Still helping my lil sister
Answer all three

Answer:

D.

Step-by-step explanation:

Took the test

Answer:

x=3

Step-by-step explanation:

This is a summation notation also called the sigma notation.

In this case it means starting with k=0 what's the sum of (1+k!) for all integer k until 4

So we just need to find the sum 1+0!+1+1!+1+2!+1+3!+1+4!=5+1+2+6+24=8+30=38

Answer:

100

Step-by-step explanation:

Answer:

Step-by-step explanation:

volume of 154×100×84 box = 1,293,600 cm³

dimensions of airspace = (154-4) by (100-4) by (84-4) = 150 by 96 by 80

volume of airspace = 150×96×80 = 1,152,000 cm³

volume of wood used = 1,293,600 - 1,152,000 = 141,600 cm³

Answer:

0.777......

Step-by-step explanation:

0.333...... + 0.444....​..

= 0.777......

Hope it helps :)

Please mark my answer as the brainliest

Step-by-step explanation:

The sum of 0.333.... and 0.444... is 0.777......

Answer:

the number is 4  

Step-by-step explanation:

Let us assume the number be n

given that

n - 4

Now it is doubled i.e. 2(n -4)

So, the equation is

2(n - 4) = n - 4

2n - 8 = n - 4

n = 4

hence, the number is 4  

If you want to know what's the value of x in 2 functions, you need to do a single variable equations.

I would say the answer would be 29.17% because [tex]\frac{7}{24}[/tex]=29.17%

Hope this helps

I'm so sorry if this is wrong

have a great day/night

Answer:

The answer is attached below.

Answer:

2 2/3

Step-by-step explanation:

Answer:

D, you simply just add 1.3 each time.

Answer:

d

Step-by-step explanation:

Answer:

4

Step-by-step explanation:

Answer:

4 because half of 8 is 4

[tex] \frac{5}{y} = \frac{5 + 3 }{y + x} [/tex]

[tex]5(y + x) = y( 5 + 3)[/tex]

[tex]5y + 5x = 8y[/tex]

[tex]5x = 8y - 5y[/tex]

[tex]5x = 3y[/tex]

[tex] \frac{x}{y} = \frac{3}{5} [/tex]

[tex]x = 3[/tex]

[tex]y = 5[/tex]

Answer:

y=3 and x=0

Step-by-step explanation:

3x−3y=−9. i'm going to solve for x.

3x−3y+3y=−9+3y

3x=3y−9

3x/3=(3y-9)/3  to isolate x we have to divide everything by 3

x=y−3

so now that we have x we can substitute it in 4x+4y=12

4(y-3)+4y=12

4y-12+4y=12

8y-12=12

8y-12+12=12+12

8y=24

8y/8=24/8

y=3

we have y which equals 3, so now we can substitute it into any equation so solve for x again.

3x – 3y = -9

3x-3(3)=-9

3x-9=-9

3x-9+9=-9+9

3x=0

3x/3=0/3

x=0

so, final answers are y=3 and x=0

checking our work:

3(0)-3(3)=-9

0-9=-9

-9=-9 true

4(0)+4(3)=12

0+12=12

12=12 true

Answer:

$6.75

Step-by-step explanation:

To find the unit price, just divide the total price ($47.25) by the quantity (7).

[tex]\frac{47.25}{7} = 6.75[/tex]

Answer:

17,20,23,26,29,32,35,

38,41,44,47,50,53,56,59,62,65,68,

71,74,77,80,83,86,89,92,95,98,101

you add 3 :)

Step-by-step explanation:

Answer:

y : x: = 5 : 4

Step-by-step explanation:

x to y = 4 to 5

Rewrite;

x:y = 4:5

Remember, a ratio is another way of representing a fraction, hence one can do the same operations that one could do with a fraction. Therefore, one can take the cross products of a ratio;

x : y= 4 : 5

5x = 4y

Inverse operations;

5x = 4y

x = [tex]\frac{4}{5}[/tex]y

Now substitute this into the equation y:x

y : [tex]\frac{4}{5}[/tex]y

Rewrite as a fraction;

[tex]\frac{y}{\frac{5}{4}y}[/tex]

Simplify;

[tex]\frac{1}{\frac{4}{5}}\\\\\frac{5}{4}[/tex]

Rewrite as a ratio;

y : x = 5 : 4

Answer:Researchers say a psychiatric condition characterized by a person's mistaken belief that he or she smells bad is vastly under-recognized. Called olfactory reference syndrome, the condition is "probably very common," says Katharine Phillips, MD, of Rhode Island Hospital in Providence. so you might just be thinking thst in your head man. just shower, brush teeth etc... or this could be a possibility...What causes the unpleasant smell is the bacteria that build up on your sweaty skin and react with sweat and oils to grow and multiply when sweat reacts with bacteria on the skin. These bacteria break down proteins and fatty acids, causing body odor in the process.

Step-by-step explanation:

not imp u say this is triangle rect from the pythagore theorie then u say in a tr rec the angles other than the 90 degree one is 45 degrees

Answer:

Step-by-step explanation:

The cost of tickets for a play is $3.00 for adults and $2.00 for children. 350 tickets were sold and $950 was collected. How many tickets of each type were sold?

Step 1: Set up a table with quantity and value.

Step 2: Fill in the table with information from the question.

The cost of tickets for a play is $3.00 for adults and $2.00 for children. 350 tickets were sold and $950 was collected. How many tickets of each type were sold?

Let x = number of $3 tickets

Let y = number of $2 tickets

Total = quantity × value

Step 3: Add down each column to get the equations

x + y = 350                    (equation 1)

3x + 2y = 950                (equation 2)

Use Substitution Method

Isolate variable x in equation 1

x = 350 – y                     (equation 3)

Substitute equation 3 into equation 2

3(350 – y) + 2y = 950

1050 – 3y + 2y = 950

3y – 2y = 1050 – 950

y = 100

Substitute y = 100 into equation 1

x + 100 = 350

x = 250

Answer: 250 $3 tickets and 100 $2 tickets were sold.

Answer:

value of QZ = 8 units and QM =  12 units.

Step-by-step explanation:

Given: In triangle PQR has medians QM and PN that intersect at Z.

If ZM = 4 units.

In the figure given below;  second median divided the two triangles formed by the first median in the ratio 2:1.

We have to find the value of QZ and QM;

QZ:ZM = 2: 1

⇒

Substitute the value of ZM =4 units and solve for QZ;

Multiply both sides by 4 we get;

Now, calculate QM;

QM = QZ+ZM = 8 + 4 = 12 units.

Therefore, the value of QZ and QM are; 8 units and 12 units

Answer:

y-2x=8 (label equation 1)

16+4x=2y (label equation 2)

divide equation 2 by 2 to find y

y=2x+8

sub this in equation 1

(2x+8)-2x=8

2x+8-2x=8

8=8

once you get to this point because 8=8 there are an infinite number of solutions because you can't divide by 0. So the answer is B

Answer:

The answer is 1.25

Step-by-step explanation:

The other guy is wrong. Anyways have a great day!!

Answer:

Sue paid $1.25 for a bottle of water

Step-by-step explanation:

Edge2021

Step-by-step explanation:

The number of vehicles is 25 and the no. of truck is 9 so the probability is 9/25