Solve 20% of blank = 40
Answer: 200
Step-by-step explanation:
Let the unknown number be x.
Therefore, 20%*x = 40
20% as a fraction is 1/5.
Therefore x*(1/5) = 40
Multiply both sides by 5:
x = 200
Which statement is true?
A. 30 is 3% of 100.
B. 6 is 12% of 200.
C. 15 is 30% of 50.
D. 12 is 5% of 60.
Answer:
A. 30 is 3% of 100
Step-by-step explanation:
So if 10 is 1% of 100, then 30 is 3% of 100
The radius of a circle is 6 inches. What is the area?
Give the exact answer in simplest form.
Answer: 36pi inches^2
Step-by-step explanation:
The area of a circle is equal to pi*radius^2.
We plug in 6 inches for the radius.
Therefore, the area of the circle is pi*6 inches^2 = 36pi inches^2
Solve the equation by using the quadratic formula.
3x² - 1 =5x
Answer:
There!!
Step-by-step explanation:
mark me brainliest!!
Consider the complex numbers and in the complex plane below:
Find the rectangular forms of v,w,z
and enter them in that order.
Answer:
v = √2 +√2iw = -2 -2√3i . . . ("i" is not under either radical)z = 0 -3iStep-by-step explanation:
A suitable calculator can perform polar to rectangular conversion for you. If you like to do it "by hand", the conversion is ...
(r; θ) ⇔ r·cos(θ)+ r·sin(θ)i
Your numbers translate to ...
v = √2 +√2iw = -2 -2√3iz = 0 -3i_____
Additional comment
We aren't often asked to read polar graphs. The concentric rings here are taken to be 1 unit apart. The radial lines are 15° apart. Then the various points are ...
v = 2∠45°
w = 4∠-120°
z = 3∠-90°
As you can see, the TI-84 work-alike in the attachment is able to write and understand numbers in this form. Other calculators treat complex numbers as vectors [magnitude, angle], or as coordinates with a special separator (semicolon) to indicate polar coordinates vs. complex plane coordinates: (r; θ) vs. x +iy
In any event, you need to be careful to understand the units the calculator uses for angles. In the attached, we have set the angle units to degrees. Most spreadsheets default to radians.
word problem for 3 divided by 1/2
Answer:
Step-by-step explanation:
it is 1.5 take it like that
AD ??????? so confused what the
Answer:
3.6 cm
Step-by-step explanation:
Triangle Proportionality Theorem
BD : DE = BA : AC
⇒ 6 : 10 = BA : 16
⇒ [tex]\mathsf{\dfrac{6}{10} = \dfrac{BA}{16}}[/tex]
⇒ [tex]\mathsf{BA=\dfrac{6}{10} \times16}[/tex]
⇒ BA = 9.6
AD = BA - BD
⇒ AD = 9.6 - 6 = 3.6 cm
There can be 72 students in
each grade at Miller School. The
fifth grade has 3 teachers. Mrs.
Shaw's class has 21 students.
Mr. Brown's class has 23
students. Mrs. Ralley's class has
23 students. How many more
students can enroll in fifth grade?
Answer:
5 more students caw n enroll in 5th grade
Step-by-step explanation:
21 +23 + 23 = 67
72- 67 = 5
HELP ASAP
Two angles are supplementary. The measure of the larger angle is 28 more than 3 times the measure of the smaller angle.
Find the measures of both angles.
ATQ
[tex]\\ \rm\longmapsto 3x+28+x=180[/tex]
[tex]\\ \rm\longmapsto 4x+28=180[/tex]
[tex]\\ \rm\longmapsto 4x=152[/tex]
[tex]\\ \rm\longmapsto x\approx 38[/tex]
3x+28=180-38=142Let's assume that ,
x is the smaller angle
3x+28 is the larger angle
then,
ATQ,
x + 3x+28 = 180°
4x +28 = 180°
4x = 180°-28°
4x = 152°
x = 38°
putting the value of x in the larger angle
⇢3x +28 = 3 x 38° +28° = 142°
hence , the measure of the smaller angle is 38° & the larger one = 142°
Three pounds of apples costs $1.09. How much will 11 pounds of apples cost? Round to the nearest cent.
Answer:
Step-by-step explanation:
Comment
This is a proportion question. That means that the ratios given are equal. There are 4 facts all together. 3 are given, you have to solve for the 4th. The procedure is the same every time.
Equation (proportion)
cost of apples 1.09/ Number of apples (3) = cost of nearly a dozen (x)/Number = 11.
1.09/3 = x / 11 Cross Multiply
3x = 1.09 * 11 Combine the right
3x = 11.99 Divide by 3
3x/3 = 11.99/3
x = 3.99
Answer
4.00 per pound
Michelle's salad uses 1ż tomatoes and
serves 3 people. Caley's salad uses
2 tomatoes and serves 5 people. Whose
salad has more tomato per person?
Answer:
if Michelle's salad use 1tomato and servers 3 people which mean if she use 2 tomatoes she will server 6 people
Step-by-step explanation:
and caley's salad uses 2 tomatoes and servers 5 people
michelle's tomatoes serves more
Simplify this problem. Leave answer in exponents.
which class are you bro I can't solve it XD
Answer:
a^7/64
Step-by-step explanation:
8^-2a^7
(8^-2 would be 1/64)
1/64a^7
(1/64 * a^7 would be 1a^7/64)
Which could be
a^7/64
10. How would you describe an Obtuse triangle?
a. It has an acute angle which measures less than 90°
b. It has an obtuse angle which measures less than 90°
c. It has an obtuse angle which measures greater than 90°.
d. It has an acute angle which measures greater than 90
Answer:
c
Step-by-step explanation:
an obtuse angle is an angle which is greater than 90° but less than 180° so an obtuse triangle will have an angle that measures greater than 90
Answer:
c. It has an obtuse angle which measures greater than 90°.
Step-by-step explanation:
An obtuse angle is any angle greater than 90°, and an obtuse triangle is a triangle in which one of the angles is an obtuse angle.
500 apples are taken at random from a large basket and 50 are found to be bad. Estimate the proportion of bad apples and assign limits within which the percentage most probabilities lies
Answer:
Step-by-step explanation:
probability = 50/500= 1/10
which means that there is probability of 1 Apple will be bad from 10 apples.
What is the length of the radius of the circle?
Answer:
There is none, there is no length of a circle
Step-by-step explanation:
What is 80% of 160
(math homework ☹️)
Answer:
128
Step-by-step explanation:
1.28 x 10^2,2^7
80% x 160 =128
Hope this helps mark me brainlist if possible
Answer:
128
Step-by-step explanation:
(80/100)*160
or
(80*160)/100
12800/100=128
A student orders food from the menu shown below he orders 1 hotdog 1 popcorn 3 bags of chips and one soda how much money did he spend
(1 hotdog : 1.75)
( 1 popcorn : 1.25)
(3 bags of chips : 0.75)
(One soda : 1.50)
Answer:
1.75 + 1.25 + 1.50 + .75(3) = $6.75 total
Step-by-step explanation:
Make sure to multiply .75 x 3 because there are 3 bags of chips. That gives you $2.25 in chips to add to the hotdog, popcorn, and soda total.
Other than itself, which angle is congruent to
EAI
Two sides of a rectangle are 7cm and 9cm respectively. What is the range of the possible length of the third sides?
Answer:
Step-by-step explanation:
9 - 7 < length of 3rd sides < 9 + 7
so the range is greater than 2 cm and less than 16 cm
On the map below, all numbered streets run parallel to each other. Both 3rd and 4th streets are intersected by King Avenue.
A delivery driver is driving around town and has noticed that every time he turns, it creates an angle. What are the measures of Angles X, Y, and Z on the map?
In your answer, give the measures of angles X, Y, and Z, and explain how you calculated each one.
Answer:
x=105, y=75 and z=105.....this is a map of parallellines and a transversal. ....angles x and 75 are supplementary angles x=180-75 ×=105...angles y and 75 are corresponding angles so, y=75..angles x and z are alternate exterior angles z=x
NEED AN ANSWER NOW!
Write >, =, or < for each __.
64 in __ 5 ft
2 mi __ 3,333 yd
36 yd 2 ft __ 114 ft 2 in
Which measure is less than 435 in?
