Answer:
3/88
Step-by-step explanation:
when multiplying fractions, you can just multiply across. make sure to simplify!
fifty one students are in fifth grade.2/3 of the students walk to school every day and1/3 come on the bus. how many kids walk to school and how many ride the bus
Answer:
walk=34 bus =17
Step-by-step explanation:
51÷3=17 1/3 of 51=17 so add 17 and 17 togeter to get 2/3
Answer:
Step-by-step explanation:
total=51
2/3 walk
1/3 bus
[tex]\frac{2}{3}51=\frac{102}{3}=34 ~=>34~students ~walk\\\\\frac{1}{3}51=\frac{51}{3}=17~=>~17~students ~take~the~bus[/tex]
5x + 6y when x = 16, y = -9
Answer:
26
Step-by-step explanation:
5x+6y
substitute x=16 and y=-9:
5*16+6*(-9)
=80-54
=26
Tamika was buying 12-packs of soda. Each pack cost $3.50. If she spent $49.00, how many 12-packs did she buy?
Answer:
Number of 12-packs = 14
Step-by-step explanation:
Cost Number of 12-packs
3.50 1
49.00 x
[tex]\frac{1}{x} = \frac{3.50}{49}\\\\1 \times 49 = 3.50 \times x\\\\\frac{49}{3.50} = x\\\\x = 14[/tex]
Number of 12-packs for $49 = 14
Mr. Alhammadi is shopping for school supplies with his children. Rashed selected 3 one-inch binders and 2 two-inch binders, which cost a total of 29 dirhams. Matar selected 5 one-inch binders and 2 two-inch binders, which cost a total of 35 dirhams.
Write a system of equations that represents the above situation.
I need help ASAP please :(
Answer:
3x + 2y = 29
5x + 2y = 35
Step-by-step explanation:
Let
x = cost of one-inch binders
y = cost of two-inch binders
Rasheed:
3x + 2y = 29 (1)
Matar:
5x + 2y = 35 (2)
3x + 2y = 29 (1)
5x + 2y = 35 (2)
Using elimination method, subtract (1) from (2)
5x - 3x = 35 - 29
2x = 6
x = 6/2
x = 3
Substitute x = 3 into (1)
3x + 2y = 29 (1)
3(3) + 2y = 29
9 + 2y = 29
2y = 29 - 9
2y = 20
y = 20/2
y = 10
Math help plss screenshot below
Answer:
I think 23%
Step-by-step explanation:
4-2(x+7)=3(x+5) solve the equation
Answer:
-5
Step-by-step explanation:
Our first step is to distribute/expand in the brackets so we are able to isolate x-term.
[tex] \large{4 - 2x - 14 = 3x + 15}[/tex]
I hope you still remember that when multiplying positive with negative, it becomes negative. Then we combine like terms - we isolate the 2x by adding 2x both sides and subtract both sides by 15.
[tex] \large{4 - 2x - 14 + 2x - 15 = 3x + 15 + 2x - 15} \\ \large{ - 25 = 5x}[/tex]
Then to divide both sides by 5 so we can finally get the x-term isolated.
[tex] \large{ \frac{ - 25}{5} = \frac{5x}{5} \longrightarrow - 5 = x}[/tex]
Dividing the negative by positive results in negative as well! Next step is optional, which is about checking the answer. To check the answer if it's right or not, we can do by substituting x = -5 in the equation and solve until these two outcomes may occur:
Both sides are different (Ex. 2 = 5). This means that the answer is not correct or not a part of the equation.Both sides are equal/same (Ex. 4 = 4). This means that the answer is correct and a part of the equation.[tex] \large{4 - 2(x + 7) = 3(x + 5)}[/tex]
From the given equation above, substitute the value of x which is -5 in the equation.
[tex] \large{4 - 2( - 5 + 7) = 3( - 5 + 5)}[/tex]
Evalute/Simplify:
[tex] \large{4 - 2(2) = 3(0) \longrightarrow 4 - 4 = 0} \\ \large \boxed{0 = 0}[/tex]
Since both sides are equal or same. Thus the solution to this equation is x = -5.
Answer
x = -5I hope this helps! If you have any doubts or questions, don't hestitate to ask in the comment! Good luck on your assignment and have a great day! :)
can somebody help me with explaining??
Answer:
the first one is 1.667
Step-by-step explanation:
5/3=1.667
10/6=1.667
and so on
Sorry i dont know the second one
What is the equation of the line that passes through the points (2, -4) and (-6, 6)?
Answer:
y = -5/4x - 3/2
Step-by-step explanation:
y2 - y1 / x2 - x1
6 - (-4) / -6 - 2
10 / -8
= -5/4
-4 = -5/4(2) + b
-4 = -5/2 + b
-3/2
which of the following is the definition of a compound interest?
