Answer:
14 y/o
Step-by-step explanation:
assuming that Reem's age is X y/o,
Kelly's age= 5x - 7
according to the question,
(x)+(5x - 7) = 77
or, 6x= 77+7
or, x= 84/6
therefore, x= 14
consider the expression
[tex] \sqrt{a^{2} + 12 } + |b| [/tex]
when a = -2 and b= 14. what is the value of the expression?
show work
Answer:
18
Step-by-step explanation:
[tex]\sqrt{((-2)^2 + 12)} + 14[/tex]
= [tex]\sqrt{(4 + 12)} + 14[/tex]
= [tex]\sqrt{16}+14[/tex]
= 4 + 14
= 18
Hope this helps!
Answer:
[tex] \sf 18[/tex]
Step-by-step explanation:
[tex] \sf = \sqrt{ { - 2}^{2} + 12} + |14| [/tex]
[tex] \sf = \sqrt{(( - 2) \times ( - 2)) + 12} + 14[/tex]
[tex] \sf = \sqrt{4 + 12} + 14[/tex]
[tex] \sf = \sqrt{16} + 14[/tex]
[tex] \sf = \sqrt{ {4}^{2} } + 14[/tex]
[tex] \sf = 4 + 14[/tex]
[tex] \sf = 18[/tex]
It took Jason 20 days to write his college essay. He wrote half a page (0.5) every day. How long was the report?I need an explanation to so I can understand, thank you!
Help. Please
And
Thank u
<3
Step-by-step explanation:
α = α
x = 96°
Answer → x = 96° (degree)
Answer:
96 Degrees
Step-by-step explanation:
If we look at the problem, we know that due to the fact that they are adjacent that they MUST be equal.
Here is the proof:
We'll assign each angle a letter as following
A B C D with A being the top left and D being the bottom right!
Now that we know that, first off, A has to be equal to 180-96 due to them being Supplementary Angles.
Therefore, A is 84 degrees.
Now to find x, we can use Supplementary Angles again.
x has to be 180-84 which is 96 degrees proving the theorum.
Have a nice day!
I don't understand this question can someone help me with this please, please explain!! and thank you for the help!! If u dont know try your best. Please do it quick, please do all :D
Answer:
1: 0.625, 2: 1.05, 3: 2 13/20
Step-by-step explanation:
Use a calculator to determine the exact value of the fractions, or do it by hand.
Answer:
0.625 , 1.05, 2 13/20
Step-by-step explanation:
Well, this isn't that hard if you really think about it.
For Number 1: 5/8 as a decimal, first you want to divide
100 by 8, which equals to 12.5. Then multiply 12.5 by 5 which gets you 62.5
Move the decimal place 2 to the left, and you get 0.0625.
For Number 2: 1 and 1/20
100/20=5
So you have 1 and 5/100, convert 5 to percent so 5%
5%+100%=105%
105= 1.05
Number 3: 2.65
100/20=5
13x5=65
0.65+2= 2.65, 2 13/20.
Twenty percent of a class is made up of girls. If there are 40 students in the class, how many are girls ?
Answer:
8
Step-by-step explanation:
20 percent of 40 is 8
I hope this is 5he answer you were looking for
The radius of the circle shown to the right is 3 inches. What is the area of this circle, in square inches?
(A) 3π (B)9π (C) 12π (D) 36π
Help!!! evaluate peicewise functions
Answer:
9
Step-by-step explanation:
You choose the middle one because 3<(4)<10 makes sense where as the other ones don't when you plug in 4. Then you solve the equation which is x^2-7 and then you get 16-7 which is 9.
Question 6 of 17 Which expression uses the associative property to make it easier to evaluate 14(3 - 3)? O A. 14(1 : 3) B. (14 • ;)) O C. 1431 O D. D. (1. 114 3 )
Answer:
a
Step-by-step explanation:
Manassas Park is selling tickets for their fall musical. On the first day of sales, we sold 3
adult tickets and 9 student tickets. They made $75. On the second day of sales, we sold
8 adult tickets and 5 student tickets and made $67. How much does an adult and a
student ticket cost?
Answer:
Adult: $ 4
Student: $ 7
Step-by-step explanation:
Adult: x
Students: y
a) 3x + 9y = 75
b) 8x + 5y = 67
Substitution:
a) 3x = -9y + 75
x = (-9y + 75)/3
x = -3y + 25
Substitute:
b) 8(-3y+25) + 5y = 67
-24y + 209 + 5y = 67
-19y = -209 +67
y = -133/-19
y = 7
Substitute:
x = = 3(7) + 25
x = -21+25
x = 4
Yolanda makes $1,196 gross income per week and has claimed two allowances. According to the table below, what is Yolanda’s weekly net income after tax withholding?For weekly gross income between 1,190 and 1,200 dollars and claiming 2 allowances, the amount withheld is 317 dollars per week.a.$879b.$317c.$873d.$1,513
Answer:
$879
Step-by-step explanation:
Answer: it's A
Step-by-step explanation:
1/3(2x-3/7)+1/6x=4/7
Answer:
[tex]x=\frac{6}{7}[/tex]
Step-by-step explanation:
Hope this helps!