A. 37 ft
B. 36 ft 10 in
C. 12 yd 3 in
D. 12 ft 3 in
Answer:
64 in > 5 ft
2 mi < 3,333 yd
36 yd 2 ft > 114 ft 2 in
D
Step-by-step explanation:
that should be right
what is 15% of 900? please help
also see comments
Answer:
135
Step-by-step explanation:
Multiply .15 by 900
0.15 x 900 = 135
Hope this helps :)
Answer:
135
Step-by-step explanation:
To find 15% of a number, we can find 10% first then 5%
10% of 900 is 90 (900 ÷ 10 = 90)5% of 900 is 45 (half of 10% of 90)Therefore, 15% of 900 is 135We can also turn 15% into a decimal by dividing 15 by 100: 15 ÷ 100 = 0.15 Now, we can treat 'of' as × and do 0.15 × 900 which is 135.
Hope this helps!
Pls help on this question pls
Answer:
42b -7.5
Step-by-step explanation:
Find the slope of the line through the pair of points: (3,4)and (0,2)
Step-by-step explanation:
To find the slope, we'll use this formula:
[tex] \frac{y2}{x2} - \frac{y1}{x1} = m[/tex]
m will represent our slope.
Use the first point as the second in the formula, as we'll subtract for the correct slope.
Substitute the 2 given points into the formula format:
[tex] \frac{4}{3} - \frac{2}{0} = m[/tex]
Subtract:
[tex] \frac{2}{3} = m[/tex]
The slope is 2/3.
Answer:
[tex]\boxed{\sf{\dfrac{2}{3} }}}[/tex]
Step-by-step explanation:
A slope formula is all you need to use to find the slope.
Slope:
[tex]\sf{\dfrac{Y_2-Y_1}{X_2-X_1} }[/tex]
y2=2
y1=4
x2=0
x1=3
Rewrite the problem.
[tex]\sf{\dfrac{2-4}{0-3} }[/tex]
Then, solve it.
[tex]\sf{\dfrac{2-4}{0-3}=\dfrac{-2}{-3}=\boxed{\sf{\dfrac{2}{3} }}} }[/tex]
As a result, the slope is 2/3, which is our answer.
I hope this helps you! Please let me know if my answer is wrong or not.
Please help
If the m∠A is 33° and m∠D is 27°, determine the measure of the following:
Answer:
See below
Step-by-step explanation:
By inscribed angle theorem:
measure of intercepted arc is equal to twice the measure of its corresponding inscribed angle.
[tex]\implies[/tex]
[tex]arc\: AC = 2(27\degree) =\boxed{\purple{54\degree}}[/tex]
[tex]arc\: BD = 2(33\degree) =\boxed{\red{66\degree}}[/tex]
[tex]arc\: CB= 180\degree-(54\degree+66\degree)[/tex]
[tex]\implies arc\: CB= 180\degree-120\degree[/tex]
[tex]\implies arc\: CB= \boxed{\blue{60\degree}}[/tex]
£245 increased by 25%?
Answer:
306.25
Step-by-step explanation:
What you need to do is multiply 245 by .25 (the decimal form of 25%). Then you should get 61.25, which is what the increase would be. Then, using the product, add 245 with 61.25 and you'll get the answer.
(Hope this helps)
Answer:
61.25 Euro
Step-by-step explanation:
Hopefully this is right. I'm American so I had to do a little converting with the currency. How you solve it is you multiply 245 by 25 and then divide by 100. Whenever percentage is involved think of the butterfly method.
[tex]x/250=25/100[/tex]
In this problem X is what you're trying to solve for; what the number will be AFTER the increase. The denominator will always be the original amount/price. Then on the other side you put the percentage over 100, since percentages go from 0% to 100%, kinda like quarters.
Write the inequality this number line represents.
Answer:
x > 10
Step-by-step explanation:
the dot isn't filled, meaning x can't equal 10. it goes up, meaning x is greater than 10 :) hope this helps
The population of small town grew from 4732 to 5967 from
2009 to 2015.
All rounding should be to the nearest thousandth.
A) Assuming exponential growth, write a function to model the
situation.
Define appropriate variables. (3 points)
B) When will the population of this town reach 9000?
Answer:
the small town grew to 2022
please use an equation step by step and please show the numbers do not use words
Answer:
Sorry but u need another photo i can't see
56 is 80% of what number? Use the percent equation
Answer:
70
Step-by-step explanation:
56 = .80 · x
divide both sides by .8
Answer:
70
56= 0.8 *x is the equation