Jack is 15 years younger than Sydney, The sum of their ages is 57. What is Sydney’s age?

Answers

Answer 1

Answer:

Sydney is 42 years old

Step-by-step explanation:

57 - 15 = 42

Related Questions

NO LINKS
A teacher surveyed her class after they had taken a vocabulary test. Elghteen of the students claimed they had studied
at least one hour for the test. The remaining twelve students admitted that they had not studied for the test at all. The
test results (expressed as a percent) for the two groups are shown below.
Studied: 87, 100, 94, 79, 92, 100, 95, 83, 89, 99, 100, 91, 89, 95, 100, 93, 96, 83
Did Not Study. 82, 72, 45, 91, 58, 83, 65, 87, 90, 77, 73, 89
Part 1: Calculate the mean of the group that did not study, rounded to the nearest tenth.
Part 2: Calculate the mean absolute deviation of the group that did not study, rounded to the nearest tenth.
Part 3: How many of the scores (from the group that did not study) are more than two mean absolute deviations from the
mean?

Answers

Answer:

nuhmkjmkk

Step-by-step explanation:

yg huughbbbbh

Describe any similarities or differences between 13•13 and 13²

Answers

both use the number 13 and give the same result

Silas was curious if sample minimum was an unbiased estimator of population minimum. He started with a large
normally distributed population of test scores whose minimum was 51 points.
He then took a random sample of 6 tests and calculated the minimum of the sample. He replaced those tests
and repeated this process for a total of 40 trials. His results are summarized in the dotplot below, where each
dot represents the minimum score from a sample of 6 tests.
:
..
TATUS
50
70
75
55
60
65
Sample minimum

Answers

Answer:

Sample minimum appears to be a biased estimator since it consistently overestimated the population minimum.

Step-by-step explanation:

I checked the answer

Help, please! I need to get this done. :(

Answers

Answer:

saw this question on egde its b

Plz help question is in pic!
will mark brainliest

Answers

should be 105.4 ft because you are finding the perimeter not area

Without solving, what can you tell about the solution to this equation? 0.002n + 15 = 2

Answers

Answer:

its easy

Step-by-step explanation:

cause it is

please help me I really need help

Answers

Answer:

D each number gets divided by four

Step-by-step explanation:

Hope this helps

If correct I’ll give brainlist

Answers

try y-2=-2(x-5) that should work if not the slope intercept form is y=-2x+12

Alejandro and Noya were told to draw a net for an octagonal prism. Which statement about the students' nets is true?

Answers

Complete question is;

Alejandro and Noya were told to draw a net for an octagonal prism. Which statement about the students’ nets is true? Both nets do not form octagonal prisms.

A) Only Alejandro’s net is correct.

B) Only Noya’s net is correct.

C) Neither net is correct.

D) Both nets are correct.

Answer:

C) Neither net is correct.

Step-by-step explanation:

From the second attached image, we can see what an octagonal prism looks like when it is opened to show all the faces.

However, looking at the first attached image showing the net drawings of boya and Alejandro, it is very clear that none of them got the required shape for the octagonal prism. Therefore, we can conclude that neither of the nets are correct.

HELP ME ASAP!!!!!!!!

SEE PIC ATTACHED

FRIEND REQUEST ME AND I'LL ACCEPT ALSO YOU WILL GET THANKS, BRAINLIEST AND A STAR RATING OF EXCELLENT! Good Luck!

Answers

Step-by-step explanation:

a. 6 £/hr

b. 6.8 £/hr.....is this right?

Answer:

B) 1 hour = £10

Step-by-step explanation:

the higher rate starts from 20 hours and the pay is £120 if you go to 30 hours, the pay rate is £220. A raise of £100. This means the new pay rate is for every 1 hour worked, you get £10

McKenna was asked to write the following expression in standard form.

3−5(3a+6)
When writing the expression in standard from, McKenna made a mistake.

3−5(3a+6)
3+(−5)(3a+6) Step 1

−2(3a+6) Step 2

−6a+(−12) Step 3

−6a−12 Step 4
a. McKenna made her first mistake in ____________

Question 2
b. The correct expression in standard form is ______

basically pls fill in the blanks :]

Answers

Answer: -15a - 27

Step-by-step explanation:

McKenna made her first mistake in Step 2. You would need to multiply -5 by 3a and 6, not add it to 3 first.

The correct steps would be:

3−5(3a+6)

3+(−5)(3a+6) Step 1

3 - 15a - 30 Step 2

-15a - 27 Step 3

please help, tysm if you do :D

Answers

Answer:

I think it is C I don't really know but try C

Write the standard form of the equation of the line through the given point with the given slope. point (-1.0); slope -2/3

Answers

Answer:

Step-by-step explanation:

When given a point and a slope, the best equation to use is the point-slope formula, y - k = m(x - h)

which here becomes:

y - 0 = m(x + 1), or y = (-2/3)(x + 1), or y = (-2/3)x - 2/3

If you want this in standard form, first clear the fractions by multiplying all terms by 3: 3y = -2x - 2

Now add 2x to both sides, obtaining: 2x + 3y = -2 (in "standard form."

find the mean absolute deviation
15, 17 l, 15, 17, 21 l, 17, 15, 23, 20, 18

Answers

Im confused. Are those ones? What are those lines

Answer:

17.8

Step-by-step explanation:

[tex](x + y) ^{2} [/tex]

Answers

Answer:

Step-by-step explanation:

(x + y) 2

x2 + 2xy + y2

Answer:

Step-by-step explanation:

This is an example of "the square of a binomial." There is a formula for such cases;

(a + b)^2 = a^2 + 2ab + b^2 (worth memorizing)

Thus, our (x + y)^2 = x^2 + 2xy + y^2

"* A party rental company has chains and tables for rent. The total cost to rent 8 chairs and 3 tables is $42. The total cost to rent 2 chairs and 5 tables is $53 what is the cost to rent cach chair and each table?

Answers

Answer: t= 10 c= 1.5

Step-by-step explanation:

Please help me with this one I beg you!! And don’t send those file links I know that their scams. Please help I will mark brainliest!!

Answers

Step-by-step explanation:

2;6 -> 6; -2

4;4 -> 4 ; -4

6;8 -> 8; -6

sorry English isn't my first language so I can't explain it :((

Help me out here plz

Answers

Answer:

I think that it would be [tex]28^{2}[/tex] cm

Step-by-step explanation:

8 x 7 = 56

56/2 = 28

The question is in the picture.

Answers

Answer:

Henry

Step-by-step explanation:

Henry is wrong before in the second step he didn't distribute properly. He multiply 5 · x but didn't multiply 5 · -2

The Becks buy a plastic tarp to cover their firewood. A rectangle that is eight and one-third yards long and six and three-fourths yards wide. Part A Which equation models the best estimate for the area of the tarp?

Answers

Answer:

56 1/4 yards

Step-by-step explanation:

Area of the tarp = length × width

Length = 8 1/3 yards

Width = 6 3/4 yards

Area of the tarp = length × width

= 8 1/3 yards × 6 3/4 yards

= 25/3 × 27/4

= (25 * 27) / (3 * 4)

= 675 / 12

= 56 1/4 yards

Area of the tarp = 56 1/4 yards

Please helpp me
The angles shown are supplementary.
What is the value of x?

Answers

Answer:

x = 35

Step-by-step explanation:

Answer:

x = 35

Step-by-step explanation:

Remember: The measures of supplementary angles add up to 180

In your case

3x + 15 + 60 = 180

3x + 75 = 180

3x = 105

x = 35

-4y-11x= 36
20=-10x-10y
Solve each system by elimination

Answers

Answer:

x= -4. y=2

Step-by-step explanation:

please like my answer and brainliest me hshshshshs

One mile is approximately 1.6 kilometers. A speed limit sign in Europe reading 65 kph
(kilometers per hour) means you can go about how many miles per hour (mph)*

Answers

Answer: 40

Step-by-step explanation: 65/1.6= around 40

65/1.6 is 40 so 40 is how much you can go per hour

7. PART B: Select all the values of x that make the inequality below true. *
x>-1
A. -4
B.-2.
C. -1
D. 0
E. 1
F. 4

Answers

Step-by-step explanation:

its 4

Explain in words where this graph is increasing.

Answers

Answer:

at the third quadrent the graph is increasing

at third quadrent

The graph shown here is the graph of which of the following rational
functions
O A FO) = 2-3x+3
OB. AB) = x= 1962–31x-3
x-2
O C. FX) =

Answers

Given:

The graph of rational function.

To find:

The rational function.

Solution:

If the graph of a rational function has a vertical asymptote at [tex]x=a[/tex], then [tex](x-a)[/tex] must be a factor of the denominator of that rational function.

From the given graph it is clear that the graph has two vertical asymptotes. One is at [tex]x=-1[/tex] and another one is at [tex]x=3[/tex].

It means, [tex](x-3)[/tex] and [tex](x+1)[/tex] are the only two factors of the denominator of the rational function.

In option A, the factors of the denominator are different from [tex](x-3)[/tex] and [tex](x+1)[/tex] .

In option B, the denominator has an extra factor [tex]x-2[/tex].

In option C, the denominator has only two factors [tex](x-3)[/tex] and [tex](x+1)[/tex].

Therefore, the correct option is C.

What is the solution to the following system of equations? (-7x - 4y = 29,
3x - y = -7)*
A. (-5, -8)
B. (1,-9)
C. (0,7)
D. (-3,-2)

Answers

The answer is D: (-3, -2)

Factor: x2 + 30x – 70

Answers

Answer:

295

−15≈2.175564037

x=−

295

−15≈−32.175564037

Step-by-step explanation:

Answer:

x^2+30x−70

Step-by-step explanation:

Let's simplify step-by-step.

x^2+30x−70

There are no like terms.

Someone help me solve for x.

Answers

Answer:

y=6

Step-by-step explanation:

Thats my answer hope it helps

Can someone help me with this triangle??
Find missing side lengths

Answers

Answer:

Y=75 x=75

Step-by-step explanation:

This is a scalene triangle and the total of the degrees will always be 180. So 180-30=150

since there are two sides split 150 in 2. 150 divided by 2 = 75

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