The definition of a compund intrest is:
Compound interest (or compounding interest) is the interest on a loan or deposit calculated based on both the initial principal and the accumulated interest from previous periods.
hope this helps :D
Which expressions are equivalent. Picture Provided. NO LINKS! NEED ANSWER ASAP
Answer:
B) 3^-5 (1 / 243) and D) 2^5 x 6^-5 (1 / 243)
Step-by-step explanation:
3 to the negative 5th power as a fraction is
1 / 243.
2 to the power of 5 multiplied by 6 to the power of negative 5 also equals 1 / 243.
Both expressions are equivalent to 2^5 / 6^5 because they equal the same thing (1 / 243).
Factor –7x3 + 21x2 + 3x – 9 by grouping. What is the resulting expression?
(3 – 7x)(x2 – 3)
(7x – 3)(3 + x2)
(3 – 7x2)(x – 3)
(7x2 – 3)(3 + x)
Answer:
(3–7x²)(x–3)
Step-by-step explanation:
If you apply the distributive property in (3–7x²)(x–3), you obtain:
3x-9-7x²(x)+21x²
3x-9-7x³+21x²
When you order the expression, you have:
-7x³+21x²+3x-9
Then, the answer is (3–7x²)(x–3)
The resulting expression from the given algebra after grouping is; C: (3 – 7x²)(x – 3)
What is the resulting algebra expression?We want to simplify the algebraic expression; -7x³ + 21x² + 3x - 9
Applying distributive property of algebra, we have;
-7x²(x - 3) + 3(x - 3)
By factorization, we have;
(3 – 7x²)(x – 3)
Looking at the options, only option C is correct
Read more about Algebra Expression at; https://brainly.com/question/4344214
Does anybody know how to solve or what the answer is?
Answer:
3/2
Step-by-step explanation:
Printer A prints 50 pages every 10 minutes.
Printer B prints 50 pages every 30 minutes.
How many minutes will it take to print 100 pages if you use printer A and B together?
Answer:
15 minutes
Step-by-step explanation:
The formula is
1/a + 1/b = 1/c to determine joint time where a and b are the times alone and c is the time together
1/10 + 1/ 30 = 1/c
Multiply each side by 30c to clear the fractions
30c( 1/10 + 1/ 30) = 1/c * 30c
3c + c = 30
4c = 30
Divide by 4
4c/4 = 30/4
c = 7.5 minutes
This is the time for 50 pages
We want 100 pages, so multiply by 2
7.5 *2 = 15 minutes
Divide. Give the quotient and remainder.
1964÷8
what is the quotient?
what is the remainder?
Mrs. Hill said that 30% of her students
made an A on the test last week. If 33
students made an A on the test, how many
total students does Mrs. Hill have? Record
your answer and fill in the bubbles. Be sure
to use the correct place value.
у
5 The scatter plot represents the weight of a bunch
of bananas baseli on the number of bananas in
the bunch. A trend line shows the relationship.
4
About how many pounds does the trend
line predict a bunch with 9 bananas
will weigh?
Weight (lb)
А
3.0
B.
3.5
4.0
X
2
6
8
10
D
4.5
Number of Bananas in Bunch
Which of the following alternative energy technologies is most likely to be used to power a car?
a.
wind
b.
geothermal
c.
biofuel
d.
hydropower
Please select the best answer from the choices provided
A
B
C
D
Answer: c. biofuel
Step-by-step explanation: just took test
The best alternative energy technologies is most likely to be used to power a car is bio-fuel
What is Bio-Fuel?Bio-fuel is a type of fuel that is created quickly from biomass, as opposed to the lengthy natural processes that result in the development of fossil fuels like oil. Plants may be used to make biofuel, as well as home, commercial, and agricultural biowaste.
Given data ,
Any fuel that is made from biomass, or plant, algae, or animal waste, is referred to as a biofuel. Unlike to fossil fuels like petroleum, coal, and natural gas, biofuel is seen as a source of renewable energy due to the ease with which such feedstock material may be supplied.
In light of rising petroleum prices and growing concern about the role fossil fuels play in global warming, biofuel is frequently promoted as a convenient and ecologically friendly substitute for petroleum and other fossil fuels.
Hence , the alternative to power a car is bio-fuel
To learn more about bio-fuel click :
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Help please I’m very stuck
Answer:
D) adjacent
Step-by-step explanation:
Answer:
adjacent
Step-by-step explanation:
the two angles have a side in common
Please help, I'll give brainliest to whoever gives the best explanation and answer!
Answer:
The humming bird weighs more than the nickls.
you need to compare the decimals.
Step-by-step explanation:
0.16>0.18
please help lolz , due in 10 min.. ill give brainly n a thanks. <3
10. 50+70=
Answer:
120. hope his helps.
Step-by-step explanation:
50 + 70 = 120
If you were to pick one day of the year at random, is it more likely that the day would be a Tuesday or that the day would fall during the month of January?
Answer and explain in your own words why you chose what you chose.
Answer: It's more likely it's a Tuesday
========================================================
Explanation:
The odds of it being a Tuesday is 1/7 since there's 1 day of the week that's Tuesday out of 7 total.
