Help with math 10 points

Help With Math 10 Points

Answers

Answer 1
1. Substitute y=5x−7 into −3x−2y=−12.
2. Simplify 5x−y−3x−2y to 2x−3y.
3. Add 2y to both sides.
4. Simplify −3x−10x+14 to −13x+14.

(I answered it from top to bottom, so it would go top 1 2 to botttom 3 4)
Answer 2
I honestly don’t know

Related Questions

BRAINLIEST IF CORRECT

Answers

Step-by-step explanation:

They have equal ratio of yellow

Answer:

spinner b

Step-by-step explanation:

Natalia lives in a house that is 2 meters below sea level. Natalia goes to school every day, which is 13 meters above sea level. How many meters does Natalia travel, in altitude, when going from home to school?

Answers

Answer: Natalia travels 15 meters to get from home to school

She travels 15 meters to go to school

A certain shampoo is available in two sizes. A 14.2-ounce bottle costs $3.98. A 33.9-ounce bottle costs $9.98.
Find the unit price for each size. Then state which size is the better buy based on the unit price.

Round your answers to the nearest cent.

Answers

Answer:

28 cents, 29 cents, The 14 oz bottle is the better buy.

Step-by-step explanation:

For part 1: Divide 3.98 ÷ 14.2. That equals 28 cents.

For part 2: Divide 9.98 ÷ 33.9. That equals 29 cents, one more than the other shampoo.

That means that shampoo 1 is the better buy

Hope this helps :)

-jp524

28 cents, 29 cents, the 14 oz bottle is better to buy.

Which describes all decimals that are rational numbers?
A. the decimal terminates or repeats.
B. the decimal terminates and does not repeat.
C. the decimal neither terminates nor repeats.
D. the decimal repeats and does not terminate.

Answers

Answer: A. the decimal terminates or repeats.

===========================================================

Explanation:

A terminating decimal example would be something like 0.2 which converts to the rational number, aka fraction, 1/5. The word "terminate" means "stop", so it's any decimal that doesn't go on forever.

A repeating decimal is something like 0.33333 where the 3s go on forever, and that converts to 1/3.

If any of these conditions happen, then the number is rational.

--------

For something like pi = 3.14159... where there isn't a pattern and it goes on forever, then we consider this number irrational. The term "irrational" literally means "not rational". So this allows us to rule out choice C.

Choices B and D are partially true, but they only paint half the picture needed to form all rational numbers. Choice A is the most complete statement.

In other words, while choice B is technically true, it leaves out repeating decimals. Choice D is the same way but it leaves out terminating decimals. So we can rule out choices B and D.

The answer is aaaaaaaaaaaaaaaaaaaa

Plz help will be marked BRAINLIEST
Thanks!

Answers

we know that a = b and c = 30

Since b + 30 = 90, we know b = 60.
That means a = 60

a = 60
b = 60
c = 30

Answer:

a) 60°

b) 60°

c) 30°

Step-by-step explanation:

Get 60 by subtracting 30 from 90 because the angle is a right angle. Since b is identical to a and also is a right triangle, it will also be 60. Get c as 30 by looking at its vertical angle across from it.

im failing lol help The areas of the squares adjacent to two sides of a right triangle are 29.25 units^2 and 13 units ^2

Answers

Answer and Step-by-step explanation:

To find the length of z, we need the lengths of the other 2 sides first. Simply take the square root of both areas and that will be your sides.

[tex]\sqrt{13}[/tex] and [tex]\sqrt{29.25}[/tex]

Now find z, the hypotenuse.

[tex](\sqrt{13}) ^2 + (\sqrt{29.25} )^2 =z^2\\\\13 + 29.25 = z^2\\\\42.25 = z^2\\\\\sqrt{42.25} = z\\\\6.5 = z[/tex]

6.5 is the answer.

#teamtrees #PAW (Plant And Water)

The answer to your question is 6.5

Please help !! Will give brain !!!!

Answers

1 = $3,50
2 = $7.00
4= $14.00
6 = $21.00

Answer:

just add 3.50 for every time

Step-by-step explanation:

Which correctly compares 1/4 × (458 + 231) and (458 + 231) ÷ 4 without doing any calculations?
A. 1/4 × (458 + 231) < (458 + 231) ÷ 4
B. 1/4 × (458 + 231) = (458 + 231) ÷ 4
C. 1/4 × (458 + 231) > (458 + 231) ÷ 4
D. (458 + 231) ÷ 4 < 1/4 × (458 + 231)

Answers

Answer:

A

Step-by-step explanation:

i dont know im guessing bc finals are tommorow and i need points

A
I strongly think this is the answer

A: 1/5 units
B: 4 units
C: 15.5 units
D: 24 units
E: 18 units
With screenshot

Answers

E 18 the answer is 18 E
E is 18 B and 18 is E

help me plz help...../s.dhjfu

Answers

Answer:

20,160

Step-by-step explanation:

1 dollar= 160.75 so 6×160 = 960 liters

Cost of gas 960÷100×2100 = 20,160

The answer is 20/160 hope this helps

( Trigonometry question)
- will give branliest if it's the correct answer.-

Answers

Answer:

728.0067825

Step-by-step explanation:

Answer:

728 rounded

Step-by-step explanation:

i dnt know how I came up with the answer

please help me with this ​

Answers

Answer:

Dimensions are 10 x 9 x 7 and 9 x 4 x 5

Step-by-step explanation:

Divide the prism on the line that is 12cm

the top prism is 9 x 4 x 5 = 180
the bottom prism is 10 x 9 x 7 = 630

HELP MEEEEEEEEEEEE

Answers

Answer: A) 4

Explanation: Find where the y-int is on the graph.
The answer is 4 because x=0 there

Petra jogs 3 miles in 30 minutes. At this rate, how long would it take her to jog 7 miles?

Answers

Answer:

70 minutes

Step-by-step explanation:

if her pace for 1 mile is 10

70 minutes or 1 hour and 10 minutes

A wall is 60 feet tall. To avoid tipping over, the ladder must be placed 11 feet from the base of the wall. How tall of a ladder must you have to reach all the way to the top of the 60 foot wall?

Answers

61 feet

I got this by doing the pythagorean theorem, which is a^2+b^2=c^2

Plugging in the values, it is 60^2+11^2=c^2

Once solved, it gives you 61 feet
61 feet is the answer okkkkkkkkk

I picked a answer for this but i don't know if it is right can you check?

Answers

Answer:

yes its absolutely correct ☺️

good job

i can tell you that you are correct good job

The length of the minute hand of a clock is 11cm. What is the distance covered by the minute hand in 1 hour ?

69.1cm
or
34.54 cm

Answers

Step-by-step explanation:

[tex]\huge\mathfrak\pink{Answer✓✓.. ***°°°} \\ \\ \huge\mathfrak\green{69.1 \: cm} \\ \\ \huge\mathcal\purple{hope \: it \: helps \: ***}[/tex]

69.1 :) hope this helps

giving brain list for correct

Answers

Answer:

216 ft^2

Step-by-step explanation:

area of a triangle: (height * base)/2

in this problem,

height = 12, base = 36

area = 12*36/2 = 6*36 = 216

216 ft^2

Answer: 216

Step-by-step explanation:

Cindy's yard is 30 feet long and 40 feet wide. Edward charges 2 cents per square foot to mow yards. How much would Cindy have to pay to have Edward mow her yard?

A.) $24

B.) $240

C.) $48

D.) $480

Answers

The answer is A 24$ because 30x40 is 1200 and 1200x 0.02 is 24
A 24 because u gotta do 30x40

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Answers

√99 is an irrational number

D is the answer because it’s irrational

Jonas has 1728 copies of a 1 × 1 × 1 cube with the net
shown, where c is a positive integer and c < 100. Using
these 1728 cubes, Jonas builds a large 12×12×12 cube in
such a way that the sum of the numbers on the exterior
faces is as large as possible. For some values of c, the sum
of the numbers on the exterior faces is between 80 000 and
85 000. The number of such values of c is
(A) 39 (B) 38 (C) 37
(D) 36 (E) 35

Answers

Answer:

37 :))

Step-by-step explanation:

Look thorugh the photo B)

Sorry its diagonal

The number of such values of c is 37, whose sum

of the numbers on the exterior faces is between 80 000 and

85 000.

The correct option is (C)

What is inequality?

A statement of an order relationship—greater than, greater than or equal to, less than, or less than or equal to—between two numbers or algebraic expressions.

