7/8th grade math please help!

7/8th Grade Math Please Help!

Answers

Answer 1

Answer:

H) 320 square units for the surface area

Step-by-step explanation:

20(5.2+5.25+4.5) + 2(1/2(4*5.25)) = 320


Related Questions

At the city museum, child admission is $5.30 and adult admission is $8.60. On Wednesday, 155 tickets were sold for a total of $1049.20. How many adult tickets were sold that day​

Answers

Answer:

122 adults

Step-by-step explanation:

1049.20(price of tickets sold)÷8.60(ticket price per adult)=122

Pls Help!!! Evaluate each expression for the given value of each variable.
...

Answers

You have to substitute each of the numbers given.

a.
2 + (3)^3
2 + 27
Answer: 29

b.
(1/2)^2
Answer: 1/4

c.
3(5)^2 + (3)
75+3
Answer: 78

d.
10(4) + (6)^2
40 + (6)^2
40 + 36
Answer: 76

10
Tara is playing a party game in which a tiny ball is
dropped into a rectangular box. To win the game, she
must guess where the ball will stop. What should she
guess to maximize her chances of winning?
scribes the likelihood of the ball
quare or rectangular shaped area?
square
circle
triangle
shaded area
4

Answers

Answer:

1. Shaded Area 2. Unlikely

Step-by-step explanation:

edge2021

I'll give brainliest ​

Answers

Answer:

its 2/3

my bad

Find the area of the polygon

Answers

Answer:

[tex] 687.5 \: {ft}^{2} [/tex]

Step-by-step explanation:

Area of polygon = Area of square + Area of triangle

[tex] = {25}^{2} + \frac{1}{2} \times 25 \times (30 - 25) \\ \\ = 625 +\frac{1}{2} \times 25 \times5 \\ \\ = 625 + \frac{1}{2} \times 125 \\ \\ = 625 + 62.5 \\ \\ = 687.5 \: {ft}^{2} [/tex]

Please answer this worksheet for me. It will help so much. I gave 30 points for this question. Don't make it wasted. Person with the correct answers will get brainiest. Everybody will get a thanks though.

Answers

Answer: im doing it on a different page but the answers are there

Step-by-step explanation: hopes this helps :)

which graph represents exponential decay?

Answers

Answer:

I THINk i did this but i will try to reamber

Step-by-step explanation:

Need help will give you the brainliest

Answers

Answer:

The answer is 3v + 5w

Step-by-step explanation:

simple add how many v's there are which are 3 so its 3v and count how many w's there are which is 5 so 5w all together is 3v+ 5w

hope this helps!

is (0,-4)a solution ?
Please help :/ marked brainly

Answers

Answer:

Not enough informations

Answer:

no its -4

Step-by-step explanation:

EVERYONE PLZ PLZ PLZ ANSWER THIS QUESTION

Answers

Answer:

the answer is definitely c

Answer:

C

Step-by-step explanation:

Hope this helps! Have a nice day :D

how many yards
carpeting is needed to cover a 60 feet length room and 40 feet width ​

Answers

Answer:

[tex]266[/tex] [tex]\frac{2}{3}[/tex] [tex]yards[/tex]

Step-by-step explanation:

1. Approach

First, convert the dimensions of the room from feet to yards. Remember, the conversion rate between feet and yards is, [tex]3feet=1yard[/tex]. Next, find the area of the room by multiplying the length by the width.

2. Convert the unit of measurement

The measurement unit is given in feet, one must convert it into yards. The conversion rate between yards and feet is, [tex]3feet=1yard[/tex].

[tex]60feet=20yards\\\\40feet=13\frac{1}{3}yards[/tex]

3. Find the area of the room

Now multiply the length by the width to find the area of the room.

