what is the value of 30-2(7+2)-1​

Hello

60 %  are girls

40 % are boys

40 % = 50 boys

60 % =  75 girls

75 + 50 =  125

Step-by-step explanation:

Let number of students be X

Percentage of boys=100-60=40%

No of boys= 40% of X

50= 40×X/100

X= 50 × 100/40

X =125 total number of students

Answer:

she'll have 8 plates with 7 spring rolls and 9 plates with 9 cheese cubes.

Step-by-step explanation:

Answer:

yes i can help you

Step-by-step explanation:

Answer:

d

Step-by-step explanation:

Answer:

B because based by what I'm seeing it is the same answer to the other equation. Which is -34.

Answer:

$1050

Step-by-step explanation:

6.25 x 24 = 150

150 x 7 = 1050

Answer: The answer is $1050

Step-by-step explanation: You why? Because 6.25 x 24 = 150 150 x 7 = 1050 so it's $1050

Answer:

Your Answer is below.

Step-by-step explanation:

Okay so, can setup a proportion.

0.72 km = 0.01 L

x km = 1 L

So, solve for x

x = 0.72 km x 1 L / 0.01 L = 72 km

Answer: [tex]3\frac{1}{3}[/tex]

Answer: 6(1+2x)

Step-by-step explanation:

Factor out the six

Answer:

$13.25

Step-by-step explanation:

100% = $53

÷ 4 both sides to get to 25%

25% = $13.25

Answer:

x=31

Step-by-step explanation:

x=180-149

x=31

Answer:

Plus 2 (+2)

Step-by-step explanation:

The rate of change is always a constant change from the given first term to the next one. In this case, you are adding 2 each time:

3 + 2 = 5

5 + 2 = 7

7 + 2 = 9

etc.

~

Change means difference in the state or condition of a thing and here the thing is number. The change made within them must be following some certain rules or patterns.

They can be uniform and here it is uniform for sure. The terms are increasing by 2 or we can say that for getting th next number, we need to add 2 with the previous.

So, the rate of change for the above numbers or number series is +2 or addition of 2[tex].[/tex]

Carry On Learning !

Answer:

There are two patterns to chose two different biscuits; a digestive then a chocolate or a chocolate and then a digestive.

The probability of choosing a digestive then a chocolate is as follows:

7/12 * 5/11 =0.265

The probability of choosing a chocolate then a digestive is as follows:

5/12*7/11 = 0.265

Therefore the combined probability is 0.53 or 53%

Probability of digestive and chocolate

And

Probability of digestive and ginger

And

Probability of ginger and chocolate

Answer:

[tex](x-5)^{2}[/tex]

Step-by-step explanation:

[tex]ax^{2} + bx + c[/tex]

Take the value for b, divide it by 2 and square it to get the value for c.

In this case, b = -10.

- 10 ÷ 2 = -5

-5^2 = 25

So x^2 - 10x +25 is your quadratic equation which is equal to

[tex](x-5)^{2}[/tex]

Answer:

1/3

Step-by-step explanation:

Parallel lines have the same slope.

Therefore, if the slope of line b is 1/3, the slope of line a is also 1/3

Answer:

the answe is 80!

Step-by-step explanation:

It is 80! Hope it helps

Answer:

3-2r + 1 - 13

Step-by-step explanation:

3-2r + 1 - 13

Answers:

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

Work Shown:

3 < 2x+1 < 13

3-1 < 2x+1-1 < 13-1 .... subtract 1 from all sides

2 < 2x < 12

2/2 < 2x/2 < 12/2 ... divide both sides by 2

1 < x < 6

The value of x is between 1 and 6, excluding both endpoints.

Since we exclude both endpoints, the graph will have open holes at 1 and 6 on the number line. The shading is between the open holes. The graph is below.

Converting 1 < x <6 to interval notation leads to (1, 6)

The curved parenthesis in interval notation indicate "exclude the endpoint".

Answer:

Step-by-step explanation:

a) 32.5/40

= 32.5/40 * 100%

= 81.25%

~81%

b) 31.5/40

= 31.5/40 * 100%

= 78.75%

~79%

c) 29.5/35

= 29.5/35 * 100%

= 84.3%

~84%

d) 26/35

26/35 * 100%

= 74.3%

~74%

e) 24/35

24/35 * 100%

= 68.6%

~69%

Answer:

See below ~

Step-by-step explanation:

a) 32.5/40

b) 31.5/40

c) 29.5/35

d) 26/35

e) 24/35

Answer:

6

Step-by-step explanation:

Answer:

1/5

Step-by-step explanation:

(2x+1)(x+6)(x-4)= 2x³+ax²+bx-24

(2x²+x+12x+6)(x-4) = 2x³+ax²+bx-24

2x³+x²+12x²+6x-8x²-4x-48x-24 = 2x³+ax²+bx-24

2x³+x²+12x²+6x-8x²-4x-48x-24- 2x³-ax²+bx-24=0

5x²-46x-ax²+bx-48=0

-ax²+5x²+bx-46x-48=0

Answer:

m = 5

n = 5

Step-by-step explanation:

Note that the ∑ of the interior angles of a triangle = 180°.

A square for one of the angles constitute as 90°.

This means that this is a isosceles triangle.

Note that for isosceles triangles, the sides will follow the rule of 1 , 1 , √2, in which √2 is the hypotenuse.

The hypotenuse is the side opposite of the greatest angle measurement. It is given that the hypotenuse for the given triangle is 5√2. Divide √2 from the given measurement to get the measurements for the legs:

[tex]\frac{5\sqrt{2} }{\sqrt{2} } = 5[/tex]

Again, as it is a isosceles triangle, the two sides will share the same measurement.

m = 5

n = 5

~

Answer:

20

Step-by-step explanation:

[tex] {x}^{2} = {16}^{2} + {12}^{2} [/tex]

[tex] { x}^{2} = 256 + 144[/tex]

[tex] {x}^{2} = 400[/tex]

[tex]x = 20[/tex]

Answer:

Hey! I have two answers for you. If x is next to the denominator of 7 then its  −1/35 but if x is next to the whole fraction then its just -35

Step-by-step explanation:

Answer:

1) If the measure of an angle is 30°, then it is a right angle

2) The hypothesis = The measure of an angle is 30°

The conclusion = It is a right angle

3) The statement is false

Step-by-step explanation:

1) The information given is that an angle is a right angle if it measures 30°

The statement in the if-then form can be presented as follows;

If the measure of an angle is 30°, then it is a right angle

2) The hypothesis = The measure of an angle is 30°

The conclusion = It is a right angle

3) Given that a right angle measures 90°, the compound statement; "If the measure of an angle is 30°, then it is a right angle" is false.

Step-by-step explanation:

Standard form is when the degree is in decreasing order

Second polynomial has the first term with highest exponent and second term with second highest exponent and so on

Answer:

she should multiply the cost of the meal by 1.17

Step-by-step explanation:

because 1 is the cost of the meal and 0.17 is the tip percent (hope this helps)

Answer:

$0.65

Step-by-step explanation:

$0.40 + $0.25 = $0.65

Answer:

0.40p+0.25a=cost

Step-by-step explanation:

Considering that every apple costs 25 cents and every pear costs 40 cents, you would multiply how many apples and or pears there are by how much they are worth and then add it to get the total cost. Due to there not being a specific total or how many apples and/or pears there are, it currently can't be solved.

Answer:

2.5%

Step-by-step explanation:

Solving

Step 1: Set up an equation.

Step 2: Simplify both sides.

Step 3: Divide both sides by 0.2

Therefore, 0.5 is 2.5% of 20.

Have a lovely rest of your day/night, and good luck with your assignments! ♡

X=?

0.5

total from 20

what percentage is O.5 of 20

therefore X/100*20 = 2.5