I think of a number, multiply it by three, and add four. I get twenty two.
a) Using the statement above, form an equation.
Use the letter 'x' for the unknown number.
3x+4=22
b)
Solve the equation.

Answer:

The half of 6 is 3 the half of 3 is 1.5 the half of 1.5 is 0.75

Answer:

v=9

Step-by-step explanation:

-18 = 7v + 9 - 10v

combine like terms

-18 = -3v + 9

-9             -9

-27 = -3v

divide both sides by -3

9 = v

or

v = 9

Hope this helps!!!

Answer:

11/12

Step-by-step explanation:

9/11 x 11/12 = (3 x 3)/11 x 11/(3 x 4) = 3/4

Answer:

It's 6 to the power of 7

Step-by-step explanation:

60,000,000

There are 7 zeros

Answer:

85%

Step-by-step explanation:

Method 1: Set up a proportion

Set up an equation of the form:

part

whole

=

whole

part

​

=

percent

100

100

percent

​

Assign the variable

x

x to the unknown value:

x

=

x=

percent

percent

The question asks what

percent

percent of all the students is 323

Substitute the known values with the numbers given in the problem, and the unknown value with

x

x:

323

380

=

380

323

​

=

x

100

100

x

​

Solve for

x

x:

100

⋅

323

=

100⋅323=

380

⋅

x

380⋅x

Cross multiply

32300

380

=

380

32300

​

=

380

x

380

380

380x

​

Divide both sides by 20

85

%

=

85%=

x

x

Simplify

Method 2: Convert to decimal and multiply

Find

323

out of

380

as a decimal:

Find 323 out of 380 as a decimal:

323

380

=

380

323

​

=

0.85

0.85

Convert decimal to percent:

Convert decimal to percent:

0.85

×

100

=

0.85×100=

85

%

85%

Move decimal 2 places to the right

number

percent

323

85%

380

100%

Complete question is;

Mika taught her sister the steps for dividing a decimal by a decimal. Which instructions are correct?

A) 1. Multiply the divisor by a multiple of 10 to create an integer divisor. 2. Multiply the dividend by the same multiple of 10 as step 1. 3. Divide, and apply the rules for dividing signed numbers.

B) 1. Multiply the dividend by a multiple of 10 to create an integer. 2. Multiply the divisor by the same multiple of 10 as step 1. 3. Divide, and apply the rules for dividing signed numbers.

C) 1. Divide the divisor by a multiple of 10 to create an integer divisor. 2. Divide the dividend by the same multiple of 10 as step 1. 3. Divide, and apply the rules for dividing signed numbers.

D) 1. Divide the dividend by a multiple of 10 to create an integer. 2. Divide the divisor by the same multiple of 10 as step 1. 3. Divide, and apply the rules for dividing signed numbers.

Answer:

A) 1. Multiply the divisor by a multiple of 10 to create an integer divisor. 2. Multiply the dividend by the same multiple of 10 as step 1. 3. Divide, and apply the rules for dividing signed numbers.

Step-by-step explanation:

In Mathematics, divisor is the number by which the dividend should be divided.

Now, if we want to divide a decimal by another decimal, to make things easy we have to transform both numbers from decimals to integer form to make direct division easier.

The first step will be to multiply the divisor by a multiple of 10. The multiple of 10 will depend on the number of decimal places.

The second step is to do the same to the dividend.

The last step would be to divide the integers by applying rules of division of numbers.

The correct option is Option A:

Answer:

This be soooo hard ;w;

Step-by-step explanation:

.w.

Answer:

-2 ≤x ≤10

Step-by-step explanation:

the domain refers to the x

the x is in between -2 and 10

Answer:

x = 24

y = 10

z = 17

Explanation:

It's long to explain, so heres a picture of how solved each. hope this helps!! :)

Answer:

$12.23

Step-by-step explanation:

75/100 = 0.75

0.75 x 6.99 = 5.2425

6.99 + 5.2425 = 12.2325

Answer: x ≥0,y ≥3000

Step-by-step explanation:

that’s what i put and got it right so ‍♀️

Answer:

m = 7

Step-by-step explanation:

Use the slope formula.

[tex]m=\frac{rise}{run}=\frac{y_2-y_1}{x_2-x_1}=\frac{5+2}{4-3}=\frac{7}{1}=\boxed{7}[/tex]

The slope is 7.

Hope this helps.

Answer:

m=7

Step-by-step explanation:

Slope is the change in Y over the change in X

The change in Y is 7

The change in X is 1

7/1 = 7

Answer:

12 days.

Step-by-step explanation:

She would have enough food to feed her pet ferret for 12 days, at a cup a day, before she would need to buy more.

