Jack is 2 times as old as Lacy. 5 years ago the sum of their ages was 20. How old are they now?

Answers

Answer 1

Answer:

2x-6=8

2x-6=8+6

2x=24

x=12


Related Questions

Best answer gets brainiest. Katie's math class starts at 10:15 A.M. and lasts for 1 hour and 55 minutes. After math class, Katie has recess for 35 minutes. What time does Katie's recess end?

Include A.M. or P.M. in your answer.

Answers

Answer:

12:45 PM

Step-by-step explanation:

First, add the time of the math class:

10:15 AM + 1 hour

= 11:15 AM

11:15 AM + 55 minutes

= 12:10 PM

Then, add the time of recess:

12:10 PM + 35 minutes

= 12:45 PM

So, her recess ends at 12:45 PM

Answer:

Recess Ends at 12:45 PM

Step-by-step explanation:

10:15 + 1 hour and 55 minute= 12:10 PM

12: 10+ 35 min= 12:45 PM

How does the value of a in the function affect its graph when compared to the graph of the quadratic parent function?
h(x) = -0.19x2
In what ways is the graph of h(x) different from the graph of the parent function? Select all that apply.

A. The graph of h(x) opens upward.
B. The graph of h(x) opens downward.
C.The graph of h(x) is narrower.
D. The graph of h(x) is wider.

Answers

9514 1404 393

Answer:

  B. The graph of h(x) opens downward.

  D. The graph of h(x) is wider.

Step-by-step explanation:

The negative leading coefficient causes the graph to be reflected across the x-axis, making it open downward.

The leading coefficient magnitude less than 1 compresses the graph vertically, giving it a wider appearance.

What is the perimeter of the triangle?



a
84 in
b
94 in
c
74 in
d
64 in

Answers

Answer:

The answer is C

Step-by-step explanation:

We alsreadyknow that 37 and 12 is the 2 given lines.  and  The last line is not 37 but pretty close making C the answer.

Answer:

D) 64 In

Step-by-step explanation:

P=12+37+64

If there are 13 pretzels in each cup, How many pretzels does He eat?

Answers

How many cups are there? You are missing information.

Answer:

Step-by-step explanation:


What is an equation of the line that passes through the points (-2, 1) and (-6,-5)

Answers

Answer:

y=3/2x+4

Step-by-step explanation:

I am pretry sure

Someone please help look at the picture please anything would help

Answers

The first two are no then the last one is yes :)

Identify the graph that displays the speed of a car accelerating onto a highway until it reaches the speed limit, and then continuing on the highway at the speed limit. ​

Answers

Answer: D

Step-by-step explanation:

Graph D shows the car increasing speed over time, then, the flat line shows the car remains at a constant speed. In order for the scenario to apply, there needs to be a line parallel to the x-axis which shows a speed remaining the same over a given amount of time. D is the only graph which has this feature, thus this graph displays the scenario.

Solve the expression. 0.02 × 0.3
A. 0.6
B. 0.06
C. 0.006

Answers

c. 006 is the answer

plz help! will give brainliest!

Answers

Answer:

B

Step-by-step explanation:

The graph shows 3 spaces up every our on the y axis I hope this helped you! im very good at these so I can help is u have more questions! can I have brainliest? I was the first

Answer: 3 miles per hour

Step-by-step explanation:

looking at the graph you have (1,3)  (2,6) and (3,9) and everytime its multiplying by 3... 1x3=3 , 2x3=6, 3x3=9

Therefore, your answer is 3 miles per hour

Write the linear equation in slope-intercept form, 5x − 2y = 10

Answers

Answer:

y=5x-2

Step-by-step explanation:

1. Which equation does not match the diagram? A. 6 +3x= 30
B. 3(x+6) = 30
C. 3x = 30- 6
D. 30 = 3x + 6 ​

Answers

Answer:

B

Step-by-step explanation:

The solution is Option B.

The equation which does not satisfy the relation is 3 ( x + 6 ) = 30

What is an Equation?

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

Let the number of x in the diagram be = 3

So , the total number of x = 3x

The sum of the values in the box = 30

So , the equation will be

6 + x + x + x = 30

On simplifying the equation , we get

6 + 3x = 30   be equation (1)

a)

6 + 3x = 30

The equation satisfies

b)

3 ( x + 6 ) = 30

On simplifying the equation , we get

3x + 18 = 30

The equation does not satisfy

c)

3x = 30 - 6

Adding 6 on both sides of the equation , we get

3x + 6 = 30

The equation satisfies

d)

30 = 3x + 6

The equation satisfies

Hence , the equation which does not satisfy the relation is 3 ( x + 6 ) = 30

To learn more about equations click :

https://brainly.com/question/19297665

#SPJ5

Find the slope of the line that passes through the pair of points.
4. (1, 6), (6, -1)
7
a.
5
b.
5
7
c.
7
5
d.
5
7

Answers

Answer:

-7/5

Step-by-step explanation:

Find the perimeter of the large triangle

Answers

Answeeeeeeeeeeerrrrrrrrrrrrrrr:

36

Which of the following equations are linear?
Hint: Two of them are linear.

