Answers
Answer:
Bettina= X(let)
Darren=3x
Jonathan=6x
120=X+3x+6x
X=12
so Bettina=12 yrs
Darren=36 yrs
Jonathan=72 yrs
Answer:
Step-by-step explanation:
Let Bettina's age be B.
Then Darren's age is 3 times Bettina's, or 3B.
Jonathan's age is twice that of Darren, i.e. 2 (3B) = 6B.
Altogether, the sum of their age is
B + 3B + 6B = 120 years
10 B = 120 years
B = 12 years.
Therefore
Bettina is 12 years old
Darren is 3 times as old as Bettina, so 36 years old.
Jonathan is twice that of Darren, so 72 years old.
Total = 72+36+12= 120 years, check! :)
Related Questions
help please i need help please
Answers
Answer:
B and D
Step-by-step explanation:
Brainliest for correct answer! :)
Answers
Answer:
280
Step-by-step explanation:
Megan recently invested $2,000 dollars in a fast-growing company. Her financial advisor expects that Megan's investment will grow in value by approximately 6% every month.
a) Write a function rule I(m) that models the value of Megan's investment after m months.
b) How much will her investment be worth in two years? Round to the nearest cent.
Answers
Answer:
2090
Step-by-step explanation:
0.06 × 2000 =120 therefore 120 × 24 =2088. and round off to the cent
Please help and show the formula used, along with all substitutions and calculations needed
Answers
Answer:
The given triangle is right.
Step-by-step explanation:
The Pythagorean converse theorem states the following: if one can substitute the sides of a triangle into the following formula:
[tex]a^2+b^2=c^2[/tex]
If the equation formed is a true statement, then the triangle is right, if it is not, then the triangle is not right. In this case, one is not given the angle that has the right angle, however, the hypotenuse is the longest side in a right triangle. Therefore, if the triangle is right, then the hypotenuse is the longest, then side (c) is the longest side in the given triangle. Then side (a) and (b) are the legs, the sides adjacent to the right angle. It doesn't matter which sides one substitutes for these parameters.
Substitute in the given values and solve to prove the triangle is right,
[tex]a^2+b^2=c^2\\[/tex]
Substitute,
[tex](9.6)^2+(12.8)^2=(16)^2[/tex]
Simplify,
[tex]92.16+163.84=256[/tex]
[tex]256=256[/tex]
The given triangle is right since its sides follow the Pythagorean converse theorem.
find three consecutive odd integers such that the sum of the last two is 15 less than 5 times the first
Answers
2n + 1 , 2n + 3 , 2n + 5
____________________________
( 2n + 5 ) + ( 2n + 3 ) = 5 × ( 2n + 1 ) - 15
4n + 8 = 10n + 5 - 15
4n + 8 = 10n - 10
Add both sides 10
4n + 8 + 10 = 10n - 10 + 10
4n + 18 = 10n
Subtract both sides 4n
4n - 4n + 18 = 10n - 4n
18 = 6n
Divide both sides by 6
18 ÷ 6 = 6n ÷ 6
n = 3
_________________________________
Thus that three numbers are :
2(3) + 1 , 2(3) + 3 , 2(3) + 5
6 + 1 , 6 + 3 , 6 + 5
7 , 9 , 11
And we're done ....
Gunther's starting weight is 248 pounds, and he plans to lose 2 pounds each week. Use a linear equation to determine Gunther's weight after 10 weeks. what linear eqution?
Answers
Let p = total pounds
Let w = number of weeks
248p - 2w= 10
Hope that helps :)
The lines represented by the equations y = 2x – 2 and 2y - 4x = 2 are
O perpendicular
O neither parallel nor perpendicular
O the same line
parallel
Answers
Answer:
They are parallel but not the same
Step-by-step explanation:
because they have same slope or gradient which is 2
Alyssa takes part in the triathlon. She cycles 4/5 of the route, runs 7/8 of the route, and swims the rest of the way. She swims 0.9 miles. Find the total distance of the triathlon route.