[tex]20yards*13\frac{1}{3}yrads\\\\= 20 * \frac{40}{3}\\\\=\frac{800}{3}\\\\= 266\frac{2}{3}_{.}yards^{2}[/tex]

please answer will give brainliest

Answers

Answer:

50 im sorry if im wrong

Step-by-step explanation:

Answer:

225

Step-by-step explanation:

15 * 15 = 225

225 / 2 =

In a video game, a guppy that escapes a net turns into three goldfish. Each goldfish can turn into two betta fish. Each betta fish can turn into two angelfish. Complete the diagram and write the number of fish at each stage. Write and evaluate an expression for the number of angelfish that can be formed from one guppy

Answers

Answer: 1 guppy = 3 goldfish

1 goldfish = 2 betta fish.....so 3 goldfish = (3 * 2) = 6 betta fish

1 betta fish = 2 angel fish....so 6 beta fish = (6 * 2) = 12 angel fish

so the number of angelfish that can be formed by 1 guppy is 12 angelfish

1. I have a tablespoon, but I need a teaspoon. What do I do?

2. I have a 2 cup measuring cup and need 1 1/4 cup mil and 1/2 cup of vegetable oil. How far do I fill it up if I’m measuring together?


I only need help with these two, my brain went completely blank while solving these.

Answers

Answer:

Step-by-step explanation:

1 tablespoon = 3 teaspoons

You need to fill the tablespoon a third full. Not accurate, but that's what you have to do.

:::::

1¼ + ½ = 1¾

you need to fill the 2 cup measuring cup ⅞ full to get 1¾ cups.

1. Fill the tablespoon only 1/3 full
2. Fill it up 1 3/4 full

Can somebody plz help answer the rest of these questions correctly (only if u done this before) thx :3

WILL MARK BRAINLIEST WHOEVER ANSWERS FIRST :SD

Answers

Answer:

9. 16.34

10. 51.84

11. 20.11

12. 76.03

13. 64.09

just look up circumference of a circle and you should be able to put the radius in the first thing that pops up :)

What is the product of
(3y^-4) (2y^-4)

Answers

Answer:

Step-by-step explanation:

3(2)* y-4*y-4

6 y to the negative 8

if my answer helps please mark as brainliest.

Can someone help me with this math!

Answers

Answer:

45

Step-by-step explanation:

((100-25)/100)× 60 is the correct answer

A rectangular pool is 6 feet by 12 feet. A 4 foot walkway is placed around the entire pool. What is the area of just the walkway?

PLEASEE HELP

Answers

Ok so the answer is 88 feet^2.

Explanation: First we would find the area of the pool. 6 times 12 is 72.
Since 4 feet is added add that to 6 AND 12.
Now multiply 10 and 16. 10 * 16 = 160.
Subtract 72 from 160. 160-72= 88 ft^2
Hope this helps!!

look at this i think this boy likes me

Answers

Answer:

talk to him

Step-by-step explanation:

he def likes you lmazo

There were 35 apples in a basket. Martha found that 6 apples were rotten. Select two statements that are true.

Answers

Answer:

The ratio of the number of rotten apples to the total number of apples is 6:35

The ratio of the number of good apples to the number of rotten apples is 35:6

Step-by-step explanation:

If you look at the wording the orders are switched.

Rotten apples: Good apples

Good apples: Rotten apples

PLEASE PLEASE HELP. I’ve wasted so many points on this problem :(

Answers

Answer:

13 cm

Step-by-step explanation:

A^2+12^2=15^2

A^2+144=225

A^2=81

A=9

9x2=18

31-18=13 cm

Find the perimeter of a rectangle whose width is 3 cm and whose diagonal is 3 √5 cm long.

A^2+3^2=3√5^2

A^2+9=45

A^2=36

A=6

3+3+6+6=18 cm

A tea shop brewed 8 7/8 pitchers of chamomile tea, of which it sold 2 3/5 pitchers. How many pitchers remained unsold?

Answers

Answer:6 11/40

Step-by-step explanation: You can change your units to decimals or to fractions of equal value.  Decimals are easier for this so 8 7/8= 8.875 and 2 3/5 =2.6.  Then subtract: 8.875-2.6= 6.275   You can now convert back to a fraction by simplifying the .275 into 11 by dividing by 25 and 1000 into 40 by dividing by 25.  6+11/40= 6 11/40 tea left

Answer:

6 11/40

Step-by-step explanation:

First you have to convert the fractions into improper fractions, where 8 7/8 would turn into 71/8 and 2 3/5 would turn into 13/5. Then you have to find a common denominator which would be 40, so you get 355/40 and 104/40. Then to find the remaining amount, you have to subtract 104/40 from the 355/40, so 355/40 - 104/40, which equals 251/40. This turns into 6 11/40, which can't be simplified any further. Hope this helps :)

A rate of change must be positive

Answers

Answer:

A rate of change can be positive or negative.

