alan would take 5 hours to build the wall of a house, and gavin would take 7 hours to build it alone. when they work together, they talk a lot, and their combined output decreases by 26 bricks per hour. working together, they build the wall in 4 hours. how many bricks are in the wall?
Answer:
96 bricks
Step-by-step explanation:
Alan does 1/5 of the job in an hour. Gavin does 1/7 of the job in an hour
Together, 12/35 of the job should be done in an hour. In [tex]2 \frac{11}{12}[/tex] hours, the work should be done.
rate at 4 hours=[tex]2 \frac{11}{12}[/tex]*(normal speed-26)
To clarify, x=the normal rate
4 hours(normal rate-26)=[tex]2 \frac{11}{12}[/tex](normal rate)
4(x-26)=[tex]2 \frac{11}{12}[/tex]x
x=96
Consider the spinner divided into
8 equal sections.
A student spins the spinner 2
times. What is the probability the student spins an even number both times?
Answer:
About 25%
Step-by-step explanation:
If there are 8 selections the there are two spins
the 2 is divided by eight giving you 0.25 convert that into 25 and add the percentile so 25%.
Sorry if this is wrong. If this is right pls give brainlest.
How many cups for raisins should the hikers have used if they had w cups of peanuts? 3 cups of peanuts? 5 cups of peanuts? Explain your reasoning.
Answer:
we need 2.5 cups of raisins when there is 5 cups of peanuts.
Step-by-step explanation:
The speed of 10 cars on a certain highway stretch was recorded below. If the mean of the data is 63.2 with a standard deviation of 6.2, circle all data values with a z-score less than 0.5.
{49, 58, 60, 63, 64, 64, 65, 67, 70, 72}
Answer:
5.67
Step-by-step explanation:
How are prisms and pyramids alike and how are they different?
ALIKE:
1)
2)
DIFFERENT:
1)
2)
Answer:
Prisms have two congruent — or identical — bases, and pyramids only have one base. The shape of the base on pyramids and prisms can vary, depending on the shape of the overall three-dimensional object. A prism has two identical bases that are parallel, while a pyramid has one base.
Step-by-step explanation:
The original price of a truck is $30,100. There is a sale going on that offers 35% off. What is the total selling price of the truck?
A. $36,120
B. $31,605
C. $19,565
D. $10,535
Answer:
19,565
Step-by-step explanation:
35% of 30,100=10,535
subtract that by 30100
30100-10535=19565
quick mafss
Answer:
c
Step-by-step explanation:
original price=30100
35% off = 30100 * 35% = 30100 * 0.35 = 10535
10535 is the savings, so substract this from the original price to get new price
30100-10535= [19565]
A square scarf has a side length of 3/4 yard on each side.
What is the area of the scarf?
Enter your answer in the boxes as a fraction in simplest form.
Answer:
[tex]\frac{9}{16}\ yd.^2[/tex]
Step-by-step explanation:
Area of a square: [tex]a^2[/tex] = [tex]a*a[/tex]
[tex]A = a^2\\\\A = \frac{3}{4}* \frac{3}{4}\\\\A = \frac{9}{16}[/tex]
Therefore, the answer of the scarf is [tex]\frac{9}{16}\ yd.^2[/tex]
Hope this helps!
Which figure can be formed from the net?
Answer:
The top right one with the measurements 8mm x 8mm for the base and 10 mm for the slant height
Step-by-step explanation:
The net has a square base so that means the net forms a square based pyramid
Hope this helps :)
Answer:
The answer is the second figure on the top of the page.
Step-by-step explanation:
That's because the square is 8mm x 8mm
so the figure that has a square and 8mm x 8mm is the second one in the first row.
Please answer the question!
Down Below
Answer:
47
Step-by-step explanation:
Answer:
angle x=47
Step-by-step explanation:
a line is always 180 degrees, and angle x shares part of that angle with 133 degrees, so its as simple as 180-133=47
Find the value of a and b so that f(x)=(x-5)(a㏒ₓ3-b)
Answer:
:-p(x) = x⁴ - ax³ -3x² + 2x + bWe have to find the values of "a" and "b"Given :-(x+1) and (x-1)
Step-by-step explanation:
HELP ASAP!!! GIVING BRAINLIEST AND EXTRA POINTS!!!
1. If p || q. m∠2 = (10x+2)°, and m∠7 = (14x-50)°, find the angle measure.
Solve for m∠1, m∠2, m∠3, m∠4, m∠5, m∠6, m∠7, m∠8.
i really need help on homework please help
Answer:
ARIA= LxH/2
A= 21x8/2 = 168/2=84cm
Step-by-step explanation:
Answer:
84cm
Step-by-step explanation:
AREA= LxH/2
A= 21x8/2 = 168/2=84cm
solve for angle 1 i got an answer but i dont know if it’s right
Answer:
73
Step-by-step explanation:
72 - 35 = 107
180 - 107 = 73
107 + 73 = 180
Find the are of the composite figure.
Answer:
819
Step-by-step explanation:
to find the area of a shape you have to multiply lengths by width by height So Since this one is 7 ,13 and 9 multiply them together I think
In the figure, line e || line f. which statement is true.
Answer:
angle 3 is 70
ANGLE :> 3
IS.
70
#CARY ON LEARNINGPLEASE HELP ME WITH MY MATH
Oh my gosh,
I need an answer for that as well..
Answer:
EYYRHEHF
Step-by-step explanation:
I HAVE NO IDEA PLEASE I NEED POINTS AND WANT TO BE BRAINLIEST I NEEEED ITTT !!!!11
Write an equation that you can use to solve for x.
Enter your answer in the box.
Answer:
40 degrees
100-60=40
Step-by-step explanation:
The angle x is in another angle that looks like 100 and 100 minus 60 is 40.
Hope this helps and if it is correct.
Answer:
Step-by-step explanation:
Remark
x + 60 together make up an angle that is vertically opposite the 100 degree angle.
Vertically opposite angles are equal.
Equation
x + 60 = 100
Solution and Answer
x + 60 = 100 Subtract 60 from both sides.
x + 60-60 = 100 - 60 Combine
Answer: x = 40
Use the coordinate plane below (PLEASE HELP FIRST TO ANSWER AND ANSWER ALL WILL GET BRAINIEST)
Answer:
21. (-5,-4), (-5,3), (5,-4), (5,3)
22. (-4,0), (4,0), (0,-3), (0,3)
Step-by-step explanation:
number 21 should look like a rectangle.
number 22 should look like a diamond
Hope this helps, if you need more information please let me know or send a picture<33
HELP ME PLEEEEEAAAAASE
Answer:
the answer is bag b because there is more cauculators
Step-by-step explanation:
hi i need help (again)
i swear im smart
Answer:
The weight of an adult dog is 45 pounds.
Step-by-step explanation:
9 pounds is 20% of the adult weight. To get to 100%, you have to multiply 20 by 5. Multiply 9 by 5 and it will be 45. Sorry for answering late.
please help mark brainliest
Answer:
x.x.x.x.x.x=4
Step-by-step explanation:
the x means how many times to multiply 4 in this case your multiplying 4, 6 times to get 24
You flip a coin and roll a dice. The resultant outcome table where H means heads, T means Tails, and the number represents what number was rolled on the dice. The outcome list is as follows
What is the probability that the coin reads heads or tails and the dices number is less than or equal to 6?
Answer:
hee-hee
Step-by-step explanation:
We first have to find out how many possible outcomes are in total.
There are 2 outcomes for the coin, either that the coin reads heads or tails.
There are 6 outcomes for the die, from 1 to 6.
2 x 6 = 12
There are 12 possible outcomes.
Now let's move on to the favorable outcomes.
We want to get the coin to flip on either heads or tails, and that the die has a number greater than or equal to 6.
The coin can only flip heads or tails.
The die's sides only goes up to 6.