Answers
Answer:
12 miles
Step-by-step explanation:
Alyssa takes part in the triathlon. She cycles 4/5 of the route, runs 1/8 of the route, and swims the rest of the way. She swims 0.9 miles. Find the total distance of the triathlon route.
Total distance Alyssa cycled and ran =
[tex]\frac{4}{5} + \frac{1}{8}[/tex]
[tex]\frac{32 + 5}{40}[/tex] = [tex]\frac{37}{40}[/tex]
Distance she swam = 1 - 37/40 = 3/40
3/40 of the distance is 0.9
the total distance = 40/3 x 0.9 = 12 miles
What's the exact length of BC?
A) 8√3
B) 5√6
C) 12
D) √306
Answers
Answer:
The answer is (15)²= (9)²+(BC)²
225=81+(BC)²
BC=√144
BC=12
They also have a pdf for it
copy and paste this pdf it should help you mepanswers.pdfStep-by-step explanation:
1) Is it a function?
Please help
Answers
Answer:
Hi, there your answer is yes it is a function
Step-by-step explanation:
A function is when x is not repeating itself like -3, 3
A not a function is when x is repeating for example like 3,3
Hope this Helps :)
PLEASE HELP ME AT LEAST ONE OF THESE IF YOU KNOW
Answers
Step-by-step explanation:
answer of number 5
length=7cm
breadth=9 cm
height=6 cm
volume=?
we know
v =l×b×h
=7×9×6
=378
so, the volume is 378 cm
Answer:
cone, radius is 3^2 x pi x 7/3 = 65.98
Step-by-step explanation:
If m is a common divisor of x and y, then x/y = (x ÷ k)/______
Answers
Answer:
[tex]\frac{x}{y} = \left(\frac{x}{y} \right)\cdot 1 = \left(\frac{x}{y}\right)\cdot \left(\frac{m}{m} \right) = \frac{\frac{x}{m} }{\frac{y}{m} }[/tex]
Step-by-step explanation:
The common divisor is the greatest natural number so that two or more natural numbers have no remainder. If [tex]m[/tex] is a common divisor of [tex]x[/tex] and [tex]y[/tex], then [tex]p = \frac{x}{m}[/tex] and [tex]q = \frac{y}{m}[/tex], where [tex]p[/tex], [tex]q[/tex] [tex]\in \mathbb{Z}[/tex]. Then, we have the following expression:
[tex]\frac{x}{y} = \left(\frac{x}{y} \right)\cdot 1 = \left(\frac{x}{y}\right)\cdot \left(\frac{m}{m} \right) = \frac{\frac{x}{m} }{\frac{y}{m} }[/tex]
Johnny wants to buy a set of drums that cost $2000, it requires a 15% down payment. The remainder plus an additional finance charge is paid back on a monthly basis of 25 months. the monthly payment is $80. What is the finance charge.
Answers
Answer: The finance charge = $ 300
Step-by-step explanation:
Given: cost of drums = $ 2000
Down payment = 15% of 2000
= 0.15 x 2000
= $300
Total installments = (Number of months) x (Monthly charge)
= 25 x $ 80
= $ 2000
Finance charge = Down payment + Total installments - cost of drums
= $ (300+2000-2000)
= $ 300
Hence, the finance charge = $ 300
students who buy tickets at a local movie theater receive a 10% discount on the price of a ticket. what is the total price for the 4 students tickets if the regular cost per ticket is $6.00.
options- $21.60, $26.40, $6.60, or $5.40
Answers
Answer:
$21.60
Step-by-step explanation:
Answer:
Answer is $ 21. 60
Step-by-step explanation:
$22 or 21.60 in decimal form
Step-by-step explanation: $6.00 - 10% is 5.4
5.4 + 5.4 +5.4+5.4 is 21.60
you can also round this off and get the answer as $ 22 .
Hope this answer helps you :)
Have a great day
Mark brainliest
[tex]{[x,y]:y=\frac{x}{x-8}][/tex]
Answers
i19-1 practice question seven
Answers
Answer:
D
Step-by-step explanation:
Answer For Correctly Brainiest!
Answers
Answer:
48 [tex]in^{3}[/tex]
Step-by-step explanation:
Surface Area (SA) of a pyramid = [tex]\frac{bh}{3}[/tex]
Surface Area = 36 · 4/3
Surface Area = 144/3
Surface Area = 48
For a going-out-of-business sale, a jewelry shop owner
marks all of the store's merchandise 50% off. The price
tag on a necklace indicates that it is an additional 20%
off the sale price. If the original price of the necklace was
$600, what will it cost after the discounts?
Answers
Answer:420
Step-by-step explanation:
600 x 0.70 is 420. so 600 minus 420 is 180
Find the area of the composite figure
Answers
Answer:
the answer is 360
Step-by-step explanation:
multiply the numbers to get the answer
The image below shows F with perpendicular tangent lines at points A and B.
Answers
Step-by-step explanation:
a) A & B are tangent points and that makes angle AFB = 90°
b) Since line DB is a diameter, that makes arcADB a semicircular arc.
c) We know that A & B are tangent points which makes the figure AFBC a square.
1. solve for p: p - 17 = 13
2. solve for m: 23 + m = 31
Answers
Answer:
[tex]\huge\boxed{Answer\hookleftarrow}[/tex]
1st Question :-[tex]p - 17 = 13 \\ p = 13 + 17 \\ p = 30[/tex]
✍ The value of p is 30.
2nd Question :-[tex]23 + m = 31 \\ m = 31 - 23 \\ m = 8[/tex]
⎆ The value of m is 8.
ʰᵒᵖᵉ ⁱᵗ ʰᵉˡᵖˢ
# ꧁❣ RainbowSalt2²2² ࿐
Answer:
p=30, m=8
Step-by-step explanation:
1. if p - 17 = 13, then p = 13+17, which is equal to 30
2. if 23 + m = 31, then m = 31-23, which is equal to 8
Do the opposite of the sign, for instance in question 1 it's -17, so you would +17 to calculate p.
what does it mean to find the net change of something?
Answers
Which is a true statement based on the dot plots below?
10 20 30 40 50 60
10 20 30 40 50 60
Set A
Answers
Which value is a solution of the equation 8y=56?
Answers
Answer:
7
Step-by-step explanation:
If you divide 8y / 8 then you have to do the same thing to 56. When you do, y = 7
Answer:
7Step-by-step explanation:
I got it right on I-ready.
Hope this helps!
From: Aug1e
Question 44.
What is the value of the expression 6 (A) -5 when A=3
Answers
Answer:
13
Step-by-step explanation:
6(A)-5
Sub 3 into A
6(3)-5
Multiply 3 by 6
18 - 5
=13
Answer:
6(3)-5
18-5
=13
Step-by-step explanation:
solue for X
will give brainliest
don't put links or will be reported
Answers
Answer:
x = 9.85 units
Step-by-step explanation:
sin 38° = x/16
cross-multiply to get:
x = 16·sin 38° which equals 9.85
PLEASE HELP!!! 50 POINTS. Identify each graph as a linear function, nonlinear function, or not a function.
Answers
Answer:
1)non linear
2)linear
3)non linear
4) not a function
(Help!) I need somebody (Help!) Not just anybody (Help!) You know I need someone (Help!). Algebra question :)
Answers
Step-by-step explanation:
meetcome on (Help!) You know I need someone (Help!). Algebra question :)
Answer:
the 1st, 3rd, 6th and last one
Step-by-step explanation:
just use square roots
A recipe for fruit punch is 3 parts orange juice to 2 parts apple juice. Jim mixes 180 ml of orange juice with 120 ml of apple juice.
Has Jim made the fruit punch correctly? Explain your answer.
PLEASE HELP ASAP
Answers
solve for r. r - 4.5 < 11
Answers
Answer:
r < 15.5
Step-by-step explanation:
r - 4.5 < 11
r (- 4.5 + 4.5) < 11 + 4.5
r < 15.5