Mei Mei finds some dimes and quarters in her change purse. How much money (in dollars) does she have if she has 7 dimes and 12 quarters? How much money (in dollars) does she have if she has xx dimes and yy quarters?

Answers

Answer 1

Answer:

$3.70

Step-by-step explanation:

4 quaters= 1$

4=1

8=2

12=3

7 dimes =70

so there for

$3.70

Answer 2

Answer:

$3. 70

Step-by-step explanation:

Each dime equals 10 cents. There are 7 dimes. 10+10+10+10=10+10+10= 70

Each quarter equals 25 cents. add 25, 12 times, 25,25,25,25,25,25,25,25,25,25,25,25=300. Just add a decimal.


Related Questions

f(x) = x(x - 1)

g(x) = 3x
find (f*g)(6)

Answers

Step-by-step explanation:

Given functions:

f(x) = x(x - 1)g(x) = 3x

Find (f*g)(6):

(f*g)(6) = f(6)*g(6) = 6(6 - 1)*3(6) = 30*18 = 540

In case it is a composite function (f · g)(6) the answer is different:

(f · g)(6) = f(g(6)) = f(3*6) = f(18) = 18*(18 - 1) = 306

Step-by-step explanation:

[tex] \sf{ \longmapsto(6(6-1))×3(6)}[/tex]

[tex] \sf \longmapsto{ = 30 \times 18}[/tex]

[tex] \sf \longmapsto \boxed{ = \red{5} \blue4 \pink0}[/tex]

I WILL GIVE BRAINLIEST
Solve each given equation and show your work. Tell whether each equation has one solution, an infinite number of solutions, or no solution. Explain your answers.
(a) 2x + 4 (x - 1) = 2 + 4x
(b) 25 - x = 15 - (3x + 10)
(c) 4x = 2x + 2x + 5 (x - x)

Answers

Answer:

3

10

I'd.k the last one

Step-by-step explanation:

I'm just using characters bc it says I need at least 20

Answer:

a) x = 3

b) 4x

c ) 9x - x

Step-by-step explanation:

a)2x + 4(x -1) = 2 + 4x

2x + 4x - 4 = 2 + 4x

2x[ + 4x [- 4 = 2 [+ 4x

2x + 4x - 4x = 2+4

2x = 6

(Simply both sides by 2)

X = 3

b)25 - x = 15 - (3x + 10)

25 - x = 15 - 3x + 10

25[ - x = [15[ - 3x [+ 10

25 - 15 - 10 = 3x + x

0 = 4x

4x

c)4x = 2x + 2x + 5 (x - x)

4x = 2x + 2x + 5x - 5x

[+4x =[ 2x[ + 2x[ + 5x[ - 5x

2x+ 2x + 5x -5x - 4x

(2x+ 2x + 5x) (-5x - 4x)

9x - x

1 square yard
What is the area?
10 square yards
8 square yards
12 square yards

Answers

Answer:

Step-by-step explanation:

area of 1 square=1 yd²

area of 10 squares=?

Fifteen less than three times an integer is at most 54 what is the largest integer that could be used for the number

Answers

Answer:

22

Step-by-step explanation:

let 'x' = integer

3x - 15 < 54

3x < 69

x < 23

largest integer less than 23 is 22

Solve. 10−2x=3x+7
PLEASE HELP!

Answers

Answer:

x=5/3

Step-by-step explanation:

10-7=3x+2x

3=5x

x=5/3

Answer:

3/5

Step-by-step explanation:

rerange terms

10−2x=3x+7

−2+10=3+7

subtrace 10 on each side

−2+10−10=3+7−10

then simplify

PLEASE HELP

Which of the following is the solution set of the given equation?

(x-3) -2(x+6) = -5

O{-4}
O {8}
O{-10}​

Answers

(X-3)-2(x+6)=-5 Answer is -10

Answer:

-10

Step-by-step explanation:

(x-3)-2(x+6)=-5

x-3-2(x+6)=-5

x-3-2x-12=-5

x-2x-3-12=-5

-x-3-12=-5

-x-15=-5

-x=-5+15

-x=10

x=-10

Put the following equation of a line into slope-intercept form, simplifying all fractions.

2x+2y=-4

Answers

Answer:

y = -x-2

Step-by-step explanation:

slope-intercept form: y=mx+c

2x+2y=-4

2y= -2x -4

y= -x -2

slope: -1

intercept: -2

Yx=2 I think it’s the right answer.

PLS HELP MEEE !!!!!

Answers

Answer:

5 terms

Step-by-step explanation:

x is one term

-3 is one term

2y is one term

-16 is one term

4x is one term

5 terms in total

Answer:

There are 5 terms

Step-by-step explanation:

Each part is a term, whether or nor it has a coefficient

find the reflex angle 150 degrees ?​

Answers

A reflex angle is equal to the sum of 180 degreesand any of the primaryangles (acute, right andobtuse angles). Therefore, Reflex angle = 180° + Acute angle.

First, make sure that it is the reflex angle you’re being asked to measure! Lots of children mistakenly, but very carefully measure the wrong angle. Usually, the angle you’re being asked to measure will have a little circle drawn around the point to show you which side needs measuring

2. Make a small mark on your paper to show where 180° is. If you want to, you could even draw a faint line to show the 180° line.

3.You now need to measure the remainder. Using the outside scale on your protractor, measure the angle from the 180° line you have drawn to the second line you have been given (in this case y to x).

4. Add together 180° to the second measurement and this will be your reflex angle.

5. If you want to check your answer, measure the inside angle and check that the two measurements added together equal 360°.

I need help with this one too and question 6 A line passes through (−1,7) and (2,10). What is the equation of the line?

Question 2 options:

3x−y=−4

3x−y=−16

x−y=−12

x−y=−8

Answers

Answer:

A line passes through (-1, 7) and (2, 10). The equation of the line is -x + y = 8.

B
Use the Pythagorean Theorem to find the length of the
missing side of the right triangle. Then find the value of
each of the six trigonometric functions of 0.
c = 20
A
с
b = 16
The length of the missing side of the right triangle is a =

Answers

The length of the missing side of the right triangle is a=4

The third side of the triangle is 12 units and the measure of the angle θ is 37°.

What is a right-angle triangle?

It's a form of a triangle with one 90-degree angle that follows Pythagoras' theorem and can be solved using the trigonometry function.

The third side of the triangle 'a' is calculated by Pythagoras' theorem. Then we have

c² = a² + b²

20² = a² + 16²

400 = a² + 256

a² = 400 - 256

a² = 144

a = 12

Then the value of the angle θ is calculated as,

sin θ = 12 / 20

sin θ = 3 / 5

sin θ = sin 37°

θ = 37°

The third side of the triangle is 12 units and the measure of the angle θ is 37°.

More about the right-angle triangle link is given below.

https://brainly.com/question/3770177

#SPJ7

HI GUYS STOP WITH THE LINKS...
COULD SOMEONE PLEASE HELP ME THANKS SO MUCH!

Answers

Answer:

B.

Step-by-step explanation:

hello pls help me need ​

Answers

9514 1404 393

Answer:

  0.25 < x < 2

Step-by-step explanation:

The quadratic can be factored as ...

  4x^2 -9x +2 < 0

  (4x -1)(x -2) < 0

The factors are zero for x = 1/4 and x = 2. The product of the factors will be negative, satisfying the inequality, for values of x that make one factor positive and the other one negative. Those values of x are between x=1/4 and x=2.

The solution is 1/4 < x < 2.

The graph on the number line has open circles at x=1/4 and x=2, and is shaded between those values.

_____

Additional comment

The circles on the graph are open because those x-values are not part of the solution set.

The price for a pair of trainers was £45. The price reduced to £27. Work out the percentage change in price.

Answers

Answer:

look at the photo........................

Need help, step by step to solve this problem.

Answers

Answer:

I don't know this answer

Which graph represents the function r(x) = Ix-21 - 1

Answers

Answer:

the one you already have marked (a)

A is correct

Step-by-step explanation:

A is correct
u have already guessed i see

Joe is flying kites in the park. His kite flies so high, the 100-foot string runs out. A friend measures the distance on the ground as 25 feet. What other information do you need to know in order to solve this problem?

Answers

Answer:

[tex]100 \div 25[/tex]

is 4

Step-by-step explanation:

100

÷

25

is 4

To measure the height of the kite directly above the ground we will need to know the angle of elevation of the kite on the ground.

What is the angle of elevation?

The angle of elevation is an angle that is formed between the horizontal line and the line of sight. If the line of sight is upward from the horizontal line, then the angle formed is an angle of elevation.