1. y = 7/x
2. y = 3x + 4
3. 3x + 4y = 24

Answers

Final Answer: They are all Linear

Steps/Reasons/Explanation:

Question: Which of the following equations are linear?

1. [tex]y = \frac{7}{x}[/tex] Linear

2. [tex]y = 3x + 4[/tex] Linear

3. [tex]3x + 4y = 24[/tex] Linear

Because a linear equation is an equation of a straight line, it means that the degree of a linear equation must be 0 or 1 for each of its variables.

~I hope I helped you :)~

Can someone help me please

Answers

Answer:

time is Y-axis and gallons is x-axis

Please give me the correct answer ​

Answers

Answer:

5×1,000,000,000

Step-by-step explanation:

since 5×1=5

5×1,000,000,000 would be 5,000,000,000

this is what I think and I'm sorry if I'm wrong

Casey walked 2.1 miles to the grocery store. She then walked 0.5 miles to the post office and 0.8 miles to work. How far did she walk in total? Convert your answer into kilometers.

Answers

Answer:

3.4 miles and 5.472 kilometers

How much simple interest would Kaitlin earn on $300 at 6% for 3 months?

A. 27

B. 9

C. 54

D. 18

Answers

Answer:

C) $54.00

Step-by-step explanation:

300*6%*3

300*0.06*3

which is $54.

Hope this helps plz hit the crown :D

The correct answer is C

failed my elementary statistics college class, 1st semester, can i retake the same class? or no

Answers

Answer:

I think you can

Step-by-step explanation:

Answer:

I think you can take it in the next semester

Step-by-step explanation:

Kelly read 30 pages of her 300-page book in 6 hours. At this rate, how long will it take her to read the entire book? (5 points) 6 hours 5 hours 60 hours 30 hours

Answers

Answer:

It is 60 hours

Step-by-step explanation: 30 pages = 6 hours

30 × 10 = 300

6 × 10 = 60

Answer:

60

Step-by-step explanation:

trust me

Independent random samples of released prisoners in the fraud and firearms offense categories yielded the given information on time served in months. At the 1% significance level, do the data provide sufficient evidence to conclude that the meantime served for fraud is less than that for firearms offenses? Assume that populations standard deviations are the same for both groups. (i.e., we assume σ1 = σ2 .)

Answers

Answer:

Since the computed value of t= -4.654 does not fall in the critical region we therefore accept the null hypothesis . We conclude that there is sufficient evidence to indicate a difference in the means time served for fraud is less than that for firearms offenses.

Step-by-step explanation:

Fraud                                        Firearm

15.2      9.2                              20.1          15.7

11.2       15.8                             20.4          9.8

7.2         5.2                             13.1           13.5

7.7         4.9                            20.7           23.1

7.4        9.8                            10.4            22.2            

∑ 93.6                                             169                    

Fraud  (X1i)²                                      Firearm(X2j)²

231.04      84.64                           404.01          246.49

125.44      249.64                          416.16          96.04

51.84        27.04                            171.61           182.25

59.29       24.01                            428.49           533.61

54.76        96.04                            108.16           492.84

∑1003.79                                                  3079.66          

We formulate the null and alternative hypothesis as

H0: μ1 - μ2 ≤ 0 i.e. the fraud meantime is less than that for firearms offenses.

Ha: μ1-  μ2  > 0  i.e. the fraud meantime is greater than that for firearms offenses.

We set the significance level at ∝= 0.01

The test statistic, if  H0 is true , is

t=  x1`1- x`2/ Sp√1/n1+ 1/n2

which has a student t- distribution with ν= n1+ n2 -2 = 18 degrees of freedom

The critical region consists of all t- values which are greater than or equal to  t> t(0.01)(18)= 2.522

Computations :

X1`= ∑X1i/n1 = 93.6/10= 9.36

X2`=∑X2j/n2=169/10 = 16.9

∑( X1i- x`1)² = ∑X1i²- (∑X1i)²/n1

= 1003.79 - 876.096/10

= 100.379- 87.6096

=12.7694

∑( X2j- x`2)² = ∑X2j²- (∑X2j)²/n2

= 3079.66 - 28561/10

= 3079.66- 2856.1

=223.56

Sp²= 12.7694+223.56/18= 13.129

Sp = √13.129 =3.623

t= 9.36-16.9/ 3.623√0.1+0.1

t= -7.54/ 1.62

t= -4.654

Conclusion: Since the computed value of t= -4.654 does not fall in the critical region we therefore accept the null hypothesis . We conclude that there is sufficient evidence to indicate a difference in the means time served for fraud is less than that for firearms offenses.

The meantime served for fraud is less than that for firearms offenses.

A customer ordered a product online for $299 and was charged an additional $10 for shipping and handling. The customer received a rebate of $99 and a $25 credit for turning in an old cell phone. After a tax of 4% was applied, how much did the customer pay for the product?

