Solve problem using substitution
a = 3b + 1
5b - 2a = 1

Answer:

She has 9 nickels, and 8 dimes.

Step-by-step explanation:

We know that she has a total of $1.25. We know that a nickel is $0.05, and that a dime is $0.10.

9x$0.05=$0.45

8x$0.10=$0.80

Answer:

9 nickels

8 dimes

Step-by-step explanation:

.05(n + 1) + .10n = 1.25

.05n + .05 + .10n = 1.25

.15n = 1.20

n = 1.2 / .15

n = 8

but there are 9 nickels because there is "one more nickel than dimes"

Answer:

I think its would be d

Step-by-step explanation:

the distributive property

Answer:

It D. yigigihihijojjvjhjbhhjhj

Answer:

1/2

Step-by-step explanation:

Since 2/2 is one whole that means if you add .5 + .5 you will get one whole and it is half of one whole

Step-by-step explanation:

Given,

d=5

a3=15

Now, a3=a+2d

= 15=a+10

= 15-10=a

= 5=a

a5=a+4d

= 5+20

= 25

Answer:

area of rectangle: 16cm

area of square: 9cm

area of whole: 16+9= 25cm

Step-by-step explanation:

Answer:

i dont kniw

Step-by-step explanation:

Answer:

x=2

Step-by-step explanation:

there is a scale factor of 2

Given:

The equation is

[tex]\dfrac{2a-4}{3}=8[/tex]

To find:

The reason for second step.

Solution:

We have,

[tex]\dfrac{2a-4}{3}=8[/tex]

Using multiplication property of equality, multiply both sides by 3.

[tex]3\left(\dfrac{2a-4}{3}\right)=3(8)[/tex]

[tex]2a-4=24[/tex]

Using addition property of equality, add 4 on both sides.

[tex]2a-4+4=24+4[/tex]

[tex]2a=28[/tex]

Using division property of equality, divide both sides by 2.

[tex]\dfrac{2a}{2}=\dfrac{28}{2}[/tex]

[tex]a=14[/tex]

So, the reason for second step is multiplication property (=).

Therefore, the correct option is D.

Step-by-step explanation:

step 1. U(-7, 2) -> U'(-2, -7)

step 2. V(-7, 7) -> V'(-7, -7)

step 3. W(-1, 6) -> W'(-6, -1)

Answer:

A, because m is less than 4.4 so 4.4, is gonna be greater

Answer:

13.7 cm I hope this helps you

13.7

Answer:

a) 23.0769% increase

b) 9.375% decrease

Step-by-step explanation:

Answer:

544

Step-by-step explanation:

128+96+96+128+96=544

Answer:

44/100

Step-by-step explanation:

To convert the denominator to 100, we multiply the fraction by 4/4:

11/25(4/4) = 44/100

Answer:

The answer is 44/100

Step-by-step explanation:

Multiply 25x4=100 so we know to multiply the numerator by 4 getting the answer 44

If this helped you please consider marking it as brainliest

Answer:

270

Step-by-step explanation:

ahhm 1 hour is equal to 60 minutes and their are 4 hours,,I did 60 × 4 = 240,,then half hour equal to 30 minutes..so 240+30=270

I hope it will help

Final lesson take 270 minutes in a day.

A measurement unit is a standard quality used to express a physical quantity. Also it refers to the comparison between the unknown quantity with the known quantity.

We have to given that;

At a school there are six lessons in a day.

And, In total, the six lessons last for 4 1/2hours.

Now, We know that;

⇒ 1 hours = 60 minutes

Hence, We can change as;

⇒ 4 1/2 hours = 4 1/2 × 60 minutes

                      = 9/2 × 60

                      = 270 minutes

Hence, There are 270 minutes long is the final lesson.

Learn more about the measurement unit visit:

https://brainly.com/question/777464

#SPJ2

Answer:

m = 16

Step-by-step explanation:

304 = 19 m      ( / 19)

16 = m

Answer:

A. Counterexample

Step-by-step explanation:

ounterexample can be a drawing, a statement, or a number.

Answer:

she earns $25.00 commission

Step-by-step explanation:

.05×500=25

Answer:

Look below

Step-by-step explanation:

The answer would be (0,2) or (2,2)

Please mark me as brainliest

Answer:

1,3

Step-by-step explanation:

Answer:

if x was 4 then the answer would be 36.

Step-by-step explanation:

28+8(4−3)

=28+(8)(1)

=28+8

=36

Answer:

Step-by-step explanation:

F(x)=5

Answer:f(x) = x^5

Step-by-step explanation:

Answer:

35/7

13/4

Step-by-step explanation:

I hope to help you

Answer:

five and four sevenths

5 4/7

Step-by-step explanation:

make them both improper fractions, multiply straight accross, then simplify.

12/7  *  13/4

=  156/28

=  39/7

=  5 and 4/7    in mixed number form

Answer:

1)50% , 2) 25% 3) 350%

Step-by-step explanation:

pls follow me not because I am genius but because I am a swager SWAG

Answer:

1. 50%

2. 25%

3. 350%

4. 125%

5. 30%

6. 45%

7. 59%

8. 380%

Step-by-step explanation:

to find the precentage of a fraction u have to try and make the bottom number 100, 1000, 10000 etc

to do that like the first 1 u do 2 x ? = 100 the answer is 50

Rule what u do to the bottom u have to do to the top

now that u multiply 50 down to make 100 u have to do as the rule say what u need to do is also multiply 1 to 50 to get the answer

as u might know that 100 mean % so u pet the top number and then %

Answer:

A, or Triangle DEC

Step-by-step explanation:

Answer:

What is the question asking for??

Step-by-step explanation:

area of the square=7*10=70cm2

area of the semi circle=πr^2/2

=22/7*5*5/2

. =39.25cm2

total area=39.25+70=109.25cm2

Answer:

(3,6)

Step-by-step explanation:

Collect like terms

y -5x = -9

y + 2x = 12

Using elimination method

Subtract equation 2 from equation 1

y - 5x = -9

y + 2x = 12

---------------

0. -7x = -21

Divide both sides by -7

-7x = -21

---- -----

-7 -7

x = 3

Substitute x=3 into equation 1

y = 5(3) - 9

y = 15 - 9

y = 6

Solution is (x,y) = (3,6)

Answer:

520

Step-by-step explanation:

happy to help ya :)

Answer:

2+1+3+2+1+3

Step-by-step explanation:

:)

Answer:

20 + -9 + 8 + -7

Step-by-step explanation:

A epression DOES NOT have a equal sign,  =

20-9+8-7 = 12

20 + -9 + 8 + -7

to check -->

20 +-9 + 8 + -7

20 + -9 = 20 - 9 = 11

11 + 8 = 19

19 + -7 = 19 - 7 = 12

So therefor it would be

20 + -9 + 8 + -7

Answer:

18h + 16

Step-by-step explanation:

Since H is an variable, we don’t know what it represents

Answer:

[tex]\huge\boxed{18h+16}[/tex]

Step-by-step explanation:

[tex]\text{Combine Like Terms.}\\\\\\10h+12+8h+4\\\\10h+8h+12+4\\\\18h+16\\\\\\\text{The expression can be no longer simplified.}\\\\\\\boxed{\text{The correct answer should be: } 18h+16}\\\\\\\text{ Hope this helps.}[/tex]

Answer:

You're just subtracting the (x,y) for the blue to the (x,y) for the red.

Step-by-step explanation: