set up an equation:
2(x+20) = 5x - 2
Simplify:
2x +40 = 5x - 2
Add 2 to both sides:
2x + 42 = 5x
Subtract 2x from both sides:
42 = 3x
Divide both sides by 3:
x = 42/3 = 14
The number is 14
Answer:
The answer is 14
Step-by-step explanation:
x²+xy+y²
help me simplify it
Answer:
they didn't sum on yet
What is the 6th multiple of 13?? I have no idea and I’m in set 1 rip
Answer:
78
Step-by-step explanation:
Write out the 13 times tables: 13, 26, 39, 52, 65, 78, ... 78 is the 6th number.
You can also do 13 × 6 which is 78.
Hope this helps!
Answer:
78
Step-by-step explanation:
Find the missing side of each triangle. Round your answers to the nearest tenth if necessary.
(Please show your work)
Answer:
Below
Step-by-step explanation:
Use reverse pythagorean theorem
c^2 = a^2 + b^2
You can either rearrange the equations, or plug the values in an solve for b :
b^2 = c^2 - a^2
= 15.1^2 + 9.7^2
= 1339.2
Square root this number
= 11.5723809
x = 11.6 in
Hope this helps! Best of luck <3
___________
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[tex]\boxed{ \rm{answer \: by \: { \boxed{ \rm{☆HayabusaBrainly}}}}}[/tex]
Step by step :x² = (15,1)² - (9,7)²
x² = 228,01 - 94,09
x² = 133,92
x = 11,6in✔
The entry price to the museum is $18.
This price is increased by 28%.
Find the increased entry price.
[tex]\sqrt4x -\sqrt9x\\\\[/tex]
Answer:
Step-by-step explanation:
The price of a flash drive that regularly sells for $16 is increased by 15%. Write two different expressions to find the new price.
Two expressions please! I can't figure any out on my own... :(
Answer:
16 × .15 and 16 × 15/100
Step-by-step explanation:
...
Alice is inventorying two different warehouses. In the first warehouse, she determines that there are 4.6X10 to the third power of boxes. In the second warehouse, she determines that there are 5X10 to the fourth power of boxes. What is the combined number of boxes in both warehouses?
PLEASE HELP!!!!
Answer:4.6 × 30= 138
5 × 40= 200
Step-by-step explanation:
ALL FELLOW PEOPLE I NEED HELP ASAP ! WILL MARK BRAINLIEST!!EXTRA POINTS !!!!
Answer:
3) parallel
4) y = -1/2x +5
Step-by-step explanation:
3) Two equations are parallel if they have the same slope
The equations are written in y=mx+b (standard) form, where m is the slope. Both equations have a slope of 5/4
4) The two points that are plotted are (0,5) and (4,3).
We can find the slope by using the slope equation
(3) - (5) / (4) - (0) = -2/4 = -1/2
then we can plug it in both points to find b
-1/2(4) = -2
-2 + b = 3
b = 3
ndjsjdjdjdjdjjxndjxjusnsu j
Answer:
B
Step-by-step explanation:
bcoz sin and cos 45 have 1/root2
Answer:
B. 45°
Step-by-step explanation:
sin(45) = √2/2
cos(45) = √2/2
HELP ME I WILL GIVE YOU BRAINLIEST AND A 5.0 REVIEW
Power: An _________________ that has a base and an exponent.
Answer:
Base
Step-by-step explanation:
A power is the product of multiplying a number by itself. Usually, a power is represented with a base number and an exponent. The base number tells what number is being multiplied. The exponent, a small number written above and to the right of the base number, tells how many times the base number is being multiplied.
order the numbers from least to greatest
Answer:
can you give me points ??
Holly's soccer team is trying to raise $2,100 to travel to a tournament in Florida, so they decided to host a pancake breakfast. Each person must pay $30 for the breakfast. How many people need to attend their breakfast in order to raise $2,100?
Answer:
70 people
Step-by-step explanation:
30 dollars for each person, so you divide 2,100 by 30 to find how many people.
2,100/30=70
Answer:
70
Step-by-step explanation:
Target=$2,100
Money Earned from a single person=$30
Number of persons=$2,100 /$30 = 70
Thus, 70 people need to attend their breakfast in order to raise $2,100
Can someone pls help me
Using Pythagorean theorem
[tex]\\ \sf\longmapsto H^2=P^2+B^2[/tex]
[tex]\\ \sf\longmapsto H^2=5^2+12^2[/tex]
[tex]\\ \sf\longmapsto H^2=25+144[/tex]
[tex]\\ \sf\longmapsto H^2=169[/tex]
[tex]\\ \sf\longmapsto H=13[/tex]
What should be done first to evaluate the expression?9 - 4 ÷ 5 + 3 × 6
ANSWER:
24
STEP- BY-STEP-EXPLANATION:
•Group into bodmas
•9-4=5(5+3×6)
5÷5+3×6
1+3×6
4×6=24
5. The length of a red rectangle is 12 cm more than its width, w. A blue
rectangle, which is 4 cm wider and 2 cm shorter than the red one, has
perimeter 72 cm. Make a sketch of the rectangles expressing all dimensions in
terms of w. Then find the dimensions of the red rectangle.
Answer:
For the red triangle the width is 9 cm and the length is 24 cm. For the blue triangle, the width is 14 cm and the length is 22 cm.
Step-by-step explanation:
Red triangle: width is 9 cm, length is 24 cm, blue one width is 14 cm and the length is 22 cm. hope this helps. did this quickly! <3
Answer:
Step 1. Perimeter P means adding up all 4 sides of a rectangle.
Step 2. Let w be the width of the red rectangle
Step 3. Let w+15 be the length of the red rectangle
Step 4. Let w+5 be the width of the blue rectangle
Step 5. Let w+15-2=w+13 be the length of the blue rectangle
Step 6. Then for the blue rectangle, P=w+5+w+5+w+13+w+13=4w+36=72
Step 7. Solving 4w+36=72
Subtract 36 from both sides of the equation
4w=36
Divide by 4 to both sides of the equation
ANSWER: For the red triangle the width is 9 cm and the length is 24 cm. For the blue triangle, the width is 14 cm and the length is 22 cm.
Given the definitions of f(x)f(x) and g(x)g(x) below, find the value of (f\circ g)(2).(f∘g)(2). f(x)= f(x)= \,\,-5x-11 −5x−11 g(x)= g(x)= \,\,2x^2+2x-5 2x 2 +2x−5
Somebody please help me !!
1. (-1, 1
2. (-2,-2)
3. (-3, 1)
hope this helps!!
If a triangle has an area of 192 mm2, and the
height measures 12 mm, what is the measure
of the base?
Answer:32mm
Step-by-step explanation:
area of triangle = 1/2 *base * height
192mm2 = 1/2 *b* 12mm
192 =6b
base=192/6
base= 32mm
HELP IM IN THE MIDDLE OF A TEST!!
Choose the correct slope of the line that passes through the points (1, -3) and (3, -5).
A. -1
B. 1
C. 0
D. 1/2
Please help me with this. Thanks!
Answer:
the plane is descending at a rate of 8,300 feet per minute
Step-by-step explanation:
31,275 - 22,975 = 9,300
BRAINLIEST PLEASE!
Can someone help me with part b?
Step-by-step explanation:
the average rate of change of a function f in an interval [x-low, x-high] is
(f(x-high) - f(x-low)) / (x-high - x-low)
the year 2000 means t = 2000-1980 = 20
the year 2015 means t = 2015-1980 = 35
so, we have
(A(35) - A(20)) / (35 - 20)
((-0.6(35)² + 37.2×35 + 243) - (-0.6(20)² + 37.2×20 + 243)) / 15
((-735 + 1302 + 243) - (-240 + 744 + 243)) / 15
(810 - 747) / 15 = 63/15 = 4.2
the average change rate between 2000 and 2015 is 4.2.
that means that the use of nuclear energy in the USA increased by 4.2 billions of kilowatt hours per year during that period.
factor completely p^3 -27z^6
Answer:
gb
Step-by-step explanation:
uhygt
Which of the following quadrilaterals must have at least one pair of parallel sides?
Check all that apply.
Rectangle, Square, Trapezoid, Parallelogram, Kite, Rhombus.
Explain your answer.
The quadrilaterals that must have at least one pair of parallel sides include all of the following except trapezoid. This implies Rectangle, Square, Parallelogram, Kite, Rhombus
What is a quadrilateral?A quadrilateral is a four-sided polygon with four edges and four corners in geometry. The word comes from the Latin words quadri, a variant of four, and latus, which means "side." A quadrilateral is a closed shape that has four sides, four vertices, and four angles. It's made by connecting four non-collinear points. The sum of quadrilateral interior angles is always 360 degrees.
A rectangle is a quadrilateral with four right angles in Euclidean plane geometry. It can also be defined as an equiangular quadrilateral because all of its angles are equal; or a parallelogram with a right angle. A square is a rectangle with four equal-length sides.
A parallelogram is a simple quadrilateral with two pairs of parallel sides in Euclidean geometry. A parallelogram's opposite or facing sides are equal in length, and its opposite angles are equal in size.
Learn more about parallelogram on:
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Please help.
Point M is the mid-point of PQ. The coordinates of P and M are given below.
M (5, -2) and P (11, -10)
Based on the information, what is the coordinates of Q?
Answer:
(-1,-6)
Step-by-step explanation:
(-1,-6)
Multiply coordinates of mid point by 2
take away from point P
Suppose f(x) = 3x*2 - 2x
Answer:
x=0
Step-by-step explanation:
0=6x-2x
0=4x
4x=0
and the answer is x=0
please help!! the blank ones are the answer you can choose which one is correct.
Answer:
25 percent the answer is 25 percent I'm pretty sure. cause it's just 112.5/450
multiply
4/7 x 4 3/8 x 5/6
Answer:
all of them together or eahc seperate
Step-by-step explanation:
The equation x²– 8x – 5 = 0 can be transformed into the equation (x - p)² = q, where p and q are real numbers. What are the values of p and q?
The form (x - p)^2 = q is the form that completing the square will leave us with.
---Add 5 to both sides
x^2 - 8x = 5
---Divide the b term by 2, and square it. Then, add that number to both sides.
-8/2 = -4
(-4)^2 = 16
x^2 - 8x + 16 = 5 + 16
x^2 - 8x + 16 = 21
---Factor!
(x - 4)^2 = 21
p = 4
q = 21
Hope this helps!! :)
P and q have values of 4 and 21, respectively.
What is an expression?In mathematics, expression is defined as the relationship of numbers, variables, and functions using mathematical signs such as addition, subtraction, multiplication, and division.
The form (x - p)²= q is what we get when we complete the square.
Adding the number 5 on both sides,
x² - 8x = 5
After dividing by two, square the b term. Then divide both sides by that figure.
-8/2 = -4
(-4)² = 16
x² - 8x + 16 = 5 + 16
x² - 8x + 16 = 21
Solve the factors,
(x - 4)² = 21
p = 4
q = 21
As a result, the values of p and q are 4 and 21, respectively.
To know more about an expression follow
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please help me its due in 3 mins
Answer:
s = 19°Step-by-step explanation:
The angles that are directly opposite to each other are known as opposite angles. They are also termed as vertical angles or vertically opposite angles and are equal to each other.
so
106 = 6s - 8
106 + 8 = 6s
114 = 6s
s = 114 : 6
s = 19°
-----------
check
6 * 19 - 8 =
106°
the answer is good
Hadley paddled a canoe 2/3 mile in 1/4 hour. How fast did Hadley paddle, in miles per hour?
Answer:
to find the whole ratio from a part use a reciprocal (i.e for this one 1/4, it's 4)
Then wee multiply it to 2/3
2/3 x 4 = 8/3 = 2.666666666 = 2.67
8/3 or 2.67 is the answer
Step-by-step explanation: