Mathematics High School

In algebra (grade 7) :-
what does + and - make?
what does + and + make?
what does - and + make?
what does - and - make?

Answers

Answer 1
1) -
2) +
3) -
4) +

Whenever the signs are opposite, it’s negative. Whenever signs are same, it’s positive.

Related Questions

Ray is six years younger than Tom. John is three times as old as Ray. Let Tom be x years old. The three of them
have a combined age of 101. How old is each person?

Answers

Answer:

Ray = 19 yrs old
Tom = 25 yrs old
John = 57 yrs old

Explanation:

Let x be the years of Tom

R = x - 6
J = 3R = 3(x - 6)
T = x

R + J + T = 101
x - 6 + 3(x - 6) + x = 101
2x - 6 + 3x - 18 = 101
5x - 24 = 101
5x = 125
x = 125/5 = 25

R = 25 - 6 = 19
J = 3(25 - 6) = 57
T = 25

What is the sum of all the positive integers from √24 to √102

Answers

Answer:

[tex] \sqrt{24} = 4.9[/tex]

[tex] \sqrt{102} = 10.1[/tex]

positive integers = x

4.9 < x < 10.1

x = 5, 6, 7, 8, 9, 10

sum = 5 + 6 + 7 + 8 + 9 + 10

= 45

what is the common denominator of 4/5 and 9/4

Answers

hope this helps some

The common denominator is 16/20 and 45/20

Write a multiplication expression without exponents that is equivalent to 3^3.

Answers

Hi! I'm happy to help!

This expression is an exponent, or repeated multiplication. 3^3 is three multiplied by itself (3), 3 times, or 3×3×3

So, our non-exponent expression will be 3×3×3.

I hope this was helpful, keep learning! :D

HELP ASAP HOMEWORK HELPPPP

Answers

that picture is kinda blurry

what is 3 feet + 14 inches

Answers

Answer:

3.14

Step-by-step explanation:

Which point represents the opposite of -2?
A B C D
5 3 2 0 1 2 3 4 5
ОА
ОВ
ОС
OD

Answers

Answer:

your answer is point D represent

Solve 6x + ( 14x - 5 ) + ( 17 - 3x ) , - ( 2 - x ) -3 ( 6 + 8x ) -12, ( 4x - 9 ) + 8 ( 2x + 3 ) -7x

Answers

Answer:

Step-by-step explanation:

6x + ( 14x - 5 ) + ( 17 - 3x )

= 17x + 12

- ( 2 - x ) -3 ( 6 + 8x ) -12,

= -23x - 32

( 4x - 9 ) + 8 ( 2x + 3 ) -7x

= 13x +15

Which names are other ways to name _1? Select each correct answer.

y
pfy
pyf
p
yfp
ypf
f​

Answers

Answer:

your answer is F

I hope it's helps you

Which of the following equations has the same solution as: |3x + 2| = 4x + 5

Answers

Answer:

Step-by-step explanation:

Find the largest integer that is below Square root 10

Answers

Answer:

3.16

Step-by-step explanation:

Find the value of the following question​

Answers

Step-by-step explanation:

[(-¾)`²]² =

[ (-4/3)²]² =

[ 16/9]² = 256 / 81

Answer:

the req answer is 256/81

i need help with the top part

Answers

Answer:

1. (1, 2)

2. (-5, 7)

3. (-6, -5)

4. (0, -3)

Step-by-step explanation:

(1 - 4) Explanation:

If we're asked to move to the right, make the x-coordinate a positive number.

If we're asked to move to the left, make the x-coordinate a negative number.

If we're asked to move upwards, make the y-coordinate a positive number.

If we're asked to move downwards, make the y-coordinate a negative number.

What is 234 (two hundred and thirty four) X 0.35?

Answers

Answer:

81.9

Step-by-step explanation:

mark me brainliest plzz

234(234)×0.3

234×234×0.3

54,756×0.3

16,426.8

NEED HELP ASAP will give BRAINLIEST :)

Answers

10a+4+14a-2=14a+31
Add the common variables
24a+4-2=14a+31
24a+2=14a+31
Subract 2 from each side
Subract 14a from each side
Then divide each side by 10
A=-2.9

A= -3.7

What is the value of U. 51degrees, 79degrees and u.

Answers

Hi ;-)

[tex]u+51^o=79^o\\\\u=79^o-51^o\\\\\huge\boxed{u=28^o}[/tex]

The required equation is,

→ 51° + U = 79°

Now we should,

find the required value of U.

→ 51° + U = 79°

→ U = 79° - 51°

→ [U = 28°]

Let's check whether the required value of U is correct or incorrect,

→ 51° + U = 79°

→ 51° + 28° = 79°

→ 79° = 79°

→ LHS = RHS

Hence, 28° is the required value of U.

5(1+s)=9s+6
----------------

Answers

Answer:

Solution given

5(1+s)=9s+6

distribute

5+5s=9s+6

subtract both side by 5s

5+5s-5s=9s-5s+6

solve like terms

5=4s+6

subtract both side by 6

5-6=4s+6-6

-1=4s

divide both side by 4

-1/4=s

Answer:

[tex]s=-\frac{1}{4}[/tex]

[tex]s=-0.25[/tex]

Step-by-step explanation:

[tex]5\left(1+s\right)=9s+6[/tex]

Apply distributive law:-

[tex]5\left(1+s\right)[/tex]

[tex]=5+5s[/tex]

[tex]5+5s=9s+6[/tex]

Now, Subtract 5 from both sides :-

[tex]5+5s-5=9s+6-5[/tex]

[tex]5s=9s+1[/tex]

Subtract 9s from both sides:-

[tex]5s-9s=9s+1-9s[/tex]

[tex]-4s=1[/tex]

Divide both sides by -4:-

[tex]\frac{-4s}{-4}=\frac{1}{-4}[/tex]

[tex]s=-\frac{1}{4}[/tex]

OAmalOHopeO

4. Find the quotient. -7 ÷ 14/3​

Answers

As an improper fraction this is equal to -3/2

As a mixed number, this is -1 and 1/2

As a decimal this is -1.5
as a Improper fraction that is equal to
-3/2
As a mixed number this is -1 1/2
as a decimal this is - 1.5

write each expression as a single power of 10​

Answers

Answer:

10⁸

Step-by-step explanation:

[tex]( \frac{10 ^{5} }{ {10}^{3} } ) ^{4} \\ (10 ^{5 - 3} ) ^{4} \\ (10 ^{2} )^{4} \\ (10 ^{2 \times 4} ) \\ (10^{8} )[/tex]

I hope it helped U

stay safe stay happy

because the expression is raised to a power, you're going to multiply the power inside the expression with the power outside the expression. Thus:

[tex] \frac{10 ^{20} }{10^{12} } [/tex]

Since the powers are being divided, you can just subtract 20 by 12. Then you would get:

[tex]10^{8} [/tex]

if the sum p(x)=ax^2-3x+b and q(x)=3x^3-12x^2+cx-13 is r(x)=3x^3-8x^2+3x-5,then find the value of a,b and c.​

Answers

Answer:

a=4, b=8, c=6

Step-by-step explanation:

ATQ, p(x) + q(x) = r(x)

3x^3-(12-a)x^2-(3-c)x+b-13 = 3x^3-8x^2+3x-5

Comparing the coefficients, we have

12-a=8, a=4

b-13=-5, b=8

-(3-c)=3, c=6

What is 5 x 0.1 + 4 x 0.01 + 8 x 0.001 written in standard form?

Answers

Answer:

0.548

Step-by-step explanation:

5 x 0.1 = 0.5

4 x 0.01 = 0.04

8 x0.0001 = 0.008

Now add them all together to get 0.548 in standard form.

I hope this helps! :)

Answer:

5 × 0.1 is 0.5

4 × 0.001 is 0.04

8 × 0.0001 is 0.008

so add all number is

0.548

5. You want to have a pizza party this weekend for some friends and family. You have $48
budgeted for the pizza and plan on having 56 pieces available. A large pizza has 16 pieces and
costs $14. A medium pizza has 12 pieces and costs $10. How many large and medium pizzas do
you need to buy?

Answers

2 large pizzas and 2 medium pizzas

-5r - 3r = ?
Can someone explain how to do solve this? ​

Answers

Answer:

-8r

Step-by-step explanation:

-5r - 3r

Combine like terms

Factor out r

r( -5-3)

-8r

Answer:

like bases  combine under add/subtract

-5 minus 3 is -8

-8r would be the solution

Step-by-step explanation:

Find the coordinates of the point
7
10 of the way from A to B.
-6
-4
-2
2
4
6
8
10
12
14
-10
-8
-6
-4
-2
2
4
6
8
10
x
y
A(−4,−8)B(12,7)

Answers

Answer:

The answer is

B. 6, 8, 11, 1, 7, 14, 10

C. 14, 10, 6, 9, 11, 8, 1

Step-by-step explanation:

In 2001 there were 2,900,000 pupils in a primary school and by 2004 number had increased to 4200000 what was the percentage increase give your answer to the nearest whole number​

Answers

Answer:

4.2M - 2.9M= 1300000

1.3/2.9x100= 44.83%

Answer:

59%

Step-by-step explanation:

2900000÷4200000× 100

if you rolled a die what is the probability that you would roll a 4 or 5

Answers

Answer:

1/3

a dice has 6 sides and the probability of getting 4 or 5 is just 2/6 which simplifies to 1/3

it would be a 1/3 chance

Which of the following is the equation of the line that has x-intercept -2 and y-intercept -6?
А. y=-3x - 6
B. y=-2x - 6
C. y=-6x-2
D. y = 3x - 2

Answers

Answer:

a

Step-by-step explanation:

y=mx+c, where c is the y-intercept. hence,

y=mx-6

at the x-intercept, y=0 and x = -2

0 = m(-2)-6

2m = -6

m = -3

y = -3x-6

Answer:

a

Step-by-step explanation:

0 = m(-2)-6

M = -3

Y = -3x-6

what is a example of the reflexive property.​

Answers

Answer: 3 is equal to 3

Explaination: We all have learned that reflexive property of equality means that anything is equal to itself. So, this property tells us that anything is equal to itself.

Help anyone can help me do this question,I will mark brainlest.​

Answers

Step-by-step explanation:

SEE THE IMAGE FOR SOLUTION

HOPE IT HELPS

HAVE A GREAT DAY

Answer:

you are totally correct

Please explain. I think it’s two step equations

Answers

Answer:  I don’t see anything

Step-by-step explanation:

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