Mathematics Middle School

Convert these phrases to numerical expressions and solve.
Fifteen minus three to the power of two

Answers

Answer 1

Answer:

did you post two times

Step-by-step explanation:

Answer 2
the expression should be (15-3)^2 and the answer is 144

Related Questions

I forgot the model the first time but here pls help

Answers

Answer:

1 x 12

3 x 4

2 x 6

Step-by-step explanation:

multiply them and you get 12 voila

Answer:

1 x 12

3 x 4

2 x 6

Step-by-step explanation:

A family drives to the beach. A. On the first day, the family drives 3/5 of the total distance. B. On the second day, the family drives 8/20 of the total distance. What fraction of the total distance does the family drive on these two days
19/20
18/20
15/20
20/20=1 help please

Answers

20/20
3/5 x 4 = 12/20
12/20 + 8/20= 20/20

Answer:

20/20: D

Step-by-step explanation:

First turn both the fractions into twentieths.

3/5 = 12/20

8/20

Then add 12/20+8/20=20/20

20/20 = 1

Plases help help help help

Answers

im also guessing that it’s ten but im making and educated guess

If a hen and a half lay an egg and a half in a day and a half, how many eggs will half a dozen hens lay in half a dozen days?

Good Luck!! First correct answer MIGHT get brainliest!!

Answers

Answer:

72 eggs

Step-by-step explanation:

Let’s simplify the answer: if one and a half hens lay an egg in 18 hours, how many eggs will 6 hens lay in 6 days? So 18/3=6, and 6x2=12. One hen can lay an egg in 12 hours. Which means a hen can lay 2 eggs in one day. 2x6=12. So 6 hens can lay 12 eggs in one day. 12x6=72. In 6 days, 6 hens can lay 72 eggs

Oh I answered first btw if you’re wondering later

Answer:

4 eggs

Step-by-step explanation:

One and half hen=1 egg in two days

=3 hens(one and half +one and half)=two eggs in four days

6 hens(half a dozen is equal to 12 divided by 2=6)=? Eggs in six days

=the 6 hens divided by 3 hens =2

The two eggs gotten from the 3 hens + the other 2=4 eggs in six days

A scale model of building has a height of 18 inches and length of 14 inches. The height of the real building is 360 feet.

What is the length of the real building?

(Answer) ft.

Answers

Answer:

280ft

Step-by-step explanation:

360/18=20

20x14=280

I think the answer will be 280

How can you determine the sale price if you are given the regular price and the percent of markdown

Answers

Answer:

Step-by-step explanation:

Take original price divide by one hundred multiply that by percentage, subtract what you get from original price and that’s your sale price

Answer:

let's say the price is 400 dollars

and the percent of markdown is 20%

100-20=80

400x80=32000

32000/100= 320

The price will be 320 dollars.

Last month you spent $30 on clothing. This month you spent 150% of what you spent last month. How much did you spend this month?
You do not need to show your work while answering the question

Answers

Answer:

Last moth I spent $45 on clothing.

Step-by-step explanation:

To solve this problem, we just need to find 150% of $30.

30 x 1.50 = 45

Therefore, last moth I spent $45 on clothing.

Hope this helps! :D

Answer:

$45

Step-by-step explanation:

30/2=15

30+15=45

What is the equation of the line that has a slope of m = 2 and passes through the point (-5, -6)?

Answers

Answer:

[tex]y=2x+4[/tex]

Step-by-step explanation:

You can solve this two ways: insert the values into point-slope form and simplify to solve for y, converting it to slope-intercept form, or insert the values into slope-intercept form, solve for b, and insert b. We'll do both :)

Point-slope form:

[tex]y-y_{1}=m(x-x_{1})[/tex]

Where:

[tex]m[/tex] is the slope[tex]x_{1}[/tex] and [tex]y_{1}[/tex] are corresponding coordinate points [tex](x,y)[/tex]

Insert the given values:

[tex]m=2\\\\(-5_{x_{1}},-6_{y_{1}})\\\\y-(-6)=2(x-(-5))\\\\y+6=2(x+5)[/tex]

Solve for y. Expand the right sie using the distributive property:

[tex]y+6=2(x)+2(5)\\\\y+6=2x+10[/tex]

Isolate the variable. Subtract 6 from both sides, canceling out the 6 on the left:

[tex]y+6-6=2x+10-6\\\\y=2x+4[/tex]

OR

Slope-intercept form:

[tex]y=mx+b[/tex]

Where:

[tex]m[/tex] is the slope[tex]b[/tex] is the y-intercept[tex]x[/tex] and [tex]y[/tex] are corresponding coordinate points [tex](x,y)[/tex]

Insert the given values:

[tex]m=2\\\\(-5_{x},-6_{y})\\\\-6=2(-5)+b[/tex]

Simplify the multiplication:

[tex]-6=-10+b[/tex]

Solve for b. Add 10 to both sides, canceling out the 10 on the right:

[tex]-6+10=-10+10+b\\\\4=b[/tex]

The value of b is 4. Insert the appropriate information into the equation. When using slope-intercept form, you don't plug in the coordinate points:

[tex]y=2x+4[/tex]

:Done

Need help can’t get a bad gradeeeee

Answers

1. 12/24=6/12=2/4=1/2 so their dog sleeps 1 hour for every 2 hours
1 for ever 2 hours 1/2

Which inequality is true?

Answers

It is A the answers is a

Answer:

i think A

Step-by-step explanation:

Pls help me! I’ve posted this 2 times and no help

Answers

Answer:

6x+5+3x+13=180°

9x+18=180

9x=180-18

9x=162

x=162/9

{x=18°}

Step-by-step explanation:

first corresponding angle and then add both using Linear pair

HELP ME PLZ
Wrapping choice #1 =2.25ft wide x 1.6 ft long= area and perimeter

Wrapping choice #2 =1.7ft wide x 5.1ft long= area and perimeter

Wrapping choice #3 =3.3ft wide x 4.4ft long= area and perimeter

Wrapping choice #4 =2.5ft wide x 5.6ft long= area and perimeter

Wrapping choice #5 =6.9ft wide x 8.7ft long= area and perimeter

Wrapping choice #6 = 5.6ft wide x 8.8ft long=area and perimeter

Answers

Answer:

#2

Step-by-step explanation:

Arnold is planning on painting a mural. Before painting the mural, Arnold painted the picture on a paper that is 5 inches wide and 11 inches tall. Arnold is using a scale in which 12 inch represents 1 foot to paint the mural.

How wide and tall will the actual mural be?

Answers

0.42ft
0.92 ft
Hope it helps

Answer:

10f t wide

22 ft tall

Step-by-step explanation:

did test

pls help me:) I rlly need it!

Answers

Answer:

6 x 10^5

Step-by-step explanation:

800000 - 200000 = 600000

hope this helps!

Answer
600,000

explanation
8•10^5 is 800,000 and
2•10^5 is 200,000
so subtract and you get 600,000

hope this helps and have a wonderful day :)

HELP ME PLZ QUICKLY
If your tree is 12ft tall and your uncle's is 6ft tall and he used 650 lights how many would you use

Answers

ummmmmm. yes ❤️.........

Answer:

1300

Step-by-step explanation:

if your uncle has used 650 lights but ur twice the hieght then youve used double so 1300 is your answer

What’s the answer
PLS HURRY

Answers

the correct answer is the middle option
middle option is the answer

20 POINTSSSSSSSSSSSSSSS Veronica is 4 1/2 inches taller than Aracely. Aracely is 56 3/4 inches tall. how tall is veronica A. 61 1/4 B. 60 1/4 C. 61 1/2 D 61

Answers

Answer:

A. 61 1/4

Step-by-step explanation:

56.75+4+50=61.25 = 61 1/4

Your answer is going to be A. Because when u add 4 and a half inches to aracelys hieght you get 60 1/4

Every hour, a machine makes the same number of tennis racquets. If on the 3rd hour of running, the machine has made 240 racquets, and on the 5th hour of running it has made 400 racquets, what is machines production rate?
A
80 racquets per hour
B
100 racquets per hour
C
120 racquets per hour
D
140 racquets per hour

Answers

Answer:

80 racquets per hour.

Step-by-step explanation:

Divide 240 by 3, and you'll get 80.  To double check, divide 400 by 5 and you'll still get 80.  Hope that helps.

D: 140 racquets per hour
Hope this helps;)

What type of slope does the graph of the line y = 3 have?

Answers

The slope is equal to 0.

Please answer this and tell me how you got it!!

Answers

Answer:

Step-by-step explanation:

multiply 2nd equation by 3 to get 6m+18n=0 then just use the elimination method

:) please comment for more explaning

The answer is Red so (-2,3)
N=-2
M=3

5/8 brainliest im giving if u get it right :D

Answers

Well basically if they lost 8 points and gained 6, they have -2 points.

Answer:

-8+6= -2

Step-by-step explanation:

camels can travel 25 miles per hour.." How long does this route take by camel?

Answers

Answer: 3.6 hours or 3 hrs and 36 mins

Step-by-step explanation:

It’s going 90 miles at 25 mph so 90/25=3.6

1) help ASAP due in 20 min!!!

Answers

Answer:

y=25x-5

Step-by-step explanation:

y=mx+b

the 25=m and the constant would be 5. However its a negative five because your losing -5 every hour.

Make me brainliest pls

Answer:

y=25x-5

Step-by-step explanation:

Jada planned a 30-mile bike ride. So far, she has traveled 18 miles. What percent of her total trip has she traveled?

Answers

Answer:

60%

Step-by-step explanation:

60%.

30 miles is what Jada planned to ride, and she already traveled 18 miles.
Do 18/30 and you should get 0.6, or 60%
So she traveled 60 percent of her total trip
Hope this helped :)

HELP DUE TOMORROW

Doing this question again as my teacher needs more descriptive answers!

Please put an explanation for all parts and answers to all a, b, c and d.

Thanks!
Questions in pictures

Answers

Step-by-step explanation:

I really can't see the picture

Answer:

dropdown numbers are where none of the digits are the same. the one of the digits is equal to the average of all the digits. 1025 is the smallest 4 digit drop down number

help please!!! ty ;D

Answers

Answer:

Jane is 52 7/40 inches tall

Step-by-step explanation:

What you do is you subtract 1 3/8 from 54 3/4 which gives you Carl's height, which is 53 3/8.

Lastly, you subtract 1 1/5 from 53 3/8 which is 52 7/40.

Answer: 52 7/40

Step-by-step explanation:

Plss help It’s almost the due dateee

Answers

16% of 50 peaches is 8 peaches.

Convert the following number to scientific notation.
123,456

Answers

1.23456 × 105. is the following number in scientific notation
1.23456 x 10^5 there you go :)

solve for c: 16c - 7 = 13.32

Answers

16c - 7 = 13.32

16c = 13.32 + 7

16c = 20.32

c = 20.32/16

c = 1.27

GIVING BRAIN PLZ DO ASAP
Chris types at an average speed of 45 words per minute. He has already typed 1,500 words of his final paper. The paper has to be more than 3,750 words. Which of the following inequalities could be used to solve for x, the number of minutes it will take Chris to finish his paper?
ANSWER CHOICES IN COMMENTS

Answers

Answer:

40x + 1500>3500 is the correct answer.

Step-by-step explanation:

Answer:

C.

45x + 1,500 > 3,750

step-by-step explanation:

hope this help

i need points

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