1. Top or Bottom

Corners: (2c+100) x 8Non- corners: 10(c+100) x 4 x210 x 10x 100 x 2 =20000

2. Middle Layers:

Corners: (c+100)x 4 x 10Non- Corners: 100 x 10 x 4 x 10 =40000

So,

(2c+100) x 8 + 10(c+100) x 4 x2 +  (c+100)x 4 x 10 + 20000 + 40000

16c + 800 + 80c + 8000 + 40c + 400 + 60000

136c + 72800

As per the condition:

136c + 72800≤ 85000136c≤85000-72800

c≤89

and, 136c≥80000-72800

 c≥53

c= 89-53 =37

Hence, the number of such values of c is 37

Learn more about inequality here:

https://brainly.com/question/20383699

#SPJ2

Do the ordered pairs (2, 20), (5, 15), (12, 19), and (14, 13) represent a function?

Answers

Answer:

yes

Step-by-step explanation:

Yes it does because the c values don’t repeat

What is the range of the scatter plot shown in the picture?

Answers

Answer:

2

Step-by-step explanation:

Range is all y values

2 is the answer …………….

Match these items.

1. a number to be multiplied
GCF
2. 5
factor
3. 6
prime number
4. greatest common factor
LCM
5. least common multiple
composite number

Answers

Answer:

gcf gose with 4 lcm gose with 5 5 is a prime number wich leaves 5 to go to 1

Is this polygon regular or irregular?

Answers

Answer:

Make me a Brainlist pls

Step-by-step explanation:

It's an Irregular polygon

Answer:

irregular

Step-by-step explanation:

regular shapes have all equal sides while irregular polygon sides aren't congruent. lemme know if I'm right. Goodluck!

Simplify by rationalizing the denominator.
15√2 / √270

Answers

[tex] \frac{ \sqrt{15} }{3} [/tex] ✅

Step-by-step explanation:

[tex] \frac{15 \sqrt{2} }{ \sqrt{270} } \\ \\ = \frac{15 \sqrt{2} }{ \sqrt{270} } \times \frac{ \sqrt{270} }{ \sqrt{270} } \\ \\= \frac{15 \sqrt{2} \times \sqrt{270} }{270} \\\\ (∵ \sqrt{a} \times \sqrt{a} = a) \\\\ = \frac{15 \sqrt{540} }{270} \\ \\= \frac{ \sqrt{2 \times 2 \times 3 \times 3 \times 3 \times 5} }{18} \\ \\ = \frac{ \sqrt{ {2}^{2} \times {3}^{2} \times 15 } }{18} \\ = \frac{2 \times 3 \sqrt{15} }{18} \\ \\ = \frac{6 \sqrt{15} }{18} \\ \\ = \frac{ \sqrt{15} }{3} [/tex]

[tex]\large\mathfrak{{\pmb{\underline{\orange{Mystique35 }}{\orange{♡}}}}}[/tex]

its really the right answer…..

The owner of a furniture store orders 6 chairs for every table she orders.
Which of the following equations can be used to find c, the total number of chairs she will order when she
orders t tables?

A. 6c=t
B. t + 6 =c
C. 6t=c
D. c +6=t

Answers

Answer:

A. 6c = t

Step-by-step explanation:

6 c- chairs for each table.for example 3 table, so 6 chairs for each table 3 * 6 = 18.

2. 18 chairs for 3 tables.

The correct answer is b .t+6=c

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Answers

5x - 4y + 2z :

5 (-8) - 4 (3) + 2 (-4)

-40 - 12 - 8

- 60

3x + 2 (x - 4) = 6x - 8 - x

3x + 2x -8 = 6x - 8 - x

5x - 8 = 5x - 8

Since both sides are equal, it has infinitely many solutions.

To find how many students chose flying, just add the numbers 26 and 12 to get 38 students.

Number 1 is A -60 because I did it myself right now

the ratio of a map is 1:100
the distance from point A to B in the map is 8cm
what is the real distance from A to B

Answers

the Answer might be ................800cm

Answer:

800cm

Step-by-step explanation:

8 is 8 times more than 1, 100 times 8 is 800

Please Help Me. No links or I will report. Explain.

How are you?
Hope you have a good day/night!

Answers

Answer:

7

Step-by-step explanation:

Rewrite 9+2(5-3)-6 as

9+2*2-6

9+4-6

Answer: B
Hope this helps :)
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