1\2 ÷ 1\2 i dont know the please help
Answer:
I think 1/2 divided 1/2 is equal to 1
Step-by-step explanation:
I put in into the calculator and it said 1
CHALLENGE Sara had some marbles. She got 20 more marbles for her
birthday, and she got 30 marbles at the store. Now Sara has 100 martha
marbles did she have to start?
Answer:
50
Step-by-step explanation:
a + 30 + 20=100
100-30=70
70-20=50
Answer: 50 marbles
Step-by-step explanation: 100-(30+20)=50
The area of a rectangular community the garden is 300 square feet. The length of a rectang!
three times its width. Find the length and width of the garden.
Answer:
30, 10
Step-by-step explanation:
length=x
wdith=y
xy=300, x=3y
replace x with 3y in the first equation to get
3y^2=300
y^2=100
since you cant have a negative side of a garden, y=10. x=30.
which is the graph of f(x)= 3 sq root -x?
Answer:
3rd option. The way you do it is just plug in negative x value let's say -8, plug it in then y would be a positive value. So that rules out first two options. Then plug in positive x value, y would be negative.
a carnival game has 18 balloons. Amy popped 2/3 the first game and 5/6 the second game. How many more balloons did she pop the second game?
Answer:
3 more balloons she has popped in the second game.
Step-by-step explanation:
Given that,
Total no. of balloons = 18
Amy popped 2/3 the first game and 5/6 the second game.
Balloons popped in first game = [tex]\dfrac{2}{3}\times 18=12\ \text{balloons}[/tex]
Balloons popped in second game = [tex]\dfrac{5}{6}\times 18=15\ \text{balloons}[/tex]
Difference of balloons popped in first and second game,
= 15-12
= 3 balloons
Hence, 3 more balloons she has popped in the second game.
Given: ∠ABC is a right angle and ∠DEF is a right angle.
Prove: All right angles are congruent by showing that ∠ABC ≅∠DEF.
What are the missing reasons in the steps of the proof?
A flow chart with 4 boxes that are labeled Given, A, B, C from left to right. Box Given contains angle A B C, angle D E F are right angles. Box A contains m angle A B C = 90 degrees and m angle D E F = 90 degrees. Box B contains m angle A B C = m angle D E F. Box C contains angle A B C is-congruent-to angle D E F.
A:
B:
C:
Answer:
Step-by-step explanation:
A right angle is an angle whose measure is equal to [tex]90^{o}[/tex]. As the measure of two right angles equals angle on a straight line, while four right angles equal the sum of angles at a point.
Given: <ABC, <DEF are right angles.
The missing reasons in the steps of the proof are:
A: m<ABC = [tex]90^{o}[/tex] and m<DEF = [tex]90^{o}[/tex] (Meaning of a right angle)
B: m<ABC = m<DEF (By right angle property)
C: <ABC ≅ <DEF (Congruence property of angles)
Answer:
A: definition of right angle
B: substitution property
C: definition of congruent angles
Step-by-step explanation:
Sophie buys eggs and apples at the store.
She pays a total of $22.11.
She pays a total of $4.29 for the eggs.
She buys 3 bags of apples that each cost the same amount.
Write and solve an equation which can be used to determine x, how much each bag of apples costs.
(22.11 - 4.29) /3 = X
22.11- 4.29 = 17.82
17.28/3 = 5.94
One bag of apples cost $5.94
Answer:
(22.11-4.29)÷3=x
(17.82)÷3=5.94
x=$5.94
Find the value of x.
Round to the nearest tenth.
100°
25
30
х
x = [?]
Law of Cosines : c2 = a + b2 - 2ab cos C
Answer:
x ≈ 42.3
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra I
Equality PropertiesPre-Calculus
Law of Cosines: c² = a² + b² - 2(a)(b)cosC°Step-by-step explanation:
Step 1: Identify
Leg a = 25
Leg b = 30
C = 100°
Leg c = x
Step 2: Solve for x
Substitute [LOC]: x² = 25² + 30² - 2(25)(30)cos100°Exponents: x² = 625 + 900 - 2(25)(30)cos100°Multiply: x² = 625 + 900 - 1500cos100°Evaluate: x² = 625 + 900 - 1500(-0.173648)Multiply: x² = 625 + 900 + 260.472Add: x² = 1525 + 260.472Add: x² = 1785.47Isolate x: x = 42.2548Round: x ≈ 42.3What is the value of the expression ix0i1xi2xi3xi4?
Answer:The answer is - 1.
Step-by-step explanation:
which expression is not equivalent to the other three
2x+2+ + 3× -8
4 + 7× - 2
-2 + 5× + 2× - 4
8× - × - 6
Answer:
-2+5x+2x-4
Step-by-step explanation:
i need the answer shown on a graph
Answer:
i have no idea try to use m a t h w a y
Step-by-step explanation:
How many times as many circles will there be at stage 21 compared to stage 20
Answer:[tex]2^{10}\ circles[/tex]
Step-by-step explanation:
Given
Stage 20 has [tex]2^9[/tex] circles
Considering at each consecutive stage circle doubles itself
So at stage 21, there will be [tex]2\times 2^9=2^{10}[/tex] circles
There are 7 boxes stacked on the floor in the math department supply closet. Each box has a height of 10 inches or 8 inches. The height of the stack of 7 boxes is 5 feet. How many boxes in the stack are 8 inches in height?
Answer:
5 of the 7 boxes are 8 inches in height
Step-by-step explanation:
Mathematically;
1 ft = 12 inches
So, 5 ft will measure 5 * 12 = 60 inches
So from what we have ,
We want to combine 8 and 10 inches to give 60 inches total
Let the number of 10 inches be x and the number of 8 inches be y
Mathematically;
x + y = 7 •••••(i)
10x + 8y = 60 ••••(ii)
From equation i, x = 7-y
Put this in equation ii
10(7-y) + 8y = 60
70-10y + 8y = 60
70-60 = 10y-8y
2y = 10
y = 10/2
y = 5
What is 1/2x+1.5-2-7 simplified
Help easy math problems!!!!
Answer:49.45
Step-by-step explanation:
Which of the following expression is a perfect square?
A. 4x
B. 4x2
C. 6x4
D. 8x
WILL GIVE BRAINLIEST IF YOU GIVE AN ACCURATE DESCRIPTION!! ( look at photo)
Answer:
∠1 and ∠5 are pair of corresponding angles
∠1 and ∠8 are pair of alternate exterior angles
∠3 and ∠6 are pair of alternate interior angles.
Step-by-step explanation:
we need to identify the pair of corresponding angles, a pair of alternate exterior angles and a pair of alternate interior angles.
1) Pair of corresponding angles
Angles that are at the same corner at each intersection.
So, ∠1 and ∠5 are pair of corresponding angles
2) Pair of alternate exterior angles
A pair of angles that are on outer side of the two lines but on opposite sides of the transversal.
So, ∠1 and ∠8 are pair of alternate exterior angles
3) Pair of alternate interior angles
A pair of angles that are on inner side of the two lines but on opposite sides of the transversal.
So, ∠3 and ∠6 are pair of alternate interior angles.
(05.01)A picture is 5 inches wide and 8 inches tall: A rectangle is shown. The length of the rectangle is labeled 5 inches. The width of the rectangle is labeled 8 inches. A photographer wants to use a scale factor of 2.5 to enlarge a picture. What will the area of the picture be after it is enlarged? 40 in2 250 in2 100 in2 81.9 in2
Answer:
B. 250 in²Step-by-step explanation:
Dimensions of the picture:
5 in and 8 inArea of the picture:
5*8 = 40 in²Scale factor = 2.5
Enlarged picture's area:
40*2.5*2.5 = 250 in² (scale factor affects both dimensions)Option B is correct
The area of the picture after it is enlarged is 250 inches².
Given that,
The length of the rectangle is labeled 5 inches. The width of the rectangle is labeled 8 inches.
A photographer wants to use a scale factor of 2.5 to enlarge a picture.
Based on the above information, the calculation is as follows:
Here, the dimensions of the picture are 5 in and 8 in
Hence, the area of the picture is,
5 × 8 = 40 in²
Since, Scale factor = 2.5
So, the enlarged picture's area would be,
40 × 2.5 ×2.5
= 250 in²
To learn more about the rectangle visit:
https://brainly.com/question/2607596
#SPJ6
Can any one help me if x={a,b,c,d},A={b,c,d}andB={b,d,a,c}which one is the proper subject of X?