Given here, the length of the string is 100 feet, and the distance of joe to the projection of the kite is 25 feet. Let the angle of elevation be θ then

cosθ=25/100

cosθ =1/4

θ      = cos⁻¹(1/4)

 θ      = 75.52°

Hence, the other we information required to know is the angle of elevation.

Learn more about the angle of elevation here:

https://brainly.com/question/21137209

#SPJ2

Whitiney is training for a cyle race
In the first week of training she cycles 75 miles averaging 18mph
In the second week of training she cycles 105 miles averaging 20mph
A) Work out the percentage increase in the distance she travels
B) Work out the percentage increase in Whitneys speed

Answers

Answer:

21.24%

Step-by-step explanation:

Speed=Distance/time

Rewriting equation time=distance/speed

75/18= 4.33

105/20=5.25

21.24% increase

please help I will make you Brainliest​

Answers

Answer: 85

Step-by-step explanation:

Solve for the slope (rate of change) of the given table.

Answers

Answer:

3

Step-by-step explanation:

The slope is found by using two points:

[tex]\frac{y_2-y_1}{x_2-x_1}[/tex]

We can just plug in the first two points:

[tex]\frac{19-13}{4-2}=\frac{6}{2} =3[/tex]

‘That’s the slope! :)

Please answer correctly.

Answers

Answer:

26 days were rainy.

Step-by-step explanation:

you said that 4 days were sunny out of the 30 days it rained. the answer is 26

26
4-30=26
—————-
—————

The tape diagram represents 100%l​

Answers

Answer:

40%

Step-by-step explanation:

Number of blocks shaded = 2

Total blocks = 5

Percentage: 2 ÷ 5 × 100

= 40 %

Answer:

40

Step-by-step explanation:

2 of 5 slots are shaded in, so that would be 2/5.

[tex]\frac{2}{5} = \frac{40}{100} = 40 \%[/tex]

What value of m makes the equation 5/2(4m-8)-2(6m-7)=-10

Answers

Answer:

Step-by-step explanation:

Lainey has solved the equation 4.2 + x = 16.5 . Her answer is x = 12.3 . Explain how Lainey can use the substitution property of equality to check her solution.

Answers

Answer:

She can do 4.2+12.3 to see if it equals 16.5.

Step-by-step explanation:

Substitute value of x into the equation

[tex]\\ \sf\longmapsto x+4.2=16.5[/tex]

[tex]\\ \sf\longmapsto 12.3+4.2=16.5[/tex]

[tex]\\ \sf\longmapsto 16.5=16.5[/tex]

Verified

Can anyone please help me solve for x, y, and z?

Answers

Answer:

z= 3

y = 105

x= 90

Step-by-step explanation:

y-12 = 90+z

y-18+z = 90

y = z + 102

z + 102 - 18 + z = 90

2z = 90 - 84

z = 3

What is the percent of decrease from 100 to 45?

Answers

Answer:

percentage decrease is always calculated like this

((orignal - new ) / original ) 100

So in this case

100-45= 55

55/100 is 11/20

11/20 * 100/1 is well simplified is 55

so 55%

The number of students in Ms locklear class is a prime number how many students could be in the class 18 or 19 or 21 or 27

Answers

Answer:

18

Step-by-step explanation:

Answer:

18 or 19 or 21 or 27

Step-by-step explanation:

What is the equation of this line in slope-intercept form?


· y = 3x + 2

· y = 3x - 2

· y = -3x + 2

· y = -1/3x + 2​

Answers

Answer:

y = 3x + 2 slope 3 y-intercept (0,2)

y = 3x - 2 slope 3 y-intercept (0,-2)

y = -3x + 2 slope -3 y-intercept (0,2)

y = -1/3x + 2​ slope -1/3 y-intercept (0,2)

Step-by-step explanation:

x²-7x +15=0 slove the quadratic equation​

Answers

Answer:

X = √ 7 x −15

 X = − √ 7 x − 15

Step-by-step explanation

Math- Way

In the past month, Brian rented 5 video games and 1 DVD. The rental price for each video game was $2.60. The rental price for the DVD was $4.30. What is the
total amount that Brian spent on video game and DVD rentals in the past month?
Pls help!

Answers

Answer:

$17.30

Step-by-step explanation:

So each video game is $2.60 and Brian rented 5 of them.

5 * 2.60 = 13

He spent $13 on just the video games. Now, he also rented 1 DVD, priced at $4.30.

13 + 4.30 = 17.30

Brian spent a total of $17.30 on rentals in the past month.

Stay safe <3

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