the value of a collectible coin can be represented by the equation y=2x+9.74 where x represents the number of years that consuello has owend the coin y represents the total value in dollars of the coin. what was the value of the coin when consuello originally purchased it?

9514 1404 393

Answer:

Step-by-step explanation:

Let x represent the number of liters of 40% solution in the mix. Then the total amount of acid in the mix is ...

  0.40x +0.05(10-x) = 0.20(10)

  0.35x +0.5 = 2.0

  0.35x = 1.5

  x = 1.5/0.35 ≈ 4.3 . . . . liters of 40% solution

  10-x = 10 -4.3 = 5.7 . . .liters of 5% solution

Answer:   The answer is 120

Step-by-step explanation:  you add 50+70 and u will get 120

Answer:

34

Step-by-step explanation:

Answer:

angle 1 = 135 degrees

Step-by-step explanation:

Answer:

6

Step-by-step explanation:

Answer:

m∠D = 14

Step-by-step explanation:

According to the vertical angle theorem, both of these angles are congruent.

This means that they are equal (m∠C = m∠D) and we can solve for x:

m∠C = m∠D

-x + 26 = 2x - 10 (substitute in the equations)

-3x + 26 = -10 (subtract 2x from both sides)

-3x = -36 (subtract 26 from both sides)

x = 12 (divide both sides by -3)

Now that we know what x is, we can find m∠D by plugging it back into the equation:

m∠D = 2x - 10

m∠D = 2(12) - 10 (substitute the value for x in)

m∠D = 24 - 10

m∠D = 14

The value of the variable 'x' will be 12. Then the measure of the angle D will be 14°.

The inclination is the separation seen between planes or vectors that meet. Degrees are another way to indicate the slope. For a full rotation, the angle is 360 °.

Vertically opposite angle - When two lines intersect, then their opposite angles are equal.

Angle C and angle D are vertical angles with m∠C = -x + 26 and m∠D = 2x - 10.

∠C = ∠D

-x + 26 = 2x - 10

3x = 36

x = 12

Then the measure of the angle D will be

m∠D = 2x - 10

m∠D = 2(12) - 10

m∠D = 24 - 10

m∠D = 14°

The value of the variable 'x' will be 12. Then the measure of the angle D will be 14°.

More about the angled link is given below.

https://brainly.com/question/15767203

#SPJ2

Answer:

Step-by-step explanation:

Area=7*7=49

?*7=49*2

?*7=98

?=98:7

?=14

will be nice if you give me brainlies.Good luck!

Answer:

y=x-5

Step-by-step explanation:

y=mx+b

if lines are parallel then that means the slope (m) is the same so the only thing left to change is the y-intercept (b). this can be anything but probably shouldn't be what the original was

Answer:

y = 25

X = 25/2 is the value of X an dy

Answer:

x=5

y=10

Step-by-step explanation:

4x-2y=0

-x-2y=-25

subtract

5x=0-(-25)

5x=25

x=25/5=5

-5-2y=-25

2y=-5+25

2y=20

y=20/2=10

Answer:

24%

Step-by-step explanation:You divide it by a hundred percent and overall it equals 24% since 24 out of one hundred (24/100) it would be 24% of that.

Now you owe me brainly. Thanks.(:

Answer:

Stretch of 2/3, right by 7

Answer:

2x club member ticket = 1x non-club member ticket

Answer:

she needs 3 packages

Step-by-step explanation:

the total area of the cd is 27 cm

so like

she needs to wrap 27 cm of area

because 0.5 cm by 14 cm by 12.5 cm added all together is 27

then

27 cm equals 10.6 inches

so now we need to find how many 300cm2 will fit into that 11 inch space

There are 0.00107639 square feet in a square centimeter.

but we want to know how many feet not square feet

0.00107639 × 27 =

0.02906253

2.906253

there are 2.906253 feet per suare foot

so 2.9 rounded up is 3

she needs 3 packages

Answer:

x = 96

z = 25

Step-by-step explanation:

x and 84 are supplementary angles.

this means that they add together to make 180.

using this, you can make the following equation:

x + 84 = 180

subtract 84 from both sides of the equation

x + 84 - 84 = 180 - 84

x = 180 - 84

x = 96

84 and 3z + 9 are vertical angles

vertical angles are equal.

using this, you can make the following equation:

84 = 3z + 9

subtract 9 from both sides of the equation

84 - 9 = 3z

75 = 3z

divide both sides of the equation by 3

75/3 = 3z/3

25 = z

Answer:

No solution

Step-by-step explanation:

4x + 2(2x - 3) = 8(x - 1)

4x + 4x - 6 = 8x - 8

8x - 6 = 8x - 8

0 = -2

There is no value of x makes the equation true.

Answer:

5^2 x 2^2 x 7

Step-by-step explanation:

Answer:

√3

Step-by-step explanation:

Factor 3 into its prime factors

          3 = 3  

Note that 3 is a prime number, it only has itself as a factor (that is on top of the trivial factor "1")

To simplify a square root, we extract factors which are squares, i.e., factors that are raised to an even exponent.

In our case however, all the factors are only raised to the first power and this means that the square root can not be simplified

The simplified SQRT looks like this:

        sqrt (3)  

Answer:

10000000013.4 or 13.44+10^10

Step-by-step explanation:

1. move the left 10^5 and switch it with the 4.65

2. It should look like: (2.891 * 4.65) + (10^5 * 10^5)

3. Simplify: 13.44 + 10^10

4. Your answer should look like 10000000013.4 or 13.44 + 10^10. WooHoo! You just finished!

Please do Brainliest answer that would be appreciated!

Answer:

7.541 * 10^5

Step by step:

add 2.891 with 4.65

then add the 10^5

(This is an easy version on how to solve it. There is a more complex version but it’s too long.)

Step-by-step explanation:

The area of rom boss is 78.00cm friend

Answer: 98.28 cm^2 Is your correct answer

Step-by-step explanation:

Hope this helps:)

Answer:

(2,[tex]\frac{5}{2}[/tex])

Step-by-step explanation:

Midpoint formula: M=([tex]\frac{x_{1} +x_{2} }{2}[/tex],[tex]\frac{y_{1} +y_{2} }{2}[/tex])

M=([tex]\frac{2+2}{2}[/tex],[tex]\frac{1+4}{2}[/tex])

=([tex]\frac{4}{2}[/tex],[tex]\frac{5}{2}[/tex])

=(2,[tex]\frac{5}{2}[/tex])

Answer:

x= 1.66 repeating

Step-by-step explanation:

Let's solve your equation step-by-step.

−2x=x−5

Step 1: Subtract x from both sides.

−2x − x = x − 5− x

−3x=−5

Step 2: Divide both sides by -3.

-3x/-3=-5/-3

Answer:

x=1.66 repeating

Answer:

6 for one CD and 5 for one DVD

Step-by-step explanation:

Answer:

w = xc/y

Hope this helps!

Answer:

y = x + 2

Step-by-step explanation:

Used slope formula to get a slope of 1

Line crosses y axis at (0,2)

Answer:

22

Step-by-step explanation:

Step 1: fill in the equation

(3-8)^2-3

Step 2: simplify

= -5^2-3

= 25-3

Step 3: solve

= 22

Answer:

This would change into (9 - 64) - 3 which would change to, -55 - 3 = -58

Step-by-step explanation:

Hope this helped!

Answer:

I HAVE THE SAME THING

Step-by-step explanation:

Answer:

27.98

Step-by-step explanation:

the second seven 27.9(7)7 is the hundreth place, so sense 7 is above five we round up to and eight, then get rid of the number after it