Answers
Pasos
3(3−1)
Usa la propiedad distributiva para multiplicar 3 por 3−1.
(3)2−3
El cuadrado de 3 es 3.
3−3
B
Pasos
5(10+2)
Usa la propiedad distributiva para multiplicar 5 por 10+2.
510+52
Factorice 10=5×2. Vuelva a escribir la raíz cuadrada del producto 5×2 como el producto de las raíces cuadradas 52.
552+52
Multiplica 5 y 5 para obtener 5.
52+52
Para multiplicar 5 y 2, multiplique los números bajo la raíz cuadrada.
52+10
Related Questions
If you have 12 green marbles, 22 white marbles, 12 purple marbles, and 4 blue marbles what is the probability of getting a green marble
Answers
12 + 22 + 12 + 4 = 50
There are 50 marbles you can choose from and 12 green marbles so the chance of you getting a green marble is:
12/50
= 0.24
24%
According to the graph below how many year from now will the cost of a new computer be closest to the cost of tuition but still higher?
Answers
Answer:
its B
Step-by-step explanation:
Manuela claims that ab and pq are congruent
Answers
Plsssssss helpppppppppp
Answers
17. -9/100 or -0.09
18. -7/20 or -0.35
19. 3/4 or 0.75
A place kicker expects to make 75% of his field goal attempts this season.If he attempts 36 feild goals this season how many is he exspected to make? show your work
Answers
Answer:
27
Step-by-step explanation:
75 % of 36 is 27. The place kicker expects he that will make 27 field goals. 36 − 27 = 9 The place kicker expects that he will miss 9 field goals.
Kevin is twice as old as his sister Amy their father is five times as old as Amy if the sum of the ages is 64 how old is Amy
Answers
Answer:
8 years old
Step-by-step explanation:
Set Amy's age as x.
Kevin's age will be 2x, since he is two times as old as Amy.
Father's age will be 5x, since he is five times as old as Amy.
x + 2x + 5x = Sum of the ages = 64
x + 2x + 5x = 64
Combine like terms: 8x = 64.
Divide 8 on both sides: x = 8.
Amy's age = 8.
Hope this helps!
How do you write 9^2 · 8^3 without exponents? A) 9 + 9 + 8 + 8 + 8 B) 9 x 9 x 8 + 8 + 8 C) 9 x 9 x 8 x 8 x 8 D) 9 + 9 x 8 x 8 x 8
Answers
Answer:
c
Step-by-step explanation:
there are 2 nines and 3 eights, all multiplied together
Ans: C
9^2=9×9
8^3=8×8×8
9^2.8^3=9×9×8×8×8
HW 6.7 #11
Find the half-life of an element which decays by 3.418% each day. Hint: use y = ab^t.
Answers
First setup the equation for how much element is remaining after each day:
y = a ( 100% - 3.418%)^t
where y is the amount remainig and t is the number of days
We can clean this up by subtracting the percentages and converting that to a decimal:
y = a (0.96582)^t
Now for the half-life, we need to figure out how long until there's half of what we started with. When does "a (0.96582)^t" equal "1/2 of a"
1/2a = a (0.96582)^t
divide by a on both sides and you get
1/2 = (0.96582)^t
take the log of both sides and you get:
log(1/2) = t log(0.96582)
divide both sides by log(0.96582)
log(1/2) / log(0.96582) = t
Throw that into a calculator and you have
t ≈ 19.93
1.
7x(x-2y)
(2+1)(+5)
Answers
Step-by-step explanation:
7x(x - 2y)
= 7x.(x - 2y)
= 7x² - 14xy
= (2 + 1)(+5)
= (3)(5)
= 3 × 5
= 15
Step-by-step explanation:
1) 7x(x - 2y)
= (7x . x) - (7x . 2y)
= 7x² - 14xy
2) (2 + 1)(+5)
= 3(+5)
= (3 . +5)
= (3 . 5)
= 15
If you start off with 1220 and you take away 100 then add 50 how much do you have
Answers
1220 - 100 = 1120
1120 + 50 = 1170
Answer: 1170
Answer:
1170
Step-by-step explanation:
HI hope you have a wonderful day.
Order these numbers from least to greatest.
Answers
Answer:
5 8/11, 57/10, 5.724, 5.95
Step-by-step explanation:
Solve for y.
2- -3 = y
y =
Answers
Answer:
y=5
Step-by-step explanation:
the way you do this is by adding 2 and 3 because two negatives make a positive.
A greengrocer bought 200 kg of oranges for $180 and sold them for $1.14 per kg. Find
a. His profit.
b. His percentage profit on the cost price.
Answers
Answer:
profit : $28
profit percentage: 14%
Step-by-step explanation:
his profit : $1.14 times 200kg = $228
228 -200 = 28
28 divided by 200 = 0.14
0.14 times 10 = 14 %
brainliest and 15 points, pls help very easy
Answers
Answer:
70cm
Step-by-step explanation:
What is the value of y=3x−1 when x=4?
Answers
Answer:
11
Step-by-step explanation:
y=(3 x 4)-1
y=12-1
y=11
Answer:
y = 11
Step-by-step explanation:
Substitute the value for x.
