Answer:
824.5
Step-by-step explanation:
15 points
pls help fast with all questions
thank you
Answer:
11a
[tex]3x\\ 4x\\ 10+2x\\ 12+2x[/tex]
11b
[tex]8\\ 6\\ 7\\ 6[/tex]
12
Anna is 18. Rita is 13.
13
Mark is 12.
Step-by-step explanation:
Recall that the perimeter of a shape is the sum (or total) of all the edges that make up that shape. So, for the first shape, there are three Xs. We write this as [tex]\bold{3x}[/tex] so this is the perimeter.
In the second, there are four Xs, so this is [tex]\bold{4x}[/tex].
In the third, there are two Xs and two 5s, so this is [tex]2x+(2*5)=\bold{10+2x}[/tex].
In the fourth, there are two Xs and three 4s, so this is [tex]2x+(3*4)=\bold{12+2x}[/tex].
If each is equal to 24, we can simply set them as equal to 24 and solve.
[tex]3x = 24\\\bold{x=8}[/tex]
----
[tex]4x=24\\ \bold{x=6}[/tex]
----
[tex]10+2x=24\\2x = 14\\\bold{x=7}[/tex]
----
[tex]12+2x=24\\2x=12\\\bold{x=6}[/tex]
If Anna is 5 years older than Rita, then [tex]a=r+5[/tex]. If their sum is 31, then [tex]a+r=31[/tex]. We can perform some substitution:
[tex](r+5)+r=31\\5+2r=31\\2r=26\\r=13[/tex]
Therefore, Rita is 13. Keep going:
[tex]a=r+5\\a=13+5\\a=18[/tex]
Anna is 18.
If Dad is three times as old as Mark, then [tex]d=3m[/tex]. If the sum of their ages is 48, then [tex]d+m=48[/tex]. We can perform some algebra:
[tex]d+m=48\\m=48-d\\d=3(48-d)\\d=144-3d\\4d=144\\d=36[/tex]
Dad is 36. Keep going:
[tex]d=3m\\36=3m\\m=12[/tex]
Mark is 12.
Now that you've seen these, you do the bonus ;)
Convert the following statement into an expression and then find its solution for m = -1. “8more than 4 times a number m”
when you run, your average step length is 42 inches. how many steps would you take to run 1 mile 5280 feet.
Answer:
1508.5 steps
Step-by-step explanation:
brainliest
Answer:
1508.5 steps. 1509 rounded to the nearest whole number.
Step-by-step explanation:
12 inches = 1 foot
5280 × 12 in = 63,360 in
63,360 in/42 in = 1508.57142857
What is the speed if the distance is 234 MI and time is 3 hrs
Answer:
speed = 78 miles per hour
Step-by-step explanation:
Speed is distance divided by time
speed = 234 miles / 3 hours
speed = 78 miles per hour
Write the rate of decay of the function as a percent. y=12(.9)
Answer:
18
Step-by-step explanation:
Reading Off
QUIZ:
Dilations and the Coordinate Plane
A dilation with a scale factor of and centered at the origin is applied to MN with endpoints M(-2,- 4) and N(1,5).
Drag and drop to match the correct coordinates with the point
Coordinates of M'
Coordinates of N'
(5, 25
(-10,
4)
(-10, 20)
(1, 1)
8:11 AM
(1, 1)
AK 4 0 ENG
5/27/2021
( - ) E
Darell made a scale drawing if a house its lot he used the scale 1 inch: 9 feet in the drawing the backyard is 5inches wide what is the width of the actual yard
Answer:
Your answer is 45
Step-by-step explanation:
Hope this helps! :D
5.
How many 3/4 -foot-tall boxes can be stacked in one column against a wall that
is 12 feet high?
Answer:
I'm pretty sure its 16, so sorry if im wrong. Good luck!<3
why is math so hard skdbtjsjs
Answer:
I understand. I struggle with math too. But we will get through it. YOU GOT THIS!
Step-by-step explanation:
Answer:
Step-by-step explanation:
Because most people believe that mathematics is the most difficult subject in school.
How many people scored below 80?
21
18
11
12
Answer:
the answer is 11!
Step-by-step explanation:
what is 2 3/4 as a decimal?
Answer:
2.75
Step-by-step explanation:
first convert it to a improper fraction
2 3/4 = 11/4
then dividing the numerator by the denominator.
11/4 = 2.75
hope this helped!