Step-by-step explanation:

cube root(8+ 3 root 21)+ cube root (8-3 root 21)
plese give good answer with explanation or I will report

Answers

Answer:

[tex]\sqrt[3]{8+3\sqrt{21} } + \sqrt[3]{8-3\sqrt{21} }[/tex] = 1

Step-by-step explanation:

Given[tex]\sqrt[3]{8+3\sqrt{21} } + \sqrt[3]{8-3\sqrt{21} }[/tex]To find The value of the expressionSolution

Let's rewrite the given as:

[tex]\sqrt[3]{3\sqrt{21} + 8} - \sqrt[3]{3\sqrt{21} - 8}[/tex]

Let the value is m and the expressions under 3rd roots are a and b, then we have

a = 3√21 + 8, b = 3√21 - 8m = ∛a - ∛b

Cube the both sides:

m³ = (∛a - ∛b)³m³ = a - b - 3[tex]\sqrt[3]{a^2b}[/tex] + 3[tex]\sqrt[3]{ab^2}[/tex]

Simplify in bits:

a - b = 3√21 + 8 - 3√21 + 8 = 16ab = (3√21 + 8)(3√21 - 8) = 9*21 - 64 = 125∛ab = ∛125 = 5

So the expression becomes:

m³ = 16 - 3[tex]\sqrt[3]{125a} + \sqrt[3]{125b}[/tex]m³ = 16 - 15∛a + 15∛bm³ = 16 - 15(∛a - ∛b)m³ = 16 - 15m

Solve for m:

m³ + 15m - 16 = 0m³ - 1 + 15m - 15 = 0(m - 1)(m² + m + 1) + 15(m - 1) = 0(m - 1)(m² + m + 16) = 0m - 1 = 0, m² + m + 16 = 0m = 1 is the only real root, the quadratic equation has no real roots

The answer is 1

what is 4,390.44 + 8.399, and show work pls

Answers

Answer:

4,398.839

Step-by-step explanation:

4,390.440 + 8.399=x

.000+.009=.009

.04+.09=.13

.4+.3=.7

.009+.13+.7=0.839

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

4390+8=4398

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

4398+0.839=4398.839

Za 30 dag żurawiny zapłacono 9,75zł. Oceń prawdziwość każdego zdania.

Answers

Step-by-step explanation:

Odpowiedź:

9.75zł :3 = 3.25zł

3.25zł x 4 = 13zł - Prawda

3.25zł x 10 = 32.50zł - Prawda

Liczę na najlepsze.

-7x-2y = -13
x – 2y = 11

Answers

-7x -2y= -13
-x + 2y= -11
-8x=-24
x=3

(3) - 2y= 11
-2y= 8
y= -4

(3,-4)

I am stuck with the above question, please help

Answers

Answer:

D  

Step-by-step explanation:

Two lines are parallel if they have the same slope.

the given equation is in the form

y=mx+b

where

m=-5/2

b=-7

m is the slope.  You can see this by noting that if you increase x by 1 you increase y by m.

So, in this case, you are looking for a line with slope of -5/2.

You can solve each of the choice equations for y to see which one has the right slope.

A: y=(2/5)x-6   no good

B: y=-(2/5)x-1   no good

C: y=(5/2)x-4   no good

D: y=-(5/2)x-4  GOOD

Mr Hall walked of the way from his house to work.
He walked 6 miles.
How far is it in total from his house to work?
?
6 miles

Answers

Answer:

6 miles

Step-by-step explanation:

Find the missing side length of this right triangle​

Answers

You’re answer is going to be A
A !!!!!!!!!!!!!!!!!!
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