Answer:
Set A is the proper subsets of X and not Set B since set B has all the elements of set X
help !!! please show work so i know how to do it :)))
Answer:
70
Step-by-step explanation:
the red lines mean the two sides are equal
so its an isosceles triangle meaning the two angles other than the 40° one are equal
the inner angles of a triangle must add up to 180
so 180-40 = 2x
140 = 2x
x = 140/2 = 70
Answer:
x=70
Step-by-step explanation:
let unknown angle be a
then,a=x(base angle of an isosceles triangle)
a+x+40=180
x+x=180-40(a=x)
2x=140
x=70
There are 5 ten-pound bags and 8 twenty-pound bags of rice on a shelf. How many pounds of rice are on the shelf?
Group of answer choices
Answer:
(8×20)+(5×10)=210
8×20=160
5×10=50
Step-by-step explanation:
What is the probability of rolling at least one six in three rolls of die
Answer:
91/216
Step-by-step explanation:
Answer:
.5% Chance
Step-by-step explanation:
Jason and Mary will usually both run 4 miles each time they go running. This month, Jason ran an additional 15 miles. Which answer choice shows an expression that represents the total distance Jason and Mary ran this month if J = the number of times that Jason ran and m = the number of times that Mary ran? Answer Choices: 4j+4m+15, 8j + 8m + 15, 19j + 19m, 4j +19. Please answer if you know
Answer:
4j+4m+15
Step-by-step explanation:
jason+mary= 4 miles which= 4j+4m
jason ran additional 15 miles= +15
Calculate the value of the expression.
60 - (-80)
Answer:
140
Step-by-step explanation:
60 - (-80) = 60 + 80
Luke ate a snack with 91 total calories. If the chips he ate were 41.2 calories, how many calories were in the rest of his snack?
Answer:
49.8
Step-by-step explanation:
91-41.2
(04.01)Which unit rate is equivalent to 15 miles per gallon?
thirty miles over three gallons
three gallons over thirty miles
four gallons over sixty miles
sixty miles over four gallons
Answer:
Basically, it is asking what fraction equals 15 / 1 ?
And the answer is 60 miles / 4 gallons
Step-by-step explanation:
Solve and describe the graph of the inequality: 5x < 45
Answer:
5x<45 Divide both by five which results in the equation looking like this:x<9. On a number line, there would be an open circle on the nine and the arrow would go to the left.
Step-by-step explanation:
The solution set is x<9 of inequality 5x<45.
What is an inequality?A relationship between two expressions or values that is not equal to one another is referred to as "inequality" in mathematics.
To solve the inequality, you may multiply or divide each side by the same positive number, add the same amount to each side, take the same amount away from each side, and more. You must flip the inequality sign if you multiply or divide either side by a negative number.
5x<45
divide by 5
x<9
The graph is the shaded region below x =9.
Therefore, the solution set is x<9. And the graph is given.
To learn more about the inequality in mathematics;
brainly.com/question/28823603
#SPJ2
х
—3
—1
1
4
8
10
у
14
10
6
0
?
—12
Answer:
I believe it would be the last table.
Step-by-step explanation:
It costs Linus a processing fee of $45 to set up a new cell phone account with AT&T plus $65 per month for the cell phone plan. His sister, Lucy, also wants to use the cell phone to call her friends each month. Lucy agrees to pay Linus $15 towards the processing fee and tells him she will pay $20 per month.
Define a variable.
Write an expression that represents how much Linus will have to pay for the cell phone if Lucy contributes.
Determine how much Linus will pay if he has the cell phone for 6 months.
Answer: 110-35=x
answer: 7 minutes
I came here to find the answer to this proble but since no one answered I’ll just put the answer that I got.
Step-by-step explanation:
what is 3 / 1 - 1/2
[tex] \frac{3}{1 - \frac{1}{2} } [/tex]
I need help i have an exam on the 8th of Januaryary 2021 i need this because i will get me into highschool..
Answer:
6
Step-by-step explanation:
3 / 1 - 1/2 = 3 / 1/2
when dividing by singular fractions (1/3 1/6 1/29 whatever) just multiply by the denominator so 3 ÷ 1/2 = 6