Determine if you have to add or subtract. Then find out y's value and then x's value.

2x+3y=23
-2x+y=13​

Answer:

A,B,D

Step-by-step explanation:

right on edge

Answer:

A,B,D

Step-by-step explanation:

Answer:

4 seconds

Step-by-step explanation:

Given

[tex]h(t) = -25t + 100[/tex]

Required

Determine what time it hits the ground

When the ball is on the ground, the height is at 0

i.e.

[tex]h(t) = 0[/tex]

Substitute 0 for h(t) in [tex]h(t) = -25t + 100[/tex]

[tex]0 = -25t + 100[/tex]

Collect Like Terms

[tex]25t = 100[/tex]

Solve for t

[tex]t = 100/25[/tex]

[tex]t = 4[/tex]

Hence, the ball will hit the ground in 4 seconds

Answer:

Mario would like to ride Hurricane coaster.

Gravity coaster travels at a unit rate of 34 m/s.

Step-by-step explanation:

Distance traveled by Gravity coaster = 340 meters

Time taken by Gravity coaster = 10 seconds

Distance traveled by Hurricane coaster = 190 meters

Time taken by Hurricane coaster = 5 seconds

Unit rate is nothing but the distance traveled by each coaster in unit time.

To find the unit rate, we can use the following formula:

[tex]Speed = \dfrac{Distance}{Time}[/tex]

Unit rate or speed of Gravity coaster = [tex]\frac{340\ m}{10\ s} = 34\ m/s[/tex]

Unit rate or speed of Hurricane coaster = [tex]\frac{190\ m}{5\ s} = 38\ m/s[/tex]

So, the faster coaster is the Hurricane coaster.

Mario would like to ride Hurricane coaster.

Gravity coaster travels at 34 m/s.

Answer:

I think it smells like a grandma but a strong one but it also smells good a little

Step-by-step explanation:

Answer:

typing 16 words in 2/3 of a minute

Step-by-step explanation:

very very sorry for the late response wish i could have seen this earlier

Step-by-step explanation:

Answer:

typing 16 words in 2/3 of a minute

Step-by-step explanation:

Answer: Uh, hurray?

Step-by-step explanation: I can do 100 in a minute

Answer:

um are you saying i have to do this?

Step-by-step explanation:

n o not happening i've never been good at push-ups

Answer:

6 times 16 equals 96 divided by 2 (or half) equals 48

Step-by-step explanation:

Answer:

It's C.

Step-by-step explanation:

If you get both of them you can get the real answer

Answer:

its 5

Step-by-step explanation:

because  4+2=6 divide 30 by 6 and that will give you 5  

Answer:

as a mixed number it will be 1 13/15

but in exact form it will be 28/15

Step-by-step explanation:

hope this helped.. :)

[tex]1\frac{13}{15}[/tex] is the solution for [tex]3\frac{10}{15}[/tex] - [tex]1\frac{12}{15}[/tex]

Fractions represent the parts of a whole or collection of objects.

The given expression is

[tex]3\frac{10}{15}[/tex] - [tex]1\frac{12}{15}[/tex]

Firstly we need to convert this mixed fraction to improper fraction.

Improper fractions are fractions whose numerator is greater than denominator.

((15×3)+10)/15 -  ((15×1)+12)/15

(45+10)/15 - (15+12)/15

55/15-27/15

15 is the LCM

(55-27)/15

28/15

Now we convert this to improper fraction

[tex]1\frac{13}{15}[/tex]

Hence [tex]1\frac{13}{15}[/tex] is the solution for [tex]3\frac{10}{15}[/tex] - [tex]1\frac{12}{15}[/tex].

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Answer:

5.3 hours

Step-by-step explanation:

Ashley recently opened a store that uses only natural ingredients. She wants to advertise her products by distributing bags of samples in her neighborhood. It takes Ashley 2/3 of a minute to prepare one bag. It takes each of her friends 75% longer to prepare a bag. How many hours will it take Ashley and 4 of her friends to prepare 1575 bags of samples?

Time it takes 1 person to preprate one bag = 2/3 min

Time it takes each friend of Ashley: 75% more than 2/3 min

75% × 2/3 minutes

=75/100 × 2/3 minutes

= 0.75 × 2/3

= 0.5 min

= 1/2 minutes

Friends = 2/3 min + 1/2 min = 7/6 min per friend

Time it takes Ashley and the 4 friends working along to prepare one bag:

Ashley's time per bag = 1 bag / (2/3) min

= 3/2 bag/min

Ashley's friends time per bag = 1 bag / (7/6) min

= 6/7 bag/min

Total = 3/2 bag/min + 4 × 6/7 bag/min

= (3/2 +24/7)

= 69/14 bag/min

Time it takes to prepare 1575 bags of samples = number of bags / number of bags per min

= 1,575 bags / (69/14) bags/min

= 319.56 min

Convert to hours:

356.56 min / 60 min per hour

= 5.3 hours

Answer:

3.5 hrs

Step-by-step explanation:

Khan Academy!

Answer:

-14

Step-by-step explanation:

Answer:

No

Step-by-step explanation:

The function is not one to one because there are multiple x-values for each y-value.

Answer:

[tex]y=\frac{9}{4}x-\frac{55}{4}[/tex]

Step-by-step explanation:

Slope-intercept form: y = mx + b

Slope formula: [tex]\frac{y2-y1}{x2-x1}[/tex]

Given points: (3, -7), (7, 2)

(3, -7) = (x1, y1)

(7, 2) = (x2, y2)

To write the equation in slope-intercept form, we need to find the slope(m) and the y-intercept(b) of the equation.

First, let's find the slope. To do this, input the given points into the slope formula:

[tex]\frac{2-(-7)}{7-3}[/tex]

Simplify:

2 - (-7) = 2 + 7 = 9

7 - 3 = 4

[tex]\frac{9}{4}[/tex]

The slope is [tex]\frac{9}{4}[/tex].

To find the y-intercept, input the slope and one of the given points(in this example I'll use point (7, 2)) into the equation and solve for b:

[tex]2=\frac{9}{4}(7)+b[/tex]

[tex]2=\frac{63}{4}+b[/tex]

[tex]-\frac{55}{4} =b[/tex]

The y-intercept is [tex]-\frac{55}{4}[/tex].

Now that we know the slope and the y-intercept, we can write the equation:

[tex]y=\frac{9}{4}x-\frac{55}{4}[/tex]

Answer:

7, 10, 14 would be the answer

Answer:

16,200 im not sure if its right just multiply everything then add to multiplication x3

Answer:

$52.45

Step-by-step explanation:

the tax is $2.50, if we add that to $49.95 we get $52.45

Total cost will be $52.45.

What is Percentage?

A relative value indicating hundredth part of any quantity is called percentage.

Given that;

Cost of shoes = $49.95

Tax = 5%

Now,

The value of tax = 49.95 × 5%

                         = 49.95 × 5/100

                         = 2.50

So, Total cost =  $49.95 + $2.50

                     = $52.45

Thus, Total cost will be $52.45.

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Solve for c in x^2 = 441

Taking the square root of both sides x = 21

Now x^3 = 21^3 = 9,261

The answer is 9,261

The solution is x² is to 441 as x³ is to 9261

What is 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 ,

x² = 441

Taking square roots on both sides , we get

x = 21

Therefore , x³ = 21 × 21 × 21

x³ = 9261

Hence , x² is to 441 as x³ is to 9261

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Answer:

I hope this helps please name me brainliest

Step-by-step explanation:

Answer:

No, they are not

Step-by-step explanation:

Answer:

Step-by-step explanation:

A

1.You can recognize exponential and linear function by their graph.Linear functions are straights while exponential functions are curved lines.You can also recognize them by the change in your.If the same number is being added to y,then the function has a constant change and is linear.3:-An example of a exponential function is the growth of bacteria and A common equation,y=mx+b y=mx+b,(namely the slope-intercept form,which we will learn more about later)is a example of a linear function.2:-For constant increments in x,a linear growth would increase by a constant difference,and an experimental growth would increase by a constant ratio.

Answer:

30

Step-by-step explanation:

Answer:

British Government

Step-by-step explanation:

Answer:The Croatan

Step-by-step explanation: I am literally on the module two exam and it’s obvious Plus I read about this

Answer:

9. MP = 49

10. VT = 62

Step-by-step explanation:

#9

∵ In the rhombus, all the sides are equal in length

∵ MNOP is a rhombus

∵ MN = NO = OP = PM

∵ MN = 9x - 77

∵ OP = 3x + 7

→ Equate them to find x

∴ 9x - 77 = 3x + 7

→ Add 77 to both sides

∴ 9x = 3x + 84

→ Subtract 3x from both sides

∴ 6x = 84

→ Divide both sides by 6

∴ x = 14

→ Substitute the value of x in the expression of OP to find its length

∵ OP = 3(14) + 7 = 42 + 7

∴ OP = 49

∵ All the sides are equal in length

∴ MP = 49

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#10

∵ The diagonals of the square bisect each other

∵ STUV is a square

∵ SU and TV are its diagonals

∴ W is the mid-point of SU and TV

∴ SW = WU

∵ SW = 2x + 13

∵ WU = 8x - 41

→ Equate them to find x

∴ 8x - 41 = 2x + 13

→ Add 41 to both sides

∴ 8x = 2x + 54

→ Subtract 2x from both sides

∴ 6x = 54

→ Divide both sides by 6

∴ x = 9

→ Substitute x in the expression of SW to find it

∵ SW = 2(9) + 13 = 18 + 13

∴ SW = 31

∵ SU = SW + WU

∵ SW = WU

∴ SU = 31 + 31 = 62

∵ Diagonals of the square are equal in length

∴ SU = VT

∴ VT = 62

Answer: -17

Explanation: If g(x) = 4x - 5, then g(-3) = 4(-3) - 5 which simplifies to -17.

Answer:

We get electricity, that's all the evidence

Step-by-step explanation:

Have a GOOD DAY

We will use the idea that "energy is the ability to cause change" to study the interaction between wind and the blades of a turbine.

This is actually really trivial, if we look at the blades and they are stopped, then we can conclude that there is no wind, thus there is no energy. (By the Newton's laws, we know that there must be a force to change the movement of something).

Now if wind comes, the wind will cause a force on the blades making them rotate.

So a form of energy comes, mechanical energy, and we can see how it produces changes.

Then by the rotation of the blades, there are dynamos that can be used to charge and store energy, this is (roughly) how a wind turbine works.

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