Answer:
a = 11
b = 14
c = 28
Step-by-step explanation:
a+b+c = 53
b-3 = a
c = 2b
substitute for a and c
(b-3)+b+(2b) = 53
reduce
4b-3 = 53
add 3 to each side
4b = 56
divide both sides by 4
b = 14
a = 14-2 = 11
c = 2(14) = 28
Please help me :( please
Answer:
I did no math but just by looking at it am like 70 percent sure it's 6.2
Of the 800 participants in a marathon 220 are running to raise money for a cause. How many participants out of 100 are running for a cause?
Answer:
27.5 /100 are running for a cause
Step-by-step explanation:
We know that 220/800 are running for a cause
Divide the top and bottom by 8 to get the fraction out of 100
220 /8 =27.5
800/8 = 100
27.5 /100 are running for a cause
by elimination method solve 2x=10-y and 3x-2y=1
Answer:
(3,4)
Step-by-step explanation:
hope this answerss
what 2 numbers multiply to 77 and add to 18
Answer:
11 and 7
Step-by-step explanation:
11+7=18, and 11 x 7=77
Hope I helped!
Answer:
i think it is 11 and 7
Step-by-step explanation:
In parallelogram PQRS, PQ =4x+28, QR=x+31, RS = 10X+4. Which of the
following is the length of RS ? Hint: draw a picture.*
0 1
44
32
4
Answer:
44
Step-by-step explanation:
1) we know that opposite sides of a parallelogram are congruent so
4x+28=10x+4
2) subtract 4 on both sides
4x+24=10x
3)subtract 4x on both sides
24=6x
4)divide by 6 on both sides
4=x
5)substitute for x
length of RS =10(4)+4
length of RD=44
The length of the side RS of the parallelogram PQRS is 44.
Given,
Side PQSide QRSide RSAs we know in a parallelogram, the opposite sides are parallel and equal. So, in this case, side PQ is equal to side RS.
Computation:
[tex]\begin{aligned}\text{Side RS}&=\text{Side PQ}\\10\text{X}+4&=4\text{X}+28\\10\text{X}-4\text{X}&=28-4\\6\text{X}&=24\\\text{X}&=4\end{aligned}[/tex]
When the value of X is determined to be 4.
By using the substitution method the value of X will be used in the side RS to determine the length of RS.
[tex]\begin{aligned}\text{RS}&=10\text{X}+4\\&=(10\times4)+4\\&=40+4\\&=44\end{aligned}[/tex]
Therefore, the length of RS is 44.
To know more about parallelogram, refer to the link:
https://brainly.com/question/1563728
Roberta jogs 3 laps the first day, 5 laps the second day, 7 laps the third day,
and so on. On which day will Roberta jog 13 laps if the pattern continues ?
Answer:
Sixth day
Step-by-step explanation:
Keep adding 2 until you get to 13
Two out of 15 people surveyed were left handed. Based on the data how many people would you predict to be left handed out of 405 people?
A.15
B.27
C.810
D.54
Answer: D. 54 people
Step-by-step explanation:
Since there are a total of 405 people, you first divide 405 by 15 to get 27. Then multiply 27 by 2 considering two in 15 people are left handed, and you're left with 54 people.
I need help on this really fast please
Answer:
12=3+3+3+3
Step-by-step explanation:
The circumference of a circular garden is 28 feet. Which of the following expressions best represents the radius of the garden?
A. 28π28 over pi
B. 28(π)28 times pi
C. 282π28 over 2 pi
D. 28(2π)
Answer: The answer is ACTUALLY C
Step-by-step explanation:
REMEMBER: The radius is always half of the diameter.
So the question is asking us what is the radius of a garden with a circumference of 28. In order to find HALF of that you would need to divide 28 so the answer is ( C ) not d...
SOLID PROOF:
During a certain day, a worker made 81 parts. He usually does 45 parts per day. What was the percent by which he inrceased the number of parts he usually makes?
Answer:Percent Increase n the number of parts usually made = 80%
Step-by-step explanation:
Percent Increase = (Increase / Initial Number of parts made daily) X 100/1
Initial Number of parts made daily = 45
Current number of parts ,made daily = 81
Percent Increase = 81-45/ 45 x 100
=36/45 x100/1
= 0.8 x 100
= 80%
Answer:
80 percent
Step-by-step explanation:
The sum of seven and the quotient of a number and five is eleven?
Answer:
7+(a/5)=11
Step-by-step explanation:
Evaluate the expression when b = -2 and c = 2. b - 8c
Answer:
- 18
Step-by-step explanation:
For this problem, you want to replace the letters with the values they gave you so...
b - 8c into -2 - 8 (2)
1) Simplify 8 × 2 to 16.
−2 − 16
2) Simplify.
−18
URGENT How many 1/2 inch cubes does it take to fill a box with a width of 3 1/2 inches, length of 2 1/2 inches, and a height of 1 inch?
Step-by-step explanation:
3 1/2 x 2 1/2 x 2 1/2
=?
? ÷1/2= answer
Answer:
I think the answer will be about 17 1/2 cubes needed.
Step-by-step explanation:
Hope this helps!
Which number line would best model the quotient 3/4 divided by 6?
what is 12% as a fraction in simplest form?
Answer:
10
Step-by-step explanation:
you convert the 12% so that it becomes a fraction...it becomes 12\100 , then put it in its lowest form ...
If m∠VBC=(3x+4)∘, what is the value of x?
Answer:
x = 29
Step-by-step explanation:
⇒ x + ( 2 x + 2 ) + ( 3 x + 4 ) = 180 ⇒ 6 + 6 = 180 ⇒ 6 x = 180 − 6= 174 ⇒ x = 174 6 = 29
Can the sides of a triangle have lengths 2, 4, 5
Answer:
yes
Step-by-step explanation:
triangles like obtuse ones dont need equal sides
Answer:
yes
Step-by-step explanation:
the two sides add up to more than the hypotenuse
78x − 12 = 316x + 5 what is the answer pls help
Answer:
-0.0714 approx
Step-by-step explanation:
78x − 12 = 316x + 5
Bring all the like terms together
78x -316x = 5 + 12
-238x = 17
∴ x = 17 ÷ -238 = -0.0714 (rounded up to 3 significant figures)
match the rule to the sequence
n + 5 8, 13, 18, 23, 28
5n 6, 7, 8, 9, 10
3n + 5 5, 10, 15, 20, 25
5n + 3 8, 11, 14, 17, 20
Answer:
a) aₙ = n+5 → 6,7,8,9,10....
b) aₙ = 5n → 5,10,15,20,25...
c) aₙ = 3n+5 → 8,11,14,17,20
d) aₙ = 5n+3 → 8,13,18,23,28
Step-by-step explanation:
Explanation
Given [tex]n^{th}[/tex] term of the sequence
aₙ = n+5
Put n =1
a₁ = 1+5 =6
put n =2
a₂ = 2+5 =7
Put n=3
a₃ = 3+5 =8
and so on
The sequence 6,7,8,9,10....
b)
Given [tex]n^{th}[/tex] term of the sequence aₙ = 5n
Put n=1 ⇒ a₁ = 5
put n=2 ⇒ a₂ = 10
and so on
5,10,15,20,25..
c)
Given [tex]n^{th}[/tex] term of the sequence aₙ = 3n +5
put n=1 ⇒ a₁ =8
Put n=2 ⇒ a₂ =11
Put n=3 ⇒ a₃ = 14
and so on
The sequence 8 , 11, 14 , 17 , 20 ..
d)
Given [tex]n^{th}[/tex] term of the sequence aₙ = 5n +3
Put n=1 ⇒ a₁ = 8
Put n=2⇒ a₂ = 13
Put n=3 ⇒a₃ = 18
and so on
The sequence 8,13,18, 23..
The diagram shows triangle PQR.
PSR is a straight line.
size of angle PQS : size of angle SQR = 3:1
S
Work out the size of angle PSQ
Answer:
Angle PSQ is 61°
Step-by-step explanation:
In the triangle ΔPQR, we have;
m∠QPS = 65°
m∠PRQ = 43°
Line PSR is a straight line
m∠PQS : m∠SQR = 3:1
Therefore;
∠PQR = 180° - (∠QPS + ∠PRQ), by the angle sum theorem of a triangle
∴ ∠PQR = 180° - (65° + 43°) = 72°
∠PQR = 72°
∠PQR = m∠PQS + m∠SQR by angle addition postulate
m∠PQS : m∠SQR = 3:1
∴ m∠PQS = 3 × m∠SQR
∴ ∠PQR = m∠PQS + m∠SQR = 3 × m∠SQR + m∠SQR = 4 × m∠SQR
∠PQR = 4 × m∠SQR
∴ 4 × m∠SQR = ∠PQR = 72°
m∠SQR = 72°/4 = 18°
m∠PQS = 3 × m∠SQR = 3 × 18° = 54°
m∠PQS = 54°
∠PSQ = 180° - (∠QPS + ∠PQS) by the angle sum theorem
∴ ∠PSQ = 180° - (65° + 54°) = 61°
Angle ∠PSQ = 61°.
Please help me I want a good grade!!
Answer:
a
Step-by-step explanation:
Answer:
F
Step-by-step explanation:
To figure out if a set of angles are in a triangle, make sure they add up to 180
F) 58,70,62 58 + 70 + 62 = 190 This option is incorrect
G) 41,68,71 41 + 68 + 71 = 180 This option is correct
H) 68,60,52 68 + 60 + 52 = 180 This option is correct
J) 73,42,65 73 + 42 + 65 = 180 This option is correct
Since option F did not equal 180, F is the answer.
What equation could be written for this table?
There is a bag filled with 4 blue, 3 red and 5 green marbles.
A marble is taken at random from the bag, the colour is noted and then it is replaced.
Another marble is taken at random.
What is the probability of exactly 1 red?
Answer:
You are selecting marbles with replacement. The marble selections (trials) are independent and the marble selection follows the binomial distribution.
The probability of selecting a red marble the first time is 1313.
(This is because 4 out of 12 marbles are red and412412 reduces to 1313.
The probability of selecting a red marble the second time is 1313.
The marble selections are independent and you can multiply the two probabilities to get the following:
probability of getting 2 reds = (13)2(13)2
=19=19.
So the probability of getting two reds is 1919.
3 points
4.8 cm
B
3.6 cm
Calculate the length of AC.
Answer:
Solve systems of two linear equations in two variables algebraically, and estimate solutions by graphing the equations. Solve simple cases by inspection. For example, 3x + 2y = 5 and 3x + 2y = 6 have no solution because 3x + 2y cannot simultaneously be 5 and 6.
3.6cm
Here are the ingredients for making pineapple sorbet for 6 people. 800g 4 egg whites 1/2 lemon 100g cater sugar Ann makes pineapples sorbet for 9 people . workout how many pinapple she uses
63°+4x+13=180
Find the m
Answer:
y=x+10
Step-by-step explanation:
Ana has 296 coins in her coin collection. She
same number of coins in each of 7 jars. About how
Many coins are in each jar?
HELP QUICK. DONT PUT THE .NUMBER ANSWER PLS. PUT A SOLID ANSWER
Answer:
2,072
296 × 7 = 2,072
Step-by-step explanation:
...
Identify the equation of a line with a slope of -4 and a y-
intercept of (0, 2).
Step-by-step explanation:
We know that the formula for slope is y=mx+b, with m equaling the slope itself and b equaling the y-intercept. Since the slope is -4, we can safely say that the equation starts off as y=-4x.
The y-intercept is (0,2). This means that the x-coordinate is 0 and the y-coordinate is 2, so the y-intercept is 2. Since 2 is being added, the equation is y=-4x+2
Answer:
y=-4x+2
Extra points for hemo
Elise is standing on top of a 50 foot building and sees her friend, Molly. If Molly is 30 feet away from the base of the building, what is the angle of depression from Elise to Molly? Elise's eye height is 4.5 feet.
Answer:
59.04°
Step-by-step explanation:
Elise is standing on top of a 50 foot building and sees her friend, Molly. If Molly is 30 feet away from the base of the building, what is the angle of depression from Elise to Molly? Elise's eye height is 4.5 feet.
We solve using the Trigonometric function of Tangent
tan x = Opposite/ Adjacent
tan x= 50 ft/30ft
x = arc tan (50 ft/30 ft)
x = 59.036243468°
Approximately = 59.04°