Answers
Answer:
31
Method:
X + 21 = 52 is the same as 52 - 21 = x. 52 - 21 = 31 so x = 31
In algebraic equations, you always want to isolate the variable (x) so To do that you would subtract 21 from both sides, and then you would do 52 - 21 = 32
x + 21 = 52
-21 = -21
x = 31
Related Questions
What is the answer to: y=-2x-5,4x+3y=15 using substitution to solve it..??
Answers
Answer:
Step-by-step explanation:
Plug the first equation into the second
[tex]4x+3(-2x-5)=15\\4x-6x-15=15\\-2x=30\\x=-15[/tex]
y=-2(-15)-5
=30-5
=25
4. Jake wants to make a garden with a border in the corner of his yard. He has lumber in several different lengths. Which three lengths could NOT be used to make a right triangle to fit into the corner of his yard? O 5 ft., 12 ft., 13 ft. O 9 ft., 12 ft., 15 ft. O 16 ft., 12 ft., 20 ft. 0 0 O 10 ft., 12 ft., 15 ft.
Answers
Answer:
10 ft., 12 ft., 15 ft.Step-by-step explanation:
Note that for a right triangle, the sum of the square of the hypotenuse is equal to the sum of square of the opposite and the adjacent.
Note that the hypotenuse is the longest side
Checking the given sides 10 ft., 12 ft., 15 ft.
Hypotenuse = 15ft (longest side)
Take the square of 15
15² = 225
Take the sum of square of other two sides
12²+10²
= 144 + 100
= 244
Since 225≠244, hence the three length could not be used to make a right triangle to fit into the corner of his yard
5. There are three different colored M&Ms
red, green, and white. The probability of
selecting a red M&M is 2/5 and the probability
of selecting a green M&M is 1/4 so what is the
probability of selecting a white M&M?
Answers
The total number of red m&m out of all m&m is 2/5.
The total number of green m&m out of all m&m is 1/4.
if we add up 2/5 and 1/4, we can use that information to subtract from the total number of m&m to find the rest of m&m, which would be a total number of white m&m!
2/5 + 1/4 = ?
Common denominator. We will choose 20, since it is the lowest common multiple! (this means that 20/20 is the total number of all m&m, by the way. )
[tex]\frac{2(4)}{5(4)}[/tex] + [tex]\frac{1(5)}{4(5)}[/tex] = 8/20 + 5/20 = a
20/20 - a = ?
ANSWER: 7/20
The probability of selecting a white-colored M&M is 7/20.
The total number of red m&m out of all m&m is 2/5.
The total number of green m&m out of all m&m is 1/4.
if we add up 2/5 and 1/4, we can use that information to subtract from the total number of m&m to find the rest of m&m, which would be a total number of white m&m
2/5 + 1/4 = ?
Common denominator. We will choose 20, since it is the lowest common multiple (this means that 20/20 is the total number of all m&m, by the way. )
What is the probability?Probability means possibility. It is a branch of mathematics that deals with the occurrence of a random event. The value is expressed from zero to one.
8/10 +5/20 = 8/20 + 5/20 = a
20/20 - a = ?
Therefore the probability of selecting a white M&M is 7/20.
To learn more about probability visit:
https://brainly.com/question/24756209
#SPJ2
The magnitude and direction of two vectors are shown in the diagram. What is the magnitude of their sum?
Answers
Answer:
2√5
Step-by-step explanation:
Using the formula for calculating resultant
R = √Fx + Fy
\sum Fx = -2sin 45 + 4 cos 45
\sum Fx = 2cos45
\sum Fx = 2(1/√2)
\sum Fx = 2/√2
Similarly;
\sum Fy = 2 cos 45 + 4 sin45
\sum Fx = 2(1/√2) + 4(1/√2)
\sum Fx = 6/√2
Magnitude = √(2/√2)²+6/√2)²
Magnitude = √4/2 + 36/2
Magnitude = √2+18
Magnitude = √20
Magnitude = 2√5
Hence the magnitude of their sum is 2√5
Answer:
2√5
Step-by-step explanation:
A rectangle has a width of 8 units and a
length of 10 units. What is the length of the
diagonal of this rectangle
Answers
Answer:
12.8 units
Step-by-step explanation:
Adding a diagonal makes it into 2 of the same right-angled triangles.
In right angled triangles, you can use Pythagoras' therorem which says that a^2+b^2=c^2 where a and b are the shorter sides and c is the diagonal.
This means that 8^2+10^2=diagonal^2=64+100=164
The diagonal is then the square root of 164 which equals 12.806248...
Which of these numbers lines is the X-axis?
Answers
Answer:
the one going this way -------------------------- not up and down
Step-by-step explanation:
Answer:
Step-by-step explanation:
the one on the right
I need help solving this practice question solve for x
Answers
9/12 = 0.75
6/8 = 0.75
will give brainly
(11x^11) (4x^4)
Answers
Answer:
The answer is 44x^15
Step-by-step explanation:
Simplify the expression.
Hoped this helped!
brainly, please?
what is the length of line segment FH?
Answers
Answer:
19 is the answer
Step-by-step explanation:
15+4=19
Answer:
Hi how are you doing today Jasmine
Paula opens a bank account that earns 6% interest. Her initial deposit is $400.
How much money does Paula have after 15 years?
Answers
Answer:
$461,168.60Step-by-step explanation
Turn the percentage into a decimal Take much much she has in the bankput () around 1+.6y=400(1+.6)^15 and calculate the problem and round to the nearest 100this saving money to buy a game. So far he has saved $36, which is three-fourths of the total cost of the game. How much does the game cost?
PLS HELP ME IM GIVING 10 POINTS FOR THIS!
Answers
which statement are correct for evaluting this expression
Answers
let me know if it doesn’t work
What is 5/3+2/4= ????
Answers
Answer:
5/3 x 4/4
2/4x 3/3
20+6/12
26/12
Step-by-step explanation:
Answer:
the answer is
5/3+2/4=7/4
Write the expression in fewer terms: 3•15+4•15-5•15
Answers
Answer:
The answer is 3525
Answer:
By fewer terms, I assume it means you can reduce each multiplication of 2 terms down to 1. Therefore I would say:
45+60-75.
otherwise, maybe it means give the full 1 answer of:
30.
I used PEMDAS. You simplify the multiplication terms first, then you do the addition and subtraction.
Write an expression, in its simplest form, for the volume of this cuboid:
Answers
Answer:
volume of cuboid=l×b×h
=2x+7+x+5
Answer:
volume of cuboid= l×b×h=(2x+7)x×5=5x×2x+5x×7
=10x²+35x
2(x+3)=x-4
help please
Answers
Answer:
Step-by-step explanation:
Distribute
2x+6 = x-4
Subtract 6 on both sides
2x = x-10
Subtract x on both sides
x = -10
2(x+3)=x-4 perform indicated multiplication on left side
2x+6=x-4 subtract d from both sides
x+6=-4 subtract 6 from both sides
x=-10
What is the area of △JKL in square units? KJL is a triangle. The angle J is 94 degree and the angle L is 26 degree. Side JK is 24 and JL is 41.
Answers
Answer:
426.07 square units
Step-by-step explanation:
Recall that for a triangle whose angles are A,B,C with corresponding sides a, b, c, the area G of the triangle may be computed as
G = 1/2 ab Sin C
or
G = 1/2 bc Sin A
or
G = 1/2 ac Sin B
Going by this, recall that the sum of angles in a triangle is 180 hence
94 + 26 + K = 180
120 + K = 180
Subtract 120 from both sides
K = 180 - 120
K = 60 degrees
Given that JK = 24 and JL = 41
G = 1/2 * 24 * 41 Sin 60
= 426.07 square units
Plz help!
According to the graph, what are the domain and range of f(x)
Answers
Answer:
Domain: [0, 40]
Range: [0, 20]
General Formulas and Concepts:
Algebra I
Domain is the set of x-values that can be inputted into function f(x)Range is the set of y-values that are outputted by function f(x)Interval Notation - [a, b] denotes inclusive, (a, b) denotes exclusiveStep-by-step explanation:
According to the graph, we see that our x-values span from 0 to 40. Since both are closed dots, they are included in the domain:
Interval Notation [0, 40]
Inequality Notation 0 ≤ x ≤ 40
According to the graph, we see that our y-values span from 0 to 20. Since both are closed dots, they are included in the range:
Interval Notation [0, 20]
Inequality Notation 0 ≤ y ≤ 20
you will have BRAINLYEST
Which net represents this solid figure?
Answers
Answer:
D
Step-by-step explanation:
I need help due tmmr
Answers
Answer: C.
Step-by-step explanation:
The answer is C. i believe
You have to subtract 2 by 7x = 33
I hope this helps!
Brandon mows his lawn once every 5 days. Thomas mows his lawn once every 3 days. If they are all mowing the lawn today, in how many days will they be mowing their lawns together again?
A. 3
B. 5
C. 8
D. 15
Answers
Answer:
D. 15
Step-by-step explanation:
Day Thomas Brandon
1 T B
2
3
4 T
5
6 B
7 T
8
9
10 T
11 B
12
13 T
14
15
16 T B
17
18
19 T
20
21 B
The next time they both mow their lawns on the same day is on day 16, which is 15 days from today.
Answer: D. 15
New York and Chicago are 4 inches apart on a map if the scale on a map is 1/2 inch equal 100 miles how many miles is it from New York to Chicago
Answers
1 inch equal 200 miles
4.-2+ (-8)
I was wondering what’s the answer
Answers
Answer:
-10
Step-by-step explanation:
Answer:
4.−10..?
Step-by-step explanation:
Use Cymath.com for your math equations so you don't have to waste points on here!
Subtract the cube root of the product of x and 3y from the square of the sum of a and b.
Answers
Answer:
a^2 + b^2 + 2ab - (3xy)^1/3
Step-by-step explanation:
Here we want to make a subtraction
Cube root of the product of x and 3y
x * 3y = 3xy
Cube root of this;
(3xy)^1/3
The sum of a and b is (a + b)
Square of this sum;
(a + b)^2 = a^2 + 2ab + b^2
Now, subtract the cube root
we have;
a^2 + b^2 + 2ab - (3xy)^1/3
PLS HELP I REALLY NEED IT RNNNNNN 20 POINTSSS
Which function matches the mapping shown?
A) f(x) = 2x
B) f(x) = 4x
C) f(x) = x4
D) f(x) = x + 4
Answers
Answer:
B.f(x)=4x
Step-by-step explanation:
Multiply x value by 4
two step equation -9 + 2x = .-31
Answers
Answer:
Step-by-step explanation:
Add 9 to both sides
2x = -22
Divide both sides by 2
x = -11
One angle of an isosceles triangle measures 26°. Which other angles could be in that isosceles triangle?
Answers
Answer:
There are two answers, either of which would work
26°, 26° and 128°26°, 77° and 77°Method:
An isosceles triangle has 2 of the same sides so there are two possible answers:
1) 26° is one of the angles which is the same as another. 26° × 2 = 52° and since there are 180° in a triangle the other angle is 180° - 52° which is 128°. This would make the angles 26°, 26° and 128°
2) 26° is not one of the angles which is the same as another. Since there are 180° in a triangle, the other angles would both be 2 ÷ (180° - 26°) which is 77°. This would make the angless 26°, 77° and 77°
someone please help me
Answers
Answer:
104 I think
Step-by-step explanation:
8 x 14 divided by 2 is 56 so 6 x 8 = 48 and 48 + 56 = 104
Answer:
The volume of this triangular prism is equal to 336 [tex]feet^{3}[/tex]
Step-by-step explanation:
In order to solve this question, we need to know that the volume of a triangular prisim is equal to the area of the triangular base time the distance between the two triangular bases. And so we get...
[tex]V = (\frac{bh}{2})(d) = (\frac{(8)(14)}{2})(6) = (56)(6) = 336[/tex]
Therefore the area of this triangular prism is equal to 336 [tex]feet^{3}[/tex]
At Pete's pizza, the cost of a 1 topping pizza is $17.35 and the cost of a 3 topping pizza is $21.05.
Assuming the cost of a pizza follows a linear model, write an equation that represents C, the cost of any pizza with t,toppings.
Answers
Answer:
3
Step-by-step explanation:
17.35 * 3
Lol helpppppppp meee plsssss!!!!
Answers
Answer:
83.3%
Step-by-step explanation:
5/6~=0.833
which is 83.3%