Answer:
The answer is 2.75
2 3/4 = 11/4 = (11 × 25) / (4 × 25) = 275/100 = 2.75
Step-by-step explanation:
Hope this helps.
The population of a city of 826,000 people decreases 3% per year.
Determine what the population of that city would be after 10 years.
Answer:
588200
Step-by-step explanation:
3% of 826,000 is 24780, 24780 x 10 years is 247800
826,000-247800= 588200
Consider the following graph of y = f (x). I need help
Answer:
A.) 1 and 5
B.) -3
C.) [-1, 6]
D.) [-3, 2]
I don't know what E is
Step-by-step explanation:
Bill is selling stickers to raise money for a charity. He sold 36 stickers on the first day and 23 on the second day. He had 26 stickers left at the end of the second day. How many stickers did Bill have to start with?
Answer:
85 stickers
Step-by-step explanation:
y - 36 - 23 = 26
y - 59 = 26
y - 59 + 59 = 26 + 59
y = 85
Bill have to start with 85 stickers.
What is the unitary method?The unitary method is a method for solving a problem by the first value of a single unit and then finding the value by multiplying the single value.
If an event can occur in m different ways and if following it, a second event can occur in n different ways, then the two events in succession can occur in m × n different ways.
WE have been given that Bill sold 36 stickers on the first day and 23 on the second day. He had 26 stickers left at the end of the second day.
Then the equation would be;
y - 36 - 23 = 26
y - 59 = 26
Subtract 59 from both the sides;
y - 59 + 59 = 26 + 59
y = 85
Hence, Bill have to start with 85 stickers.
Learn more about the unitary method;
https://brainly.com/question/23423168
#SPJ2
Zoe compares the price of a sweatshirt at two stores. At Store A, the sweatshirt costs $25. A friend told her that the sweatshirt costs 30% more at Store B.
Zoe wrote the expression 25+0.3(25) to find the price of the sweatshirt at Store B.
Which equivalent expression could she also use to find the price of the sweatshirt at Store B?
A) (1+0.3)25
B) (1−0.3)25
C) 1+0.3(25)
D) 25 + 0.3
Answer:
A) (1+0.3)25
Explanation:
Zoe's expression 25+0.3(25) equals to 32.5. So the only expression that equals to 32.5 is A) (1+0.3)25.
Find the P-value for a test of the claim that more than 60% of the people following a particular diet will experience increased energy (H1: p > 0.6). Of 100 randomly selected subjects who followed the diet, 70 noticed an increase in their energy level. 2.041 1.5486 1.2743 2.536
Answer:
The p-value of the test is 0.0207.
Step-by-step explanation:
Test of the claim that more than 60% of the people following a particular diet will experience increased energy (H1: p > 0.6).
The null hypothesis is:
[tex]H_0: p = 0.6[/tex]
The alternate hypothesis is:
[tex]H_1: p > 0.6[/tex]
The test statistic is:
[tex]z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}[/tex]
In which X is the sample mean, [tex]\mu[/tex] is the value tested at the null hypothesis, [tex]\sigma[/tex] is the standard deviation and n is the size of the sample.
0.6 is tested at the null hypothesis:
This means that [tex]\mu = 0.6, \sigma = \sqrt{0.6*0.4}[/tex]
Of 100 randomly selected subjects who followed the diet, 70 noticed an increase in their energy level.
This means that [tex]n = 100, X = \frac{70}{100} = 0.7[/tex]
Test statistic:
[tex]z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}[/tex]
[tex]z = \frac{0.7 - 0.6}{\frac{\\sqrt{0.6*0.4}}{\sqrt{100}}}[/tex]
[tex]z = 2.04[/tex]
P-value of the test:
The p-value of the test is the probability of finding a sample proportion of at least 0.7, which is 1 subtracted by the p-value of z = 2.04.
Looking at the z-table, z = 2.04 has a p-value of 0.9793
1 - 0.9793 = 0.0207
The p-value of the test is 0.0207.
I'm thinking of two numbers: a and b.
The sum of my numbers (a + b) is 6.7, and their
difference (a - b) is 4.3.
What are my two numbers?
Answer:
5.5 and 1.2
Step-by-step explanation:
Answer:
a = 5.5
b = 1.2
Step-by-step explanation:
5.5 + 1.2 = 6.7
5.5 - 1.2 = 4.3
Scale factors will determine whether a shape is____ or not
Answer:
similar
Step-by-step explanation:
Hope that helps!
Answer:
Scale factors will determine whether a shape is similar or not.
Step-by-step explanation:
Take this sample from
-varsitytutors.com
"The scale factor is the ratio of the length of a side of one figure to the length of the corresponding side of the other figure. Here, XYUV=123=4 . So, the scale factor is 4 . Note that when a two-dimensional figure is enlarged ( dilated ) by a scale factor of k , the area of the figure is changed by a factor of k2 ."
Note:
I've put up an image, and a PDF file, that can prove my answer. If your computer doesn't have pdf, then go to your download, right-click, and open with chrome.
Have a nice day, and I hope this helps!
-kiniwih426
Evas mom bought a pizza Eva ate one equal part her friend ate one equal part there was one equal part left for evas mom how much of the pizza was left for evas mom
Answer:
[tex]\frac{1}{3}[/tex]
Step-by-step explanation:
1÷3= [tex]\frac{1}{3}[/tex]
Help me plss. ASAP, ty
Answer:
A) 16 / 9 B) 7/9
Step-by-step explanation:
Given
A ∆GHJ with k
GH
L on GI
are K and L the midpoints of GH and GJ respectively?
is KL || HJ?
is HJ = 2KL?
Answer:
Is there diagram for this?
Tessellations
Rotate the rectangle 90° clockwise about point T.
Please select the best answer from the choices provided
A.
B.
C.
D.
Answer:
C.
Step-by-step explanation:
I calculated it logically
Conan is moving into a two-bedroom apartment in Valley Oaks. The monthly rent is $2,000. His up-front fees
were a $60 application fee, a $20 credit check fee, first and last month's rent and a broker fee of 14% of a year's
rent.
How much can he expect to pay upfront for this apartment?
4,360
4,080
7,440
5,440
Drag the tiles to the correct boxes to complete the pairs. Not all tiles will be used.
The histogram shows the number of people in different age groups who visited Rays coffee shop on a Tuesday morning.
Number of Customers in Different Age Groups
36
30
Number of Customers
24
18
12
6
0-
15-18
27-30
19-22 23-26
Age in Years
48
30
6
60
the maximum customer age recorded in
the histogram
Answer:
The maximum customer age recorded in the hisorograhm would be 30
The differiance of 27-30 and 19-22 would be 6
The total number of cutomers would be 60
The total number of people under 23 is 42
Answer:
the number of customers less than 23 years old recorded in the histogram: 42
the difference of the number of
customers in the age groups 27–30 and
19–22 recorded in the histogram: 6
the maximum customer age recorded in
the histogram: 30
the total number of customers recorded in
the histogram: 60
Step-by-step explanation:
solve for x by completing square x^2-18x=65
Answer:
See Image below:)
Step-by-step explanation:
You can use the app photo math, you just take a picture of the question and it shows you the steps.
Sasha went shopping and decided to purchase a set of bracelets for 25% off the regular price, $44.00. If Sasha buys the bracelets today, she will save an additional 5%. Find the sales price of the set of bracelets with both discounts. How much money will Sasha save if she buys the bracelets today?
Answer: the answer is #31.35
Step-by-step explanation:
In the given polygon, AC= 5x - 24, AO= 3. Find x. NO LINKS!!!
Answer:
[tex]x=6[/tex]
Step-by-step explanation:
5x - 24 = 3 * 2
5x - 24 = 6
5x = 30
x = 6
Answer:
Solution given:
AC= 5x - 24, AO= 3.
now
since diagonal bisect each other So,
AC=2 AO
5x-24=2(3)
5x=6+24
x=30/5
x=6
Help please this is worth 50 percent
Answer:
Solution given:
Step-by-step explanation:
[tex]2 \frac{5}{6} \ + 1 \frac{2}{3} \\ \frac{17}{6} + \frac{5}{3} [/tex]
[tex] \frac{17 + 10}{6} [/tex]
[tex] \frac{27}{6} [/tex]
[tex] \frac{9}{2} [/tex]
[tex]4 \frac{1}{2} [/tex]
Option C is a required answer.
If the graph is reflected across the y-axis, what will be the equation of the new graph?
a) y=-3^-x+1
b) y=3^-x+1
c) y=-3^x-1
d) y=-3^x+1
Answer: If the graph is reflected across the y-axis it would be...
A) y=-3^x+1
Step-by-step explanation:
How many millimeters are in 3.4 liters?
Answer:
3400 milliliters
Step-by-step explanation:
