Savannah is 9 years older thanDevante. The sum of their ages is 53. How old are Savannah and Devante?
(A) First write an equation you can use to answer this question. Use x as your variable.
The equation is _______
Answer: Devante is _______
and Savannah is ______

Answers

Answer 1

Answer:

Devante is 23 and Savannah is 32.

Step-by-step explanation:

We can set up a system of equations.

s - savannah's age

d - devante's age

s = d + 9

s + d = 53

Now we can substitute (d + 9) for s in the second equation.

(d + 9) + d = 53

2d + 9 = 53

2d = 46

d = 23

To find Savannah's age, we just add 9 to Devante's age. (plugging in 23 for d)

23 + 9 = 32

s = 32


Related Questions

3 Mei is a park ranger at Death Valley National Park in California.
She records the elevation relative to sea level at different points
in the park.
Elevation (m)
-32.6
24.7
-8.3
19.1
- 8.4
a. What is the mean of the elevations? Show your work.

Answers

Answer:

It is the quarter fourth of the elevation  

Step-by-step explanation:

The meaning of elevations is a high above meaning level

Answer:

Step-by-step explanation:

The mean is just the arithmetic average, the sum of numbers divided the number of terms.

m=(-32.6+24.7-8.3+19.1-8.4)/5

m=-5.5/5

m=-1.1

which one?

a)
b)
c)
d)

Answers

Answer:

d

Step-by-step explanation:

Answer:
d. 3/5

Explanation:
Shaded Area = 15
Total Area = 25

Q
100%
What is the sum of
1/2 and 0.75?

Answers

Answer:

1.25 or 1 1/4

Step-by-step explanation:

5+2+2(5)+3=4(5) plr help me​

Answers

Answer:

5+2+2(5)+3=4(5)

simplify

5+2+10+3=20 and  4(5)=20  

20=20

Answer: 20

Step-by-step explanation:

Simplify:

5+2+2x5+3

Remove parentheses:

5+2+2(5)+3=4(5)

Multiply the numbers 2x5=10:

5+2+10+3

Add the Numbers:

=20

Simplify (4)5 :

Remove Parentheses:

4 x 5

Multiply:

=20

20=20

Simplify the expression: 9-2X + 8 + x + 5x

Answers

Answer:

4x + 17

Step-by-step explanation:

9 - 2x + 8+ x + 5x

Add/Subtract the values with variables together and the same case for the values without any variables.

5x + x - 2x = 4x

9 + 8 = 17

So you'll end up with the following,

4x + 17

Find the slope of the line passing through the pair of points.
(-4,5) and (0, 2)

Answers

Answer:

y = 3/-4x + 2

Step-by-step explanation:

Answer:

slope = [tex]-\frac{3}{4}[/tex]

Step-by-step explanation:

1) To find the slope between a pair of points, use the slope formula: [tex]\frac{y_2-y_1}{x_2-x_1}[/tex].

[tex]x_1[/tex] and [tex]y_1[/tex] represent the x and y values of one point the line passes through. [tex]x_2[/tex] and [tex]y_2[/tex] represent the x and y values of another point the line also passes through. We know the line passes through (-4,5) and (0,2). So, substitute their x and y values for the formula (following the appropriate order) and solve:

[tex]\frac{(2)-(5)}{(0)-(-4)} \\= \frac{2-5}{0+4} \\= \frac{-3}{4}[/tex]

Thus, the slope is [tex]-\frac{3}{4}[/tex]

Use the graph to write a linear function that relates y to x.

y=

Answers

Answer:

y= -3x+1

Step-by-step explanation:

y=mx+b

find m: (y2-y1)/(x2-x1)

pick any two points: (-1,4) and (0,1)

plug them in: (4-1)/(-1-0)= -3=m

b is the y intercept which is 1=b

plug these into the equation for a line y=mx+b

y=-3x+1

please help
solve for x and b​

Answers

Answer:

2x + 60 = 4x( Vertically opposite angle)

60 = 4x - 2x

4x - 2x = 60

2x = 60

x = 60÷2

x = 30

2x + 60 + B = 180° ( Linear Pair )

2(30) + 60 + B = 180°

60 + 60 + B = 180°

120 + B = 180°

B = 180° - 120

B = 60

What is 3/8 written as a decimal? ​

Answers

Answer:

0.375

Step-by-step explanation:

3/8 = 0.375

Answer:

0.375

Step-by-step explanation:

Which expression is equivalent to 2 – 35?
Choose 1 answer:
A
2- (-35)
B
2+(-35)
-35 - 2
D
35 - 2
V

Answers

The answer is B: 2+(-35)

Answer:

The Correct answer is B

Step-by-step explanation:

35 - 2 is 33

so you just add a negative sign and you have your answer

Graph the following given a slope and a point m-1/2 b=2

Answers

Answer:

Here!

Step-by-step explanation:

Answer:

Step-by-stepexplanation:

The y axis is the vertical line. b is y intercept, meaning where the line crosses the y axis. here b is 2, so plot a point on (0,2). m is the slope. slope is rise/run, and your slope is -1/2. this means your rise is negative one, (go down one) and you run is positive two (go two to the right) and plot your point. then you connect this point to the first point and extend the line on both sides. hope this helps :)

quivaler
What is the decimal
equivalent for 15_?

Answers

Answer:

1/15

Step-by-step explanation:

5x - 3y = -28
4x + 6y = -14

Answers

Answer:

5x-3y is supposed to equal -15

Y= -2x/3

Bill drove 871 miles in 13 hours.

At the same rate, how many miles would he drive in 8 hours?

Please hurry! I need help ASAP!

Answers

Answer:

536 miles

Step-by-step explanation:

871/13 = 67

67*8 = 536

Answer:

536

Step-by-step explanation:

871 divided by 13 is 67

take 67 and times it by 8 and you have 536

please help me:) appreciated :) have a good day!!​

Answers

the answer is the second one cuz the total cost = dinner + tip

what is the answer to 7.7w-4.6w

Answers

Answer:

Its simple : 3.1w

Answer:

3.1w

explanation

A triangle has an angle that measures 25. The other two angles are in a ratio of 11:20. What are the measures of those two angles?

Answers

Answer:

The measures of the two angles are 55 and 100 degrees.

Step-by-step explanation:

The three interior angles of a triangle always add up to 180.

So if one angle is 25 degrees

180 - 25 = 155

The two other angles must add up to 155.

If the ratio is 11:20

That means there are 31 equal parts between the two angles

So 155/31 =5

Whic means

11 x 5 = 55

20 x 5 = 100

The two missing angles are 55 and 100 degrees.

Hope this explanation helped you!

Is this relation a function?

Answers

Answer:  I dont think so

Step-by-step explanation:

Ellie bought snacks for her team's practice. She bought a bag of oranges for $2.66 and a 5-pack of juice bottles. The total cost before tax was $7.46. Write and solve an equation which can be used to determine jj, how much each bottle of juice costs?

Answers

Answer:

(7.46-2.66)/5 do that and you have the answer (I'm lazy)

Step-by-step explanation:

The equation for jj is ($7.46 - $2.66) / 5 and the cost of each bottle of juice is $0.96

The first step to take in order to determine jj, is to determine the total cost of the  5-pack of juice bottles.

Cost of the  5-pack of juice bottles = Total cost before tax - cost of the bag of oranges

Cost of the  5-pack of juice bottles = $7.46 - $2.66 = $4.80

The second step is to determine the cost of each bottle of juice

The cost of each bottle of juice = Cost of the  5-pack of juice bottles / total number of bottles

$4.80 / 5

= $0.96

The previous steps can be summarized into this equation :

The cost of each bottle of juice = (Total cost before tax - cost of the bag of oranges) / total number of bottles

= ($7.46 - $2.66) / 5

= $0.96

To learn more, please check : https://brainly.com/question/24431689?referrer=searchResults

Which set of ordered pairs would define a line with a negative slope?

A.
(5, 5) and (0, 1)

B.
(3, 6) and (5, 1)

C.
(2, 3) and (7, 6)

D.
(2, 3) and (-4, -1)

Answers

Answer:

I believe it is B

Step-by-step explanation:

Im not good at explaing, but if you move forward three units and up 6, then draw a point, then go forward to 5 units and down to one unit and connect those dots, the line would be going down to the right

7 x ( h + 4 ) for h = 3

Answers

Answer:

is h is 3, then your answer would be 21 + 28 = 49

since 7 x 3 = 21 and 7 x 4 = 28 you add 21 and 28 which would get you 49

Answer:

h = 3

Step-by-step explanation:

7 x ( h + 4 )=7×(3+4)=7×7=49

the legs of a right triangle measure 5 inches and 7 inches if the theta is the the angle between the 5 inch leg and hypotenuse, cos
theta

Answers

9514 1404 393

Answer:

  cos(θ) = (5√74)/74

Step-by-step explanation:

The length of the hypotenuse is given by the Pythagorean theorem:

  h = √(5² +7²) = √74

The cosine of the angle is the ratio of the adjacent leg to the hypotenuse:

  cos(θ) = 5/√74 = (5√74)/74

PLEASE HELP!!!!!!!!!!!

Answers

Answer:

3

Step-by-step explanation:

Answer:

The correct answer is 3..

Lucas’s computer took 8 minutes to download 30 songs. How many seconds per song did it take his computer to download

Answers

It took 16 seconds to download each song
Hope this helps

distribute 2(9x + 2)

Answers

Answer:

18x+4

Step-by-step explanation:

Multiply 2 and 9x

Multiply 2 and 2

2 times 9x is 18x

2 times 2 is 4

In an equation, the answer is:

18x+4

Answer:

18x+ 4

Step-by-step explanation:

Just multiply the outside 2 to 9x and 4. I hope this helps :)

THE QUESTION IS IN THE PICTURE​

Answers

Answer:

It should be 56, sorry if i am wrong

Step-by-step explanation:

28 divided by 14 is 2

56 divided by 14 is 4

Answer:

56

Step-by-step explanation:

First, you simplify 2/4 to 1/2. Then you figure that 28 * 2= 56/1= 56.

To double check your answer, put 56 in the box and see if the two fractions equal each other.

SOMEONE PLEASE HELP ME WITH THIS I NEED HELP PLEASE ILL GIVE BRAINLY!!!!

Answers

the answer is a ^__^

PLEASE HELP!!!!!!!!!! Solve. −8y ≥ 56 y ≤ 7 y ≥ –7 y ≤ −7 y ≥ 7

Answers

Answer:

A

Step-by-step explanation:

the answer is

-8y>=56

-y>=7

y<=7

pls what is?

-2(x+3) simplified?

Answers

Your answer would be -2x-6

Answer:

Step-by-step explanation:

Here you go mate

Step 1

-2(x+3)  Question

Step 2

-2(x+3)  Simplify

(-2)(x)+(-2)(3)

Step 3

(-2)(x)+(-2)(3)  Add and subtract

-2x-6

Answer

-2x-6

Hope this helped

PLEASE HELP!!!

After selling several pairs of her shoes, Zoey had 24 pairs remaining. If she got rid of 40% of her pairs of shoes, how many did she have BEFORE selling?

Answers

She had 60 pairs of shoes before selling any
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