hii please help asap ill give brainliest thanks

Answer:

Number of $1 coins are 25 and number of 50 cent coins are 30.

Step-by-step explanation:

Let's set up the equations.

Let there are x number of $1 coins

There are y number of 50 cent coins

So, x+y =55

1 x+0.50 y =40

Solve the equations for x and y.

Solve the first equation for y.

y=55-x

Substitute y as 55-x into the second equation.

1 x+0.50(55-x)=40

Solve the equation for 'x'.

Distribute the 0.50 to get rid the ( ).

1 x+27.5-0.50 x= 40

Combine like terms

0.50 x +27.5=40

Subtract both sides 27.5

0.50 x =12.5

Divide both sides by 0.50

x=25

Now, plug in x as 25

y=55-25

y=30

So, number of $1 coins are 25 and number of 50 cent coins are 30.

Answer:

solution given:

: 4x2+8x+7=4

4x²+8x+7-4=0

4x³+8x+3=0

4x²+6x+2x+3=0

2x(2x+3)+1(2x+3)=0

(2x+3)(2x+1)=0

either

x=-3/2

or

x=-1/2

Answer:

By using SAS which stands for Side, Angle, Side.

Step-by-step explanation:

This means that if we have two angles and side measures that are equal to the corresponding angles and side measures of the other triangle then they are congruent.

Answer:

[tex]12 \times 4 = 48 \\ 8 \times 6 = 48[/tex]

=> These 2 multiplication facts are equal to 48.

Answer:

$16,750

Step-by-step explanation:

It took a lot of plugging in and guessing

The formula used was 16750(1+.04)^1

That equaled 17420

17420-16750 is 670

Hope this helps

Answer:

Step-by-step explanation:

Carla's reading rate is

 2/8 book

----------------- or 1/4 book/hr.

   1 hr

Then, in 3 hours, she could read 3(1/4 book/hr) = 3/4 book in 3 hrs

Answer:

1 1/5

Step-by-step explanation:

To add fractions there are Three Simple Steps: Step 1: Make sure the bottom numbers (the denominators) are the same, Step 2: Add the numerators, put that answer over the denominator, Step 3: Simplify the fraction (if needed)

Mark me brainliest please!

Answer:

Letter C

Step-by-step explanation:

Answer:

A. octagon would be formed by a cross-section parallel to the base of a octagonal pyramid.

Answer:

looks like a line kinda

Step-by-step explanation:

Answer:

A Jenna

Step-by-step explanation:

Because if Jenna received 22% votes and Jordan, Kelsey, Nathan received less 20 percentage that means Jenna won for school president.

Answer:

29

Step-by-step explanation:

18+3|6-25|-11

21+19-11

29

Answer:

4000

Step-by-step explanation:

[tex]\huge{\textbf{\textsf{{\color{pink}{An}}{\red{sw}}{\orange{er}} {\color{yellow}{:}}}}}[/tex]

Ur answer is

3286 tiny frogs sitting next to each other would measure the same length as a Blue Whale.

Answer:

Step-by-step explanation:

Question

Find the perimeter of a triangle with vertices A(2,5) B(2,-2) C(5,-2). Round your answer to the nearest tenth and show your work.​

perimeter of a triangle = AB+AC+BC

Using the distance formula

AB = sqrt(-2-5)²+(2-2)²

AB = sqrt(-7)²

AB =sqrt(49)

AB =7

BC = sqrt(-2+2)²+(2-5)²

BC = sqrt(0+3²)

BC =sqrt(9)

BC =3

AC= sqrt(-2-5)²+(2-5)²

AC= sqrt(-7)²+3²

AC =sqrt(49+9)

AC =sqrt58

Perimeter = 10+sqrt58

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In the field of astronomy, the ability to measure angles accurately and precisely enables us to calculate the position and relative movement of the stars and galaxies in relation to each other, to determine how far distant they are from us, and even to estimate their relative size.

Answer:

z=7

Step-by-step explanation:

3z+5=4z-2

5=4z-2-3z

5=z-2

5+2=z

7=z

z=7

Answer:

linear.

rotary.

reciprocating.

oscillating.

hope it wil help you

Answer:

30 in^3

Step-by-step explanation:

Radius = 1/2 D; 2/2 = 1

(3)(1^2)(10) = 30

Answer:

c)

(-6, 3)

d) (-3,0)

cion...

What will be the new position of the given point (9,-4) after reflection across

the line x = 1?

ractice

a)

(7,4)

b) (7,-4)

c)

(-7,-4)

d) (-7,4)

Answer:

48 ft^2.

Step-by-step explanation:

In this case, our formula is known as 3s^2 which can be written out as 3 x s x s or 3(s x s). S is the variable to represent our length and width because the formula for finding the area is l x w which can be written out as length x width. If the total area of each garden bed has a length of 4 feet, our equation would be 3(4 x 4) or 3 x 4 x 4 or 3(4)^2. 4 x 4 or 4^2 is 16. If we multiply 16 by 3, the answer would be 48. That is why the total area of each garden bed would be 48 ft^2.

Answer:

i think kevin made $7.50 more than clark

Step-by-step explanation:

25% of 50 is 12.5. 50-12.5= 37.5

40% of 50 is 20. 50-20=30

Step-by-step explanation:

Use the Pythagorean Theorem ( [tex]a^{2}+b^{2} =c^{2}[/tex] )

The longest side is c = the hypotenuse, and a and b = the other sides of the triangle.

a = 4                              First: [tex]4^{2}+x^{2}=8.5^{2}[/tex]

b = x                         Second: [tex]16+x^{2}=72.25[/tex]  

c = 8.5                          Third: [tex]x^{2}=56.25[/tex]

                                  Fourth: [tex]x=\sqrt{56.25}[/tex]

                                      Fifth: x = 7.5

Answer:

_4

Step-by-step explanation:

I took the quiz in the car 100

If we want to make the graph wider, then we must have a horizontal dilation, so the correct option will be 1/4.

A horizontal dilation is a transformation that makes the graph of a function wider.

For a function f(x) an horizontal dilation of scale factor k (with k > 1) is written as:

g(x) = f(x/k)

For the case of the absolute value function we will have:

g(x) = |x/k| = (1/k)*|x|

So we need to find the value (1/k).

Remenber that k > 1, then 0 < (1/k) < 1.

This means that the only values between 0 and 1 could fill the blank in such a way that the graph of that function is wider than the one of the parent function, so from the given options, we will take:

1/k = 1/4

Then the function is:

g(x) = (1/4)*|x|

This function will have a graph wider than the one of f(x) = |x|

If you want to learn more about transformations, you can read:

https://brainly.com/question/17586310