Answer:
70
Step-by-step explanation:
Answer:
x/100 x 30 = 21 (solve for x) x =70
I wish I could explain more but if your just lazy to do this i wont explain but if you honestly dont know I will explain, so solve for x you must multiply by a 100 on both sides and on the right side you multiply it to the fraction so x/100 x 100 = x (variable by itself means 1) then 21 x 100 = 21,000 therefore you are left with 30x since you are multiplying x and 30 together then you will divide by 30 on both sides to get x = 70
Work out the size of an exterior and an interior angle of a regular 20-sided polygon.
Answer
Exterior,18°
Interior,162°
Step-by-step explanation:
To calculate exterior,360°÷no of sides, i.e
360°÷20=18°
Interior is gotten by 180°-exterior angle
180°-18°=162°
1 divided by 4 = ?
giving brain
Answer:
0,25
Step-by-step explanation:
Answer:
0.25 or 1/4
Step-by-step explanation:
Please answer correctly !!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!
Answer:
15
Step-by-step explanation:
As we can see, we have the total ratio as;
5 + 2 + 1 = 8
Total of NQ is 24
The ratio accorded to NO is 5
so we have the length of NO as;
5/8 * 24 = 15
Ms. F arrived at the Wizarding World of Harry potter at 9:12 am. It took her 1 hour and 16 minutes to get there from leaving her house. What time did she leave her house?
Answer:
She left her house at 7:56 am
Step-by-step explanation:
3x 2+ 4x - 20
using a area model.
Answer:
3x2+4x-2o= 12 metros se for quadrado se não será diferente a resposta
a small dog’s heart beats about 530,000,000 times during its lifetime, and a large dog’s heart beats about 1.4 times this amount. What is the approximate number of heartbeats in the lifetime of a large dog?
Answer:
I think the answer is 742,000,000
Step-by-step explanation:
The approximate number of heartbeats in the lifetime of a large dog is 742,000,000 times.
What is unitary method?Unitary method is a process by which we find the value of a single unit from the value of multiple units and the value of multiple units from the value of a single unit.
According to the question
A small dog’s heart beats about during its lifetime = 530,000,000 times
A large dog’s heart beats about 1.4 times this amount.
i.e A large dog’s heart beats about during its lifetime = 530,000,000 *1.4 times
= 742,000,000 times
Hence, the approximate number of heartbeats in the lifetime of a large dog is 742,000,000 times.
To know more about unitary method here:
https://brainly.com/question/19423643
#SPJ2
pleaseeeee I needdd help, please
find x value using the quadrants
sinx = ( - sin²x + cos²x)
Answer:
Step-by-step explanation:
sin²x+cos²x = 1. No Matter What is the value of x. For Explanation: Sin x is opposite_side/hypotenuse of a Right angle triangle. Cos x is adjacent_side/hypotenuse of a Right angle triangle.
An animal trainer at the aquarium
trains bottlenose dolphins to jump
for performances. One dolphin
jumped out of the water at a height
of 15 feet and then dove back under
the water to a depth of 20 feet. Write
an expression to represent the vertical
distance the dolphin traveled. What is
the vertical distance?
Answer:
15 up plus 20 down= 35 feet.
Step-by-step explanation:
15+20=35
PLEASE HELP QUICKLY I WILL MARK YOU BRAINLIEST.
Mr. Rector and Ms. Mitchell are grading papers. Mr. Rector can grade 24 papers in 10 minutes. Ms. Mitchell can grade 30 papers in 8 minutes. How many more papers per minute can Ms. Mitchell grade?
Answer: 1.35
Step-by-step explanation:
Answer:
1.35
Step-by-step explanation:
We need to identify our independent variables and dependent variables.
The number of papers graded depend on the amount of time.
The amount of time is the independent variable
The papers graded depends us the dependent variable
Divide the independent variable by the dependent variable to find papers per minute
For Ms.Mitchell the papers per minute is
For Mr.Rector, the papers per minute is
Subtract 2.4 from 3.75.
The answer is 1.35
What is the Pythagorean Theorem
Answer:
see below
Step-by-step explanation:
The Pythagorean theorem is for right triangles. It uses the two legs and the hypotenuse
a^2 + b^2 = c^2 where a and b are the legs and c is the hypotenuse
Answer:
u see this is how the Pythagorean theorem works a^2 + b^2 = c^ i hope this helps have a great day bye please mark as brainliest :D
Step-by-step explanation:
Question 13 (1 point)
(07.05 MC)
What is the solution to the equation 4x + 2(x - 2) = 4x + x - 12? (1 point)
O 1) -8
2) -1
3) 1
04) 8
Answer:
-8
Step-by-step explanation:
4x+2(x-2)=4x+x-12
4x+2x-4=5x-12
6x+2x-4=5x-12
x-4=-12
x=-8
Tyesha found that the z-statistic was 2.1 and that the critical z-values were -1.96 and 1.96. Which of the following is a valid conclusion based on these results?
One can reject the null hypothesis.
One can reject the alternate hypothesis.
One can accept the null hypothesis.
One cannot accept or reject the null hypothesis.
Answer:
Step-by-step explanation:
If the z statistic does not lie within the critical region, you cannot reject the null hypothesis but neither can you necessarily accept it.
What you can do is reject the alternate hypothesis.
The valid conclusion based on the given results is; One can reject the alternate hypothesis.
What is the Conclusion of the Hypothesis?We are told that;
z-statistic = 2.1
Now, the critical z-values were -1.96 and 1.96
Since our z-statistic does not lie within the critical values region, it means that there is not enough evidence to reject the null hypothesis at the given significance level. However, it means that we can reject the alternate hypothesis.
Read more on hypothesis conclusion at; https://brainly.com/question/15980493
5d = 75 d =
94 = g + 32 g =
Answer:
5d = 75 d = 0
i dont know how to do 94 = g + 32 g = sorry
Step-by-step explanation:
Sergei's car was clocked in a quarter mile race at 146.67 miles per hour.
How many feet per second is this to the nearest hundredth if there are 5280 feet in one mile?
A. 29.33 feet per second
B. 35.99 feet per second
C. 215.12 feet per second
D. 733.35 feet per second
E. 860.48 feet per second
Answer:
C. 215.12 feet per second
Step-by-step explanation:
Sergei's car was clocked in a quarter mile race at 146.67 miles per hour.
How many feet per second is this to the nearest hundredth if there are 5280 feet in one mile?
From the above question
1 mile = 5280 feet
1 hour = 60 minutes
1 minutes = 60 seconds
1 hour = 60 × 60 seconds = 3600 seconds
We are to convert 146.67 miles per hour = feet per second
Hence:
146.67 miles /1 ft × 5280 feet/1 miles × 1 hr/3600 seconds
= 146.67 × 5280 feet/3600 seconds
= 774417.6 feet / 3600 seconds
= 215.116 feet per second.
Approximately = 215.12 feet per second
Option C is correct
Can someone teach me how to solve this
28.9
Step-by-step explanation:
Multiply the denominator by the number on the other side. This will give you 28.9 as t. To check your work, divide 28.9/8.5. This will give you 3.4.
Determine the radius of the circle below.
Answer:
r = 22.629
Step-by-step explanation:
Using the Pythagorean theorem:
(35 + r)² = 53² + r²
1225 + 70r + r² = 2809 + r²
subtract r² from each side of the equation:
1225 + 70r = 2809
subtract 1225 from each side:
70r = 1584
r = 22.629
Alyssa drives 10 miles in 20 minutes. If she drove one hour in total at the same rate, how far did she go?
Answer:
30 miles
Step-by-step explanation:
1 hour = 60 min
60 divided by 20= 3
30 times 10 = 300.
Answer:
She would go 30 miles
This is the answer because 20 minutes times 3 equals 60
which means that 10 times 3 equals 30
so your answer is 30 miles
??I need help solving this.
Answer:
H=14.25 yd
Step-by-step explanation:
PLZ HELP ME WITH THIS, I'VE BEEN STUCK ON THIS FOR A WHILE.
You sell large and small pictures at a fair. You sell a total of 16 pictures and made a total of $350. If large pictures sell for $25 and small pictures sell for $20. How many of each did you sell?
Answer:
it is blink
Step-by-step explanation:
vgftr
On a boat tour, there are half as many children as there are adults. There are 30 people on the tour.
Answer:
I dont know your question. But, im guessing how many children are there. There are 15 children on the boat tour.
Step-by-step explanation:
Half of 30 is 15.
Answer:
hay15 niños
Step-by-step explanation:
hi please help i’ll give brainliest
Answer:
3
Step-by-step explanation:
3 x (2) - (3)
Triangle Q S R is shown. Angle Q S R is a right angle. Altitude s is drawn from point S to point T on side Q R to form a right angle. Side Q S is labeled r and side W R is labeled q. The length of Q T is 10 and the length of R T is 4. What is the value of q? 4 StartRoot 5 EndRoot 2 StartRoot 14 EndRoot 20 StartRoot 5 EndRoot
*The diagram is in the attachment
Answer:
q = 2√14
Step-by-step explanation:
To determine the value of q, apply the leg rule/geometric mean theorem, which is:
Hypotenuse/leg = leg/part
Hypotenuse = 10 + 4 = 14
Leg = q
Part = 4
Plug in the values into the equation:
14/q = q/4
Cross multiply
q*q = 14*4
q² = 56
q = √56
q = √(4*14)
q = 2√14
Answer:
q = 2√14
Step-by-step explanation:
got it right on test
-3z - (-z -2) PLEASE HELP FASTTT
Ray is a member of a card club. He pays a fixed fee of $45. He must pay $6 for every game he attended. He attends 12 games. What is the total amout that he payed
Answer:
$117
Step-by-step explanation:
Create an equation to represent the situation, where x is the number of games he attended, and y is the cost
y = 6x + 45
Solve for the amount he paid by plugging in 12 as x
y = 6x + 45
y = 6(12) + 45
y = 72 + 45
y = 117
So, Ray paid $117
Which graph below shows the rule: output = 5 times input?
Given:
Output = 5 times input
To find:
The graph for the given statement.
Solution:
We know that, y-axis represents the output and x-axis represents the input.
Let y be the output and x be the input. Then the given statement can be written as
[tex]y=5x[/tex]
Here, the slope of the line is 5 because the value of [tex]m[/tex] is 5 on comparing the equation with [tex]y=mx+b[/tex].
It means the line is steeper because the vertical change is greater than the horizontal change.
Therefore, the correct option is A.
Write an equation for the hanger diagram and then us the sketch to show how to solve the equation algebraically.
WILL GIVE BRAINLEST IF ANSWERED IN 1 MINUTE OR LESS!!!!!!!!
Answer:
Answer: z * 1 =
Step-by-step explanation:
So, add da numbers to get dat
Answer:
2z + 3 = 5
Step-by-step explanation:
2z + 3 = 5 Subtract 3 from both sides
2z = 2 Divide both sides by 2
z = 1
hi please help i’ll give brainliest please
Answer:
w=1
w=0
Step-by-step explanation:
We can tell 2 is greater than 1, so it either has to be 0, or 1. W cannot be 2 because otherwise the symbol would have to be less than or equal to.
Brainliest please!
Answer:
W=1 and W=0
Step-by-step explanation:
The question is asking which values of w are less than 2 and W=1 and W=0 meet that criteria.
Todd uses white tiles and some black tiles to make mosaic the mosaic has a total area of 144 square centimeters each tile has an area of 3 square centimeters how many black tiles did Todd use
Answer:
27 tiles
Step-by-step explanation:
Here is the complete question :
Todd uses 21 white tiles and some black tiles to make a mosaic.the mosaic has a total area of 144 square centimeters. Each tile has an area of 3 square centimeters. How many black tiles did Todd use
Steps to take to determine the answer
Determine the total area of the white tiles used. This can be determined by multiplying the number of white tiles by the area of a tilesubtract the area of the white tiles from the total area of the mosaic. Divide the answer derived in the previous step by 3Area of the white tile = area of each tile x total white tiles used
3 x 21 = 63cm²
144cm² - 63cm² = 81cm²
Number of black tiles used = 81cm² / 3cm² = 27 tiles
PLEASE HELP IM SOO STUCK!!!
solve the following equation for the value of a. SHOW UR WORK!!!!
-8+7a = 3 - 4a
Answer:
-8+7a=3-4a
7a=11-4a
0=11-11a
-11=-11a
a=1
Step-by-step explanation:
hope that helped
Need help with this question.
Answer:
D.
Step-by-step explanation:
the smallest angle correpsonds with the smallest side, and longest angle with longest side. hope it helped