Guided Practice
What will the height of the pumpkin be when it has been in the air for 1 second?
A.
15 feet
B.
85 feet
C.
91 feet
D.
69 feet
Answer:
D.
69 feet
Step-by-step explanation:
Substitute 1 into the function for t and solve.
h( 1 ) = −16 ( 1 ) 2 +70( 1 )+15 h( 1 ) = 69h left parenthesis 1 right parenthesis equals negative 16 left parenthesis 1 right parenthesis squared plus 70 left parenthesis 1 right parenthesis plus 15 line break h left parenthesis 1 right parenthesis equals 69
Answer:
A i think its wrong srry
Step-by-step explanation:
simplify :
12⁷*28⁶
_______
21⁷*16⁶
Answer:
Step-by-step explanation:
Prime factorize 12 , 28 , 21 and 16
12 = 2 * 2 * 3 = 2² * 3
28 = 2 * 2 * 7 = 2² *7
21 = 3 * 7
16 = 2 * 2 * 2 * 2 = 2⁴
[tex]\dfrac{12^{7}*28^{6}}{21^{7}*16^{6}}=\dfrac{(2^{2}*3)^{7}*(2^{2}*7)^{6}}{(3*7)^{7}*(2^{4})^{6}}\\\\\\\\=\dfrac{2^{2*7}*3^{7}*2^{2*6}*7^{6}}{3^{7}*7^{7}*2^{4*6}}\\\\\\=\dfrac{2^{14}*3^{7}*2^{12}*7^{6}}{3^{7}*7^{7}*2^{24}}\\\\\\=\dfrac{2^{14+12-24}*3^{7-7}}{7^{7-6}}\\\\\\=\dfrac{2^{2}*3^{0}}{7^{1}}\\\\\\=\dfrac{2^{2}}{7}[/tex]
Hint:
[tex]a^{m}*a^{n}=a^{m+n}\\\\\\(a^{m})^{n}=a^{m*n}\\\\\dfrac{a^{m}}{a^{n}}=a^{m-n} \ if \ m >n\\\\\\\dfrac{a^{m}}{a^{n}}=\dfrac{1}{a^{n-m}} \ if \ n>m[/tex]
What is the difference between reciprocal, opposite, and inverse in math?
Answer:
The difference between “inverse” and “reciprocal” is just that. ... “Inverse” and “reciprocal” are terms often used in mathematics. “Inverse” means “opposite.” “Reciprocal” means “equality,” and it is also called the multiplicative inverse.Step-by-step explanation:
Answer: Reciprocal- when you flip the denominator and the numerator in a fraction
Step-by-step explanation:
Find the value if f(x) = -3x - 8 and g(x) = x2 + 3. Find the value g(-5) =
Step-by-step explanation:
g(x) = x² + 3
g(-5) = (-5)² + 3
g(-5) = 25 + 3
g(-5) = 28
Sarah took a 20? Test and got 17 problems correct what percent did she get
Answer:
85%
Step-by-step explanation:
Divide the number of problems gotten right by the total number of problems.
Sarah got an 85%.
Use this method.
part/whole = %/100
So.
17/20 = x/100
Cross multiply.
17•100=1700
20•x=20x
Divide by 20
1700÷20=85
Therefore the answer is 85%
Im reading the book Elie Wiesel
1. How does Elie manage to keep some of his teeth temporarily?
2. What happens to people who disobey the rules of the camp?
3. Why does the hanging of the “pipel” stay in Elie’s mind?
Answer: 1. tells the dentist that he doesn't feel well and that he will come back next time.
2. get sent to the crematory
3.Because the boy was young and beautiful.
hopes this helps
Which number replaces the question mark?
Answer:
iI think the answer is 9
Step-by-step explanation:
[tex]\sf 2x+12=4[/tex]
Answer:
x = -4
Step 1: Take all the constants on one side and the variables on the other.
(2 × x) + 12 = 4
=> (2 × x) = 4 - 12
(2 × x) = -8
Step 2: Divide 2 both sides to isolate 'x'.
=> [tex]\frac{2x}{2}[/tex] = [tex]\frac{-8}{2}[/tex]
=> x = -4
Hoped this helped.
DUE IN 15 MINUTES PLEASE HELP
Tony and Ricky spend a certain amount of money from their accounts each week at a pet shelter.
The table shows the relationship between the amount of money (y) remaining in Tony's account and the number of weeks (x):
Function 1:
Number of Weeks
(x) Amount Remaining (dollars)
(y)
1 30
2 24
3 18
4 12
The equation shows the relationship between the amount of money, y, remaining in Ricky's account and the number of weeks, x:
Function 2:
y = –7x + 30
Which statement states and explains which function shows a greater rate of change?
