Answer:
23
Step-by-step explanation:
69 divided be 3
= 23
step 2
23 + 23 = 46 ( Alvin age)
step 3
69 -46= 23 Elga age
Answer:
Elga's age is 23
Step-by-step explanation:
To solve this, we need to make our equation.
2x+x=69
In this equation, 2x is Alvin's age, while Elga's age is x. The 69 is the sum of their ages.
Combine the like terms in this equation.
3x=69
Divide both sides by 3
3/3x=69/3
x=23
Elga's age is 23, but we still need to check to make sure we are correct.
To do this, plug in 23 for x.
2(23)+23=69
46+23=69
69=69
Do we get a true statement? Yes, so we are correct.
If g(x) is the inverse of f(x), what is the value of f(g(2))?
Please help :(... when I posted this with 50 points someone gave me incorrect answers..
Answer:
22)43300000, 23)~7, 24)~20
Step-by-step explanation:
22)6.48*10^(7)-(2.15*10^(7))=4.33*10^7 (or 43300000)
23)2.95*10^6=2950000, 2.15*10^7=21500000, 21500000/2950000=~7
24)1.3*10^9=130000000, 1300000000/64800000=~20
Answer:
Step-by-step explanation:
22. You can write these exponents out if it makes it easier to understand, then convert back into exponential form.
6.48 x 10⁷ = 64800000 France
2.15 x 10⁷ = 21500000 Australia
Subtracting Australia from France = 43300000
Converting back to exponential would be 4.33 x 10⁷
But if you notice both number have the exponent of 10⁷. Since these are both the same, you can just subtract the whole number for Australia from the number for France 6.48 - 2.15 = 4.33
then just put the exponent on the end. 4.33 x 10⁷
23. Again it might be easier to convert to standard numbers first.
Area of Australia = 2.95 x 10⁶ or 2950000
Population = 2.15 x 10⁷ or 21500000
So population per square mile would be population divided by area.
21500000 / 2950000 = 7.3 people per square mile
Now if you look at the two numbers, the exponents are only different by 1. You can easily make the population have the same exponent as the area by moving the decimal place of the whole number
Population 2.15 x 10⁷ is the exact same as 21.5 x 10⁶. Now since both number have the same exponents, you can cancel those out and just divide the whole numbers. 21.5 divided by 2.95 which also equals 7.3.
24. You can look at this the same way.
China population 1.3 x 10⁹ is 1300000000
France population 6.48 x 10⁷ is 64800000
Dividing China by France you get about 20.1 which means China is about 20.1 times great in population than France.
If you use the same method as in question 23, you can change the population of China so the exponent matches that of France.
1.3 x 10⁹ is exactly the same as 130 x 10⁷
Again, since both exponents are the same, you can cancel them out and just divide the whole numbers.
130 / 6.48 which also equals about 20.1
2.)
Given m
li
n, find the value of x and y.
40°
m
yº
n
I
Answer:
X=40 (corresponding angles m parallel to n)
y=40 (vertically opposite angles are equal in size)
Do the graphs of certain types of relationships share any characteristics?
Answer:
I took this question. C:
Step-by-step explanation:
Your Answer is B, D, F
Find the midpoint of the line segment that connects (-3,5) and (5. - 3).
Answer:
(1,1)
Step-by-step explanation:
The cost for painting a shed is 8,00. If the dimensions of a similar shed are havled, what would the cost be for painting the reduced sized shed?
Answer:
4
Step-by-step explanation:
8/2=4
A box of cookies contained 40 cookies. Sara and her friends ate 60% of the cookies. How many cookies did Sara and her friends eat? *
Step-by-step explanation:
Since Sara and friends ate 60% of the container of cookies, it means that they ate 60% of 40 cookies.
∴
How many cookies Sara and Friends ate = total × (percentage of cookie ate)
= 40 × 0.60
= 24
MATH To provide additional employment and add
to its tax base from businesses, Yorketowne's city
council opened a business park on the edge of the
city. After five years, they had attracted two new
manufacturers and four supporting service busi-
nesses to the park. The total value of the property
of all six businesses was $15,825,500. The compa-
nies paid $0.78 per $1,000 of property value each
year as property tax. In addition, the businesses
employed 328 people at an average salary of
$36,000. Each person paid a 1 percent city income
tax each year,
a. What is the total amount of taxes the city col-
lected as a result of opening the business park?
b. In addition to the tax dollars, what other ben-
efits might the city receive from opening the
business park?
PLS HELP WILL MARK YOU BRAINLIEST NO FAKE ANSWERS
a air balloon is at a height of 2,520 feet. it begins to descend at the rate of 140 feet per minute.
1.Write an expression to model its height after x minutes
Answer:
2,520 - 140x
Step-by-step explanation:
It's 140 feet per minute, so if you need to find it's height after x minutes you just plug in your value for x.
Please mark brainliest if possible and have a nice day!
PLEASE HELP!!!! Which of the following angles would NOT be
congruent to the measure of Z7 ?
Answer:
Angle 8
Step-by-step explanation:
Derek, Erica and Fred share £108 in the ratio 3:4:2
Calculate the amount of money Erica gets.
Answer:
£48
Step-by-step explanation:
3+4+2=9
108 divide by 9=12
12*4=48
TELL IF THE EXPRESSION IS A POLYNOMIAL OR NOT
Answer:
yes it is a Ploynomial
Step-by-step explanation:
Answer:
yes it is a polynomial
Step-by-step explanation:
with
Degree = 4
Leading Coefficient = 2
constant term = 0
plese help me with it
Answer:
ITS 4- MINUS
Step-by-step explanation:
OKEH OKEH OKEH OKEH
Each side of a square is (7 + 3x) units. Which is the perimeter of the square?
CLE
2x units
28 + 3x units
12x units
49 + 9x units
Answer:
49 + 9x units
Step-by-step explanation:
perimeter is sum of all the sides
Will give brainliest!
Triangle ABC is reflected across the line y = 2x to for triangle RST.
Answer: 1, 4, 5
Step-by-step explanation:
I took the quiz
a car is traveling at a speed of 72 miles per hour. what is the cars speed in feet per second
Answer:
72.00 =105.6
Step-by-step explanation:
i searched it up
If y is 6 when x is 3 and y varies directly with x, find y when x is 8.
04
16
11
Answer
y = kx
from the info given k=2
hence when x=8 y=16:
Ivy wants to earn at least $800 this week in commission. What is the minimum amount she needs to sell in order to earn $800 if she earns a 6.25% commission on everything she sells? Round your answer to the nearest dollar if necessary.
Answer:
$12,800
Step-by-step explanation:
800÷0.0625=12,800
what is the asymptote of y=tan(2x+3)?
Answer:
Hope this helps!
Step-by-step explanation:
Julie borrowed $3,500 for 3 years at 7% simple interest rate. How much interest is that? *
What is the answer too y+6x=11; x= -1,0,2
Answer:.
Step-by-step explanation:
there are about 795 house in this region . the average family size is 6 people . there
are about __________ people living in the region
then round off your answer to the nearest tens .
Answer:
4770 people
Step-by-step explanation:
795*6= 4770
Evaluate 5y1-y0 if y=-8
Answer:
-40
Step-by-step explanation:
5*(-8)*1-(-8*0)
-40+0
-40
convert 60 miles per hur o feet per minute
Answer:
12
Step-by-step explanation:
22becuase it just right I think
Answer:
5280.
Step-by-step explanation:
multiply the miles by 88.
Heeeelppppppp meee pleeease
Step-by-step explanation:
as there are only 3 types of discontinuity overall : A, B and C.
there is no fourth, so D is out.
to check we use x = 2 in both equations and see, if and how the 2 connect or disconnect at that point.
5x + 4, x = 2
5×2 + 4 = 14
this is finite and a well-defined number.
2 - x, x = 2
2 - 2 = 0
this is again finite and well-defined.
but it is different from 14 above.
there is no multiplication factor or so that causes special values. so, there is no removable discontinuity. A is out.
none of the values at the point go to infinity, so there is no infinite discontinuity. B is out.
but yes, the functional value Suendenbock suddenly jumps at the point from 0 to 14 without any connection.
so, yes, it is a jump. C is right.
Write an addition equation or a subtraction equation your choice!) to describe the diagram.
6-
3
0
Answer:
5+2=7
Step-by-step explanation:
The two figures are similar to find the ratios (shaded to non-shaded) of perimeters
perimeter of non-shaded part = 7
perimeter of shaded part = 9
so ratio of shaded to non shaded is =
shaded:non shaded = 9:7 = 9/7
so option b is correct
Answer:
I think it's 9/7 for the nonshaded one and the shaded one is 81/49
Step-by-step explanation: To be honest i'm using both division and multiplication that's really all ad hope I helped you out yo.
HELP WILL MARK YOU BRAINLIEST NO FAKE ANSWERS
[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪ {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]
The Above statement can be represented as :
[tex] \dfrac{4}{9} g + 20[/tex]therefore , the correct choice is A.
Answer:
a =4/9g +20
Step-by-step explanation:
PLS MARK BRAINLIEST
help me please !!!!!
Answer:
24
x-18=24
x=24+18
x=42
2 (a) The area of a rectangular garden is 6256 m If the length of the garden is 92 m, what is its width?
(b) The perimeter of a rectangular window is 240 cm. If the width of the window is 51 cm, what is its length?
Answer:
a) Width: 68 m
b) length: 69 cm
Step-by-step explanation:
A = length x width
6256/92 = 68
(2 x width) + (2 x length) perimeter
240 - 102 = 138
138/2 = 69