Mathematics High School

Which expression is equivalent to 7 − 9 ?

Answers

Answer 1

Answer:

Try subtracting 9 from 7 to find the value.

Step-by-step explanation:

Related Questions

Given that D, E, and F are the midpoints of their respective sides, which of the following is a true statement?

Answers

Answer:

I'm pretty sure its the 1st one.

Step-by-step explanation:

Work out the percentage change to 2 decimal places when a price of £60 is increased to £89.99.

Answers

Answer:

49.98%

Step-by-step explanation:

Original price: £60

New price: £89.99

The difference in prices: £89.99 - £60 = £29.99

£60 - 100% (the original price)

£29.99 - x  (the % that we want to calculate)

29.99 × 100 = 2999

2999 ÷ 60 = 49,9833333

Solve and show your work for each question...

Answers

[tex]0.\overline{36} = \dfrac{36-0}{99} = \dfrac{36}{99} = \dfrac{4}{11}\\\\\\0.3\overline{6}= \dfrac{36-3}{90} = \dfrac{33}{90} = \dfrac{11}{30}\\\\\\0.36 = \dfrac{36}{100} = \dfrac{9}{25}[/tex]

Plz help brainiest to the correct answer!

Answers

Answer:

1. x (multiplication)

2. / (division)

3. - (subtraction)

4. - (subtraction)

5. / (division)

Step-by-step explanation:

1. 24 x 3/4= 18

2. 24/-3/4=-32

3. 12- 15= -3

4. 12- (-15)= 12 + 15 = 27

5. -18 / -3/4= 24

#a

[tex]\\ \sf{:}\dashrightarrow 24\times \dfrac{3}{4}=18[/tex]

#b

[tex]\\ \sf{:}\dashrightarrow 24\div \dfrac{-3}{4}=-32[/tex]

#c

[tex]\\ \sf{:}\dashrightarrow 12-15=-3[/tex]

#d

[tex]\\ \sf{:}\dashrightarrow 12-(-15)=27[/tex]

#e

[tex]\\ \sf{:}\dashrightarrow -18\div \dfrac{-3}{4}=24[/tex]

A rectangle has an area of 35x + 42 square units. If the
width of the rectangle is 7 units, what is the length of the
rectangle?

Answers

Answer:

length = 5x + 6

Step-by-step explanation:

35x + 42 = 7*L    since area of a rectangle is length * width

(35x + 42) divide by 7  =  7L divide by 7

5x +6 = y

6 A clothing store paid $30 for a jacket, and sold the jacket for $48.
What was the percent increase?

Answers

Answer:

60%

Step-by-step explanation:

% increase = Increase ÷ Original Number × 100

             

Answer:

60%

Step-by-step explanation:

Total increase in cost = $(48 - 30) = $18

Now,

% increase = Increase/Original amount × 100

=> 18/30 × 100

=> 18/3 × 10

=> 6 × 10

=> 60%

solve 4x-y=-5 -2x+3y=10​

Answers

Answer:

(x,y) =(7/2,4)

(x,y) = (9/2,8) thats the answer

ax + b = c solve for x

Answers

Rearrange for x.

c-b=ax

x=(c-b)/a

loria has some dimes and quarters. If she has 18 coins worth a total of $2.25, how many of each type of coin does she have?

Answers

Answer:

dimes: 5

quarters:8

Step-by-step explanation:

she has 2$ in quarters and $0.25 in dimes

Answer:

10 Dimes and 5 Quarter

Step-by-step explanation:

Important info:

18 Coins worth a total of $2.25

Note:

Dimes = .10

Quarter = .25

10 Dimes = 1.00

4 Quarter = 1.00

Question to Answer:

How many each type of Coin does she have?

Solution:

Lets get rid of .25 in $2.25 :)

So that 1 Quarter..

2.00

Takes away 1.00 = 10 Dimes

Now we have 1 Quarter and 10 Dimes.

1.00 Left..

4 Quarter = 1.00

So now we have 5 Quarter and 10 Dimes..

Check Work:

5 Quarter = 1.25 and 10 Dimes = 1.00

1.25+1.00=

$2.25

Hence. Loria has 5 Quarter and 10 Dimes.

{ Couldn't figure out 18 Coins worth a total of $2.25 the closest I could get was 15 Coins worth a total of $2.25}

~[ RevyBreeze]~

In A Fraction What Is The Number On Top Called

Answers

the fraction on top is classed the numerator

Answer: numerator

Step-by-step explanation the bottom is the denominator

Hopes this helps✊

At a restaurant the ratio of kids meals sold to adult meals sold was 2:1. If there were 8
kids meals sold, what is the combined amount of kids and adult meals sold?

Answers

Answer: 12

Step-by-step explanation:

8/2=4

4x1=4

8+4=12

Answer:

12

Step-by-step explanation:

following the 2:1 ratio, or 2 kids meals for every adult meals sold, so if 8 kids meals are sold, 4 adult meals must have been sold.

8/2 = 4

Need help ASAP! Directions in picture;)

Answers

X=3

Y=5

If both polygons are equal to each other, then you can get these equations:

2x+4=10

3y-3=12

Now you just solve them. Remember, what you do to one side, you have to do to the other. I can explain this more if you want.

In the figure shown, line AB is parallel to line CD.

Part A: What is the measure of angle x? Show your work. (5 points)

Part B: Explain how you found the measure of angle x by identifying the angle relationships that you used along the transversal. (5 points)

Answers

Answer:

Below.

Step-by-step explanation:

Part A.

m < RPB = 180 - 115 = 65 degrees.

So the m < x =  180 - 65 - 62

= 53 degrees.

Part B.

First line of Part A:

M < RPB + m < PRD = 180 degrees ( Internal angle between 2 parallel lines are equal).

Second line:

The 3 angles x, 62 and 65 degrees  are all on the same straight line (AB), so they sum to 180 degrees.

[tex]15yx^{2} -34y-16[/tex]

Answers

Answer:

15yx^2-34y-16

Step-by-step explanation:

Help help help help

Answers

Answer:

  C = 18

Step-by-step explanation:

Put the numbers in place of their symbols and do the arithmetic. The diagram is showing you r = 3.

  C = 2πr

  C = 2(3)(3) . . . . . using 3 for π, as directed

  C = 18

[tex]\huge\bf\underline{\underline{\pink{A}\orange{N}\blue{S}\green{W}\red{E}\purple{R:-}}}[/tex]

Here we've been provided with the information given that radius (r) = 3.

And we have to find the circumference (c) of circle. And we have been provided with the formula i.e C = 2πr.

Placing (π = 3) in the above equation,

[tex]:\implies\tt{c = 2\pi r}[/tex]

[tex]:\implies\tt{c = 2 \times 3 \times 3}[/tex]

[tex]:\implies\tt{c = 6 \times 3}[/tex]

[tex]:\implies\tt{c = 18}[/tex]

The circumference of circle is 18cm.

PLEASE HELP! A farm stand sells oranges in 3-lb bags for $3.75. What equation represents the cost, c, for p pounds of oranges?

A. c = 1.25p B. p = 1.25c

C. c = 3.75p D. p = 3.75c

Please answer asap

Answers

Answer:

The answer is A

Step-by-step explanation:

$1.25*3=3.75

simplify 7^2 • 7^6 =

Answers

Answer: 7^8

Explanation: just add the exponent if you are multiplying two things with the same base

Determine if the relation below is a function.

(-5,1) ; (3,1) ; (5,1) ; (2,1)

Group of answer choices

Yes, this relation is a function.

No. this relation is not a function.

Answers

yes this is a function

how many solutions does the following system of equations have: 3x−2y=−7 4y=9−6x

Answers

this equation is error because of -7and 4y two this is not have + or - that's why

F(x)=log2(x+3)+5 what's the x and y int.

Answers

Answer:

x int (-3), y it. (5)

Step-by-step explanation:

x+3=0, just subtract 3 and x = 3

Number to the right of parenthesis is always y int. for this sort of problem

5x+2y=6 3y=2x+9 how many solutions does this problem have? No solution, one solution, or infinite solutions

Answers

Answer:

One solution

Step-by-step explanation:

First, organize the equations by moving y to the left hand side:

5x + 2y = 6, subtract 5x from both sides and we get: 2y=6-5x

3y = 2x + 9 is already done

Next, set the coeficcient of both y values equal to the least common multiple of 2 and 3 which is 6:

2y=6-5x multiply both sides by 3, 6y = 18-15x

3y=2x+9 multiply both sides by 2, 6y = 4x+18

Substitute y on both sides and we get 18-15x=4x+18

Simplify that and you get 19x=0, x equals 0, so there is one solution

What is the slope of the line on the graph?



Enter your answer in the box.

Answers

Answer:

-1/3x+4

Hope This Helps!!!

2x/5=9/15 what does x equal

Answers

Answer:

2x/5=9/15

2x=9/3

x=1.5

You are running a fuel economy study. One of the cars you find is blue. It can travel 44 1/2miles on 1 and 1/4 gallons of gasoline. Another car is red. It can travel 27 1/5 miles on 4/5 gallon of gasoline. What is the unit rate for miles per gallon for each car? Which car could travel the greater distance on 1 gallon of gasoline?

Answers

Answer:

Blue car

Step-by-step explanation:

Find the miles per gallon rate of each car

Blue car:

44 1/2 ÷ 1 1/4 = 89/2 ÷ 5/4 = 89/2 × 4/5 = 356 / 10 = 35.6 miles per gallon

Red car:

27 1/5 ÷ 4/5 = 136/5 × 5/4 = 136/4 = 34 miles per gallon

According the rates, the blue car could travel the greater distance

easy one for you folks. show work.
who ate more?​

Answers

Answer:

Regan ate more

Step-by-step explanation:

maggie: 5/8 of pizza to start

eats  1/4 of 5/8

1/4 times 5/8 gives 5/32

regan: 7/12 of pizza to start

eats 2/3 of 7/12

2/3 times 7/12 gives 14/36 or 7/18

7/18 > 5/32

Answer: Reagan

Step-by-step explanation: because 2/3 is more than 1/4

PLEASE HELP! WILL MARK BRAINLIEST!!!

Answers

AnswerAnswers in explaination

Step-by-step explanation

PART A ANSWER: equation 1) y=1155x+982 and 2) y+100x+1000 both have x model the number of years and y model the investment they made.

PART B answer: The two equations I solved for above

Part C: if she goes with the first plan and invest for 20 years she'll get 24082 dollars and if she invest in the second one she'll get 3000 dollars. As you can see there is a huge difference between the two

question (e) only please show working as well appreciate it

Answers

Answer:

a. f(2) = 6

b. f(3) + f(-3) = 62

d. 3(x+1)^2 - 5(x+1) + 4

e. This one looks like the secant line equation. Not fully sure.

Step-by-step explanation:

You replace whatever is inside of the parenthesis with the x in the function. For the first two, you just have to calcluate the numbers.

For the other two , you have use algebra. For d, you replace x with x+1.

Can u help me with these plss

Answers

Answer: 40BC and 766AD

Step-by-step explanation:

Sarah wants to find out how much time it would take to drive from her home to New York. At an average, she would drive at 55 miles per hour. If the distance to be covered is 1150 km and a mile equals 1. 61 km, how much time will the trip take (to the nearest hour)? 13 hours 21 hours 29 hours 34 hours.

Answers

Answer:

A

Step-by-step explanation:

d = 1150 km = 1150 km / 1.61 miles = 714.29 miles

r = 55 mph

d / r = time

714.29 / 55 = 12.99 hours.

The closest time to that is 13 hours.

No files or links please!
graph y= -4/3 x+2 using the slope and y-intercept

Answers

Answer:

heres a graph

Step-by-step explanation:

Answer: there you go

Step-by-step explanation:

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