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

Help me with these two questions ASAP (I will try to mark brainliest)

Answers

Answer:

1. C

2.B

IG

Step-by-step explanation: CALCULATE

Answer:

the answer would be a is correct

Which of the following situations combine to make zero?

A- A friend opens a checking account with $30. His first purchase made with his debit card totals $28

B- The temperature falls 10 degrees below zero and then rises 20 degrees to be 10º F



C- A friend borrows $20 and promises to return double the amount.

D- A start up business has income equal to its expenses.

Answers

Answer:

D

Step-by-step explanation:

Why A is wrong:

If a friend has $30 in his checking account and he made a purchase of $28, the equation would be:

30-28 = $2, which does not equal zero.

Why B is wrong:

The temperature was zero and went down to negative ten. It went up to 10, not zero. So this is also wrong.

Why C is wrong:

A friend borrowed $20 dollars and promised to return double the amount, $40. The equation for this is:

20 - 40 = -20, which also does not equal zero

Why D is correct:

Income is how much you earn

Expenses is how much you pay.

If both of them are equal, then your income is zero, which is the correct answer.

Hope this helps :)

-jp524

D is the answer to this question

Hw help (again)
hope everyone is having a wonderful day <3

Answers

Answer:

The numbers are 8 and 6

Step-by-step explanation:

Let x and y be the two numbers

x+y = 14

x-y = 2

Add the two equations together

x+y = 14

x-y = 2

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

2x +0y = 16

Divide by 2

2x/2 = 16/2

x = 8

Now find y

x+y = 14

8+y =14

Subtract 8 from each side

8+y-8 =14-8

y =6

The numbers are 8 and 6

Answer:

8 and 6

Step-by-step explanation:

$18.75 to $18.60 identify the percent of change as an increase or decrease . then find the percent of change round to the nearest tenth of a percent , if necessary

Answers

Answer:

0.8%

Step-by-step explanation:

There is a decrease in percentage by 0.8%.

What is percentage?

Percentage is defined as a given part or amount in every hundred. It is a fraction with 100 as the denominator and is represented by the symbol "%".

The given decimal numbers are $18.75 and $18.60.

We know that, percentage change = (Original price-New price)/Original price ×100

= (18.75-18.60)/18.75 ×100

= 0.15/18.75 ×100

= 0.008×100

= 0.8%

Therefore, there is a decrease in percentage by 0.8%.

To learn more about the percentage visit:

brainly.com/question/24159063.

#SPJ5

Given the table of the following quadratic function, which statement about this function is NOT true?

A. The y-intercept of f(x) is 6.
B. The zeros of the function f(x) are -3 and 1.
C. The minimum of the function f(x) is 8.
D. The axis of symmetry of the function f(x) is x = -1.

Answers

C is the incorrect answer


Abby is 4 – feet tall. Craig is 4 feet tall.
a. Who is taller?
b. How much taller is this person? Show your work.

Answers

A. Craig is taller
B. The positive is higher than the negative value

Answer:

They the same height my guy no difference

Step-by-step explanation:

what angles are complementary to each other ?

Answers

Step-by-step explanation:

Complementary Angles :-

When the sum of two angles is 90°, then the angles are known as complementary angles.

Here the complementary angles are angle 3,1

Answer:

the complementary angles are angle 3,1

Step-by-step explanation:

Plz help will be marked BRAINLIEST
Thanks!

Answers

3x = 180-132
3x = 48
X = 16

Regards,
ArmyCee:)

Answer:

x = 16

48 + 132 = 180

Step-by-step explanation:

16 (x) x 3 = 48

x = 16

Hope this helps! Have a wonderful rest of your day!

-kiniwih426

which angles are adjacent to 8 ? select all that apply

Answers

Answer:

I think 5 and 7 I got that question

Answer:

7 and 5

Step-by-step explanation:

Added together their angles are 180 degrees

QUICK! WHOEVER GETS CORRECT FIRST GETS BRAINLIEST AND 20 POINTS!

What are the dimensions of the base of the pyramid?

8 ft by 6 ft
8 ft by 3 ft
6 ft by 3 ft, 8 ft by 9 ft

Answers

Answer: 24ft squared

Step-by-step explanation:

8x3 = 24

Answer:

8 fit by 3 fit

coz the base is the part which is at the bottom

The mean of four numbers is 21. The range is 15. The greatest number 29.The two middle numbers differ by 3

Answers

Answer: 5

Step-by-step explanation:

The answer to this question is the number 5

Can someone help with this?

Answers

Answer: 8(25+x)>500;x>37.5 is the answer i believe

explanation:

in which expression does g have a coefficient of 8
8g
8 + g
g - 8
g/8

Answers

Answer:

8g

Step-by-step explanation:

In 8g, g has the coefficient 8:  we multiply g by 8.

8g is saying 8 grams that is the right answer

Leslie buys a movie ticket for $12. She then spends 75% of the ticket price on food and the concession stand. How much money did she spend in total?

A.) $12

B.) $21

C.) $9

D.) $108

Answers

the answer is B.) $21

Answer:

the answer is B

Step-by-step explanation:

Can I get help? And plzzzz give steps to how you found your answer.

Answers

Answer:

C)

Step-by-step explanation:

C is an equation that works in favor of all examples

C) f(x)=4x+1

4(1)+1 = 5

4(3)+1 =13

4(5)+1 = 21

The answer would be C.

HELP ME PLEASEEEEEEEEE!!!!!! :))

Answers

Answer:

This is what I am learning in math rn so I'm not totally sure if this is correct but I'll try. I believe the answer is B.

The person above is correct

1. Select all the equations that have 2 solutions.
A. (x + 3)2 = 9
B. (x – 5)2 = -5
C.)(x + 2)2 – 6= 0
D. (x – 9)2 + 25 = 0
E. (x + 10)2 = 1
F. (x - 3)2 = 0
G.5 = (x + 1)(x + 1)​

Answers

.....................

A bookstore charges $4 for all children's books. Elijah graphs the function that gives the total cost, y, in dollars to buy x number of books. Which ordered pair is a point on the graph of the function?

A) (2,8)
B) (4,12)
C) (9,18)
D) (20,5)

Answers

A is the right answer

Answer:

A is the right answer

Step-by-step explanation:

Four playful mathematicians were eating lunch together at an outdoor cafe. They noticed a diamond-encrusted Rolex had been left behind at the table next to them, so they quickly looked around for the person who had vacated the table. They saw the owner of the watch driving away. "Quick, get the license plate!" urged one of the mathematicians, seeing that it was only a four-digit number.

When the car had disappeared around the corner, they put together these characteristics they'd noticed about the number:

The first said, "One of the digits is neither prime nor composite."
The second contributed, "The digit in the hundreds place is three times the digit in the thousands place."
The third added, "The digit in the ones place is four times greater than the digit in the tens place."
The fourth piped up with the last bit of information. "The smallest prime number is in the thousands place. We have enough information to help us locate the owner of the watch."
What number did the four playful mathematicians see on the license plate?

Answers

Answer: The licence plate number would be 2614

Step-by-step explanation:

The number 2614 four playful mathematicians see on the licence plate.

What is number?

A number is a mathematical entity that can be used to count, measure, or name things. For an example, 1, 2, 56 etc. are the numbers.

We have some information about the four-digit number:

One of the digits is neither prime nor composite.The digit in the hundreds place is three times the digit in the thousands place.The digit in the ones place is four times greater than the digit in the tens place.The smallest prime number is in the thousands place.

Based on the information given, the number would be 2614 which follows the above conditions.

Thus, the number 2614 four playful mathematicians see on the licence plate.

Learn more about the number here:

brainly.com/question/17429689

#SPJ2

Plz answer will be marked BRAINLIEST

Answers

a=90 degrees divide by 5
=18 degrees
2c+a=90
2c+18=90
2c=90-18
2c=72
divide each side by 2
c=36
therefore:
2c=72

b=4a+c
b=4(18)+36
b=72+36
b=108

Answer:

a=90 degrees divide by 5

=18 degrees

2c+a=90

2c+18=90

2c=90-18

2c=72

divide each side by 2

c=36

therefore:

2c=72

b=4a+c

b=4(18)+36

b=72+36

b=108


Help please???!!!!!!!

Answers

Answer:

I would say 125 - C

Step-by-step explanation:

It is the most reasonable answer.

Hope this is correct!

The correct answer is C

IF YOU ANSWER CORRECTLY I WILL GIVE BRAINIEST!,
2. At a fair, each person can spin two wheels of chance. The first wheel has the numbers 1, 2, and 3. The second wheel has the letters A and B. (d) List all the possible outcomes of the compound event. (e) If you spin both wheels, what is the probability that you get either a 1 or an A? Explain.

And pls don’t answer if you don’t know it.

Answers

Answer:

Possible outcomes: 1a 1b 2a 2b 3a 3b  

Outcomes for spinning a one = 2

1a, and 1b 2/6

Outcomes for spinning an "a" = 3

1a, 2a, and 3a.

