Answer: 30%
Step-by-step explanation:
First find the difference between the old score and the new:
= 390 - 300
= 90 points
To find the percentage increase, divide the difference by the original score:
= 90 / 300
= 30%
Daryl can jump 2 1/2 yards. Sarah can jump 8 feet and Michelle can jump 72 inches.Which statement is true?
Find the mean of the data given.
Number of the children in 6 families: 4, 0, 3, 6, 3, 2
The mean number of the children in the 6 families is ?
Answer:
The mean number of children is 3.
Step-by-step explanation:
The mean of the data is 3
What is mean?Mean is the average of the given numbers and is calculated by dividing the sum of given numbers by the total number of numbers.
Mean = (Sum of all the observations/Total number of observations)
The mean of the given data will be:
[tex]Mean =\frac{4+0+3+6+3+2}{6} \\\\=\frac{18}{6}\\ \\=3[/tex]
To learn more about mean: https://brainly.com/question/13451489
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You start at (6, 7). You move right 3 units. Where do you end?
Answer:
(9, 7) is where you would end
Step-by-step explanation:
We know that;
x-value = 6
y-value = 7
We also know that by moving 3 units right u will add 3 to the x-value, therefore;
Final x-value = 6 + 3 = 9
Final y-value = 7 (there is no change)
Final coordinates: (9, 7)
Hope this helps!
A car dealership decides to select a month at random for its annual sale find the probability that it will be July or October
Answer:
Step-by-step explanation:
there are 12 posible months in a year and 2 months ( July and October )when the sale might happen.
P= 2/12 = 1/6
Please help I’ll give brainliest
Answer:
25 chords
Step-by-step explanation:
First, set up the ratio 40:8.
Now, make a proportion.
[tex]\frac{40}{8}[/tex]=[tex]\frac{x}{5}[/tex]
This proportion will give you x=25, so your answer is 25.
Hope this helps! Have a great day! :)
Answer:
she will play 31 chords
Step-by-step explanation:
Plz answer quickly will mark brainless
16 x 7 = (10x7) + (6 x p)
Given: x + 3.8 > -10.02.
Choose the solution set.
Answer:
x > -13.82
Step-by-step explanation:
The first step in finding the solution set is to subtract 3.8 from both sides of the given inequality:
x > -10.02 - 3.8. or
x > -13.82
Johnny took a math quiz last week. He got 9 problems correct and 11 problems incorrect. What percentage did Johnny get correct?
Answer:
The answer is 45%
Step-by-step explanation:
9+11=20
9/20
=4.5/10
=45/100
=45%
Please help me. This is URGENT. I really need help,
Answer:
39 ovoid it e fifty from ff
Step-by-step explanation:
39
expanded form - 345688 , 5682003
Answer:
[tex]\huge\boxed{Answer\hookleftarrow}[/tex]
[tex]{\boxed{\boxed{\tt { ✎ \ 345688}}}} \ [/tex]
⇻ 300000 + 40000 + 5000 + 600 + 80 + 8
[tex]{\boxed{\boxed{\tt {✎ \ 5682003}}}} \ [/tex]
⎇ 5000000 + 600000 + 80000 + 2000 + 0 + 0 + 3
ʰᵒᵖᵉ ⁱᵗ ʰᵉˡᵖˢ
∠E and ∠F are vertical angles. If m∠E=(5x+55)° and m∠F=(11x-53)°, find m∠E
Answer:
145° = m∠E
Step-by-step explanation:
Vertical Angles: always congruent, therefore, to find Angle E first find "x" ;
5x + 55 = 11x - 53
55 = 6x - 53
108 = 6x
108/6 = x
18 = x
Now that we know x-value is 18, u can substitute that in for the equation for Angle E for "x";
=> 5(18) + 55 = m∠E
=> 145° = m∠E
Hope this helps!
what is the pattern to 1,2,4,7,11
Answer:
1+1=2
2+2=4
4+3=7
7+4=11
so the patter is number + natural numbers (serially)
Step-by-step explanation:
What is the distance to the nearest tenth of a unit between point H ( -4,6 ) and point I ( 2,-3 )
Answer:
10.81 units
Step-by-step explanation:
Given data
point H ( -4,6 ) and point I ( 2,-3 )
x1= -4
y1=6
x2= 2
y2=-3
The formula for the distance between two points is
d=√((x_2-x_1)²+(y_2-y_1)²)
d=√((2-(-4))²+(-3-6)²)
d= √(2+4)²+(-9)²)
d= √(6)²+(-9)²)
d= √36+81
d=√117
d= 10.81 units
Hence the distance between the points is 10.81 units
What are the solutions of this quadratic equation?
6x^2 + 6 = 12x + 18
A. x = 1 ± √3
B. x = 2 ± 2√3
C. x = 2 ± √6
D. x = -1 and x = 3
The Answer Is: A. x = 1 ± √3
Question 2
Which of the following sets of numbers could represent side lengths of a right triangle?
6m, 10m, 16m
06m, 8m, 10m
6m, 8m, 9m
6m, 6m, 11m
The lengths of two sides of a right triangle are given. Find the length of the third side. Round to the nearest tenth if necessary.
leg: 20 m; hypotenuse: 25 m
10.5 m
8.9 m
15 m
32 m
Answer:
the answer is third option
because, 20²+x²=25²
x²=625-400
x²=225
X=15mWhich of the following are roots of the polynomial function
Answer:
its a and b
Step-by-step explanation:
A square based pyramid has a square base and ________ triangular sides.
I need help with this one
Answer:
4 triangular sides
Step-by-step explanation:
if r = 1 and 0 = 7pi /6 what is the approximate arc length
0 = theta
A.)1.75
B.)5.498
C.)21.991
D.)7.330
Answer:
[tex]l = 3.66[/tex]
Step-by-step explanation:
Given
[tex]r =1[/tex]
[tex]\theta = \frac{7\pi}{6}[/tex]
Required
The arc length (l)
This is calculated as:
[tex]l= r\theta[/tex]
So, we have:
[tex]l = 1 * \frac{7\pi}{6}[/tex]
[tex]l = \frac{7\pi}{6}[/tex]
So, we have:
[tex]l = \frac{7*3.14}{6}[/tex]
[tex]l = 3.66[/tex]
None of the options is correct
y=-5(-4)^2 - 40(-4) + 10
Answer:
Step-by-step explanation:
y=-5(16)-160+10
y=-80+160+10
y=90
Last year I read 120 books. This year I want to increase that by 55%.
How many books should I read this year?
Answer:
186?
Step-by-step explanation:
What is the midpoint
(-9,8) and (-4,-2)
What is the surface area of this rectangular prism? 64 cm 35 cm 42 cm
Answer:
bbbbbbbbbbbbbbbb
Step-by-step explanation:
The measure of angle 5x/6 is . The equivalent measurement in degrees is
Answer:
17
Step-by-step explanation:
The piper family arrived at the campground at the time shown on the clock. I took the family 2 hours and 15 minutes to get to the campground. What time did the family leave their house?
Answer:
As you included no picture, I do not know the time on the clock. We can however, work with assumed figures which you can then relate to your question.
Assuming the time on the clock was 10:45 am, if the family took 2 hours and 15 minutes to get to the camp ground, simply subtract this from 10:45 to find out what time they arrived.
Subtract the 2 hours from 10am:
= 10 - 2
= 8am
Subtract the 15 minutes from 45:
= 45 - 15
= 30
Put that together:
= 8:30 am
They left their house at 8:30 am using this scenario.
The table shows the number of practice problems completed in 30 minutes in three samples of 10 randomly selected math students. Number of practice problems completed In 30 minutes
Sample 1 18 15 17 17 18 | 13 | 17 16 | 16 | 14 | 18 Mean = 16.2
Sample 2 21 20 18 20 19 19 20 21 21 20 Mean = 19.9
Sample 3 | 14 16 18 13 | 18 | 16 | 16 | 17 | 19 | 19 Mean = 16.6
Which statement is most accurate based on the data?
A. A prediction based on the data is reliable, because the means of samples 1 and 3 are very close together.
B. A prediction based on the data is not completely reliable, because the means of samples 1 and 3 are too close together.
C. A prediction based on the data is reliable because there are no noticeable differences among the samples
D. A prediction based on the data is not completely reliable because the meaning of sample 2 is noticeably higher than the means of the other two samples. : ))
Answer:
D
Step-by-step explanation: please give me brainlist Thanks!
I will mark you brainlest!
A figure below was made with 2 rectangles. Some side lengths are shown. What is the area of the figure in square inches?
Answer:
46 in²
Step-by-step explanation:
Type the correct answer in the box. Use numerals instead of words. If necessary, use / for the fraction bar.
is parallel to . and are perpendicular to and .
The ratio of the lengths of and is __:__
Answer:
1 : 1
Step-by-step explanation:
PQ parallel to RS
PR and PS ; perpendicular to PQ and RS
FOR parallel lines, the perpendicular line joining then are always the same ; here the 4 angles formed are all 90°
Answer:
1:1
Step-by-step explanation:
Please help! I will give Brainliest!
Who is correct?