Answers
Answer:
Angle DCB is Equal to 78
Step-by-step explanation:
4x+2 + 3x+3 =180
7x +5=180
7x=175
x=25.
Then put the x in the 3x+3
3(25) +3 = 78
so DCB = 78
Related Questions
Solve for x!!! Please show all work!!!!!!!
Answers
10y + x2, x is 6 y is 4
Answers
10•4 = 40
6•2=12
40+12=52
Therefore 10•4 + 6•2 = 52
Answer:
52
Step-by-step explanation:
10y + x2
substitute
10(4)+6(2)
multiply
40+12
add
52
Three numbers A, B and C are in the ratio 7: 2: 4. The sum of the three numbers is 104. What is the number C?
Answers
Answer:
C = 32
Step-by-step explanation:
The numbers are in the ratio 7 : 2 : 4 = 7x : 2x : 4x ( x is a multiplier ) , then
7x + 2x + 4x = 104
13x = 104 ( divide both sides by 13 )
x = 8
Thus C = 4x = 4 × 8 = 32
y= -3x + 1 and y= x - 3
Answers
Answer:
x= 1
y= -2
Step-by-step explanation:
equation (1): y= -3x+1
equation (2): y=x-3
solve the system of equations by substitution:
step1: sub ( x-3 ) for y in equation 1:
y = -3x+1
x-3 = -3x+1
step2: simplify the equation to get x:
(add 3 for both sides)
x = -3x+4
(add 3x for both sides)
4x = 4
(divide 4 from both sides)
x = 1
step3: sub the value of x (x=1) in equation 2:
y = x-3
y = 1-3
step4: solve the equation to get y:
y = -2
Write 360 as a product of prime factors.
Give your answer in index form.
Answers
Answer:
2³ × 3² × 5
Step-by-step explanation:
360 = 2 × 2 × 2 × 3 × 3 × 5 = 2³ × 3² × 5
Noah and Lin are marketing paper cones to hold popcorn to hand out at parent math night. They want the cones to hold 9 cubic inches of popcorn. What are two different possible values for height h and radius r for the cones?
if h=3, then r=
if r=2, then h=
Answers
Answer: r = 1.69 inches
h = 2.15 inches
Step-by-step explanation: Volume of a solid is the amount of space contained within a solid.
Volume of a cone is directly proportional to radius and height:
[tex]V=\frac{1}{3}\pi r^{2}h[/tex]
They want the cones to hold the same volume of 9 cubic inches.
If height is 3:
[tex]9=\frac{1}{3}\pi r^{2}3[/tex]
[tex]\pi r^{2}=9[/tex]
[tex]r^{2}=2.864[/tex]
r = 1.69 inches
When height is 3, radius is 1.69 inches for a cone to have 9 cubic inches of volume.
If radius is 2:
[tex]9=\frac{1}{3}\pi (2)^{2}h[/tex]
[tex]h=\frac{9(3)}{4 \pi}[/tex]
h = 2.15 inches
If radius is 2 inches, height of the cone is 2.15 inches.
for almost every choice you make in the game you'll need to choose between using your debit card and credit card. to continue enter the day of month when your credit card statement will be issued! enter amount:
floridasms game
Answers
Answer: 19
Step-by-step explanation:
in a triangle xyz the measure angle yxz is 14.5 and the measure of angle xyz is 75 what is the measure of angle xyz in degrees
Answers
the answer is 29363
Step-by-step explanation:
hope this dont help
Answer:
10392
Step-by-step explanation:
;$6%6%-%-:-$-&-'-$-
Write an expression that is equivalent to -2/5(15 - 20d +50)
Explain please!:)
Answers
Answer:
-26 + 4/5d
Step-by-step explanation:
-2/5 ( 15 - 2d + 50)
= -2/5 ( 65 - 2d)
= -2/5 * 65 - (-2/5) * 2d
= -26 - (-4/5d)
= -26 + 4/5d
helppppp! :) i have no clue what to do thank you
Answers
2y ≤ -46 - 6x
y ≤ -46/2 - 6x/2
y ≤ -23 - 3x
Option C
Solve the following equation for x.
10x – 18 = 32
Answers
10x = 32 + 18
10x = 50
x = 50 ÷10
x = 5
option C
PLS HELP WILL GIVE BRAINLIEST!! Identify this set of lines as parallel, perpendicular, or neither.
Answers
Answer:
neither
Step-by-step explanation:
Answer:
neither
Step-by-step explanation:
parallel lines have the same slope
perpendicular lines have the opposite of the reciprocal of the slope of the other line
The slope of the first line is 3 and the slope of the second line is -3.
If the lines were parallel, the slopes would be the same, so 3 = -3 which is not true, so they aren't parallel.
If the lines were perpendicular, the slope of the second line would be the opposite reciprocal of 3, or -1/3. -1/3 does not equal 3, so these lines are not perpendicular
Rachel went out for lunch. Her total for lunch came to $28.55. Rachel wants to leave the waitress a 22% tip. What will be Rachel's total including the tip?
Answers
Answer:
the answer is 6.28 her total is 34.83
Answer:
the answer is 6.28 hope it helps
Choose the inequality that represents the following graph.
Answers
Answer:
D: x ≥ -2
Step-by-step explanation:
The arrow points to the right on the number line, meaning the inequality uses the greater than sign.
The solid point at -2 means that -2 is included in the solution for x.
So, the final inequality is x ≥ -2.
Find the unknown length x in the right triangle, to the nearest tenth .
Answers
Answer:
x = 11.7
Step-by-step explanation:
sin of an angle is opposite/hypotenuse
sin 38 = x/19
x = 19 sin 38
x = 11.7
You need to memorize the definitions of all the trig functions and then this type of problem will be easy for you.
6 times a number is 27 less then the square of that number find the positive soloution
Answers
Answer:
9
Step-by-step explanation:
n2-27=6n
Than n (exponet) 2 - 27 - 6n = 0
Now factor (n-9)(n+3)=0
SOMEONE HELP PLEASE!! ITS DUE AT 16:00 UK TIME ILL GIVE YOU BRAINLIEST IF ITS RIGHT!!!
Answers
Answer:
From left column to right
Left Right
1. 23a+18 1. 7a-6
2. 23a-6 2. 7a-18
3. 23a-18 3. 7a+6
4. 0a+4 4. 0a+0
Step-by-step explanation:
The first example you distribute by doing 3 x 5a plus 3 x 2 + 4 x 2a + 4 x 3
Answer is 15a+6+8a+12=
23a+18
Hope this helped :)
can u pls help me i need help
Answers
im on that to, maybe i can try and help you !!
Halla la ecuación de la circunferencia con r=10 y cuyo centro es el punto medio que une los puntos del segmanto A=(-7,-6) B(3,14). Escribe la ecuación en la forma ordinaria.
Answers
Responder:
(x + 2) ² + (y-4) ² = 100
Explicación paso a paso:
La ecuación de un círculo se expresa como (x-x0) ² + (y-y0) ² = r²
r es el radio
(x0, y0) es el centro
Dado que el centro representa el punto medio de (-7, -6) y (3,14)
x0 = -7 + 3/2
x0 = -4/2
x0 = -2
y0 = -6 + 14/2
y0 = 8/2
y0 = 4
Sustituir en la expresión
(x - (- 2)) ² + (y-4) ² = 10²
(x + 2) ² + (y-4) ² = 100
Por lo tanto, la ecuación requerida del círculo es (x + 2) ² + (y-4) ² = 100
An airplane flies 56 miles due north than 33 miles due east. How many miles is the plane from its starting point?
Answers
Josh and Raheem both invest some money.
Josh invests £1200 at Banks’R’us, who pay 4% simple interest per year.
Raheem invests £1250 at Bank World who pay 3% compound interest per year.
They invest the money for 5 years.
Who has the most money in their account after 5 years?
;v;
Answers
Answer:
Raheem
Step-by-step explanation:
Josh :
using simple interest formula :
Final amount = P(1 + rt)
Final amount = 1200(1 + 0.04*5)
Final amount = 1200(1.2)
Final amount = £1440
Raheem :
Using compound interest formula :
Final amount = P(1 + r/n)^nt
Final amount = 1250(1 + 0.03)^5
Final amount = 1250(1.03)^5
Final amount = £1449.09
Raheem has more money
3 pencils cost $0.45. What is the cost per pencil?
Answers
Answer:
$0.15
Step-by-step explanation:
You have
3 pencils: $0.45
divide both numbers by 3
3 pencils / 3: $0.45 / 3
1 pencil: $0.15
Answer:
0.15
Step-by-step explanation:
3÷.45=.15
Rafael was asked to construct a square inscribed in a circle. He drew a circle and
a diameter of the circle. Describe how to complete his construction. Then, complete
the construction.
Answers
Answer:
here you go
Step-by-step explanation:
can someone please tell me the slope
Answers
Answer:
1/3 or 0.333 repeat
Step-by-step explanation:
slope or rise over run
What is the scale factor and how do you find it?
Answers
jessy took out a loan of $16,500 over 5 years at 4.2% interest to purchase a new car. how much will she pay in interest on the loan. A)$693 B)$3,465 C)$34,650
Answers
Answer:
B
Step-by-step explanation:
First, converting R percent to r a decimal
r = R/100 = 4.2%/100 = 0.042 per year,
then, solving our equation
I = 16500 × 0.042 × 5 = 3465
I = $ 3,465.00
The simple interest accumulated
on a principal of $ 16,500.00
at a rate of 4.2% per year
for 5 years is $ 3,465.00.
David earned a raise of an additional $2.00 per hour. Initially, he started at $14.00 an hour. What is the percent increase in David’s hourly pay? Round percentage to the tenths place.
Answers
2.1%
Step-by-step explanation:
I don't really know how to explain what I did on paper But I got it right on the assignment : D
The percent increase in David’s hourly is;
14.3%
Percent increaseDavid's initial pay per hour = $14 per hourIncrease per hour = $2Thus;
New amount paid per hour = $14 + $2 = $16
Thus;
Percent increase in David's hourly pay = (2/14) × 100% = 14.3%
Read more about percentage increase at; https://brainly.com/question/14432715
Sajid wants to bake cupcakes and muffins. He wants to bake a total of at least 16 cupcakes and muffins
(condition A), and he has 9000 grams of sugar (condition B).
ni
The graph represents the constraints on the number of cupcakes C and muffins M Sajid bakes.
M
20
18
16-
А
14-
12
10
8-
6+
B
41
2+
С
2
4 6
8
10 12 14
18 20
Sajid bakes 3 cupcakes. How many muffins can he bake to meet both his constraints?
Answers
Answer:
At least 13 muffins and at most 16 muffins
Which of the this is a mathematical translation of "A number increased by 7".
A. a + 7
B. 7 + a
C. 7a
D. 7/a
Answers
the keyword is “increased”. That shows that you need to add instead of multiply. “a” is the secret number. Think of it like a sandwich... the bread is a (the secret number) and the meat is + (increased by) and the other bread is the 7. Hope this helps!:)
The diameter of a circle is 4 m. Find its area to the nearest tenth.
Answers
Answer:
12.6m²
Step-by-step explanation:
radius=2
Area=π2²=12.6(1dp)