Hope this helps!, If so please mark the brainliest and peace and love!!!!

Answer:

d 4x^2 + 24x - 8

Step-by-step explanation:

Perimeter of the rectangle = 2x² - 5 + 12x + 1 + 2x² - 5 + 12x + 1

                                            = (2x²+ 2x²) + (12x+ 12x) + (- 5 + 1 - 5 + 1)

                                            = 4x² + 24x - 8

Step-by-step explanation:

65+5y=82

5y=82-65

5y=17

y=17/5=3.4

3x+23=54

3x=54-23

3x=31

x=31/3=10.3

5z+43=110

5z=110-43

5z=67

z=67/5=13.4

3x+5y+5z3.

3(3.4)+5(10.3)+5(13.4)

10.2+51.5+67

128.7

Answer:

Long wings: 0

Short wings: 100

Step-by-step explanation:

Genotype of the flies: ww

The cross will yield the genotype ww and the flies will express the recessive phenotype which is short wings.

The probability for long wings will be 0 as there is no dominant allele present. The probability for short wings will be 100 as all the flies will have short wings.

Hope that helps.

Answer:

9 girls

Step-by-step explanation:

total girls tried out = 45

did not make the team

= 20% of the girls

= 20/100 × 45

= 9 girls

Andrew types faster than Jade

40/7 = 5.7 words per minute (Jade)

35/6 = 5.8 words per minute (Andrew)

May I have brainliest please? :)

Answer:

y = -4/5 x - 5

Step-by-step explanation:

Answer:

60 minutes

Step-by-step explanation:

Let the number of minutes be represented as x

For Plan A

Plan A charges $35 plus $0.25 per minute for calls.

$35 + $0.25 × x

35 + 0.25x

For Plan B

Plan B charges $20 plus $0.50 per minute for calls.

$20 + $0.50 × x

20 + 0.50x

For what number of minutes do both plans cost the same amount?

This is calculated by equating Plan A to Plan B

Plan A = Plan B

35 + 0.25x = 20 + 0.50x

Collect like terms

35 - 20 = 0.50x - 0.25x

15 = 0.25x

x = 15/0.25

x = 60 minutes.

Hence, the number of minutes that both plans cost the same amount is 60 minutes

Answer:

no solution

Step-by-step explanation:

Given

3(x - 3) = 3x , that is

3x - 9 = 3x ( add 9 to both sides )

3x = 3x + 9 ( subtract 3x from both sides )

0 = 9 ← not possible

This indicates the equation has no solution

Answer:

5/7 x = 1/7

x = (1/7) / (5/7)

x = (1/7) * (7/5)

x = 7 / 35

x = 1 / 5 or .2

Step-by-step explanation:

Answer:

It would have to be D.

Step-by-step explanation:

None of the tables display an exponential growth of population.

Answer:

x=1,y=3

correct answer is (1,3)

Step-by-step explanation:

We can quickly eliminate y by subtracting one equation from the other

(-2x+y=1)-(-4x+y=-1)

2x=2

x=1

plug x=1 into equation 1

-2(1)+y=1

y=1+2=3

Answer:

h= −5/6y (negative 5 y over 6)

Step-by-step explanation:

5y+(2)(5)h=4h

Step 1: Add -4h to both sides.

10h+5y+−4h=4h+−4h

6h+5y=0

Step 2: Add -5y to both sides.

6h+5y+−5y=0+−5y

6h=−5y

Step 3: Divide both sides by 6.

6h/6=−5y/6

h=−5/6y

Answer:

h = - 5y/ 6

Step-by-step explanation:

5y + 2 * 5h = 4h

Using BODMAS

Perform multiplication first

5y + 10h = 4h

Collect like terms

5y = 4h - 10h

5y = - 6h

Divide both sides by - 6

5y / - 6 = - 6h / - 6

h = - 5y/ 6

Answer:

[tex]w=6.6[/tex]

[tex]18.6:24.8::3:4[/tex]

Step-by-step explanation:

[tex]As\ we\ know\ that,\\(w+12):(3w+5)::3:4\\By\ the\ proportion\ method\ of\ multiplying\ the\ means\ and\ the\ extremes,\\we\ get,\\(w+12)*4=3*(3w+5)\\4w+48=9w+15\\48-15=9w-4w\\33=5w\\[/tex]

[tex]w=33/5\\w=6.6[/tex]

[tex]By\ substituting\ the\ value\ of\ w\ in\ the\ proportion. you\ get:\\(6.6+12)/(3*6.6+5)=3/4\\18.6/24.8=3/4\\18.6:24.8::3:4[/tex]