Mathematics Middle School

Find each percent change to the nearest percent.
State if it is an increase or a decrease
1. From 74 hours to 85 hours
2.From 24 grams to 96 grams

Answers

Answer 1

Answer:

1 is a increase

2 is decrease

Step-by-step explanation:

Answer 2

Answer:

1 increase 2 decrease

Step-by-step explanation:

hope this helps

Related Questions

Solve this equation y=bd-6, for b

Answers

To solve this equation, you would need to isolate b. To do this, first you would add six to both sides. Then, to get rid of the d, you would divide both sides by d since that is the opposite of multiplication. So, the answer would be

b = y-6
———
d

Answer:  [tex]b = \frac{y+6}{d}[/tex]

Step-by-step explanation:  To isolate b, begin by adding 6 to both sides

y=bd-6

y + 6 = bd - 6 +6   This "cancels" 6 on the right leaving

y + 6 = bd   Divide both sides by d

(y + 6)/d = bd/d   This cancels d on the right leaving

(y + 6)/d = b   To neaten this up rewrite (using the equations tool below)

[tex]b = \frac{y+6}{d}[/tex]

What is the slope of the line passing through the points.
( -1, 3 ) and ( 4, -7 )
On a coordinate plane.

Answers

Answer:

-6 is the slope

Step-by-step explanation:

In order to find the slope you need to do put it in slope intercept form

y2-y1/x2-x1 is slope-intercept  form

(-7 - (-1))/4-3 = (-7 +1)/1 = -6/1 = -6

Answer:

The slope in -2

Step-by-step explanation:

to graph this use the slope-intercept form of y=-2x+1

One number is 13 less than a certain larger number. Let x represent the larger number.

Suppose the results in part b,(2x-13) is 88. Write an equation expressing this fact.

I need helppp

Answers

X = 50.5
50.5 x 2 = 101.
101 - 13 = 88

There were 18 seeds planted in the garden. After one week there were 324 seedlings. After 2 weeks there were 648 seedlings. If the number of seedlings grows at the same rate each week, how many seedlings will there be after 5 weeks?

Answers

Answer:

The answer is 1620 seedlings.

Step-by-step explanation:

The rate is that every one week, there is an increase of 324 seedlings. If it continued for 5 weeks, the total amount of seedlings will be 1620 seedlings. The equations I used to solve this are 648-324=324. 324x5=1620.

324*5 is 1620, so the answer is 1620

How many carbon atoms are there in 3 molecules of CI4?

Answers

The answer for this is 4

A bird leaves its nest and travels 18 miles per hour downwind for x hours. On the return trip, the bird travels 3 miles per hour slower and has 5 miles left after x hours.

a. What is the distance of the entire trip?
? miles

b. How long does the entire trip take?
? hours
? minutes
? seconds

The answer for a is 60 miles and the answer for b is 3 hours, 40 minutes, and 0 seconds. Explain how this is correct. 30 point question, please answer soon.

Answers

60 miles would be your answer

Answer:

60 miles.,.

Step-by-step explanation:

How do you simplify 1497.384?

Answers

Answer:

1497.4

Step-by-step explanation:

It can be simplified in many ways
Thousands place: 1,000
Hundreds place: 1,500
Tens place: 1,500
Ones place: 1,497

Decimals places:

Tenths place: 1,497.4
Hundredths place: 1,497.48

Hope this helps :)

How do you solve this equation? WILL GIVE BRAINLIEST!

Answers

Answer:. x + 2y ≤ 8

It helps to put the standard form into slope-intercept form and Simplify

Step-by-step explanation:

Option C is the answer. Find equation of line and put into standard form. Check if line is dashed or solid and if shaded area is above or below line.

plz help me and plz show work

Answers

Answer:

I think it's 500

Step-by-step explanation:

Since each decagon is 10 Units of perimeter each 50 Decagons (50*10) is 500

Answer: Perimeter=500

Step-by-step explanation:

Perimeter of Figure 1 = 10

Perimeter of Figure 50 = 50x10 = 500

Which value of n makes the expression equal to a number greater than 8? (You will get 18 points)

Answers

Answer:

12/12

Step-by-step explanation:

12/12 simplified is 1

8 * 1 =8

Answer:

B. 4/3

Step-by-step explanation:

8 • 4/3 = 10 2/3

An art club sells 42 large candles and 56 small candles.
a. Write and simplify an expression that represents the profit.
expression for the profit: _(_-x)+_(_-y)
simplified expression for the profit: _______
b. A large candle costs $5, and a small candle costs $3. What is the club’s profit?
club's profit: $__

Answers

Answer:

Profit = $(700 - 42x - 56y)

Step-by-step explanation:

For large candles, the selling price is $10 and its making cost is $x.

So, by selling a large candle the profit is $(10 - x)

Again for small candles, the selling price is $5 and its making cost is $y.

So, by selling a small candle the profit is $(5 - y)

Therefore, in a sell of 42 large candles and 56 small candles the total profit will be, P = 42 (10 - x) + 56 (5 - y)

⇒ P = 420 - 42x + 280 - 56y {Applying distributive property}

⇒ P = $(700 - 42x - 56y) (Answer)

Step-by-step explanation:

hope it helps

heart me plz

you’re answer is $700

Explain how you could use the information that all circles are similar to show that the value of pi is a constant.

Answers

Answer:

That is, it does not vary given circles of differing size. This claim is equivalent to saying "all circles are proportional" or "all circles are similar."

Answer:

Step-by-step explanation:

you add

What is −2/0÷4/5? −2/5 −1/6 −1/16 −1/25


/ means a fraction line

Answers

it’s not possible if that’s kne of the options
Idk but ima go with the one above me

Please help I don't understand :(

Answers

A, E, and F are the answers

Answer:

A, E and F!

Hopefully this helps! :D

Percents from tape diagrams.

Answers

Answer:

Maybe 150%...?

Step-by-step explanation:

50% per strip.

150% total

each part is 50%

2/3 of 150 is 100

please helpppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppmee

Answers

Answer:

c i think

Step-by-step explanation:

Answer:

it is a. because it conveys the main idea on which the review is based

Step-by-step explanation:

I need help please..

Answers

Answer:

35+.8x= -7x-43, X=-10   , 3/4X-18=1/2X+5 X=92

Step-by-step explanation:

-5 5/8 ÷ 5

A) -1 1/8
B) -5/8
C) 5/8
D) 1 1/8

Answers

answer D

step by step:
=
−
45
8
5
=
−
45
8
5
=
−
9
8
=
−
1
1
8

Math due soon please help: 24 = 8u

u =

Answers

Answer:

3

Step-by-step explanation:

8 x 3 equals 24

8+8+8=24

Answer: 3


Equation: 24=8u —> 24/8=u —> 3=u

Explanation: you basically just move the 8 over to the left, which is placed as a denominator as 24/8. You simply that and boom, you get 3.

At a grocery​ store, you want to buy 1 (9 /10) lb of turkey. What decimal should the digital scale​ show?

Answers

Answer:

4.7 lbs i think my brutha

Step-by-step explanation:

help someones plz thanx

Answers

=20/27 and for decimals is 0.740741 hope that helped

plz help me and plz show work

Answers

Answer:

x= -19

Step-by-step explanation:

5x-10 = 7x +28

2x=-38

-38÷2

×= -19

x equals -19. hope this helps :))

HELP ASAP PLEASE!! What is the scale factor from triangle ABC to triangle A'B'C'?

Answers

Answer:

A to B is 3

B to C is 5

A to C is 3

Step-by-step explanation:

i think right

9514 1404 393

Answer:

  4/3

Step-by-step explanation:

The scale factor is ...

  A'B'/AB = 4/3

__

Other ratios confirm this:

  C'B'/CB = (5 1/3)/4 = 4/3 = C'A'/CA

A.10;37°

B.17;53°

C.10;53°

D.14;37°

Answers

A I’m pretty positive
I think it is D or A

Who is able to type a minimum of 95 words every 2 minutes?
Please Help!!

Answers

izzy because her word rate is 98, which is more than 95 (the minimum).
It is Izzy because for Remmy you cut 168 in half which is 84, so that isn’t enough. And for Justin, 1/3 of 135 is 45 and 45 + 45 = 90 so, that isn’t enough. So, it must be Izzy.

ANSWER QUICKLY WILL GIVE BRAINLIEST

Answers

Answer:

I think the answer is 20

Step-by-step explanation:

[tex]495 \div 5 = 99[/tex]

[tex]833 \div 7 = 119[/tex]

[tex]119 - 99 = 20[/tex]

The Platinum package cost 20 more dollars than the deluxe package

please help me i would rlly thank u for it

Answers

Hi hmariner can you please help me

Answer:

Assuming the coordinates of the original image were (-5, 2), (2, 2), and (4, -3), then by dilating by two, it would be (-10, 4), (4, 4), and (8, -6)

Step-by-step explanation:

When dilating by a factor of n, you multiple both the x and y-coordinates by n, so -5*2 is -10 2*2 is 4, making the coordinate (-10, 4)

What is matter? Use elements in
your answer.

Answers

Answer:

Matter is anything that takes up space. All matter (aka everything) is made up of atoms. The air that we breathe is matter because it is made up of mainly oxygen atoms, but also other atoms as well. The air also takes up what we would call free space. A wooden desk is matter because it takes up space and is made of oxygen, carbon, nitrogen, calcium, and several other elements and atoms.

matter is anything that takes up space for example water (hydrogen2oxygen) takes up space in our bodies and air(oxygen) takes up space in our lungs

The ratio of the perimeter of square RSTU to the perimeter of square WXYZ is 2 to 1. The area of square RSTU is 36 square inches. What is the area of square WXYZ?

Answers

Answer:

9 inches^2

Step-by-step explanation:

RSTU=square-root 36=6

perimeter of square RSTU=6x4=24

perimeter of WXYZ=12

12 divide by 4=3

3x3=9

(Attachment) I WILL MAKE YOU BRAINLIEST
A. 11.8%

B.1.18%

C.137.5

D.1.375

Answers

Answer:

D.) 1.375

Step-by-step explanation:

3/8 = .375

1 + .375 = 1.375

It’s D don’t ask me how I just know okay
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