[tex]y=3x-1\\y=3(4)-1\\y=12-1\\y=11[/tex]
Which expression is equivalent to a + 4a + 8?
05a
13a
a + 12
5a + 8
Answers
Answer:
5a +8
Step-by-step explanation:
a+4a=5a
5a+8
=5a+8
Please complete this for me
Answers
8x^3+80x^2-32x+7x^2+70x-28
8x^3 + 87x^2 + 38x - 28
what is the answer to 1/2 + 1/3 =
Answers
Answer:
5/6 (decimal form: 0.83)
Step-by-step explanation:
Answer: 0.8333… (numbers keep going)
Step-by-step explanation:
solve pls brainliest
Answers
Answer:
1) 0.3%= 3/1000= 0.003
2) 1.32= 132%
Step-by-step explanation:
fdgethryjryj
Answer:
Percent means “out of a hundred“
So 0.3 percent as a decimal can just be you multiplying it by 0.001
Since it’s a hundred percent
You’d get 0.003 as a fraction
For 1.32 into a percentage
Remeber percent means out of a hundred
So in this case its 1.32
1 is a whole number so thats already 100 percent
32 extends to the hundreths place so it becomes 32/100
Now add
100+32 = 132
132%
The bill at the restaurant totaled $45.60. Shawn wants to leave a 15% tip. How much would Shawn leave for a tip
Answers
Answer:
$6.84Step-by-step explanation:
[tex]45.60 \times 15\% \\ 45.60 \times \frac{15}{100} \\ \frac{684}{100} \\ 6.84[/tex]
Which value is equivalent to (20/3) / (2/15)?
1. 1/50
2. 2
3. 50
4. 8/9
Answers
Answer:
50
Step-by-step explanation:
12x=3/2 what does x=
Answers
_________
[tex] \: [/tex]
[tex]12x = \frac{3}{2} [/tex]
[tex]x = \frac{3}{2} \times \frac{1}{12} [/tex]
[tex]x = \frac{3}{24} [/tex]
[tex]x = \bold{ \frac{1}{8}} [/tex]
Calculate the perimeter
Answers
Answer:
48m
Step-by-step explanation:
12m - 4m = 8m / 2 = 4
12m + 4m + 4m + 4m + 4m + 8m + 8m + 4m = 48
Can some one help quickly. Please show work
Answers
Answer:
-20
Step-by-step explanation:
48 divided by -3 is -16 but you round up since its high enough and it goes to -20
What is $2.5 as a percentage of 20 dollars
Answers
Answer:
0.5
Step-by-step explanation:
That's the answer cheif
Answer:
12.5%
Step-by-step explanation:
I did 20/2.5, and got 8. That means there are 8 groups of 2.5 inside 20.
Then, I did 100/8 to represent the percentage.
I got 12.5%.
Which shows a difference of squares?
10 y squared minus 4 x squared
16 y squared minus x squared
8 x squared minus 40 x + 25
64 x squared minus 48 x + 9
Answers
Answer:
difference of two squares will be
16y^2 -x^2 = (4y -x)(4y +x)
so the second choice
Step-by-step explanation:
Find the probability:
You roll a fair 6 sided die. The die shows an even number or a number greater than 3
An explanation on how you got your answer would be much appreciated :)
Answers
Answer:
There is a 2/6 chance
Step-by-step explanation:
Because there is only 6 possibilities on a die, under the conditions (even number or a number greater than 3), there are 4 possibilities. This makes a 4/6 chance which can be simplified to 2/6.
Tolong bantuannya kak, butuh bangett..klo ga bisa jangan asal plss
Answers
Answer:
i dunno what you saying i think we were in the other country ?_?
A t-shirt increased in price by 1/4. After the increase, it was priced at £65. What was the original price of the t-shirt?
Answers
Answer:
52
Step-by-step explanation:
Given:
1/4
Price at 65
Solution:
Let x be the original price
Based on the given conditions, formulate: [tex]x[/tex] ×[tex](1+\frac{1}{4} )=65[/tex]
Apply Multiplicative Distribution Law: [tex]x+\frac{x}{4} =65[/tex]
Multiply both sides of the equation by the common denominator: [tex]x[/tex]×[tex]4+\frac{x X4}{4} =65 X 4[/tex]
Reduce the fraction: x×4+x=65×4
Multiply the monomials: 4x+x=65×4
Combine like terms: 5x= 65×4
Calculate the product or quotient: 5x= 260
Divide both sides of the equation by the coefficient of variable: x = [tex]\frac{260}{5}[/tex]
Calculate the product or quotient: x = 52
get the result: x = 52
Answer: x = 52
A class has 40 students. The teacher asks how many students in the class have siblings and finds 3/10 of the students have siblings. How many students have siblings?
Answers
Answer:
12 students
Step-by-step explanation:
First, find the percentage of how many students have siblings:
3/10 = 0.3 = 30%
40 * 0.3 = 12
This means that 30% of this class are 12 students. These 12 students have siblings.
Hope this helps!
