there are 25 students in class 2-11 and 20% wear glasses. How many wear glasses?
Answer:
Five students wear glasses.
Step-by-step explanation:
20 percent of 25 is 5
We are given that 25 students in the class and 20% wear glasses.
Take 20% of 25 to calculate how many students wear glasses.
[tex]25 \times 20 \%=25 \times 0.20[/tex]
[tex]= 5[/tex]
5 students in class 2-11 wear glasses. Let me know if you have any questions, thanks!
Which organism has an exoskeleton
crab
tree
deer
elephant
PLS HURRY!!!!
a crab has a exoskeleton
What is 83,505 in expanded form
Answer:
83505
Step-by-step explanation:
It's already in the expanded form...
Pls help me with this question!!!!
Answer:
The answer is A
Step-by-step explanation:
What is the value of the 3 in this number?
is the value of this number.
Answer:
3?
Step-by-step explanation:
What is the image of (8,6)(8,6) after a dilation by a scale factor of \frac{1}{2}
2
1
centered at the origin?
The image of the point (8, 6) dilated by a scale factor 1/2 is (4, 3)
The given point is (8, 6)
The scale factor of dilation = 1/2
To dilate a given point (x, y) by a scale factor m, multiply each of the coordinates (x, y) by m
The image = (mx, my)
For the point (8, 6) dilated by 1/2, the image will be calculated as shown below:
[tex](\frac{1}{2}\times 8, \frac{1}{2} \times 6)\\= (4, 3)[/tex]
The image of the point (8, 6) dilated by a scale factor 1/2 is (4, 3)
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Which equations are true for x = –2 and x = 2? Select two options x2 – 4 = 0 x2 = –4 3x2 + 12 = 0 4x2 = 16 2(x – 2)2 = 0
The equation x² - 4 = 0 and 4x² = 16 have roots of x = -2 and 2 so option 1st and 4th are correct.
What are the roots of an equation?Roots of an equation are the solution of that equation, since an equation consists of hidden values of the variable so to determine them by different processes and then the resultant is called roots.
For example root of x -4 = 0 is x = 4 so 4 will be the only root of this linear equation.
The number of roots of an equation depends on the degree of the equation for example number of roots of quadratic equation are 2.
Given the roots
01)
x = -2
square both sides
x² = 4
x² - 4 = 0
02)
x = 2
Square both sides
x² = 4
Multiply by 4 on each side
4x² = 16
Hence "The equation x² - 4 = 0 and 4x² = 16 have roots of x = -2 and 2".
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Plz help look at the photo
Answer:
Its really blurry, what does it say?
Step-by-step explanation:
Find the difference between (4, -2) and (-2, 3) THE ANSWER IS 7.8 BUT PLEASE EXPLAIN HOW YOU GOT IT!
HELP ASAP (I'll mark brainliest if you answer within the next 5 mins!!)
Answer:
√61
Step-by-step explanation:
(4,-2) - (-2,3) = (6,-5)
6^2 + (-5)^2 = 61
square root both sides to get 7.8
The area of Ms. McCarthy’s garden measures 600 square feet. She plants vegetables in 75% of her garden and flowers in the remaining section. What is the area of the garden that Ms. McCarthy plants with flowers?
Answer
25
Step-by-step explanation:
100% - 75% = 25%
25/100 x 600 = 150 square feet
What is the solution to the inequality 1 2/3 > r - 7/12
Answer:
r ≤ 2 1/4
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Equality Properties
Rewriting Fractions
Step-by-step explanation:
Step 1: Define
1 2/3 ≥ r - 7/12
Step 2: Solve for r
Rewrite: 5/3 ≥ r - 7/12
Isolate r: 9/4 ≥ r
Rewrite: r ≤ 9/4
Reduce: r ≤ 2 1/4
Here we see that any number r less than or equal to 2 1/4 will work as a solution to the inequality.
How do you write f(x)=|x-7| as a piece wise function
Answer:
f(x) = { x+9 x ≥ − 9
-x -9 x < -9
In the given figure find out the value of x and y ?
Given info:
all sides are equal in the given triangle
It is an equilateral triangle all angles are equal and each angle is equal to 60°Given angles are 3y° and 2x°
→ 3y° = 2x° = 60°
→ 3y° = 60° and 2x° = 60°
→ y° = 60°/3 and x° = 60°/2
→ y° = 20° and x° = 30°
Therefore, x° = 30° and y° = 20°
Answer:-
The values of x = 30° and y = 20°
Key Knowledge:-
→ If all sides are equal in a triangle then it is an equilateral triangle
In an equilateral triangle,
→ all sides are equal.
→ all angles are equal.
→ all angles are equal to 60°
Hope this helps!!
Quadratic shifted left by
1 unit vertical stretch by a
factor of 1.
Answer:
1(x+1)^2
Step-by-step explanation:
what is 6-11a>-49 and 5a+10≥-35 will mark brainliest
Step-by-step explanation:
6-11a>-49
-11a>-49-6
-11a>-55
a<5.
Now, according to the question, if it is
W = {0,1,2,3,4}
N = {1,2,3,4}
Z = {...,-2,-1,0,1,2,3,4}
5a+10≥-35
5a≥-35-10
5a≥-45
a≥-9.
Now, according to the question, if it is
W = {-9,-8,-7,-6,-5,-4,-3,-2,-1,01,2,3...}
Z = {-9,-8,-7,-6,-5,-4,-3,-2,-1,01,2,3...}
Now, according to your domain you will do it .
hope this helps you.
Two fifth of pupils in a standard 7 class were girls.There were 27 boys in the class. ( a) how many girls were there. (b) how many peoples were there in the standard 7 class
Answer:
a. 18
b. 45
Step-by-step explanation:
The question states that 2/5 of the class are girls which means 3/5 are boys:
[tex]\frac{3}{5} = 27[/tex]
Divide this value by 3 to get the value of [tex]\frac{1}{5}[/tex]:
27 ÷ 3 = 9
Multiply this by 5 to find [tex]\frac{5}{5}[/tex], the total pupils in the class:
9 x 5 = 45
As the number of girls is [tex]\frac{2}{5}[/tex] of the total pupils:
9 x 2 = 18
So there are 18 girls in the class which has a total pupil size of 45.
Hope this helps!
Step-by-step explanation:
according to question of ⅖ are girls than ⅗ are boys
so let the number of girls be x
so,
→ ⅗ of x = 27
→ x = 27 × 5/3 = 9×5 = 45
→ x = 45
a ) 45 - 27 = 18
than no. of girls is 18.
b) thier are 45 students in total.
hope this answer helps you dear...take care and may u have a great day ahead!
drake is making capes he used 1/3 yard of fabric for each cape he makes what is the total amount of fabric drake needs to make 96 capes FOR 100
[tex]\sf 500+60+70[/tex]
............... that just 630
What is the value of x?
Answer:
x=50
Step-by-step explanation:
2x+20=3x-30
2x-3x=-x
20+30=50
-x+50=0
-x=-50
x=50
work out the value of 3^2 + 2^3
Answer:
17
Step-by-step explanation:
3² + 2³
= 9 + 8
= 17
Answer:
3/2 can be written as 3*1/2.
Now in 3*1/2 apply PEDMAS
3*0.5
Now multiply 3 with 0.5
The answer is 1.5…
3/2 means half of a three that is 1.5…it is fraction form of 1.5…
Step-by-step explanation:
A shape is shown on the graph: A coordinate grid is shown from positive 8 to negative 8 on the x-axis and from positive 8 to negative 8 on the y-axis. A triangle is shown on ordered pair 2, negative 2 and 4, negative 2 and 2, negative 6. Which of the following is a reflection of the shape? (5 points) Group of answer choices A coordinate grid is shown from positive 8 to negative 8 on the x-axis and from positive 8 to negative 8 on the y-axis. A triangle is shown on ordered pair negative 2, negative 2 and negative 4, negative 2 and negative 4, negative 6. A coordinate grid is shown from positive 8 to negative 8 on the x-axis and from positive 8 to negative 8 on the y-axis. A triangle is shown on ordered pair 2, 2 and 4, 2 and 2, 6. A coordinate grid is shown from positive 8 to negative 8 on the axis and from positive 8 to negative 8 on the y-axis. A triangle is shown on ordered pair negative 2, negative 4 and negative 6, negative 4 and negative 6, negative 2. A coordinate grid is shown from positive 8 to negative 8 on the axis and from positive 8 to negative 8 on the y-axis. A triangle is shown on ordered pair 2, 2 and 2, 4 and 6, 2.
Answer:
Step-by-step explanation:
the answers the second one.
Answer:
D
Step-by-step explanation:
the answer is d
What is 0.071 as a fraction in lowest terms?
71/10
71/1000
71/50
71/100
Answer:
71/1000
Step-by-step explanation:
cause ik math and I really not smart at the.same time
0.071 as a fraction in the lowest term is [tex]\frac{71}{1000}[/tex]
What is the lowest term?If the numerator and denominator of a fraction are relatively prime, that is, if they only share the number one, then the fraction is said to be stated in the lowest terms.0.071 in fraction is [tex]\frac{71}{1000}[/tex]
because 71 and 1000 don't have greatest common factor so the lowest term is also the same.
Therefore, 0.071 as a fraction in the lowest term is
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Please help!! I'm struggling so bad with this!!
Answer:
Step-by-step explanation:
25.
Statement / Reason
AB ≅ CD / given (side)
<ABD ≅ <CDB /given (angle)
BD ≅BD / reflexive property (side)
ΔABD ≅ Δ CDB / SAS theorem of triangles congruency
26.
Statement / Reason
< P ≅ < T / Given (angle)
PR ≅TR / Given (side)
< PRQ ≅< TRS / Vertical angles are congruent (angle)
ΔQPR ≅ΔSTR / ASA theorem of triangles congruency
28.
Statement / Reason
AB ≅ ED / Given (side)
< A ≅ < D / Given (angle)
<ASB ≅ <DCE / Vertical angles are congruent (angle)
ΔABC ≅ΔDEC / SAA theorem of congruency
30.
Statement / Reason
PS ≅ QR / Given (side)
PQ ≅ SR / Given (side)
PR ≅ PR / Reflexive propriety (the line segment is congruent with itself) (side)
ΔPSR ≅ ΔPQR / SSS theorem of congruency
31.
Statement / Reason
< M ≅ < L / Given (angle)
MK ≅ LK / JN bisects ML is given and by definition a line segment bisector forms two congruent parts. (side)
<MKJ ≅ <LKN / vertical angles are congruent (angle)
ΔMJK ≅ΔLNK / ASA theorem of triangles congruence
This is the Length of Arc....pls. try to answer.
Answer:
75 cmmmmmmmmmmmmmmmmmm
*25 points* an someone pls tell me how many solutions this equation have
Answer:
infinite number of solutions
Step-by-step explanation:
4(z - 5) + 2 = 4z - 18 ← distribute and simplify left side
4z - 20 + 2 = 4z - 18
4z - 18 = 4z - 18 , which reduces to
0 = 0 ← a true statement
This indicates the equation has an infinite number of solutions
How do i get 51 with the numbers 5, 6, 7, 8? Must use all of the numbers and only can use addition, subtraction, multiplication, or division.
Answer:
(8-5)*(6+7+(8-6)+(7-5))
Step-by-step explanation:
By using the digits in a way of (8-5)×(6+7+(8-6)+(7-5)) we get 51.
What is a numerical expression?A numerical expression is a mathematical statement written in the form of numbers and unknown variables. We can form numerical expressions from statements.
Given, we have to get a result of 51 using the digits 5, 6, 7, 8 and must use all of the numbers and only can use addition, subtraction, multiplication, or division this can be formed as,
51 = (8-5)×(6+7+(8-6)+(7-5))
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Has anyone done Exponential Growth and Decay (in mathematical models with application A) on sos or odysseware and gotten a prefect score?? Pls help!
I need help on the whole assignmnet but particularly this question..
Answer:
1) 62.5
2) 50
3) 75
4) 100
Step-by-step explanation:
1)
Because it has a half-life of 25 days, half of it will decay after 25 days.
After [tex]25*4=100[/tex] days, there will be [tex](1/2)^{4}=1/2^{4}=1/16[/tex] of it left.
So, [tex]1000/16=\boxed{62.5}[/tex].
2)
Because it has a half-life of 25 days, half of it will decay after 25 days.
After [tex]25*3=75[/tex] days, there will be [tex](1/2)^{3}=1/2^{3}=1/8[/tex] of it left.
So, [tex]400/8=\boxed{50}[/tex]
3)
Because it has a half-life of 25 days, half of it will decay after 25 days.
After [tex]25*2=50[/tex] days, there will be [tex](1/2)^2=1/2^{2}=1/4[/tex] of it left.
So, [tex]300/4=\boxed{75}[/tex].
4)
The only answer left is [tex]\boxed{100}[/tex] grams. You can solve it the same way you solved the previous steps.
What are the corresponding parts of the figures below? Select all that apply.CBAFGE76°44°60°76°44°60°45 km50 km35 km45 km50 km35 km
Answer:do your self it is easy
4(y-2)=-0.6(y+0.3 what is the answer and how to do it
Answer:Solution for 0.3(y-2)+0.4y=0.3y-0.6 equation:
0.3(y-2)+0.4y=0.3y-0.6
We move all terms to the left:
0.3(y-2)+0.4y-(0.3y-0.6)=0
We add all the numbers together, and all the variables
0.4y+0.3(y-2)-(0.3y-0.6)=0
We multiply parentheses
0.4y+0.3y-(0.3y-0.6)-0.6=0
We get rid of parentheses
0.4y+0.3y-0.3y+0.6-0.6=0
We add all the numbers together, and all the variables
0.4y=0
y=0/0.4
y=0
Suppose that a plumbing repair bill, not including tax,
was $130. This included $25 for parts and an amount
for 2 hours of labor. Find the hourly rate that was
charged for labor.