Answers

Answer:

the  amount paid by the customer for the product is $192.40

Step-by-step explanation:

The computation of the amount paid by the customer for the product is shown below:

= Total amount + Total amount × tax rate

= ($299 + $10 - $99 - $25) + ($299 + $10 - $99 - $25) × 0.04

= $185 + 185 × 0.04

= $185 + $7.4

= $192.40

Hence, the  amount paid by the customer for the product is $192.40

We simply applied the above formula so that the correct value could come

And, the same is to be considered

Last year, Jeffrey grew 5/8 of an inch and his brother grew 1/2 of an inch. How much more
did Jeffrey grow than his brother?
Simplify your answer and write it as a fraction or as a whole or mixed number.

Answers

Answer:

Jeffrey grew 1/8 inch more than his brother

Step-by-step explanation:

5/8 - 1/2 = 5/8 - 4/8 = 1/8

Answer:

[tex]\frac{5}{4}[/tex] [tex]or[/tex] [tex]1.25[/tex]

Step-by-step explanation:

[tex]\frac{5}{8}[/tex] ÷ [tex]\frac{1}{2}[/tex] = [tex]?[/tex]

[tex]\frac{5}{8}[/tex] = [tex]0.625[/tex]

[tex]\frac{1}{2}[/tex] = [tex]0.5[/tex]

[tex]\frac{0.625}{0.5}[/tex] = [tex]\frac{5}{4}[/tex]

[tex]Therefore,[/tex] [tex]\frac{5}{4}[/tex] [tex]is[/tex] [tex]the[/tex] [tex]answer.[/tex]

Hope this helps! <3

what are 2 ratios equivalent to 2:12​

Answers

Answer:

possible answers include 1:6 and 4:24

Step-by-step explanation:

think of ratios like fractions. you can simplify a fraction by dividing each number by the same factor. 2/12 = 1/6 because you divide the top and bottom by 2. now, you need ANOTHER response. if you can divide the top and bottom you can also multiply. 2/12 now multiply 2 and 12 by 2 and you get 4/24.

Help plz 13. Mildred is flying a kite on a 30 m string. The angle of elevation of the kite measures 40 degrees,
and Mildred's hand is 2 m above the ground. About how high is the kite off the ground?
a. 21.3 m
c. 19.3 m
b. 25 m
d. 23 m

Answers

Answer: 21.3m

Step-by-step explanation:

The height of the kite of the ground would be calculated as:

We have to calculate the question using a right angled triangle that has angle ACB as 90° while angle CAB will be 40°.

Therefore, the height of the kite would be:

= 30 sin 40 + 2

= 30 (0.6428 ) + 2

= 19.284 + 2

= 21.284 m

= 21.3 m

Which One Does Not Belong? Use a complete sentence to explain your choice.
5 + 5
2 + 8
9 + 1
3 +9

Answers

Answer:

3 +9 does not belong because it doesn't equal 10 like the rest of them do.

what value of b makes the trinomial below a perfect square?
X^2-bx+100

a- 10
b-20
c-5
d-50

Answers

Answer:

Step-by-step explanation:

1. Perfect square trinomials, are 2nd degree polynomials, of the form           so that , which can be written as perfect squares.

2. For example

3. Thus  are perfect square trinomials.

4.

5. In the first case -b=20, so b=-20. In the second case, -b=-20, so b=20.

6. b∈{-20, 20}

Answer:

b) 20

Step-by-step explanation:

x^2-20x+100 If you factor it, it would be (x-10)^2

HELP WILL GIVE BRAINLIEST IF CORRECT

Answers

Answer is C. Rate if correct please

Answer:

hiii

your answer is option c

HOPE IT HELPS YOU OUT PLEASE MARK IT AS BRAINLIEST AND FOLLOW ME PROMISE YOU TO FOLLOW BACK ON BRAINLY.IN

Please Help Fast I Don't Know

Answers

Answer:

376 people

Step-by-step explanation:

25% is 94

to get the there 75% divide 94 by 25% or .25 and you get 376. 25% of that is 94.

Alright i believe the answer is 376, to find the answer we need to find the percent of 1/4 and it is 25% so now i must find how many 25's can fit into the 100% or the whole, in this case 4 can fit into it so now i must multiply 94 * 4 = 376

so i think that is the answer is 376...

I hope this helps!

Amelia wants to rearrange the furniture in her room. She makes a scale drawing of her rectangular room,
in which every 2 inches represents 5 feet. On her scale drawing, the area of the room is 24.96 square
inches. If one side of her room is 12 feet long, how long is the other side of her room, in feet?

Answers

Answer:

The other side = 13 feets long

Step-by-step explanation:

Given that :

Scale of drawing : 2 inches represents 5 feets

Area of rectangular room according to scale drawing = 24.96 in²

Length of one side of the room = 12 feets

Length of other side = x

Area of rectangle = Length * width

If :

2 inches = 5 feets

x = 12 feets

x = (12 *2) / 5

x = 4.8 inches

Hence,

For the scaled drawing :

4.8 * width = 24.96

Width = 24.96 / 4.8

Width = 5.2 inches

Converting to feets according to scale:

2 inches = 5 feets

5.2 inches = x feets

x = (5.2 * 5 ) / 2

x = 13 feets

Other side is 13 feets long

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