Function 1, because Tony spends $6 each week and Ricky spends –$7 each week
Function 2, because Ricky spends $7 each week and Tony spends $6 each week
Function 1, because Tony spends $18 each week and Ricky spends $23 each week
Function 2, because Ricky spends $30 each week and Tony spends $18 each week
Answer:
Function 2, because Ricky spends $7 each week and Tony spends $6 each week
Step-by-step explanation:
You find the rate of weekly rate of change by calculating the difference of the amount changing each week:
24 - 30 = - 6
18 - 24 = - 6
12 - 18 = - 6
As you see the rate of change is constant: - 6 dollars per week. This means that Tony is spending 6 dollars every week
Function 2: y = –7x + 30
The rate of change is the slope (m) of the linear function, and this is the coefficient of the independent variable, x.
This equation is written in slope intercept form (y= mx+b)
Then the rate of change is - 7 dollar per week. This means Ricky spends 7 dollars every week.
Now you know that the two rates are constant and that the second function shows a steeper decreasing.
Answer: it’s b lol
Step-by-step explanation: got it right on my quiz
1 If finding unit rate, what would be the best buy for potato chips? A. 18 oz. for $4.17 B. 32 oz for $7.92 C. 20 oz for $5.19 D. 30 oz for $5.99
Answer:
B.
Step-by-step explanation:
Unit rate is $4.04 per oz
Please help Please help
Answer:
with what
Step-by-step explanation:
Find the value of x.
X = 88°
based on the isosceles triangle, you can solve it.
Noah Invested $2500 in an account paying 3.5% simple interest. How much was his account
worth after 5 years?
A. $2937.50
B.$437.50
C.$2587.50
D.$2969.22
_______
[tex] \: [/tex]
$2.500 × 3,5% = $87.500
Soo :
$87.500 × 5
= $437.50 (B.)
Find the value of x.
Answer:
x is 60 because the total of angles in a triangle is 180 degrees
Answer: 5
Step-by-step explanation:
Since we are given two angles and one side, we can use the side angle side comparison logic to figure out that all sides are 7 and all angles are 60. Since we are given that a side with length 7 is also 2x-3, we can infer that 2x-3=7. 2x=10, x=5. easy
MARKING BRAINLIEST
Ryan wants to describe the translation shown on the grid below.
On a coordinate plane, triangle X Y Z is shifted 1 unit to the left and 3 units up to form triangle X prime Y prime Z prime.
Ryan uses the following steps to describe the translation.
Step 1 Identify the pre-image and the image:
The pre-image is triangle XYZ, and the image is X prime Y prime Z prime.
Step 2
Identify the number of units that each point moves horizontally:
Each point moves one unit left.
Step 3
Identify the number of units that each point moves vertically:
Each point moves three units down.
Step 4
The translation is one unit left and three units down.
In which step did Ryan make the first error?
Step 1
Step 2
Step 3
Step 4
Answer:
Step 3 TRUST ME
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
What is the quotient of -3/8 and -1/3?
A. -1 1/8
B. -1/8
C. 1/8
D. 1 1/8
Answer: A
Step-by-step explanation: if i recall, for the second Number, when flipping the number the sign flips to. If it's not A, it's D
-3/8 × 3/1 = -9/8= 1 1 / 8
PLEASE HELP ASAP!!! WILL GIVE BRAINLIEST!!! Test each statement below to see if it is reversible. If it is reversible, write it as a true biconditional. If not, write not reversible.
1. If a whole number is a multiple of two, then the whole number is even.
2. Rabbits are animals that eat carrots.
3.Two lines that intersect to form four 90 degree angles are perpendicular.
4. Mammals are warm blooded animals.
Answer: 1. not revisable
2. not revisable
3. Not reversible
4. not revisable
Step-by-step explanation: 1.Likewise, a number is a reversible multiple if the number formed by 2058 is not reversible because 8502/2058 = 4.131, which is not a whole number
2. When rabbits eat carrots you cannot form the carrot back to its original form so that's why its irreversible (not/non revisable)
3.If two perpendicular lines intersect, they form four 90* angles. ... whose sum measures to 90 degrees - The statement is not reversible
4. a few species of cold-blooded mammals exist but you cannot change a warm blooded animal into cold.
Please help me with my math yes or no question
Answer:
no
Step-by-step explanation:
help me no link dummys jk A venue is preparing for a concert on the floor shown.The width of the red carpet is 1/6 of the width of the floor.What is the area of the red carpet
Answer:
The area of the red carpet is 1057 ft²
Step-by-step explanation:
The area of the red carpet is 112.35 ft².
Given that, the width of the stage =63 ft and the length of the stage =10 2/3 ft.
What is the area of a rectangle?The area of a rectangle is obtained by multiplying its length and width. Thus, the formula for the area, 'A' of a rectangle whose length and width are 'l' and 'w' respectively is the product "l × w".
Now, the width of the red carpet is 1/6 of the width of the floor = (1/6) × 63
=10.5 ft
Here, 10 2/3 can be written as 10.66 ≈ 10.7 ft
The area of the red carpet = length × width = 10.7 × 10.5
=112.35 ft²
Therefore, the area of the red carpet is 112.35 ft².
To learn more about the area of a rectangle visit:
https://brainly.com/question/20693059.
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