Step-by-step explanation:
14/17 is 0.82352941176
To the nearest tenth is 0.8
y = –5x + 30 x = 10 What is the solution to the system of equations? (–20, 10) (10, –20) (10, 4) (4, 10)
Answer:
(10, –20)
Step-by-step explanation:
y = –5x + 30
y = -5(10) + 30
y = -50 + 30
y = -20
Is this a function or not ?
Answer:
No, this is not a function as the curve is inappropriately drawn and the presence of variables is absent.
A bookstore sells books at a profit of at least 15% of the final selling price. The store buys a certain book at a cost of £17. If the store gives students a 20% discount, what should the selling price of the book before the discount be?
The Selling Price of The Book before discount will be 20
Estimate the mean exam score for the 50 students in Prof. Burke's class.
Score
f
40 but less than 50
21
50 but less than 60
39
60 but less than 70
40
70 but less than 80
34
80 but less than 90
28
Total
162
Group of answer choices
65.56
63.78
64.89
62.34
The mean of the exam score is 65.56
The given exam data is as follows;
Possible Score range ----------- frequency (f) -------- score (x) -----------(fx)
40 - 50 ------------------------- 21 ------------------- -----45 -------------- 945
50 - 60 --------------------------- 39------------------------55 ---------------2145
60 - 70 ----------------------------- 40---------------------- 65 ---------------- 2600
70 - 80 ------------------------------ 34 --------------------- 75 ----------------- 2550
80 - 90 ------------------------------ 28 --------------------- 85 ---------------- 2380
Note:[tex]score (x) = \frac{sum \ of \ the \ range }{2} , \ example \ \frac{40+49.99}{2} \approx 45[/tex]
The sum of the frequency (f) = 162
The sum of fx, ∑fx = 10620
The mean of the exam score:
[tex]\bar x = \frac{\Sigma fx }{\Sigma f} = \frac{10620}{162} = 65.56[/tex]
Therefore, the mean of the exam score is 65.56
To learn more about grouped mean calculation please visit: https://brainly.in/question/20735794
what is the importance of mathematics?
Solve for x
Answer choices:
4
5
8
3
2
Answer:
4
Step-by-step explanation:
You need to find XYW
<xYW = <XYZ - <WYZ
<XYW = 128 - 85
<XYW = 43
12x - 5 = 43 Add 5 to both sides
12x = 43 + 5
12x = 48 Divide by 12
x = 48/12
x = 4
In what time will Rs. 6400 amount to Rs. 7152 at the rate of 6% p.a?
Amount of Interest=7152-6400=752=I
Principal=6400=PRate of interest=6%=RTime=T=?We know
[tex]\boxed{\sf I=\dfrac{PRT}{100}}[/tex]
[tex]\\ \sf\longmapsto T=\dfrac{PR}{100I}[/tex]
[tex]\\ \sf\longmapsto T=\dfrac{6400(6)}{100(752)}[/tex]
[tex]\\ \sf\longmapsto T=\dfrac{38400}{75200}[/tex]
[tex]\\ \sf\longmapsto T\approx 0.5year[/tex]
[tex]\\ \sf\longmapsto T\approx 6months[/tex]
What will be the reciprocal of 4/9 × 45/36
Answer:
[tex]\frac{9}{5}[/tex]
Step-by-step explanation:
[tex]\frac{4}{9}[/tex] × [tex]\frac{45}{36}[/tex]
= [tex]\frac{4}{9}[/tex] × [tex]\frac{5}{4}[/tex] ( cancel 4 on numerator/ denominator )
[tex]\frac{5}{9}[/tex]
Given a number n then its reciprocal is [tex]\frac{1}{n}[/tex]
Then the reciprocal of [tex]\frac{5}{9}[/tex] is
[tex]\frac{1}{\frac{5}{9} }[/tex] = [tex]\frac{9}{5}[/tex]
How to write this sum 24,6 in expanded notation
Answer:
2.46×10
Step-by-step explanation:
24.6
2.46 ×10
.....................
The circumference of a circle is 40.8 centimeters.
What is the area of the circle, rounded to the nearest tenth? Use 3.14 for ft. Enter the answer in the box.
Answer:
132.54cm²
Step-by-step explanation:
We can use the formula [ C²/4π ] to solve.
= 40.8²/4π
= 1,664.64/12.56
≈ 132.54cm²
Best of Luck!
1. Convert the following fractions into percent. a. 6 by 7
Answer:
6/7 =
6 ÷ 7 ≈0.857142857142857
Please answer in less then 5 mins
Answer: It's probably going to be C. Just a hunch!
If you half a half, you will have 2 pieces.
THIS IS JUST A GUESS! THINK BEFORE YOU RISK!
Answer:
Its C
Step-by-step explanation:
because assume you have 2 squares, having the 1/2 is like cutting a square into 4 pieces.
75 24 by 6 =
75 is in power of zero while 24 is in power of 1
a) 12 43 b) 13 82 C) 24 72
Answer:
hey is 74^0 is multiply by 24^0 and both of these are divided by 6
Given the linear function f(x) 2/3x + 6 evaluate f(-6)
the answer is on the photo
Find the value of x in each case:
9514 1404 393
Answer:
x = 45°
Step-by-step explanation:
The triangle interior angle at I will be the supplement of the angle marked 2x. The triangle interior angle at G will be equal to x, the alternate interior angle with respect to transversal GI crossing the parallel lines.
The angle marked 3x is the sum of these "remote" interior angles:
3x = 180 -2x +x
4x = 180 . . . . . . . . . add x; next, divide by 4
x = 180/4 = 45 . . . . . degrees
x = 45°
Solve this problem:
5X +8 = 53
5X + 8 = 53
5X = 53 - 8
X = 45 / 5
X = 9
Answer:
X=9
Step-by-step explanation:
5X+8=53
To solve this we need to make X the subject of the equation that means X should be alone on one side of the equation. Taking the following steps
5X=53-8
5X=45
X=45/5
X=9
surface area of a prism please help its my last day 120 points
Answer:
Area of the base = (8×6)/2 = 24 yd²
Height of the prism = 8 yd
Perimeter of the base = 8+6+10 = 24 yd
Surface area = 2B + Ph = (2×24)+(24×8) = 48+192 = 240 yd²
467,768 round it to
the hundreds place
Answer:
467,800
Step-by-step explanation:
When nearing to the hundred you look at the number 6. It’s greater than 5 so the previous number 7 turns into 8 and the numbers 6 and 8 became 0.
The answer is 467,800
pls answer and you will be blessed :)
Answer:
2
Step-by-step explanation:
It is the only one that makes sense
Which points are on the graph of a linear function? Select all that apply.
(-1, 7), (0,5), (1,3)
(-1, 1), (0, 0), (1, 1)
(0,5), (2,5), (3, 14)
(0, -3), (2, 5), (4, 13)
Answer:
Step-by-step explanation:
(-1,7), (0,5), (1,3)
and
(0,-3), (2,5), (4,13)
A=(1)/(2)h(b_(1)+b_(2)) solve for h
Answer:
[tex]A = \frac{1}{2}h(b_1+b_2)\\2A = h(b_1+b_2)\\h = \frac{2A}{b_1+b_2}[/tex]
A log of wood weighs 120kg. After drying, it now weighs 80kg. Find the moisture content of the wood in percentage.
Answer: 33% is moisture content
Step-by-step explanation:
120kg - 80kg = 40kg
40 of 120 is %
Work:
40/120 = 0.33
0.33x100
= 33%
in the similarity transformation of ABC to DEF ABC was dilated by a scale factor of ? reflected across the ? and moved through the translation ?
Answer:
Does the answer help you?
Complete the equation describing how x
and y are related.
х
у
y = -0.5x + [?]
0 -1
1 -1.5
2.
-2
3 1-2.-5
4 -3
5 -3.5
Enter the answer that
belongs in [?]
Answer:
y=-0.5x-1
Step-by-step explanation:
To complete the equation, we need the y intercept. The y intercept is at x=0, y=-1
The equation of the line is y = -0.5x - 1.
What is the slope of the line?The slope of the line is defined as the angle of the line. It is denoted by m
Slope m = (y₂ - y₁)/(x₂ -x₁ )
Consider two points on a line—Point 1 and Point 2. Point 1 has coordinates (x₁,y₁) and Point 2 has coordinates (x₂, y₂)
Given,
To determine the equation, we need the y intercept. The y intercept is at x = 0, y = -1
The line passes through the points (0, -1) and (4, -3)
Let
x₁ = 0 y₁ = -1
x₂ = 4, y₂ = -3
∵ Slope m = (y₂ - y₁)/(x₂ -x₁ )
Substitute values in the formula
m = (-3-(-1))/(4-0)
m = (-3+1)/(4)
m = -2/4
m = -1/2
Let the line (y - y₂) = m(x -x₂ )
Substitute the values in the equation,
So, y-(-3) = -1/2(x-4)
y + 3 = -1/2x +2
y = -0.5x + 2 - 3
y = -0.5x - 1
The equation of the line is y = -0.5x - 1.
Thus, the missing number is - 1.
Learn more about Slope of Line here:
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in figure , EF=1 and FC=2 What is the length of AC?
Step-by-step explanation:
ae=ec
ec=1+2=3
then ae=3
Answer:
6-most likely (AC=6)
Step-by-step explanation:
Because the 2 sides, AE and EC *look the same. Also you can look at the opposite sides.
*This is what I think
What is the average selling price
118,450
126,500
128,000
130,425
135,950
Answer:
A
Step-by-step explanat
Dividing integers
7. (-154) ➗ (-14) =
11. (-40) ➗10=
15. 90 ➗ (-15)=
16. 108 ➗ (-9)=
17. (-48) ➗ (-6)=
18. (-105) ➗ 7=
first we shall learn the rules.when numbers with same sign are divided it gives pisitive sign but, when numbers of different signs are divided it gives negetive sign.
first we shall learn the rules.when numbers with same sign are divided it gives pisitive sign but, when numbers of different signs are divided it gives negetive sign.here,
first we shall learn the rules.when numbers with same sign are divided it gives pisitive sign but, when numbers of different signs are divided it gives negetive sign.here,7. (-154) ➗ (-14) =11
first we shall learn the rules.when numbers with same sign are divided it gives pisitive sign but, when numbers of different signs are divided it gives negetive sign.here,7. (-154) ➗ (-14) =1111. (-40) ➗10=-4
first we shall learn the rules.when numbers with same sign are divided it gives pisitive sign but, when numbers of different signs are divided it gives negetive sign.here,7. (-154) ➗ (-14) =1111. (-40) ➗10=-415. 90 ➗ (-15)=-6
first we shall learn the rules.when numbers with same sign are divided it gives pisitive sign but, when numbers of different signs are divided it gives negetive sign.here,7. (-154) ➗ (-14) =1111. (-40) ➗10=-415. 90 ➗ (-15)=-616. 108 ➗ (-9)=-12
first we shall learn the rules.when numbers with same sign are divided it gives pisitive sign but, when numbers of different signs are divided it gives negetive sign.here,7. (-154) ➗ (-14) =1111. (-40) ➗10=-415. 90 ➗ (-15)=-616. 108 ➗ (-9)=-1217. (-48) ➗ (-6)=8
first we shall learn the rules.when numbers with same sign are divided it gives pisitive sign but, when numbers of different signs are divided it gives negetive sign.here,7. (-154) ➗ (-14) =1111. (-40) ➗10=-415. 90 ➗ (-15)=-616. 108 ➗ (-9)=-1217. (-48) ➗ (-6)=818. (-105) ➗ 7=-15
first we shall learn the rules.when numbers with same sign are divided it gives pisitive sign but, when numbers of different signs are divided it gives negetive sign.here,7. (-154) ➗ (-14) =1111. (-40) ➗10=-415. 90 ➗ (-15)=-616. 108 ➗ (-9)=-1217. (-48) ➗ (-6)=818. (-105) ➗ 7=-15hope it helps you...........
find two number nearest to 8888888 which are exactly divisible by 2915
Step-by-step explanation:
Given problem is to find nearest number,
= 8888888/2915
quotient = 3049
remainder= 1053
Now, 2915-1053 = 1862
8888888+1862 = 8890750
8888888-1053 = 8887835
Two numbers nearest to 8888888 which are exactly divisible by 2915 is 8887835 and 8890750
HELP ASAP
The figure shows two parallel lines AB and DE cut by the transversals AE and BD.
Which best explains the relationship between triangle ABC and triangle EDC?
Answer
its the first one
Step-by-step explanation:
please help me fast!
9514 1404 393
Answer:
B) 40
Step-by-step explanation:
Vertical angle XZU has the same measure as the given angle, 130°. It is equal to the sum of right angle XZV and unknown angle UZV. So, ...
∠UZV +90° = 130°
∠UZV = 40° . . . . . . . . . subtract 90°
