i don't know how to do math lol​

Answer:

a. 3 cm

b. 6 km

Step-by-step explanation:

to be completely honest, I just shoot my answer based on the pattern.

if you notice that when the scale is 4 cm, the actual distance is 5 km. When the distance is 4 km, the scale should probably be 3 cm. It's the same with the 5 cm scale, then the distance should be 6 km

Step-by-step explanation:

Use ratios to solve it

a)

x = 4*4/5 = 3.2 cm

b)

x = 5*5/4 = 6.25 km

Answer:

1

Step-by-step explanation:

The tenths place is the first place to the right of the decimal.

Ex:

1.39

3 is in the tenths place

Your ex:

20,407.1859

1 is in the tenths place

Answer:

First is.

Step-by-step explanation:

20 is in the tenths place,, this is like 3rd grade math

Answer:

1.21

2.42

3.249.67

4.155.25

5.63.25

6.86

7.80.83

8.47.125

9.153

10.438

Step-by-step explanation:

hope helful pls follow and give brainliest tq

Answer:

21

42

249 2/3

77 5/8

63 1/2

86

80 5/6

47 1/8

153

43 8/9

Step-by-step explanation:

those are quotients not sums

Answer:

-12

Step-by-step explanation:

F(T)=2(1×+1)

2(1×+1)= x2 + 2, and since we were trying to find what f is, we know know f=2 because of the equation 2(1×+1), so, 2(-6)= -12

Answer:

You want the average of three scores to be at least 80:

(88 + 78 + x)/3 ≥ 80

88 + 78 + x ≥ 80(3)

166 + x ≥ 240

x ≥ 74

You must make at least 74 on the 3rd test to maintain an average of at least 80%

Step-by-step explanation:

Answer:

9 seats in each row

Step-by-step explanation:

576/64

Answer: in each row there are 9 seats

Step-by-step explanation:

Answer:

34.50

Step-by-step explanation:

69/2=34.50

If 7 seeds are planted, the probability that exactly 3 do grow is;

P(X = 3) = 0.0002

This is a binomial probability distribution problem where;

P(X = x) = ⁿCₓ × pˣ × q⁽ⁿ ⁻ ˣ⁾

We are given;

p = 95% = 0.95

q = 1 - p

q = 1 - 0.95

q = 0.05

Thus If 7 seeds are planted, the probability that exactly 3 do grow is;

P(X = 3) = ⁷C₃ × 0.95³ × 0.05⁽⁷ ⁻ ³⁾

P(X = 3) = 35 × 0.857375 × 0.00000625

P(X = 3) = 0.000187

To four decimal places gives;

P(X = 3) = 0.0002

Read more at; https://brainly.com/question/19261596

Answer:

3)

Step-by-step explanation:

The x side of the table can't have the same numbers, while the f(x) side can.

:)

also f(x) is the same as y on a table therefore has the same rule.

Answer:

The coefficient of -4√x is -4; that of y is 1; and that of -5x is -5.

Step-by-step explanation:

The terms include -4√x, y, -5x.

The coefficient of -4√x is -4; that of y is 1; and that of -5x is -5.

Answer:

true

Step-by-step explanation:

true the definition is right

Answer:

About 7 minutes

Step-by-step explanation:

3 minutes + 4 minutes= 7 minutes memory used for two songs

Answer:

 =  1.6

Unless you meant to clarify what in the equation you needed, but that is the answer to it.

Answer: Y= 5

Step-by-step explanation:

2(-1)+y=3

2 x -1=-2

-2+y=3

+2     +2

y=5

Answer:

y = 5

multiply:

2 (-1) + y = 3  →  -2 + y = 3

rearrange:

y - 2 = 3

add to both sides:

y - 2 + 2 = 3 + 2

simplify:

y = 5

I hope this helps! Sorry if it's the wrong answer! (′д｀σ)σ

Answer:

12°F

Step-by-step explanation:

Temperature dropped

2°F

every

1

hour

After

6

hours

6

hours

×

2°F drop

1

hour

=

12°F drop

There is a drop in

12°F

According to the rule, the table is:

x|y

2|3

3|5

4|7

The translation of the rule to a math expression is:

[tex]y = 2x - 1[/tex]

Then, for x = 2:

[tex]y = 2(2) - 1 = 4 - 1 = 3[/tex]

For x = 3:

[tex]y = 2(3) - 1 = 6 - 1 = 5[/tex]

For x = 4:

[tex]y = 2(4) - 1 = 8 - 1 = 7[/tex]

Thus, the table is:

x|y

2|3

3|5

4|7

A similar problem is given at https://brainly.com/question/13094243

Answer:

Stacy has no money in her bank account. She buys 4 vases which each cost $20. At the end of the transaction, Stacy's balance is -80 dollars.

Step-by-step explanation:

Both are equal

0.5 and 2/4 = ½ = 0.5

Answer:

they are both the same

.5

and 2/4 as a decimal is .5

Step-by-step explanation:

Answer:

j*14 + 8

Step-by-step explanation:

Answer:

At the end of the 1st year you have 21,000-0.14(21000)

= (1-0.14)21000 = 0.86(21,000)

So after three years you have 21000(0.86)(0.86)(0.86)

= 21000(0.86)^3

Answer:

3360

Step-by-step explanation:

Find 14% of 21,000 then multiply by six which gives you 17,640. Then you subtract 21,000-17640. that is your answer.

Answer:

9): 64.7

10): 39$

Step-by-step explanation:

Answer:

64.7% and $39

Step-by-step explanation:

Question 9:

This means that the baseball team won 22/34 of their games through their entire season. In order to find the percentages of game they won, you divide 22 by 34, which comes out to 0.64705..., which becomes 64.705%. Rounding this to the nearest tenth, this percentage becomes 64.7%. Therefore, the percentage of games their baseball team is 64.7%.

Question 10:

We can represent this problem as the proportion:

[tex]\frac{27}{69.2} =\frac{x}{100}[/tex]

with x being the original price of the slacks.

We cross multiply to solve this equation. 27 times 100 is 2700. Next, we divide 2700 by 69.2, which comes out to 39.017341. Rounding this to the nearest whole number, this value comes out to 39. Therefore, the original price of these slacks is $39.

Answer:

your answer is going to be 94

Step-by-step explanation:

1×5=5

5+89=94

Answer: 1*5+89 = 94

               The answer is 94

Answer:

y=6

Step-by-step explanation:

y+6 3

----- = ----

8 2

2(y+6)=8(3)

2y+12=24

2y=24-12

2y = 12

---- ----

2 2

therefore y=6

Answer:

it will be 6 im 100%

Step-by-step explanation:

y=6

Answer:  1000001010 base 2

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

Explanation:

There are two methods to solving this problem.

One method is to involve having a list of the powers of 2

And so on.

In that list should be 2^9 = 512. So 512 is a power of 2. It is the largest such power that is just under 522. Subtracting it off gets us

522-512 = 10

So that explains why the 2^9 slot in the answer is a '1'. This is the first '1' mentioned in the answer shown above. Then we have a string of '0's until we reach 1010 at the end. That long string of 0s indicate that we don't have any of the following powers: 2^8, 2^7, 2^6, 2^5, 2^4

It's when we get to 2^3 is when we finally have a power of 2 to add on.

Then note how 10-2^3 = 10-8 = 2

So the last term we need to add on is 2^1 = 2. Note the gap from 2^3 to 2^1 because of the first 0 in 1010

So that's how we end up with 1000001010 as our final answer.

Answer:

A = 24

B = 8

C = 6

Step-by-step explanation:

4:3 from B:C

8:6

8 games won by B and 6 games won by C.

3:1 from A:B

24:8

24 by A and 8 by B

Answer: 1 4/21

Step-by-step explanation:

6/7+1/3= 25/21= 1 4/21

Step-by-step explanation:

[tex]\frac{6}{7}[/tex] + [tex]\frac{1}{3}[/tex] = [tex]\frac{25}{21}[/tex]

Simplify

[tex]\frac{25}{21}[/tex] = 1 [tex]\frac{4}{21}[/tex]

25 ÷ 21 = 1 remainder 4

Hope it helps. =D

Answer:

answer is b

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

When you are subtracting a negative, it is the same as just adding a positive.

[tex]-9\frac{2}{7} + 10\frac{3}{7}[/tex]

We can rearrange the problem to read:

[tex]10\frac{3}{7} -9\frac{2}{7}[/tex]

Now, we can subtract the numbers and fractions separately.

[tex]10+\frac{3}{7} -(9+\frac{2}{7})[/tex]

[tex](10-9)+(\frac{3}{7}-\frac{2}{7} )=1+\frac{1}{7}=1\frac{1}{7}[/tex]

This is B

Step-by-step explanation:

f(5)=(5+6)(5-3)/(5-2)

=11(2)/3

=22/3

=7.33