygon is 40 degrees, how many sides does the polygon have?
Answer:
The polygon has 9 sides
Step-by-step explanation:
we know that
A regular polygon has equal length sides and equal interior angles
step 1
Find the measure of the interior angle
Remember that
The interior angle plus the exterior angle must be equal to 180 degrees (form a linear pair)
Let
x ----> the measure of each interior angle in the regular polygon
so
[tex]x+40^o=180^o[/tex]
solve for x
[tex]x=180^o-40^o=140^o[/tex]
step 2
Find the number of sides of the regular polygon
we know that
The measure of each interior angle in a regular polygon is given by the formula
[tex]x=\frac{(n-2)180^o}{n}[/tex]
where
n is the number of sides of the polygon
substitute the given values
[tex]140^o=\frac{(n-2)180^o}{n}[/tex]
solve for n
[tex]140n=180n-360\\180n-140n=360\\40n=360\\n=9\ sides[/tex]
therefore
The polygon has 9 sides
2x + 3y = 2
x + 6y = 4
Answer:
x=0 and y=2/3
Step-by-step explanation:
Multiply top equation by 2 -> 4x+6y=4
Cancel out the "6y"s by elimination -> 3x=0
Divide both sides by 3 -> x=0
Plug x=0 into x+6y=4 to get y -> 0+6y=4 -> 6y=4 -> y=4/6=2/3
So x=0 and y=2/3
)) Rachel is using ribbon to create girls' hair barrettes. For a craft fair in Springfield, she
made 12 small barrettes and 12 large barrettes, using a total of 156 yards of ribbon. Then,
for another craft fair in Norwood, she made 10 small barrettes and 11 large barrettes, which
used a total of 138 yards. How many yards of ribbon does Rachel use for each?
Answer:
small: 5 yardslarge: 8 yardsStep-by-step explanation:
Using s and L to represent the amount of ribbon used for small barrettes and large barrettes, respectively, we have ...
12s +12L = 156
10s +11L = 138
Dividing the first equation by 12 gives ...
s +L = 13
Substituting s = 13-L into the second equation gives ...
10(13 -L) +11L = 138
130 +L = 138 . . . . . . . simplify
L = 8 . . . . . . . . . . subtract 130
s = 13 -8 = 5 . . . . find s
Rachel uses 5 yards for a small barrette, and 8 yards for a large barrette.
6. On day 1 of a bake sale, the group sold 125 chocolate chip cookies and 75 oatmeal cookies. They also received donations that
totaled $46. They raised $196 on day 1. Both types of cookies were sold for the same price. Write and solve an equation to find
how much they charged for each cookie.
Answer:$1.33
Step-by-step explanation: What I did is I subtracted the 46 dollars in donations from the total they raised on day 1 to get the amount for just the cookies $150. Then I added the amount of the 2 total of cookies sold = 200. Then, I took the amount of cookies sold and divided it by the amount they made selling the cookies = 1.33. 200 ÷ 150 = 1.33
I hope this helps
which equation goes with the table?
Answer:
y=3x that is the answer