The odds of it being January is 1/12 because we have 1 month we want out of 12 total.
Now the question is: which fraction is larger?
For now, assume they are equal. We'll cross multiply like so
1/7 = 1/12
1*12 = 7*1
12 = 7
We get a false statement at the end, but we can fix things by replacing the equal sign with a greater than sign to get this new set of steps
1/7 > 1/12
1*12 > 7*1
12 > 7
which leads us to a true statement. Therefore, 1/7 is the larger fraction and the more likely event.
-----------------
Alternatively, you can use your calculator to find that:
1/7 = 0.143 approximately1/12 = 0.083 approximatelyThen for each decimal, move the decimal point 3 spots to the right. The values 0.143 and 0.083 become 143 and 83 respectively. We can see that 143 is larger, which means 0.143 is larger, and lastly 1/7 is larger. Think of it like a chain.
what is the value of r if 3r =243
Answer:
Making r the subject
r=243/3 = 81.
3r = 243
r = 243/3
r= 81
hope it helps you ♡♡
hey cool kids can any of you be the geniuses you are and help a hommie out >:) anyways here is the question besties
Rick is driving to his uncle's house in Greensville, which is 120 miles from Rick's town. After covering x miles, Rick sees a sign stating that Greensville is 20 miles away. Which equation, when solved, will give the value of x?
A.
x + 120 = 20
B.
x × 120 = 20
C.
x + 20 = 120
D.
x × 20 = 120
so you think you can tell me lol :,).
Answer:
C
Step-by-step explanation:
That is because when you take 20 to the other side it will be x= 120 -20
x=100 miles
final answer C
Benito has 2 pounds of ground turkey. He needs 1/4 pund to make 1 turkey burger. How many turkey burger can benito make
Answer:
8 turkey burgers
Step-by-step explanation:
1/4 x 8 = 2
There are 8 turkey burger can Benito make.
What is Multiplication?To multiply means to add a number to itself a particular number of times. Multiplication can be viewed as a process of repeated addition.
Given that;
Benito has 2 pounds of ground turkey.
And, He needs 1/4 pound to make 1 turkey burger.
Now,
Let the number of turkey burger = x
Since, He needs 1/4 pound to make 1 turkey burger.
Hence, The number of turkey burger made by 2 pounds = 4 × 2
= 8
Thus, The number of turkey burger made by 2 pounds = 8
Learn more about the multiply visit:
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A vehicle travels a distance of 504 - 10+ 6 miles in + 2 minutes. The vehicle's speed is miles/minute.
Answer:
502
Step-by-step explanation:
504-10=494
494+6=500
500+2=502
answer 502
which expression has the greatest value?
Answer:
2nd one
Step-by-step explanation:
Hope this helps,
Applepi101
The volume of a pyramid that fits exactly inside a cube is 10 cubic feet. What is the volume of the cube? (5 points)
30 cubic feet
100 cubic feet
300 cubic feet
1000 cubic feet
Answer:
30 cubic feet
Step-by-step explanation:
volume of a pyramid is (l*w*h)=3
assuming it is a pyrmaid where l=w=h, volume = x^3/3 = 10
x^3=30
x=30^(1/3)
volume of a cube is l*w*h, with our assumption, that translates to x*x*x
Volume = 30^(1/3)*3 = 30 cubic feet
The volume of the cube, in relation to the given pyramid is: 30 cubic feet.
What is a Cube?Volume of a pyramid = 1/3(l × w × h)Volume of a cube = l × w × hRelating both volumes, we would have:
Volume of cube = 3(volume of pyramid)
Volume of pyramid is given as 10 cubic feet, therefore:
Volume of the cube = 3(10)
Volume of the cube = 30 cubic feet.
Learn more about volume of cube on:
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The number of Roberto’s baseball cards is ¾ the number of David’s cards If Roberto gives ½ of his cards to David, what will be the ratio of Roberto’s cards to David’s cards? please help me. I need it to step by step equations!!!!
Answer:
1/4, 0.25
Step-by-step explanation:
Answer:
3/11
Step-by-step explanation:
Let Roberto's cards be x.
Let David's cards be y
x = (3/4) y
Roberto gives half his cards away which is 1/2*(3/4) = 3/8
David's new amount after the gift = 1/2(3/4)y + y = 3/8y+y=3y/8+8y/8 = 11y/8
So the ratio is Roberto / David = (3/8) // (11/8)
Roberto to David = 3/8 // 11.8 which you now invert and multiply the denominator
Roberto to David = 3/8 * 8/11 = 3/11
Done on my cell.
Please help it is urgent in stuck #41
Answer:
84 degrees
Step-by-step explanation:
The two angles are supplementary (their sum is 180 degrees)
96 + b = 180
b = 180 - 96
b = 84
can you help me with these problems i need them ASAP!!!!!!
Answer:look it up on quizlet its easier
Step-by-step explanation: