In 45 years will be 4 times older how old is she now
Answer and Step-by-step explanation:
The key for this has a current age and a future age. Sometimes these problems have more than one person or has a past age.
current age future age
x x+45
The future age is 4 times current age
x+45 = 4x
45 = 3x
15 = x
She is currently 15. 45 years from now she will be 60.
60 is 4 times her current age. So right now, she is 15.
#teamtrees #WAP (Water And Plant)
Answer:
11yrs (6months)
Step-by-step explanation:
11.5×4=45
Since .5 in years is 6 months
3/2*4/5 is equal or greater or less than 4/5
Answer:
Greater, because 3/2 times 4/5 is 1 1/5. A mixed number is bigger than a fraction.
Step-by-step explanation:
Marc has 80 blue marbles , and he wants to give away 15% of them to his friends . How many blue marbles will he give away? Proportions Marc will give away blue marbles.
Answer:
12 marbles
Step-by-step explanation:
0.15 times 80= 12
so
15% of 80 is 12
please explain denominator and numerator
Answer:
numerator on top
denominator on bottom
Step-by-step explanation:
I need help 79 points
Answer:
can u explain this a little bit more i think ik the answer but im not sure #3 is well i think it is 120#4 is 164.85 #5 is 40 yea hope this helps :)
Step-by-step explanation:
Answer:
#3 = 120
#4 = 164.85
#5 = 40
#6= 240
Step-by-step explanation:
hope i helped!
Pedro bought a movie ticket for $9.50 and popcom por $4.35. He has $8.75 left
over How much money did he have before he went to the movies?
Answer:
He had $22.60
Step-by-step explanation:
$9.50 + $4.35 = 13.85 + 8.75 = $22.60
Anyone know the answer to this?
2n^2/6^2+10n-1
Step-by-step explanation:
(6-n)(6+n)-(6+n)(6+n)/(6+n)(6+n)-(1-n)(1+n)
Question 6 of 10
What is the equivalent radical expression for the exponential expression
below?
151/2
O A √15²
B. 154
C. 15
D. 152
Answer:
√15
Step-by-step explanation:
Assuming that it is:
[tex]15^\frac{1}{2}[/tex]
Exponent rule for fractional exponents are:
[tex]x^\frac{a}{b}=\sqrt[b]{x^a}[/tex]
Apply rule:
[tex]15^\frac{1}{2}=\sqrt{15}[/tex]
Hope this helps!
A line through the origin and (10,4) is showin in the standard (x,y) coordinate plane below. The acute angle between the line and the positive x-axis has measure θ.
Answer:
[tex]\cos\theta=\frac{10}{\sqrt{116}}[/tex]
Step-by-step explanation:
To solve this, we can imagine a line drawn directly down from the point (10,4) to the x-axis. This would make a right triangle with length 10 and height 4.
[tex]\cos\theta[/tex] is equal to the length of adjacent leg to the angle divided by the length of the hypotenuse of the triangle. From the picture, we can see the adjacent leg is 10.
We can use Pythagorean's Theorem to find the hypotenuse (let [tex]c[/tex] represent the length of the hypotenuse):
[tex]10^2+4^2=c^2[/tex]
[tex]100+16=c^2[/tex]
[tex]116=c^2[/tex]
[tex]c=\sqrt{116}[/tex]
Thus, we know the adjacent is 10, and the hypotenuse is [tex]\sqrt{116}[/tex]. This means [tex]\cos\theta=\frac{10}{\sqrt{116}}[/tex].
Hope this helps!
Find the orthocenter of a triangle with vertices (−8, 11), (−3, 11), and (−3, −12).
The orthocenter of triangle is at ( , ).
Answer:
( -3, 11)
Step-by-step explanation:
find the equation of the line between points ( -8, 11) and (-3, 11)
y= mx +b , where m is slope snd b is y-intercept
m = (y2-y1)/ (x2-x1) = 11-11/ -8- -3 = 0/ -5 = 0 ( if slope is o is a horizontal line)
y = 0x + b and pick a point to find b
11 = 0*-8 + b so b= 11
y = 11 is the equation of the line between points ( -8, 11) and (-3, 11) and the equation of its perpendicular line is x=-3
the equation of the line between points (-3, 11) and ( -3, -12) is x= -3 and the perpendicular to it is y= 11
so we have a right triangle so the ortho center is at (-3, 11) where the vertex of the 90 degree angle is
3x3-5/5x6+19 i don’t know what I’m don’t wrong
Hi there!
For these two equations, we would be using PEMDAS...
[tex]3[/tex]·[tex]3=9-5=4[/tex]
[tex]5[/tex]·[tex]6=30+19=49[/tex]
Hope this helps!
If the quadrilateral below is a trapezoid, find the missing measures.
Answer: <c is 102 degrees <e is 45 degrees
Step-by-step explanation:
Which ordered pair represents the x- intercept?
Mia has 4 horses and 11 apples. She gives each horse the same number of
apples, and she uses as many apples as she can. How many apples does Mia
give each horse? How many apples are left?
» Complete the equation.
11 : 4 =
R
Answer:
She gives 2 apples to each horse, and there will be 3 apples left.
Step-by-step explanation:
We know that Mia has 4 horses and 11 apples
She gives each horse the same number of apples, such that she uses the maximum number of apples that she can.
If she has 4 horses and she gives the same amount to each horse (let's say that this amount is N apples to each horse)
Then she uses a total of 4*N apples.
Then if N = 1, she needs 4*1 = 4 apples.
if N = 2, she needs 4*2 = 8 apples.
if N = 3, she needs 4*3 = 12 apples.
But she has only 11 apples, so she can not give 3 apples to each horse.
Then the maximum number of apples that she can give to each horse is N = 2, 2 apples to each horse.
Now, we know that she has 11 apples in total, and she gives 2 to each of the 4 horses, then she gives:
4*2 = 8 apples.
The number of apples that are left are:
11 - 8 = 3
There are 3 apples left.
Write an explicit formula for a-n, then term of the sequence 36, 39, 42,....
Answer:
a^n = 36 + (n-1) * 3
Step-by-step explanation:
Explicit formula for arithmetic sequences: a^n = a^1 + (n-1) * d
In this case, a^1 = 36 and common difference/d = 3
So...
a^n = 36 + (n-1) * 3 is the explicit formula for this sequence.
If you answer this you will get brainliest
Answer:
um i don't understand im sorry
what is equal to 45a-10b
Answer:
45b - 10a
Step-by-step explanation:
Answer:
5(9a-2b)
Step-by-step explanation:
This is a polynomial and you have to factor it.
GCF of 45a and 10b is 5
5(9a-2b)
Branliest would be Appreciated
5x +9 = 65 :solve
Please help me
Answer:
11 1/5
Step-by-step explanation:
subtract 9 from both sides
5x = 56
divide both sides by 5
x = 56/5
11 1/5
Answer:
11.2 because 65 - 9 = 56 and 56 divided by 5 is 11.2
A school is purchasing graphing calculators for use in math classrooms. The graph shows a relationship between the number of graphing calculators purchased and the total cost.
The constant of proportionality is 120. True or false
If a graph is a straight line, it shows a proportional relationship. True or false
Any graph that passes through origin represents a proportional relationship. True or false.
A graph must be a straight line and go through the point (0,0) in order to represent a proportional relationship. True or false.
PLEASE HELP!!
Answer:
False; false; true
Step-by-step explanation:
Find the area of these shapes!! Will mark brainliest for right answer
Answer:
for first one
total area =l×b+1/2×b×h=6×4+1/2×2×6=30cm²
Step-by-step explanation:
for second one
total area =l×b+1/2×b×h=7×5+1/2×7×2=35+7=42m²
Which Heinz Ketchup offer is the better deal? (Assume the price stays proportional and the Ketchup is
Identical.) Show ALL work and labels, and make sure you include a "because." in your answer.
Deal A
38 oz for $2.98
Deal B
114 oz for $6.48
What is the slope of the line that passes through the points (0,-8) and (12, 6)?
round to the one decimal place
can someone please help with number 9??? i need it for an important grade
Answer:
C$492 is sitting in the bank with it being a positive number
$3 dollars are being charged per month.
that batch calls for 5 cups of flour and 4 teaspoons of vanilla if i use 6 teaspoons of vanilla how many cups will i need
please help me asap thank you !!
Answer:
x = 3
Step-by-step explanation:
Measure of a triangle is 180° degree.
.·. 46 + 105 + 6x + 11 = 180
.·. 162+6x=180
.·. 6x=180-162
.·. 6x= 18
.·. x= 18/6
.·. x= 3
You randomly choose a tile. Without replacing the first tile, you choose a second tile. Find the probability of the compound event. Write your answer as a fraction or percent rounded to the nearest tenth.The probability of choosing an odd number and then a 20
Answer:
P odd number, then 20) = 1 /14
Step-by-step explanation:
P( odd number) = number of odd numbers/ total
number of odd numbers = 3
total = 7
P( odd number) = 3/7
We keep the tile so that there are only 6 tiles left
P (20) = number of 20/ total
= 1/6
We multiply the probabilities together
P odd number, then 20) = 3/7 * 1/6 = 3/42 = 1 /14
Sally has 21 books Sam has 24 times more books than sally how many books does Sam have
A zookeeper is monitoring the supply of grain and hay that she has to feed the
animals for the week. She currently has eight pounds of hay. One pound of hay
feeds the animals for three days. The grain that she has to feed the animals is
shown in the graph below. Given the rate at which the zookeeper is giving the
animals hay and grain, on which day will she have the same amount of grain and hay remaining?
Answer: Day 6
Step-by-step explanation: Every 3 days 1 pound of hay is used every day 1 pound of grain is used. There are 10 pounds of grain and 8 pounds of hay. On the 6th day there are 6 pounds of hay left and 6 pounds of grain left.
The Stock Market Nadia is a stockbroker. She earns 11% commission each week. Last week, she
sold $5,300 worth of stocks. How much did she make last week in commission? If she averages that
same amount each week, how much did she make in commission in 2011?
Last week, she made $
in commission.
Answer:
she made $583 commission last week
she made $30313
Step-by-step explanation:
5300 * .11=583
583 * 52 weeks =30316
How long would it take the snail to crawl 65 inches?
A) 65 Minutes
B) 60 Minutes
C) 6 Minutes
D) 6.5 Minutes
Answer:
C
Step-by-step explanation:
6 minutes is the most reasonable time to crawl 65 inches.