Answer:
7:5 is the same as 21: 15
Step-by-step explanation:
21/7 = 3 and 3*5=15
i divided 21 by 7 to see how many times it was multiplied to get there, so i could do the same thing to the 5
I hope this helps :)
Answer:the answer is 15
Step-by-step explanation:
I got it right lol
=====MATH QUESTION=====Extra Points
study regarding the age at which a person married for the 1st time was completed and the results are shown in the ogive above. Approximately what percent of the individuals in the study married for the 1st time between the ages of 20 and 28 years old?(Also if you could explain your answer, I would really like to use this as a learning opportunity)
Group of answer choices
5%
25%
50%
75%
Write the untit rate rounded to the nearest hundredth ( two decimal places ) A coffee shop sold 48 cups of coffee in 4 hours how many cups do they sell per hr
Answer:
The coffee shop sells 12 cups/hour.
Step-by-step explanation:
To figure this out you would divide the amount of cups (48) by the amount of hours (4)
In 1970, the median home value was $20,000. By 2020, the median home value was $320,000. What is the percent increase in home value in those 50 years?
Answer:
1500%
Step-by-step explanation:
The formula for Percentage increase is
Increase/ Initial Amount × 100
Increase = Current Amount - Initial Amount
Increase = $320,000 - $20,000
Increase = $300,000
Percentage Increase =
$300,000/$20,000 × 100
= 1500%
The percent increase in home value in those 50 years is 1500%
Sarah completed about 85% of her school homework. Her friend Emily completed x percent homework more than Sarah. Which expression represents the percent of homework Emily completed?
Answer:
Step-by-step explanation:
85-x=100
85 represents sarah's hw
x represent Emily's hw
100 represents total completion
Answer:
85 + x
C is the answer
Step-by-step explanation:
guys I need help
plss answer activity 1.2.3 & 4
as long as you can... I will mark you brainliest
I will be happy if you help me
(╯︵╰,)
Answer:
Activity 1:-
1) Pi (π) is the ratio of circumference and the diameter of the circle which is 22/7. So
[tex]\frac{c}{d} =\pi = \frac{22}{7}[/tex]
[tex]=> c = \frac{22}{7} d[/tex] where circumference is directly proportional to diameter (d).
2) Area of a parallelogram = Altitude × Base
Base = 10 cm. So ,
[tex]A = 10a[/tex] where area (A) is directly proportional to altitude (a).
3) Let the fare of 1 unit distance be f
So, for distance d , total fare (F) will be [tex]F = fd[/tex] where total fare (F) is directly proportional to distance (d).
4) Let the distance be 'D' , speed be 's' & time be 't' .
We know that [tex]s = \frac{D}{t}[/tex] where speed (s) is directly proportional to distance (D) & inversely proportional to time (t).
5) We know that area of a square (A) = side² (s²)
[tex]=> A = s^{2}[/tex] where area(A) is directly proportional to side(s).
Activity 2:-
1) p is directly proportional to sum of u & w.
⇒ p ∝ u + w
⇒ p = k (u + w)
Putting the values of p , u & w
⇒ 14 = k(4 + 3)
⇒ 7k = 14
⇒ k = 14/7 = 2
2) r is directly proportional to square of t.
⇒ r ∝ t²
⇒ r = k × t²
Putting the values of r & t
⇒ 16 = k × 16²
⇒ k = 16² ÷ 16 = 16
3) y is directly proportional to cube root of x.
⇒ y ∝ ∛x
⇒ y = k × ∛x
Putting the values of x & y ,
⇒ 2 = k × ∛27
⇒ 3k = 2
⇒ k = 2/3
4) z is directly proportional to cube of d.
⇒ z ∝ d³
⇒ z = k × d³
Putting the values of d & z ,
⇒ 5 = k × 2³
⇒ 8k = 5
⇒ k = 5/8
5) Total Surface Area (SA) is directly proportional to square of the sides (s).
⇒ SA ∝ s²
⇒ SA = k × s²
Putting the values of SA & s ,
⇒ 96 = k × 4²
⇒ 16k = 96
⇒ k = 96/16 = 6
Anyone know??? thank you
Answer: nope
Step-by-step explanation:
a quadrilateral has 2 angles that measure 100 and 60 degrees the other angles have a ratio of 3:17 . what are the measures of those angles?
Answer:
30° , 170°
Step-by-step explanation:
Let the remaining two angles be 3x & 17x. As it is a quadrilateral , the sum of all the angles of quadrilateral is 360°. So,
[tex]3x + 17x + 60 + 100 = 360[/tex]
[tex] = > 20x + 160 = 360[/tex]
[tex] = > 20x = 360 - 160 = 200[/tex]
[tex] = > x = \frac{200}{20} = 10[/tex]
Putting the value of x , remaining angles are
(3×10 = 30°) & (17×10 = 170°)
Step-by-step explanation:
the missing angles 3:173x+17x+60+100=360°20x+160=360°20x=360-16020x=200°divide both sides by 20X=10substitute X=10 in 3x and 17x3(10)=30°17(10)=170°In a right triangle the length of a hypotenuse is c and the length of one leg is a, and the length of the other leg is b, what is the value of b, if c=5, a=3
Answer:
b = 4
Step-by-step explanation:
Try setting up the equation of the pythagorean theorem.
hypotenuse^2 = leg(a)^2 + leg(b)^2
c^2 = a^2+b^2
Now substitute what you know and solve for the unknown.
5^2 = 3^2+b^2
25 = 9 + b^2
b^2 = 25-9 = 16
b = 4.
Please somebody HELP!!!! 100 PTS!!!
log1/2 8 = -3 1/3 3
Answer:
-3
Step-by-step explanation:
[tex]log_{\frac{1}{2} }8=-log_{2}8=-log_{2} (2^{3})=-3[/tex]
Answer:
-3
Step-by-step explanation:
i forgot how to do the log thingy but the guy on top is also correct
Are the ratios 13:9 and 6:3 equivalent?
Which number corresponds to 25%?
25
10.6
100
13.25
125
53
66.25
63.6
78
Answer:
25
Step-by-step explanation:
because 25 is %25 of 100
Answer:
25
Step-by-step explanation:
25% is 25 pieces out of 100 (cent). This means 25 corresponds to 25%. Another answer could be .25, but that is not there.
Mr. Lim is building a deck. He cuts a 9 foot piece of wood into
3 pieces of the same length. How long is each piece of wood?
Show your work.
Answer: 3
Step-by-step explanation: 9/3=3
Help pls! Extra p! Thank youu
Answer:
(C) 48 ft^3
Step-by-step explanation:
Volume=L*W*H=6*4*2=24*2=48, making the correct choice (C) 48 ft^3
What is the constant for 5c2+7d
Answer:
2
Step-by-step explanation:
5 and 7 are the coefficients if you need them
help plz due today i dont want to fail!
Complete each statement to describe a diagram that represents each situation. Then complete the addition expression to represent the final temperature. a. The temperature was 80° F and then fell 20° F. A number line diagram with an arrow that starts at , is units long, and points to the left. addition sentence: 10 + ( -4 ) b. The temperature was -13° F and then rose 9° F. A number line diagram with an arrow that starts at , is units long, and points to the right. addition sentence: + c. The temperature was -5° F and then fell 8° F. A number line diagram with an arrow that starts at , is units long, and points to the left. addition sentence: + ( )
Answer:
80-20=60f
Step-by-step explanation:
Answer:
he gave you the wrong answer
Step-by-step explanation:
Please help me I'm really confused on how you figure these out
Answer:
i think it is not related
Step-by-step explanation:
hope this helps <3
just please help help help help
Answer:
C.{(-3,10),(-2,5),(1,2),(-2,-4)}
6-x=5x+30
I need help understand this problem step by step
6
−
x
=
5
x
+
30
6
-
x
=
5
x
+
30
Move all terms containing
x
x
to the left side of the equation.
Tap for more steps...
6
−
6
x
=
30
6
-
6
x
=
30
Move all terms not containing
x
x
to the right side of the equation.
Tap for more steps...
−6x=24-6x= 24 Divide each term by −6-6 and simplify. x=−4
39,000 over 12 = ?? Also, show your work so I can do the rest of these myself
Answer:
3,250
Step-by-step explanation:
Let's go from left to right, using multiple of 12 times a power of 10 in the process.
What is the closest multiple of 12,000 (12 * 10^3) to 39,000 without going over? That's 3 (36,000). That's the thousands digit in this answer.
12,000 * 3 = 36000
39000 - 36000 = 3000
What's the closest multiple of 1,200 (12 * 10^2) to 3,000 without going over? That's 2 (2,400). That's the hundreds digit.
1,200 * 2 = 2,400
3,000 - 2,400 = 600
What is the multiple of 120 (12 * 10) closest to 600 without going over? That's 5 (600, it's even!). That's the tens digit. Since it goes evenly, 0 is the ones digit.
120 * 5 = 600
600 - 600 = 0.
The answer to 39,000 over 12 is 3,250.
please i need help as soon as possible
Larry bought a lawn ornament that was marked down 60% from an original price of $75. If he paid 10% sales tax, what was the total cost of the lawn ornament?
Answer:
$33
Step-by-step explanation:
Hope this helps!
7/8pq + 5/16pq
someone please help me
19/16 or 1 3/16 :D I hope this helped u
8+8-8 ???????????????
Answer:8
Step-by-step explanation:
Answer:
8
Step-by-step explanation:
8+8=16
16-8=8
[][][][][][]
A coordinate plane with Number of Text Messages on the x-axis and Number of Minutes Used on the y-axis, with points plotted at, (10, 20), (20, 40), (30, 60), and (40, 80).
A prepaid cell phone charges a preset number of minutes to use text messaging. The graph represents y, the number of minutes used for x, the number of text messages sent and received. Is there a direct variation? Which equation represents the relationship?
Yes, y = 2x.
Yes, y = 20x.
No, y = x + 10.
No, y = x + 20.
Answer:
y=2x or "A" is correct
Step-by-step explanation:
Please help me!!!!!!!!
Answer:
Step-by-step explanation:
19. Mel cleans houses.
She earns $7.50 every hour that she dusts.
She earns $10.00 every hour that she scrubs floors.
She scrubbed floors for 1 1/2 hours and dusted for hours.
How much money did Mel earn?
Answer: $45
Step-by-step explanation: 10 for the hour she scrubbed the floor half of that which is 5 for the half hour she scrubbed so that would be $15, then 7.50 times 4 for the hours she dusted which would be 30, and 30 plus 15 is 45
SOMEONE HELP ASAP IM BEGGING U PLEASE !!
Answer:
I believe it is yes because he is correct
(-5,5)(5,0) help pls need the work shown as well ahaha!
Answer:
-1/2
Step-by-step explanation:
Formula to find slope is y2-y1/x2-x1
Chose one ordered pair to be the 2 and the other one to be the 1
I chose the 2nd one to be 2.
Plug in the y-value from the 2nd ordered pair to y2 because its the 2.
Plug in the x-value from the 2nd ordered pair to x2 because its the 2.
Now you have 0-y1/5-x1
Do the same thing but for the 1.
Plug in the y-value from the 1st ordered pair to y1 because its the 1.
Plug in the x-value from the 1st ordered pair to x1 because its the 1.
Now you have 0-5/5--5
In this situation, you have 2 minus signs.
2 minus = 1 positive.
Now you have 0-5/5+5
Simplify.
Now you have -5/10.
Simplify.
-1/2.
Hope this helps!
For smart ppl who are good at graphs, inputs, and outputs.
Answer:
I believe the output is f(6) is -1, the output of f(2) is -4, and f(x)=-4 has the outputs of 2, 4, 8, and 10.
I think.