El número de dos cifras que al restarle el mismo número con cifras invertidas da 72 es el número 91.
¿Cómo encontrar el número ideal?Para encontrar este número, el primer paso es comprender la información dada:
El número tiene dos cifras.Al invertir y restar el número el resultado es 72.El número no contiene 0.¿Cuál es el número ideal?Sabemos que la resta del primer digito debe dar 2. De acuerdo a esto, los posibles primeros digitos son:
4-2 / 6 -4 / 8 - 6/ 9 - 1/ 9 - 7/ 7-5/ 5 -3/ 3-1
De estas posibles combinaciones, la única que nos da el resultado esperado es 91.
91- 19 = 72
Learn more about numbers in: https://brainly.com/question/17429689
please can you solve this fast
Step-by-step explanation:
[tex] {x}^{2} + 8x = 0[/tex]
[tex] {x}^{2} + 8x + 16 = 16[/tex]
[tex](x + 4) {}^{2} - 16 = 0[/tex]
Can anyone solve this correctly?
Answer:
43.52 in.
Step-by-step explanation:
7 in. x 10.2 in. = 71.4 in.
4.1 in. x 6.8 in. = 27.88 in.
71.4 in. - 27.88 in. = 43.52 in.
2. In 2014, Social Security tax was 6.2%,
on the first $117,000. If Grace earned
$98,750 in 2014, how much Social
security tax did she pay?
Brainliest Given/Thanks/5 Star for the following;
→ No Copy
→ Explanation
a sample representative of the entire population is an
[A] Biased sample
[B] unbiased sample
[C] convenience sample
[D] free sample
Answer:
unbiased sample
Step-by-step explanation:
The population is divided into similar, nonoverlapping groups. A simple random sample then selected from each group.
A biased sample is the opposite of unbiased sample.
Answer:
[B] unbiased
Step-by-step explanation:
Let's first define each answer choice;
Biased sample: sample not representative of the entire population.
Unbiased sample: sample where every member of the population has an equal chance of being selected.
Convenience sample: sample where representatives are easily accessible.
Free sample: Sample of small amount
Thus, base on the define of the answer choices we can know that
[B] unbiased sample is the correct answer.
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Help...../..........///////////.
Answer:
The answer is C. $2.20 per lb
it is C 2.20 per pound
Step-by-step explanation:
because 2.20 x 5 = 11 hope
hope this helps
If x = 16,justify if this value is a solution to the equation:2x-(x+3)=13
Answer:
true, when you substitute 16 for x and solve it adds up correctly
Answer:
13 = 13
so True
Step-by-step explanation:
x = 16
2(16)-(16+3)=13
32-19=13
13=13
Can someone help me with this if you can? please and thank you! :)))
Answer:
The regular price is $38.69
Step-by-step explanation:
32.89 / 0.85 = 38.69411765
Solve for the value of z.
(2+4)° 101°
HELP PLEASE 15 POINTS ILL GIVE YOU COOKIE
Answer:
75?
Step-by-step explanation:
Isnt the total of the line suppose to equal 180*? if thats the case then the first angle 101* is 11 over the 90* mark meaning that you take 11 from the other side which would be 90-11 and that leave you with 79 but since the problem says +4 you would take 4 from 79 leaving you with 75. You would work backwards on the problem so the whole thing equals 180*
Which of the following numbers is divisible by 3, 5, and 10? OA) 15 B) 20 OC) 25 OD) 30
Answer:
30 is the correct answer because 3times 10 =30 5 times 6 is 30 and 10 times3 is also 30
help plss
Simplify.
14(1−23)2+13
Enter your answer, as a simplified fraction, in the box.
Answer:
-293
Step-by-step explanation:
14(1-23)2+13
PEMDAS
14(-22)2+13
-308 + 2 +13
-306
-293
hope this helps
what 3.2 x 10^3
in standard form
Answer:
3,200
Step-by-step explanation:
10^3 is also represented as 1,000, so you just move the decimal over to the right 3 places.
Find the value of f(3) for the function.
f(x)= -3 (x+3)
Answer:
the answer is -18
Step-by-step explanation:
- 3 (3 + 3 )- 3 × 6- 18Answer:
f(3)= -18
Step-by-step explanation:
f(x)= -3(x+3)
putting the value 3 in place of x
f(3)= -3(3+3)
or,f(3)= -3(6)
or,f(3)= -18
Tony purchased a rare 1959 Gibson Les Paul guitar for $12,000. Experts estimate that its value will increase by 14% per year. If this trend continues, how many years will it take for the guitar to reach a value of $90,000?
Answer: 214332.47
There is no need to explain you can just see the photo that I had displayed.
Find the value of the missing variable(s). All figures are kites. (please don't leave any links...)
Answer:
Step-by-step explanation:
The values of x and y are required.
and
From the given figure the sides and are equal.
Also, and are equal.
So,
Hence, and
3) Daniel bought a magazine for $7 and four
erasers. He spent a total of $19. How
much did cach craser cost?
Answer:12 dollars and 9 cents
Step-by-step explanation:
Answer:
each eraser was $3
Step-by-step explanation:
You do 19-7 (because ur subtracting the magazine cost) then you have 12. You divide 4 by 12 which equals 3. Therefore, each eraser is $3. Hope this helped :)
One kilogram is approximately 2.2 pounds. An elevator in London shows a weight limit of 200
kilograms. How many pounds (lbs.) is this?