1a is already in the first set so we can exclude it. 2/6

2/6+2/6=4/6

There is a 4/6 or 2/3 chance of getting either an a or an 1

 

Answer:

(d) 1A, 1B, 2A, 2B, 3A, 3B

(e)  2/3 or 66.66% chance

Explanation is below

Step-by-step explanation:

(d) The Total outcomes are 3*2 = 6, because there are 3 numbers and 2 letters.

The outcomes are:

1A

1B

2A

2B

3A

3B

(e) Of the 6 outcomes, 3 of them have A and 2 of them have 1. But one of them has an A and 1, so it is 4 outcomes: 1A, 1B, 2A, and 3A.

So it is 4/6 = 2/3, or 66.66...% chance

25 POINTS!! PRE-ALGEBRA MATH! PLEASE HURRY! I WILL GIVE BRAINLIEST!
Part B: Describe how you can make the line of the best fit. write the approximate slope and y-intercept of the line of best fit. Show your work, including the points that you use to calculate the slope and y-intercept.


(please explain how you got the slope and y-intercept with the numbers from the question if you would like brainliest)

Answers

Answer: We are using a line regression tool to solve the parameters asked in the problem. We can use online tools or that of Excel. According to the tool, the best fit values are

Slope0.3848 ± 0.03956

Y-intercept0.6053 ± 0.6370

X-intercept-1.573

1/Slope2.598

Step-by-step explanation: Best fit lines make sure that the standard deviation at each point is minimum from the best fit line.

Answer:

Step-by-step explanation:

Slope0.3848 ± 0.03956

Y-intercept0.6053 ± 0.6370

X-intercept-1.573

1/Slope2.598

Evaluate (-6/5 * 15/24) ÷ (7/9 x -1 17/18)

Answers

Answer:

243 /490     (Decimal: 0.495918)

Step-by-step explanation:

(-6/5 * 15/24) Simplified is -3/4

(7/9 x -1 17/18) Simplified is -1 83/162

So, -3/4 ÷ -1 83/162 = 243/490

[tex]\longrightarrow{\blue{ \frac{243}{490} }}[/tex] 

[tex]\large\mathfrak{{\pmb{\underline{\red{Step-by-step\:explanation}}{\red{:}}}}}[/tex]

[tex]( \frac{ - 6}{5} \times \frac{15}{24} ) \div ( \frac{7}{9} \times - 1 \frac{17}{18} )[/tex]

[tex] \\= ( \frac{ - 90}{120} ) \div ( \frac{7}{9} \times \frac{ - 35}{18} )[/tex]

[tex] \\= ( \frac{ - 90}{120} ) \div ( \frac{ - 245}{162} )[/tex]

[tex] \\= ( \frac{ - 90}{120} ) \times ( \frac{ - 162}{245} )[/tex]

[tex]\\ = \frac{14580}{29400} [/tex]

[tex] \\= \frac{243}{490} [/tex]

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

helppp plzzzz...also give steps..plz

Answers

Answer:

4.5 cm

Step-by-step explanation:

The volume of a sphere is given by

V = 4/3 pi r^3

121.5 pi = 4/3 pi r^3

Divide each side by pi

121.5 = 4/3  r^3

Multiply each side by 3/4

3/4 *121.5 = 3/4 * 4/3  r^3

91.125 = r^3

Take the cube root of each side

(91.125)^ (1/3) = r^3 ^(1/3)

4.5 = r

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Help with math please earn 10 points

Answers

I think it’s the second one

Answer:

Option 3: y = -0.5 + 27

Step-by-step explanation:

Where the + 27 comes from: It comes from where the line starts

Negative slope always goes down, and has negatives. Hence the answer is 3.

what is the surface area of the figure? width = 4.2 ft length = 7.8 ft height = 2 ft

Answers

The surface area is 113.52 feet^2
The surface are is 113.52 feet.

I KINDA NEED HELP WITH THIS ILL GIVE BRAINLIST WHOEVER HAS THE CORRECT ANSWER! THANKS

Answers

Answer: 48

Step-by-step explanation: YOU MULTIPLY 6 AND 8.

I pretty sure it’s 48

PLS HELP ME
Fine the circumference

Answers

Bgggvhhgfb dgfvvvcfvv

Answer:

2. 153.93804

Step-by-step explanation:

7 squared times pi is 153.93804

Help me please !!!!!!!

Answers

Answer:

3z+9=1-z

collect like terms

3z+z=1-9

4z=-8

divide both sides by 4

z=-4

Answer:

z= -4

Step-by-step explanation:

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