The probability that the coin reads head and tails and that the dices number is less than or equal to 6 is 12/12 or 1. It is certain.
hope this helps and hope this correct :)
the correct answer is 1 also do you do school on graduation alliance because i was looking for the same answers and the picture looks like the same as the quiz im doing lol
ANOTHER KA QUESTION PLSSS
Answer:
-14/15 - 1/3v
Step-by-step explanation:
combine like terms -6/5 = -18/15 + 4/15 = -14/15
-2/3 + 1/3 = -1/3
Can someone find F(12).
i really have no idea...
Please and thank you?
Answer: 909.03
Step-by-step explanation:
We know that the equation is an exponential function, it can be written as y=ab^x
[tex]100 &=a b^{6.5} \dots \mathrm{Equation \ 1} \\11 &= a b^{1} \\[/tex]
[tex]\Rightarrow ab^1=11[/tex]
[tex]\Rightarrow \frac{ab^1}{b}=\frac{11}{b};\quad \:b\ne \:0[/tex]
[tex]\Rightarrow a=\frac{11}{b}[/tex]
a = 11/b, substitute it in equation 1
[tex]100 &=a b^{6.5}[/tex]
[tex]\Rightarrow 100=\left(\frac{11}{b}\right)b^{6.5}[/tex]
[tex]\Rightarrow 100b=11b^\frac{11}{2}[/tex]
[tex]\Rightarrow 11\sqrt{b^{11} } =100b[/tex]
[tex]\Rightarrow \sqrt{b^{11} } =\frac{100}{11}}[/tex]
[tex]\Rightarrow \sqrt{b^{11} } =\frac{100}{11}}[/tex]
[tex]\Rightarrow {b^{11} } =\frac{10000}{121}}[/tex]
[tex]\Rightarrow {b} =\frac{\sqrt[11]{10000 \cdot 11^9} }{11}[/tex]
[tex]\Rightarrow {b} = 1.49379[/tex]
a = 11/b
a = 11/(1.49379)
a = 7.36382
Equation: y = (7.36382)(1.49379)^x
Now plug in 12 for x:
[tex]\Rightarrow { \left(7.36382\right)\left(1.49379\right)^{12}[/tex]
[tex]\Rightarrow 7.36382\cdot \:1.49379^{12}[/tex]
[tex]\Rightarrow 7.36382\cdot \:123.44530\dots[/tex]
[tex]\Rightarrow 909.03[/tex]
Therefore, f(12) = 909.03 for the exponential function
do what it says on the image
Answer: A. 70 B. 43 C. 331 D. 20
Step-by-step explanation:
just take away the decimal
Answer:
A. 70
B. 43
C. 331
D. 20
Step-by-step explanation:
I need help with these this is due today
Answer:
Yah no way man your gonna fail
Step-by-step explanation:
Hostoso
In a survey, 250 adults and children were asked whether they know how to
swim. The survey data are shown in the relative frequency table
Can www
Carwin
034
0.06
0.12
To
What percentage of the people surveyed cannot swim?
O A 10%
OB, 18%
OC, 12%
0.6%
Answer:
B
Step-by-step explanation:
0.12 is 12 percent we also have the 0.06 percent which would just be 6 percent we need to add up those percentages to get 18 percent, for the people surveyed that cannot swim would be 18 percent.
can you please help me fill out the table!!
and
What do the x-values represent?
What do the y-values represent?
Answer:
X Values: Years After 1985
Y Values: Cell Phone Subscriptions
I am not sure of this answer, but please ask whoever assigned you it.
Libby's dog stands 79
7
9
yard tall, and Jeff's dog stands 56
5
6
yard tall. How much taller is Jeff's dog than Libby's dog?
Answer:
jeffs dog is smaller than libbys dog
Step-by-step explanation:
help me with this people
Answer: 235 cm^2
Explanation: you can cut the shape into two smaller ones and then solve for each smaller shapes area. to find out the length of the top piece with 11 as length you can subtract nine from fourteen. from their you calculate the area of the top shape (11x5=55) and then the bottom shape (9x20=180). from their just add the two areas to get 235.
Answer:
246 cm squared
Step-by-step explanation:
u hv to break up the big shape into little shapes so you would do 20x9 and 20-14 which is 6 and do 6x11 and then add them up