7th grade math help me pleaseee

7th Grade Math Help Me Pleaseee

Answers

Answer 1

Step-by-step explanation:

7.

[tex]7 + \frac{m}{8} = - 2 \\ \frac{m}{8} = - 2 - 7 \\ \frac{m}{8} = - 9 \\ m = - 9 \times 8 \\ = - 72[/tex]

8.

[tex] \frac{ - 1}{5} k + 1 = 11 \\ \frac{ - k}{5} + 1 = 11 \\ \frac{ - k}{5} = 11 - 1 \\ \frac{ - k}{5} = 10 \\ - k = 10 \times 5 \\ - k = 50 \\ k = - (50) \\ = - 50[/tex]

9.

[tex] - 6 + \frac{1}{3} w = 0 \\ \frac{1}{3} w = 0 + 6 \\ \frac{1}{3} w = 6 \\ w = 6 \div \frac{1}{3} \\ = 6 \times 3 \\ = 18[/tex]

Answer 2
U have to do what is in the parentheses first

Related Questions

Find the value of this expression if x = -9.
X-7
x +7

Answers

Answer:

8

Step-by-step explanation:

numerator = -9-7 = -16

denominator = -9+7 = -2

[tex]\frac{num}{deno} = \frac{-16}{-2} = 8[/tex]

If the rate of inflation is 4.1% per year, the future price p(t) (in dollars) of a certain item can be modeled by the following exponential function, where t is the number of years from today. p(t)=2500(1.041) Find the current price of the item and the price 8 years from today. Round your answers to the nearest dollar as necessary.​

Answers

Answer:

Given function:

p(t) = 2500(1.041)^t

Current price is:

p(0) = 2500(1.041)^0 = $2500

Price after 8 years:

p(8) = 2500(1.041)^8 = $3448 (rounded)

PLEASE HELP!! I beg of yall

All three questions have the same triangle which is used in the first photo attached!
I'm supposed to match the Trig function with the correct ratio.

Answers

Answer:oop

Step-by-step explanation:

help me plz !!!
what´s 6×6×6×6=

Answers

Answer:

hey child !! you should practice some maths okay.

6 × 6 × 6 × 6 = 1296

24

6 × 6 × 6 × 6 = 24

hope it helps

NEED ANSWER ASAP GIVING LOTS OF BRAINLIST!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

1. X2 +3x+5

2. 5x-1+

3. x2+ 3x-5

Answer:

this is your answer of first one..

A cylinder has a Height 50 and a diameter 25 what is it’s volume?

Answers

Answer:

Step-by-step explanation:

V≈24543.69

Answer:

1250

Step-by-step explanation:

50×25=1250 hope it helps

i’ll give brainliest

Answers

Answer:

-4/5y - 4/5x

Step-by-step explanation:

The fraction ( -4/5 ) will multiply each component in the bracket. That is the (y) and the (x)

So -4/5 × y gives you -4/5y

and -4/5 × x gives you -4/5x

Therefore you have -4/5y - 4/5x

Lines with the same slope are

Answers

Answer:

Parallel if they have the DIFFERENT y-intercept

If they don’t have the different y-intercpet, its just coincide

Please help ill give brainliest and more points
Kushbu decides to order a combination platter at her favorite restaurant. The platter comes with a choice of 2 entrees and 3 sides.

If there are 8 entrees and 6 sides available, how many different meal combinations could she order?

Enter your answer as an integer, like this: 42

Answers

Answer:

5

Step-by-step explanation:

Answer:

560

Step-by-step explanation:

To find the total combination you have to multiply the combination of entrees by the combination of sides. You have to use the nCr equation to find these separate equations. n is the number of items in the total of the set and r is the number of items you want to choose from the set.

nCr(8,2) = 28
nCr(6,3) = 20

28 * 20 = 560

who wanna help me with my school work

Answers

21x22=462 hope this helps

Answer:

364 [tex]mi^{2}[/tex]

Step-by-step explanation:

I'll give branslist if answer is correct! ​

Answers

Answer:

sinθ = [tex]\frac{2}{3}[/tex]

Step-by-step explanation:

Using the Pythagorean identity

sin²θ + cos²θ = 1 , then

sin²θ + ([tex]\frac{\sqrt{5} }{3}[/tex] )² = 1

sin²θ + [tex]\frac{5}{9}[/tex] = 1

sin²θ = 1 - [tex]\frac{5}{9}[/tex] = [tex]\frac{4}{9}[/tex] ( take the square root of both sides )

sinθ = [tex]\sqrt{\frac{4}{9} }[/tex] = [tex]\frac{2}{3}[/tex]


The diagram shows the front face of a barn,
The width of the barn is 12 m.
The height of the barn is 8m.
The sides of the barn are both of height 5m.
Work out the area of the front face of the barn.

Answers

Answer:

the front face of the barn: 78m^2

Step-by-step explanation:

look at the photo

The area of a 2D form is the amount of space within its perimeter. The area of the front face of the barn is 78 m².

What is an area?

The area of a 2D form is the amount of space within its perimeter. It is measured in square units such as cm², m², and so on. To find the area of a square formula or another quadrilateral, multiply its length by its width.

The diagram of the barn can be made as shown below. Therefore, the area of the front face of the barn is,

Area of the barn front = Area of the triangle + Area of the rectangle

                                     = (5 × 12) + (0.5 × 3 × 12)

                                     = 60 m² + 18 m²

                                     = 78 m²

Hence, the area of the front face of the barn is 78 m².

Learn more about the Area:

https://brainly.com/question/1631786

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Need help, Solve for X

Answers

x=54.5

the whole circle is 360 so 360-33=327
327/6=54.5.
take all of those and replace “x” with 54.5. you get 6*54.5+33 which equals 360

what value of x makes this equation true?

Answers

Answer:

x= -6

Step-by-step explanation:

-8=x-2

add 2 on both sides

-8+2=x

-6=x

x=-6

Answer:

_ 6= x

Step-by-step explanation:

this is because you have to ADD 2 to both sides

1. Melissa is making some punch. The
punch recipe calls for 4 cups of orange
juice for every 5 cups of lemonade.
How many cups of orange juice should
Melissa use for each cup of lemonade A 1/4 B 4/5 C 1 1/5 D 1 1/4 Answer quick plzzz

Answers

Answer:

11/5 i think sorry if wrong if not i think it will be

4/5

Step-by-step explanation:

hope this helps!

have a good day

408 words in 4 minutes how man words can he type per minute

Answers

Answer:

102 words/minute

Step-by-step explanation:

408/4 = 102

He can type 102 words per minute


[tex]2 {x }^{2} - 10x - 4 = 0 [/tex]

Answers

Answer:

see below

Step-by-step explanation:

I'm assuming you want to find the roots for this equation?

using the quadratic formula: [tex]x_{1,\:2}=\frac{-\left(-10\right)\pm \sqrt{\left(-10\right)^2-4\cdot \:2\left(-4\right)}}{2\cdot \:2}[/tex]

[tex]x=\frac{5+\sqrt{33}}{2}[/tex] & [tex]\:x=\frac{5-\sqrt{33}}{2}[/tex]

Answer:

[tex]x_1 = \frac{5 - \sqrt{33}}{2}\\x_2 = \frac{5 + \sqrt{33}}{2}[/tex]

That's assuming we were supposed to solve for x.

Step-by-step explanation:

[tex]ax^2 + bx + c = 0\vspace{3pt}\\\Delta = b^2 - 4ac\vspace{4pt}\\x = \frac{-b \pm \sqrt{\Delta}}{2a}\\\\2x^2 - 10x - 4 = 0\\x^2 - 5x - 2 = 0\\\Delta = (-5)^2 - 4\cdot 1\cdot (-2) = 25 + 8 = 33\\x_1 = \frac{5 - \sqrt{33}}{2}\\x_2 = \frac{5 + \sqrt{33}}{2}[/tex]

Find the standard deviation, σ, for the binomial distribution which has the stated values of n and p. Round your answer to the nearest hundredth.
n = 2165; p = 0.63

A. σ = 22.46
B. σ = 25.73
C. σ = 20.05
D. σ = 26.58

Answers

C is the answer to your question

X
Combine like terms:
b + 4b2 - 8 + 3b - 2b2

Answers

Answer:

[tex]2b^{2}[/tex] + 4b - 8

If Birr 2400 is invested at 6 simple interest per annum, then what is the amount after 4 years?

Answers

Answer:

R2976

Step-by-step explanation:

2400(1+0.06×4)

=R2976

log (z ^ 3)/(x ^ 4 * y ^ 5) with steps please

Answers

Answer:

Step-by-step explanation:

PLEASEE HELPPP! IT DUE TONIGHT!!!

Answers

Answer:

Step-by-step explanation:

Answer:

11 +5x=y

y-11-5x=0

Step-by-step explanation:

HELP PLEASE ASAP THANKS

Answers

Answer:

188.4

Step-by-step explanation:

GIVING BRAINLIEST!!!

Answers

Answer:

The second option: 1/4 x (26 - 10) x 3

Step-by-step explanation:

"The difference of 26 and 10" indicates that those two numbers are going to be subtracted, which is why you get (26 - 10).

The "of" in "1/4 of" means that the value after the "of" is getting multiplied by the 1/4: 1/4 x (26 - 10)

The "3 times" means that the 3 is getting multiplied by whatever comes after it, which is why the answer is the second option: 1/4 x (26 - 10) x 3

The answer is 1/4 x ( 26- 10) x3

An airplane traveled at a speed of 600 miles per hour for 90 minutes. How far did the airplane travel? PLEASE HELP

A. 54,000 miles
B. 12,000 miles
C. 900 miles
D. 600 miles
E. 450 miles ​

Answers

Answer:

C 900 miles

Step-by-step explanation:

Since its traveling 600 miles per hour that would be equal to 300 miles per 30 minutes (half hour) and 600+300=900 making it C.

900 if it traveled 600 per hour and 90 mins is 1 hour and 30 mins then we already know that he traveled more than 600 and now we already know that 30 is half of an hour so we also do that to 600 and get 300 so 600+300 is 900

Susan has a birdfeeder in the shape of a rectangular prism. It is filled with bird seed to a height of 58 feet as shown. How many cubic feet of bird seed does Susan need to fill the rest of the birdfeeder?

Answers

Answer:

Susan needs 1 23/64 cubic feet of bird seed to fill the rest of the birdfeeder.

Step-by-step explanation:

I did the math.

0.11718 cubic feet of bird seed Susan need to fill the rest of the birdfeeder.

What is Fraction?

The fractional bar is a horizontal bar that divides the numerator and denominator of every fraction into these two halves.

The number of parts into which the whole has been divided is shown by the denominator. It is positioned in the fraction's lower portion, below the fractional bar.How many sections of the fraction are displayed or chosen is shown in the numerator. It is positioned above the fractional bar in the upper portion of the fraction.

We have,

It is filled with bird seed to a height of 5/8 feet as shown.

So, Susan need to fill the rest of the birdfeeder

= 5/8 x 1/2 x 3/8

= 15 / 128

= 0.11718 feet

Learn more about Fraction here:

https://brainly.com/question/10354322

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Find A, B and ? Please show steps as well

Answers

35+55+a=180
90+x=180
-90. -90
A= 90

2 The data for average rainfall of two campgrounds in Arizona is listed below.

Campground A (4. 3. 5. 6.4.2

Campground B. 15 6.4 6.4.51

Part A
What is the mean mental rainfall amount for each campground? Please show your work.

Part B. What is the mean absolule deviasan (MAD) for Campground B? Please show your work and round to the nearest tenth if necessary

part C. what is the median for each Campground? please show your work

Answers

Answer:

j

Step-by-step explanation:

what is the probability of having a standard deck of 52 cards, while having a 3 card hand and getting dealt a jack and a king.​

Answers

Answer:

The deck of 52 playing cards is broadly classified into 2 which are further divided into 2 divisions.

Red(26 cards) and Black(26 cards).

The red cards are further divided into diamonds♦️ (13 cards) and hearts♥️ (13 cards).

The black cards are further divided into clubs♣️(13 cards) and spades♠️(13 cards).

In each division of 13 cards classified above, there are/is-

3 face cards- King, Queen, Jack

One ace card

9 number cards(numbered from 2–10)

So, there are twelve face cards in a deck.

When three cards are picked, you may pick any three face cards out of the 12 face cards.

P(getting 3 face cards)=

No. of favourable face cards/ Total cards I.e,

12C3/52C3. By solving it we get 22/22100

=0.00995

Step-by-step explanation:

i need help, i don’t understand

Answers

Answer:

a = 14

Step-by-step explanation:

The consecutive angles in a parallelogram are supplementary, sum to 180°

a² - 10a + 7a + 26 = 180

a² - 3a + 26 = 180 ( subtract 180 from both sides )

a² - 3a - 154 = 0 ← in standard form

(a - 14)(a + 11) = 0 ← in factored form

Equate each factor to zero and solve for a

a - 14 = 0 ⇒ a = 14

a + 11 = 0 ⇒ a = - 11

Since a > 0 , then a = 14

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