can someone help me with this please :)


will give brainliest

Answer:

Option A is correct option

Step-by-step explanation:

We need to find which number sentence is not true.

We will check each option.

Option A

|-20| < 20

We know that |-a|=a

20 < 20 (false)

So, this number sentence is not true.

Option B

|9| = 9

We know that |a|=a

9=9 (true)

So, this number sentence is true.

Option C

|-20|>|9|

We know that |-a|=a

20>9 (true)

So, this number sentence is true.

Option D

|9| < 20

We know that |a|=a

9<20

So, this number sentence is true.

So, Option A is correct option

Answer: no solutions

Answer:

The correct answer would be B! -7

Answer:

8

Step-by-step explanation:

640/80=8

8*80=640

Answer:

The answer is 8.

Step-by-step explanation:

80x=640

80x /80 = 640 /80

x=8

Answer:

2.66666666667     Rounded it would be 2.7

Step-by-step explanation:

Answer:

Option C

Step-by-step explanation:

Just looking at the coordinate plane, you can count the lengths of both of the triangles: Option C’s triangle of the distance between A and B is 3 units, and the distance between B and C is also 3 units. But, Option D’s triangle has a length of 4 and 3, where the distance between A and B is 4 units, and the distance between B and C is 3 units. So choose Option C because the distance between A and B in the triangle is 3 units, and the distance between B and C in the tirangle is also 3 units.

Hope this helps and answers your question! :)

Answer: 7.3 pounds of coarse sand.

Step-by-step explanation:

Answer:

x= 1

Step-by-step explanation:

open brackets first

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

Calculate

5x+3= 2x+6

transpose the like terms

5x-2x= 6-3

calculate

3x= 3

x= 3/3

x= 1

Answer:

x = 3

Step-by-step explanation:

8x - 3(x - 1) = 2x + 6

simplify

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

add like terms

5x + 3 = 2x + 6

subtract 2x from both sides

3x + 3 = 6

subtract 3 from both sides

3x = 3

divide by 3

x = 3

Answer:

Step-by-step explanation:

3^2*5^2= 225

9*25=225

Three to the 2nd power times 5 to the 2nd power.

Answer:

8.90 seconds

Step-by-step explanation:

When the rocket hits the ground, its height ( y ) will be zero. This means we can write the equation as:

So we need to solve that equation:

x₁ = -0.84

x₂ = 8.90

We discard x₁, as it is negative.

So the answer is x₂, 8.90 seconds.

Answer:

x = 12 , y = 10

Step-by-step explanation:

Let x , y are two numbers.

x > y

1 ) Three times the greater is 18 times their

difference

3x = 18( x - y )

x = 6( x - y )

x = 6x - 6y

6y = 5x

y = 5x/6 ——-( 1 )

2 ) 4 times the smaller is 4 less than twice

the sum of the two

4y + 4 = 2 ( x + y )

2y + 2 = x + y

y = x -2 ——( 2 )

From ( 1 ) and ( 2 ) ,

5x/6 = x -2

( 5x /6 ) - x = -2

( 5x - 6x ) /6 = -2

-x = -12

x = 12

Put x = 12 in equation ( 2 ) , we get

y = 12 - 2

y = 10

Therefore ,

x = 12 , y = 10

Answer:

the answer is b

Step-by-step explanation:

4*4=16, 16+6=22, making b correct

Answer:

Step-by-step explanation:

.

1) About how much medicine did he make in grams?

Dr. Mann mixed

9.357 g of chemical A,

12.082 g of chemical B,

7.502 g of chemical C

We can determine total amount of medicine that was prepared by Dr. Mann by summing up the chemicals (A,B,C)

=( 9.357grams of A + 12.082grams of B+ 7.502grams of C)

= 28.941 grams in total

The next step is to round up those chemicals value to their nearest tenth as asked by question

Dr. Mann mixed

9.357 g of chemical A= 9.4grams

12.082 g of chemical B,=12.1grams

7.502 g of chemical C =7.5grams

2)Estimate the amount of each chemical by rounding to the nearest tenth of a gram before finding the sum.

Then the sum after rounding up to nearest tenth is

(9.4grams +12.1grams + 7.5grams)

=29 gram

Answer:

Step-by-step explanation:

(t-8)-(t+15)

t-8-t-15

t-t-8-15

-23

The value of the expression after subtraction will be;

⇒ - 23

What is mean by Subtraction?

Subtraction in mathematics means that is taking something away from a group or number of objects. When you subtract, what is left in the group becomes less.

Given that;

The expression is,

⇒ (t - 8) - (t + 15)

Now,

Subtract the expression as;

⇒ (t - 8) - (t + 15)

⇒ t - 8 - t - 15

⇒ t - t - 8 - 15

⇒ - 23

Thus, The value of the expression after subtraction will be;

⇒ - 23

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Answer:

a = 14, x = 55, y = 60

Step-by-step explanation:

a: Find the number that is between 10 and 18, 10 + 18 = 28 divide by 2 = 14, so a = 14

x: Due to corresponding angles theorem, so x = 55 degrees

y: Straight line is 180 degrees, and as we can see at the left side of the image there's a straight line where only 55 degrees was identified so 180 - 55 = 125 and since x = 55 degrees due to corresponding angles, the angle above y is 120 also due to corresponding angles. A quadrilateral is 360 degrees, so:

125 + 55 + 120 + y = 360

180 + 120 + y = 360

300 + y = 360

y = 60

Answer:

Jane has a constant rate of pay because her earnings go up by 12 every unit of time.

By rearranging x = 7y - 5 to make y the subject, we get

x + 5 = 7y ( By transposition method )

or, [tex] \huge \purple {\tt {\frac{x + 5}{7} = y}} [/tex]

[tex] \huge \pink {\tt {y = \frac{x + 5}{7}}} [/tex]

The equation x = 7y - 5 can be rearranged as y = x/7 + 1/7 after making the subject as y.

It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.

If in the linear equation, one variable is present, then the equation is known as the linear equation in one variable.

It is given that:

The equation is:

x = 7y - 5

To make the subject as y:

x + 5 = 7y

Or

7y = x + 5

y = 1/7[x + 5]

y = x/7 + 1/7

Thus, the equation x = 7y - 5 can be rearranged as y = x/7 + 1/7 after making the subject as y.

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Answer:

I'm pretty sure it would be 5x

Step-by-step explanation:

Answer:

IN 7 HOURS

Step-by-step explanation:

YOU DO 15*7+10

Answer:

y=2x-4

Step-by-step explanation:

Answer:

yes

Step-by-step explanation:

all integers can be formed from the division of two other whole numbers.

Answer:

yes all integers are rational numbers

Answer:

178.3

Step-by-step explanation:

Answer:

1500 points

Step-by-step explanation:

Given

[tex]Initial\ Score = 100[/tex]

[tex]Rate = 2[/tex]

Required

Determine the total score in first 4 games

This question illustrates a geometry progression and will be solved as follows:

[tex]S_n = \frac{a(r^n - 1)}{r - 1}[/tex]

Where

[tex]a = First\ Term = 100[/tex]

[tex]r = common\ ratio = 2[/tex]

[tex]n = 4[/tex]

[tex]S_4 = \frac{100(2^4 - 1)}{2 - 1}[/tex]

[tex]S_4 = \frac{100(16 - 1)}{1}[/tex]

[tex]S_4 = \frac{100(15)}{1}[/tex]

[tex]S_4 = 1500[/tex]

Hence, the score in first four games total 1500 points

Answer:

5x - 4 = 11

1/2x + 15 = 9

Step-by-step explanation:

I dont exactly know how u would show work.

If it says something is less than a number, then it will be at the back of the equation. So skip that part and u will see it says five times a number. The number is unknown therefore it will a variable (i chose x to be the variable). 5 times x is 5x. Minus the 4 would be 5x - 4. Then it says the equation equals 11. So 5x - 4 = 11.

If it says something is more than a number, it can be on either side of the equation using the commutative property of addition. But if we want to consider it being like subtraction, then it also will be in the back of the equation. A half is one over two (1/2). A half of x is 1/2x. Plus the 15 would be 1/2x + 15. It then states that the equation equals 9. So 1/2x + 15 = 9.

Answer:

1.KL

2.FG

Step-by-step explanation:

I hoped I helped

The side corresponds to side GE is Kl and the side corresponds to side JK is GF

Similarity is a term used for similar figures, in similar figures, we have equal corresponding angles and corresponding sides in equal ratios.

Given that, the two triangles are similar, since the figure of triangles is not given, we will consider the triangles attached to the solution,

We know that, the similar triangles are having corresponding sides are in equal ratios,

The triangles are Δ GEF ~ Δ KLJ

So, the corresponding sides are :

GE ~ KL

EF ~ LJ

GF ~ JK

Hence, the side corresponds to side GE is Kl and the side corresponds to side JK is GF

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Answer:

A. 1/3

Step-by-step explanation:

Dado que:

una manzana se corta en 12 partes y se comen ocho partes.

La fracción de manzanas consumidas = 8/12

= 2/3

La fracción de manzanas que quedan = valor original de la manzana que se corta - la fracción de la manzana que se come

La fracción de manzanas que quedan  [tex]=1- \dfrac{8}{12}[/tex]

La fracción de manzanas que quedan  [tex]=\dfrac{12-8}{12}[/tex]

La fracción de manzanas que quedan [tex]=\dfrac{4}{12}[/tex]

A la fracción más baja; obtenemos = 1/3

2/5 by 31/10 is 4/31 and 4 1/3 by 4/7 is 91/12 and 3 1/6 by 9/10 is 95/27 and 5/8 by 2 7/12 is 15/62.

Answer:

a

Step-by-step explanation:

the answer is a because adding -3 to 12 will make 9 and -3 × 12 is -36.

Answer:

D

Step-by-step explanation: