Answer:
the oldest sibling is 12 years old.
The middle child is 9 years old.
The youngest child is 6 years old.
Step-by-step explanation:
Let the age of the youngest child be x
Then the oldest child will be 2x.
The middle child will be x + 3.
Since the combined age is 27;
x + 2x + x + 3 = 27
4x = 27 - 3
x = 24 / 4
x = 6
now 2x = 12 and x + 3 = 9
Answer:
oldest is 12
middle is 9
youngest is 6
all add up to 27
Step-by-step explanation
idk if i did this right but i did 27 -3 =24
then i divide 24 by 2 which is twelve (the oldest's age)
then 12 divided by 2 is 6 which is the age of the youngest one
6 + 3 is 9, which is the age of the middle one.
25.89= 15.19 + 2x
What is X
Answer:
[tex]25.89=15.19+2x[/tex]
[tex]x=5.35[/tex]
I hope this helps!
what is the distance of the line segment between the endpoints (-6,5),(4,-5)
Mikes home street address number has 5 digits . Two digits have values of 50,000 and 200 . The digits in the ones place is 3 . The value of each of the other digits is ten times the value of the digits on its right . What is mikes home street address number ?
Answer: Mikes home street address number = 52233
Step-by-step explanation:
We need to make a 5 digit number such that
Two digits have values of 50,000 and 200 .
The digits in the ones place is 3 .
Now number is like 50,000 +x + 200 + y + 3 (ten thousand > thousand > Hundred > tens > ones )
Need values for : thousands place and tens place
The value of each of the other digits is ten times the value of the digits on its right .
thousands place value (x)= 200 x 10 = 2000
tens place value (y)= 3 x 10 =30
Required number = 50,000 +2000 + 200 + 30+ 3 = 52,233
∴Mikes home street address number = 52233
A pound of chocolate costs 7 dollars. Deandre buys p pounds. Write an equation to represent the total cost (c) that Deandre pays.
Answer:
C=7(p)
Step-by-step explanation:
Answer:
c=7p
p=pounds
c=costs
CORRECT ANSWER WILL GET BRAINLIEST!!!!
Answer: The answer is B. x=125
Step-by-step explanation: Brainliest plz :)
PLEASE HELP I WILL GIVE BRAINLYEST
-8x+-20=
Answer:
− 8 x- 20,
x = - 5/2
Step-by-step explanation:
rewrite 20 as 4 times 5,
and rewrite 8 as 4 times 2
= -4 times 2x - 4 times 5
= -4 (2x + 5)
A store is marking down the price of a television 25 percent from the original price of $250. Which expression can be used to find the marked down price?
Answer:
250 × 0.25
Step-by-step explanation:
x/250 × 25/100
cross multiply
100x = 250 × 25
100x = 6250
divide by 100
x = 62.5
62.5 is how much the price got marked down
original price - marked down amount = new discounted price
250 - 62.5 = 187.5
$187.50 is now the actual price
As for which expression can be used to find the marked down price, none are listed in this problem and I'm assuming its a multiple choice question considering the wording of "which"
how i solved it is through cross multiplication but another way is by using the expression:
250 × 0.25
this is because 25% equals 0.25
Solve 5x − 2(2x − 1) = 6
Answer: x = 8
Step-by-step explanation:
The answer begins with the distributive property, multiplying positive 2 times the elements in parenthesis.
5x - (2)(2x - 1) = 6
5x - 4x - 2 = 6
1x = 6 + 2
x = 8
Pls help i need this math question solved Brainleist to the first person
Answer:
x = 10°
Step-by-step explanation:
8x + 50 = 130 (corresponding angles are equal)
8x = 80
x = 10°
Bob and his fish friends have been noticing these weird silver things hanging out the in the water lately. They have also noticed that some of their friends seem to be disappearing. Bob wonders if the two are related. Their school of fish started with 450 fish in it but now they only have 360 fish in their school. By what percentage was the population of their school of fish reduced?
Answer:
450
Step-by-step explanation:
subtract
Answer:
I am pretty sure 25%
Step-by-step explanation:
I had this question before
Show that 3 · 4n + 51 is divisible by 3 and 9 for all positive integers n.
Answer:
4^1 + 17 = 21 , which is divisible by 3. 4^k + 17 and 3 * 4^k are both divisible by 3, so 4^k + 17 + 3 * 4^k is divisible by 3 as well. 3 * (4^n + 17) would be divisible by 9
A ratio is a comparison of ____ numbers or measurements
Answer:
the answer is: "a ratio is a comparison of two numbers or measurements
Please answer. The best answer will be marked brainliest.
take out the square root of 543. 192
and secondly take out the cube root of same number which is given up
(-49) - (-66)
Pls give relevant ans
Answer:
Step-by-step explanation: -49 -(-66)
= -49 + 66 ( here (-) and (-) is multiplied, therefore the final answer is +)
= 17 ( here when - and+ sign comes subtract them as we do normally, then mark the final answer with the greater number's sign, here the greater number is 66, so in the final answer we mark +17 or 17)
Simplify the expression.(1/3)4
Answer:
4/3 or 1 1/3
Step-by-step explanation:
Percentage of the different pets people own Dogs 50% Cats 30% Birds 10% Reptiles 5 % Other Rodents 1% 4% f the total number of homes with a pet is 400, the number of homes with a pet cat is: 120 160 400 30
Answer:
I think its 160 sorry if you get It wrong
Answer:
120
Step-by-step explanation:
What is the scale factor for this dilation?
Solve the following.................................................................................
Answer:
21
Step-by-step explanation:
Answer:
21
Step-by-step explanation:
7÷[tex]\frac{1}{3}[/tex]
7*[tex]\frac{3}{1}[/tex]
21
(IF YOU GIVE ME THE CORRECT ANSWER YOU GET BRANIEST) as part of a summer job, you stack crates. the crates have the same length and width but have heights of 1 or 2 feet. using a forklift, you can stack the crates 8 feet high. if you stacked 3 of the 2-foot crates how many of the 1-foot crates were in the stack? please help!!
Answer:
2 one foot crates were in the stack.
Step-by-step explanation:
if the forklift can hold 8 feet, and 3 two-feet ones were in the stack, that leaves 2 feet left, which allows for two 1-foot crates.
3x2=6
8-6=2
1x2=2
Please help!!!
Write an equation to represent the total weight, p, of a full animal watering pail, if the pail weighs 12 pounds and the water weighs 8.3 pounds per gallon,g.
Answer:
12+8.3(g)=p
Step-by-step explanation:
#of gal of water x 8.3 per gal. number of gallons of water is not given so it is represented by g
+ weight of pail which is given, 12
= p , weight of full pail
PLEASE HELP! ASAP!! ILY
Answer:
64m
Step-by-step explanation:
Perimeter is all of the sides added together.
Hope this helps :-)
What is -5 5/8 + 3 1/2?
Answer:
-17/8
Step-by-step explanation:
What is LCM of 4a and
10a
Please explain I don’t understand
Answer:
it is 20a
Step-by-step explanation:LCM means least common multiple.so the least common multiple of 4a and 10a is 20a
.hope this helps!
Why would there not be an x-intercept for this situation?
Answer:
Because you cannot go lower than 0ft when rock climbing.
Step-by-step explanation:
You can't go lower than sea level when rock climbing.
What is the range of the function y=sq root x+5
Answer:
[0,inf)
Step-by-step explanation:
inf means infinity logo
Country A has a population of 514,482 and Country B has a population of 523,407. How would you compare these populations
10. A snowstorm dumped 18 inches of snow in a 12-hour period. How many inches were falling per hour?
Answer:
1.5 inches I think
Step-by-step explanation:
18/12=1.5
Describe the relationship between a torus and a circle. I’ll give brainliest if correct!
Answer:
a torus is a surface revolution generated by a circle in three dimentional space about an axis that is coplanar with the circle
Step-by-step explanation:
i searched it
A Plane flies with a velocity of 52 m/s south in a 12 m/s wind blowing in the same direction. Find the
combined direction and velocity of the plane.
Answer:
64 m/s and south directionStep-by-step explanation:
Wind direction is sameWind speed = 12 m/sPlane velocity = 52 m/sCombined direction is
same = southCombined velocity
52 + 12 = 64 m/sI need help with 29 and 30
Answer:
29 is 1.50 i think
Step-by-step explanation:
Answer:
Area is 0.15. Measure ratio is 1:2.
Step-by-step explanation:
Area is length x width.
60 degree angle is half of 120 degree angle.