Answer:
27
Step-by-step explanation:
Multiply 90 by 0.3 and you have your answer
Kelly is 9 years old .In two years Kelly will be 1/3 of his mothers age now .What is his mother age
Answer: 31
Step-by-step explanation:
9 + 2 = 11. 11 is how old Kelly is in 2 years.
1/3 of 33 is 11. Kelly's mother is 33 in two years, meaning two years ago, Kelly's Mother is 31.
Here is the full equation. K = Kelly. M = Kellys Mom
9k = m
2k + 9k = m + 2m
11k = m + 2
11k = [tex]\frac{m}{3}[/tex]
M + 2 = 33
-2 -2
m = 31
x +y=5, 2x-3y=4
3x+4y=10, 2x-2y=2
by Multiplication method
correct answer will mark as brainiest
Explain how you know that √10 is between 3 and 4? what would your estimate of √10 be??
Dont try and say the answer in a mf file i have to download lol
Answer:
Step-by-step explanation:
Welllllll.....
If you take the square root of 9, it's 3
if you take the square root if 16, it's 4
I would guess it to be about 3.2
Answer:
Step-by-step explanation:
Lily , we know that [tex]3^{2}[/tex] =9 and [tex]4^{2}[/tex] = 16 so we know that [tex]x^{2}[/tex] = 10 , where 10 is an answer to x squared, then X lies between 3 and 4 , see?
Select all correct ways of factoring –3x – 9.
Answer:
Some possible expressions, since there's no answer choices provided:
-3(x + 3)
3(-x - 3)
Step-by-step explanation:
Expression 1:
This uses a GCF of -3, since -3x and -9 are divisible by this. Let's divide -3x and -9 by this first:
-3x / -3 = x
-9 / -3 = 3
So now, we can add these terms and multiply them by -3 to get our answer:
-3(x + 3)
And just to check, we can expand it:
-3x + -3(3) = -3x - 9
Expression 2:
This uses a GCF of 3, like the last one but it's negative. -3x and -9 are also divisible by this. Let's divide both terms by this GCF first:
-3x / 3 = -x
-9 / 3 = -3
Now, we can add these terms and multiply them by -3 to get our final answer:
3(-x - 3)
To check, once again:
-3x + 3(-3) = -3x - 9
A city has a population of 280,000 people. Suppose that each year the population grows by 8.25%. What will the population be
after 14 years?
If 1/4 of a pound costs $3, how
many pounds can you buy for $1?
Answer:
1/12
Step-by-step explanation:
1/4 divided by 3
Answer:
I think you can buy 1/3 for one dollar
HOW DO YOU SOLVE THESE DIAMOND PATTERNS!!!
Answer:
Cut them in half and do this
Step-by-step explanation:
1/2(?)(?)
Answer: The pattern of the numbers is constant: On the left and right side of the diamond, you have two numbers, sometimes called factors;In the top part you can find their product; and In the bottom section - their sum
Step-by-step explanation:
the sum of -4 and a number is equal to -48 what is the number
a. -12
b. -44
c. 12
d. -52
Answer:
-44(b)
Step-by-step explanation:
-4+x=-48
add 4 to both sides
x=-44
(PLEASE HELP)
What is the area of the shaded region?
Answer:
12 cm squared
Step-by-step explanation:
4x4=16
2x2=4
16-4=12
what is 3/4 x 7?????
Answer:
The answer is 5 1/4
It’s simple if you need more help just ask
A rectangular portrait is 4 feet wide and 4 feet high. It costs $9.00 per foot to put a gold frame around the portrait. How much will the frame cost?
Answer:
$144
Step-by-step explanation:
perimeter = 4 + 4 + 4 + 4 = 16 feet
16 x 9 = $144
Hey can you help me fast!!
Answer:
I believe the answer would be -4 1/2.
find angle that is marked by question mark
Answer:
? = 50°
Step-by-step explanation:
? = 180° - 130° = 50°
Determine which pair of points has a negative slope.
(6,9), (5, 7)
(-9, -2), (3,6)
(-8, 1), (8, -8)
(2, -8), (-1, -9)
Answer:
(–8, 1), (8, –8)
Step-by-step explanation:
Answer:
(-8, 1), (8, -8) has a negative slope
Step-by-step explanation:
1). y2 - y1 / x2 - x1
7 - 9 / 5 - 6
= 2
2). y2 - y1 / x2 - x1
6 - (-2) / 3 - (-9)
= 2/3
3). y2 - y1 / x2 - x1
-8 - 1 / 8 - (-8)
-9/16
4). y2 - y1 / x2 - x1
-9 - (-8) / -1 - 2
= 1/3
ILL MARK BRAINLIEST TO FIRST PERSON TO ANSWER CORRECTLY
Which One Doesn't Belong? Determine which equation from the four below doesn't belong and justify your answer. Could there be a different answer?
Answer:
what on the planet is the question
I need help to identify them like for example SAS,SSS,ASA etc.
Answer:
AASRHSASAStep-by-step explanation:
AAS means 2 angles and a non-included side are congruent.RHS means the hypotenuse and the sides of the right-angled triangle are congruent (only applies to right-angled triangles).ASA means 2 angles and that one side between them are congruent.The equation t= 6 + wrepresents the relationship between the number of weeks and the total amount saved.
TRUE OR FALSE
AND WHY
Answer:
hello my followers and my
Solve for i
3 (.5i - 6 ) = 12
Answer:
2
Step-by-step explanation:
15i-18=12
15i= 12+18
15i= 30
I= 30/15= 2
The volume of a cylinder is 720π cm3. The height of the cylinder is 20 cm. What is the radius of the cylinder?
Answer:
Radius = 3.38 cm
Step-by-step explanation:
Here's your solution
=> The volume of cylinder = 720π cm^3
=> The height of cylinder = 20 cm
=> Radius = ?
=> Formula of volume of cylinder = πr^2h
=> 22/7 * r^2 * 20 = 720π cm^3
=> r^2 = (720*7)/20*22
=> r^2 = 11.45
=> r = √11.45
=> r = 3.38 cm
hope it helps
solve the equation-4(x+10)-6=-3(x-2)
Answer: x= -52
Step-by-step explanation:
help brainiest to whoever right
can you please help with this?:)
Answer:
The two lines are neither parallel nor perpendicular
Step-by-step explanation:
Generally, we have the equation of a straight line as;
y = mx + b
where m is the slope of the line and b is the y intercept of the line
Now, we express the two given equations in this form
We have this as;
7y = x + 5
y = 1/7(x) + 5/7
For the second equation, we have;
y = 7x - 4; this is already expressed
the slope of the first line is 1/7
the slope of the second line is 7
when two lines are parallel, their slopes are equal
when two lines are perpendicular, the product of their slopes is -1
As we can see, both cases does not occur in this system of equations
So, we can conclude that both lines are neither parallel nor perpendicular
17 and 18 please no links
Answer:
17) 135 degrees
Step-by-step explanation:
An octagon contains six triangle, or 1080 degrees, meaning each angle is 135 degrees.
Step-by-step explanation:
1. an octagon contain 6 triangles or 1080 degrees this means with 8 angles each angle is 135 degrees
Solve the equation.
3x + 2(4x − 6) = 8x + 1
What is the value for x?
Please enter fractional values in the form ‘a/b’. For example, an answer of 3/4 will be entered as 3/4.
x =
Answer:
13/3
Step-by-step explanation:
Try it
.
What is the perimeter of this tile?
3 in.
3 in.
Answer:
I think it's 12
Step-by-step explanation:
In ΔRST, s = 620 cm, r = 210 cm and ∠R=17°. Find all possible values of ∠S, to the nearest 10th of a degree.
Answer:
1843:6754.9709254546.,657675
Step-by-step explanation:
The measure of the angle of the triangle is calculated by the law of sines and m∠S = 59.7°
What is the law of sines?The relationship between a triangle's sides and angles is provided by the Law of Sines. Trigonometry's law of sines can be expressed as a/sinA = b/sinB = c/sinC, where a, b, and c are the lengths of the triangle's sides, and A, B, and C are the triangle's respective opposite angles.
Law of Sines :
a / sin A = b / sin B = c / sin C
Given data ,
Let the triangle be represented as ΔRST
Now , the measure of s = 620 cm
The measure of side r = 210 cm
And , the measure of angle m∠R = 17°
From the law of sines , we get
a / sin A = b / sin B
On simplifying , we get
sin ( 17 )° / 210 = sin ( S ) / 620
Multiply by 620 on both sides , we get
sin ( S ) = ( 620 / 210 ) x 0.2923717
On further simplification , we get
sin S = 0.86319265203
Taking inverse on both sides , we get
S = sin⁻¹ ( 0.86319265203 )
S = 59.68°
S = 59.7°
Therefore , the value of S is 59.7°
Hence , the measure of angle m∠S = 59.7°
To learn more about law of sines click :
https://brainly.com/question/13098194
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Can someone pleaseeee help and if you’re correct i’ll give brainliest
A girl throws a paper airplane from her treehouse. The height of the plane is a function of time and can be modeled by the equation ℎ()=25+2.5−122. Height is measured in feet and time is measured in seconds.
h(0) show the initial height of the plane, that is 25 feet.
The given equation is h(t)=25+2.5t-1/2 t².
Here, h(0)=25+2.5(0)-1/2 (0)²
h(0)=25
This shows the initial height is 25 feet.
Therefore, h(0) show the initial height of the plane, that is 25 feet.
To learn more about the function visit:
https://brainly.com/question/28303908.
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"Your question is incomplete, probably the complete question/missing part is:"
A girl throws a paper airplane from her treehouse. The height of the plane is a function of time and can be modeled by the equation h(t)=25+2.5t-1/2 t². Height is measured in feet and time is measured in seconds.
Evaluate h(0) and explain what this value means in this situation.
Which transformation(s) preserve the size & shape of the pre-image?
**SELECT ALL THAT APPLY** *
Translation
Rotation
Reflection
None
Answer:
rotation and reflection
PLZ HELPPPP
What is the height of a cone that has a volume of 90m³ and has a radius of 3.5 m?
The answer is 7.02.
This is because pi×r^2×h/3
h=3 90/3.14×3.5^2=7.01581m
Answer:
h = 7.02 m
Step-by-step explanation:
Volume of a cone = ⅓ × πr²h
h = 3 × V/πr²
= 3 × 90/3.14×(3.5)²
≈ 7.015.. m
≈ 7.02 m