Answer:
440!!
Hope I helped! (and also if nobody said this today, remember that you´re loved) <33
3. Priscilla is trying to decide which of two aquariums she should buy.
One aquarium is a rectangular prism with a base that is 20 inches by 19
inches and a height that is 22 inches. The other aquarium is in the shape
of a cube that has 20-inch edges. Find the difference in the volume of
the fish tanks?
one has more width the other shows the length
3.) Forty percent of a number is equal
to one-half the number decreased by
15. Which one can be used to
determine the number?
A 40x = – 15
B 40x > 2x – 15
C 0.40x< - 15
D 0.4x =x/2-15
which is faster 220 newspaper in 55 mins or 135 newspapers in 45 mins. which one is the faster rate
Answer: 135 newspapers in 45 mins
Step-by-step explanation:
Find x if f(x) = 2x + 7 and f(x) = -1.
A. 5
B. -3
C. -4
Answer: C
Step-by-step explanation: When I graphed the equation and went to -1 y, the answer was -4.
simplify (5x-7) (2x+3) (7x-8)
Answer:
70x³ - 73x² - 155x + 168
Step-by-step explanation:
Given
(5x - 7)(2x + 3)(7x - 8) ← expand the first pair of factors using FOIL
= (10x² + x - 21)(7x - 8)
Each term in the second factor is multiplied by each term in the first factor, that is
10x² (7x - 8) + x(7x - 8) - 21(7x - 8) ← distribute the 3 parenthesis
= 70x³ - 80x² + 7x² - 8x - 147x + 168 ← collect like terms
= 70x³ - 73x² - 155x + 168
A 24-ounce box of cornflakes costs $4.59. What is the unit rate?
Answer:
0.19 cents/ounce
Step-by-step explanation:
4.59 dollars/24 ounces = 0.19125 cents/ounce
rounded, the unit rate would be about:
0.19 cents/ounce
person 1 can do a certain job in 15min, and person 2 can do the same job in 30 min. when completing the job together, which expression would be used to represent the amount of work done by person 1
A. 15
B. 1/15
C. x/15
Answer:
I believe the answer is B. 1/15
Step-by-step explanation:
Answer:
B. 1/15
Step-by-step explanation:
A student correctly answered 35 of the 40 questions on a mathematics exam. What percent did she answer correctly?
Answer:
87.5%
Step-by-step explanation:
To find a percentage of questions correct divide the number of correct answers by the total number of questions and then multiply that by 100.
(35/40)100=87.5
fractorise 2x - 12 pls
Answer:
[tex]2x - 12 \\ \\ = 2(x - 6)[/tex]
# Bora 7#
Answer:
the answer is -24
Step-by-step explanation:
2x (-12) = 2 times -12, which is -24
Does the graph represent a linear or nonlinear function? Explain
Answer:
non linear
Step-by-step explanation:
Because a linear function its a straight line who pass from the origin point because the values are proportional
Anna had a solid wooden dowel with a length of 12 inches and a diameter of 1 inch, as shown below. She cut a two-inch portion out of the dowel as indicated. What was the volume, to the nearest tenth of a cubic inch, of the portion of the dowel that Anna cut out?
Answer:
Volume of the portion = 1.6 cubic inches
Step-by-step explanation:
Since, wooden dowel is in the shape of a cylinder,
Formula to be used to find the volume of the part Anna has cut from the dowel will be,
Volume = πr²h
Where r = radius of the cylinder or part of the wooden dowel
h = length of the portion
By substituting the values in the formula,
Volume = π(0.5)²(2)
= 0.5π
= 1.57 in³ ≈ 1.6 cubic inch
Therefore, volume of the portion will be 1.6 in³.
Which 2 numbers that are between -8 and 5/4? -4.0, 1.3%, -0.1, -1/4, 3/2, 130% Help me!!
Answer:
This is a "strategic" guess
Step-by-step explanation:
I think it is -0.1
What is the area of this figure?
o 573 units
o 638 units
O 683 units
Answer:
638 square units
Step-by-step explanation:
37 × (9 + 16) - 9 × 16 - 13 × (25 - 14) =
= 37 × 25 - 9 × 16 - 13 × 11
= 925 - 144 - 143
= 638
Answer: 638 square units
Answer:
638
Step-by-step explanation:
i took the k12 test
You answer 30 out of 40 questions correctly on a test. Did you reach your goal of 80%
Answer:
No
Step-by-step explanation:
If you divide the numerator by the denominator, 30/40 equals 0.75 in decimal form, so you did not reach your goal of 0.80.
Answer:
No, You didn't reach you goal of 80%, You only got 75% on the test.
Step-by-step explanation:
Given;
You answer 30 out of 40 questions correctly on a test.
To Find;
Did you reach your goal of 80%
Solve;
30 ÷ 40 × 100
[tex]\mathrm{Follow\:the\:PEMDAS\:order\:of\:operations}[/tex]
[tex]30\div \:40=\frac{30}{40}[/tex]
[tex]\frac{30}{40}\cdot100[/tex]
[tex]=75[/tex]
Hence, No you didn't reach your goal of 80%
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