Answer:
4x + 45
______
Sunita creates a scale model of an aeroplane. The scale of the model is 4 cm to 15 m. Sunita's model has a wingspan of 17 cm. What is the wingspan of the real aeroplane?
Answer:
36.43m
Step-by-step explanation:
Let the wingspan of the real aeroplane = x
The scale of the model is 4 cm to 15 m.
= 4: 15 = 4/15.
Sunita's model has a wingspan of 17cm.
Hence:
4cm/15m = 17cm/xm
Cross Multiply
4x = 15 × 17
4x = 255
x = 255/4
x = 36.428571429 m
Approximately = 36.43 m
Therefore, the wingspan of the real aeroplane is 36.43m
bin at a department store contains blue and red blankets. The ratio of blue blankets to red blankets is 2 to 3. What percent of the blankets in the bin are blue?
Answer:
66.6667
2 out of 66.6667 is 3%
Step-by-step explanation:
2 out of what is 3%?
2 out of X is 3%
Equation: Y/X = P%
Solving our equation for X
X = Y/P%
X = 2/3%
Converting percent to decimal:
p = 3%/100 = 0.03
X = 2/0.03
X = 66.6667
Answer:
66.6667
2 out of 66.6667 is 3%
Step-by-step explanation:
2 out of what is 3%?
2 out of X is 3%
Equation: Y/X = P%
Solving our equation for X
X = Y/P%
X = 2/3%
Converting percent to decimal:
p = 3%/100 = 0.03
X = 2/0.03
X = 66.6667Answer:
Step-by-step explanation:
I really need help plz
A concentrated cleaning solution must be mixed with water in a container that allows users to spray onto the surfaces they need to clean. Pam’s mom asked her to add 30 ounces of cleaning concentrate into the sprayer and then add water to fill the sprayer. Her father told her that the sprayer must contain 20% cleaning concentrate and 80% water.
How many ounces does the sprayer hold? ounces
How many ounces of water was added to the sprayer? ounces
Answer:
the sprayer holds 150 0z.
120 oz. of water was added to the sprayer
Step-by-step explanation:
PLEASE HELP .!!! ILL GIVE BRAINLIEST.. *EXRTA POINTS* .. DONT SKIP :(( !
ILL GIVE 40 POINTS .
Answer:
You can substitute
4
as
x
in the first equation because
x
and
4
are equal.
2
(
4
)
+
y
=
29
8
+
y
=
29
y
=
21
Step-by-step explanation:
what multiplies to -15 and adds to -3
ie +5= 20 are shown below. The first and second steps to solve the equation 5 +55= 20-5 5 5 = 15 Which property was applied in the second step? O Addition Property of Equality O Subtraction Property of Equality Multiplication Property of Equality O Division Property of Equality
Answer:
x+8=10
x−4=22
x÷3=6
7x=28
Step-by-step explanation:
George has cut down a 60ft high oak tree. He now wants to chop it into smaller pieces. He first cuts it into two pieces that are both 30ft. And then he continues on into making ten pieces that all are 6ft long before loading them onto his truck.
picture08
By looking at the different pieces of wood we can see that the following holds true.
60=30+30=6+6+6+6+6+6+6+6+6+6
This is called the reflexive property of equality and tells us that any quantity is equal to itself
a=a
We can also use this example with the pieces of wood to explain the symmetric property of equality. This property states that if quantity a equals quantity b, then b equals a.
ifa=b,thenb=a
Or if we use our example
if60=30+30,then30+30=60
Another property that can be explained by this is the transitive property of equality. It tells us that if a quantity a equals quantity b, and b equals the quantity, c, then a and c are equal as well.
ifa=bandb=c,thena=c
Or in the numbers taken from the oak tree example
if60=30+30
and30+30=6+6+6+6+6+6+6+6+6+6
then60=6+6+6+6+6+6+6+6+6+6
Since we know that 30 + 30 = 20 + 40 and that 30 + 30 = 60 we can substitute 30 + 30 for 20 + 40 and get 60 = 20 + 40. This is called the substitution property of equality.
If a = b, then a can be substituted for b in any expression.George has cut down a 60ft high oak tree. He now wants to chop it into smaller pieces. He first cuts it into two pieces that are both 30ft. And then he continues on into making ten pieces that all are 6ft long before loading them onto his truck.
picture08
By looking at the different pieces of wood we can see that the following holds true.
60=30+30=6+6+6+6+6+6+6+6+6+6
This is called the reflexive property of equality and tells us that any quantity is equal to itself
a=a
We can also use this example with the pieces of wood to explain the symmetric property of equality. This property states that if quantity a equals quantity b, then b equals a.
ifa=b,thenb=a
Or if we use our example
if60=30+30,then30+30=60
Another property that can be explained by this is the transitive property of equality. It tells us that if a quantity a equals quantity b, and b equals the quantity, c, then a and c are equal as well.
ifa=bandb=c,thena=c
Or in the numbers taken from the oak tree example
if60=30+30
and30+30=6+6+6+6+6+6+6+6+6+6
then60=6+6+6+6+6+6+6+6+6+6
Since we know that 30 + 30 = 20 + 40 and that 30 + 30 = 60 we can substitute 30 + 30 for 20 + 40 and get 60 = 20 + 40. This is called the substitution property of equality.
If a = b, then a can be substituted for b in any expression.
lol another math problem i need help on
Answer:
32x - 8
Step-by-step explanation:
8 x 4 = 32
(-)2 x 4 = -8
32x - 8
hope this helps and that it's right :)
Plz help !! I’ll mark you as a brainlist
If you randomly select a card from a well-shuffled standard deck of 52 cards, determine the probability that the card you
select is a King
a) Write your answer as a reduced fraction,
b) Write your answer as a decimal, rounded to the nearest thousandth.
c) Write your answer as a percent. Round to the nearest tenth of a percent as needed.
Answer:
a) 1/13
b) 0.077
c) 7.69%
Step-by-step explanation:
4 kings in a standard 52 card deck. Just find the fraction of 4/52 and then you will be able to find the percent, decimal and of course, fraction.
Answer:
Here are all 52 cards
A♥ 2♥ 3♥ 4♥ 5♥ 6♥ 7♥ 8♥ 9♥ 10♥ J♥ Q♥ K♥
A♦ 2♦ 3♦ 4♦ 5♦ 6♦ 7♦ 8♦ 9♦ 10♦ J♦ Q♦ K♦
A♠ 2♠ 3♠ 4♠ 5♠ 6♠ 7♠ 8♠ 9♠ 10♠ J♠ Q♠ K♠
A♣ 2♣ 3♣ 4♣ 5♣ 6♣ 7♣ 8♣ 9♣ 10♣ J♣ Q♣ K♣
Here are all the cards that are either a club or a 5:
5♥
5♦
5♠
A♣ 2♣ 3♣ 4♣ 5♣ 6♣ 7♣ 8♣ 9♣ 10♣ J♣ Q♣ K♣
Count them. There are 16.
So the probability is 16 out of 52 or 16/52 which reduces to 4/13.
Step-by-step explanation:
Step 1: figure out the total number of cards you might pull.
Write down all the possible cards and mark the ones that you would pull out (in our case we’ve been asked the probability of a club or a seven so we’re going to mark all the clubs and all the sevens):
hearts: 2, 3, 4, 5, 6, 7, 8, 9, 10, j, q, k, A
clubs: 2, 3, 4, 5, 6, 7, 8, 9, 10, j, q, k, A
spades: 2, 3, 4, 5, 6, 7, 8, 9, 10, j, q, k, A
diamonds: 2, 3, 4, 5, 6, 7, 8, 9, 10, j, q, k, A
This totals 16 cards. *
Step 2: Count the total number of cards in the deck(s). We have one deck, so the total = 52
Step 3: Write the answer as a fraction. Divide step 3 by Step 4:
16 / 52
what is the value of -5 ?
Answer:
5
Step-by-step explanation:
You just change the signs
Answer: it will depended on the -5 i think if you write it in standard form
Step-by-step explanation:
George recorded the temperature of a liquid during science class.
Recorded temperatures (°C):37, 37, 42, 42, 42
Which measure of center best summarizes the temperatures and what is the value of this chosen measure?
Move a word and a value to complete the sentences.
The best measure of center for this data is the
The value of this measure of center is
mean
median
37
39.5
40
Answer: median and 42!
Step-by-step explanation:
need help! it’s due today. Brainliest to whoever gets correct
Answer:
B. about 41
A. 11
Step-by-B.step explanation:
Answer:
B. about 41
A. 11
Step-by-step explanation:
-8x - 8 x = 5 + 5 what does x equal?
CAN SOMEONE PLEASE HELP MEEEE? PLEASSEEE. EMERGENCY!! 30 POINTS!! PLEASE AND THANK YOU.
Answer:
[tex]\sqrt{2n^{2}}[/tex]
You have the side lengths of the two legs, n and n.
Then, using the pythagorean theorem you have to find the length of the third side:
[tex]a^2 + b^2 = c^2\\n^2 + n^2 = c^2\\2n^2 = c ^ 2\\\sqrt{2n^2} = c[/tex]
where c is the third side
alicia has 428 candies she is putting them in portion cups for a party if she uses 30 candies in a cup how many portion cups can she fill?
A bag contains 5 red marbles, 3 blue marbles, 7 yellow marbles, and 2 green marbles. Which ratio can be used to compare the red
marbles to the blue marbles?
A) 3/5
B) 3/8
C) 5/3
D) 5/8
Answer:
C) 5/3
Step-by-step explanation:
The ratio comparing red to blue marbles can be created by putting 5 and 3 together, since there are 5 red marbles and 3 blue marbles
This gets you 5/3
So, the correct answer is C) 5/3
Answer:
5/3
Step-by-step explanation:
This is because there are 5 red marbles and there are 3 blue marbles. If you put them side by side, the ratio is 5:3 or 5/3.
Mr. Bayless invests $3500 in a savings plan. The savings account pays an
annual interest rate of 4.75% on the amount he put in at the end of the
year. How much will Mr. Bayless earn if he leaves his money in the savings
plan for 8 years and how much money will be in his savings plan at the end
of 8 years?
Answer:
Interest = $1330
Amount = $4830
Step-by-step explanation:
Given
Principal = $3500
Rate = 4.75%
Time T = 8 years
Interest =PRT/100
Interest = 3500*4.75*8/100
Interest = 35*4.75*8
Interest = $1,330
Hence the interest earned by Mr. Bayless is $1,330
Amount after 8years = Principal + Interest
Amount after 8years = 3500+1330
Amount after 8years = $4830
Hence the amount after 8years is $4830
The graph of a proportional relationship contains the point (8,4)
What is the corresponding equation?
Enter your answer as a fraction in simplest form by filling in the boxes.
Y= — X
Answer:
It is A I took it but I am not sure
Step-by-step explanation:
HI SOMEONE PLEASE HELP I HAVE NO IDEA HOW TO DO THIS :(( i need to know the measure of angles 13 and 12 then the measure of the line segment SG. Thank you sm in advance
Answer:
Angle 13 equal 90 and Angle 12 equal 45
Step-by-step explanation:
This is a square so all of the corner angles and the diagonals angles measure 90 degrees. A square also forms 4 congruent isoceles triangles or technically 45-45-90 triangles. So that means the following angles measure 45 degrees since they share a point
Angle 5,6,7,8,9,10,11,12. So the measure of 12 is 90 degrees.
To find the measure of 13, in a square diagonals bisect each other and form perpendicular lines so that means every angle in the middle of the square measure 90 degrees.
Using that
Angle 13,15,16 and R measure 90 degrees so Angle 13 equal 90.
How do you solve for x and y?
Answer:
x = 60°, y = 30°
Step-by-step explanation:
The sum of the triangle angles is always 180°
Therefore 90° + x + y = 180°
It is also known that x = 2y
// combine the given value of x into the previous expression
90° + 2y + y = 180°
2y + y = 180° - 90°
3y = 90°
// divide both sides by 3
y = 30°
// then combine the given value of y into the expression x = 2y
x = 2 * 30°
x = 60°
Two fair dice are rolled at the same time. What is the probability that one die will show 3 and the other will show 4? A. 1/36
B. 1/18
C. 1/12
D. 1/6
Answer:
1/36
Step-by-step explanation:
There are 6 numbers on a die. You have a 1/6 chance of rolling a 3 and a 1/6 chance of rolling a 4. 1/6 times 1/6 = 1/36.
-3x + 14 = 26
pls answer asap, i will give brainliest award also please answer with step-by-step explanation!
Answer:15
Step-by-step explanation:it just is the answer
what is the value of x?
Answer:
x=10
Step-by-step explanation:
Well, lets see. 5x+9x+40 is 180 degrees. So 14x+40=180. 14x=140. So x=10
what is x⁶+a²x³y/x⁶-a⁴y²
Answer: x^3 / x^3 - a^2y
Step-by-step explanation: Simplify the expression.
I hope this helps you out!
Help! What is the angle measure of x in the trapezoid below?
A trapezoid with angle measures 74 degrees, 74 degrees, x, x.
16°
32°
106°
212°
Answer:
106 will be it because if you count the degrees
Mr. Tyssee got a haircut, which cost $35. He gave the
stylist a 15% tip. How much will he pay for the haricut
including tip?
Answer:
$40.25
Step-by-step explanation:
15% = 0.15, so multiply 35 * 0.15 = 5.25 to get the tip.
Since the answer is asking for both the tip and the cost, add 35 + 5.25, which gives the answer $40.25
Which event below has the GREATEST probability of winning a prize?
A. choosing 1 number out of a on the spinner.
B. Flip a heads on a coin
C. Rolling a 2 on a FNC (Fair Number Cube) on the 1st roll.
D. Choosing the ball beneath the correct cup.
Answer:
Probably B.
Step-by-step explanation:
It's a 50% chance and the other ones seem less likely than that.
A. no clue what that means
B. 1/2 chance/ 50%
C. 1/6 chance which is not as great as B.
D. 1/3 chance which is closer to B but still not as good.
Bob bought a thing for $350 and sold it for $450. What was his percentage gain?
Plz need answers ASAP!!
Answer:
The answer 128.57%
Step-by-step explanation:
The explanation is
Answer:
28.57%
Step-by-step explanation:
1) Given two equations: 1) y = x - 3 and 2) y = -2x + 9. graph and state the point of
intersection below: *
Your answer
Answer:
1) y = - 3 and x = 3
2) x = 9/2 and y = 9
Step-by-step explanation:
Substitute x= 0 to find y and y=0 to find x
HELP
HELP
ITS HARD
pls pls pls pls pls