how to solve 4+y=9.5

Answer:

Value of x = 10

Minimum cost (C) = 45

Step-by-step explanation:

Given:

Equation:

120 - 5x + 0.25x²

Find:

Value of x

Minimum cost

Computation:

0.25x² - 5x + 120

x = -[b/2a]

x = -[(-5)/2(0.25)]

x = 10

Value of x = 10

Minimum cost (C) = 120 - 5x + 0.25x²

Minimum cost (C) = 120 - 5(10) + 0.25(10)²

Minimum cost (C) = 45

Answer:

Step 1 should have been 27(6 + 30).

Step-by-step explanation:

Given that:

The evaluation of the expression 27(36) by using the distributive property as portrayed by Liz is as follows:

27 (36)

Step 1 = 27 (3+ 12)

Step 2 = 27(3) + 27(12)

step 3  = 81 + 324

Step 4 = 405

What was the first error that Liz made?

From the above first step, we will see that :

27(3+12) was given, which is wrong.

the right step that is supposed to be there is:

27(6 + 30).

so the calculation will be:

Step 1 = 27(6+30)

Step 2 = 27(6) + 27(30)

Step 3 = 162 + 810

Step 4 = 972

Answer:

integers

Step-by-step explanation:

because integers are always in decimal form

Answer:

To write 0,0045 in scientific notation, we will have to move the decimal point three point to right, which literally means multiplying by 1000=103 . Hence in scientific notation 0.0045=4.5×10−3 (note that as we have moved decimal three point to right we are multiplying by 10−3

Step-by-step explanation:

Answer:

Hey there!

The error in this congruence statement is that we don't know if these are actually congruent.

Saying that the triangles "look the same" simply isn't enough. We do know that all three angles are the same, but the AAA (Angle Angle Angle) postulate only works for similar triangles.

Additionally, even if they were congruent, it would still be triangle ABC ≅ triangle FED, not triangle DEF.

Let me know if this helps :)

Answer:

The wrote the order wrong so they are not congruent until you fix their mistake

Step-by-step explanation:

ABC~ FDE

Answer A tree was 17 feet tall when it was planted it grew eight times that height in 15 years how much taller is the tree than when it was planted

Step-by-step explanation:

Answer you will multiply 17 * 8 which would give you 136. Next you was subtract 17 from 136 giving you a total of 119

Step-by-step explanation:

Answer: 15%

Step-by-step explanation:

From the question, we are informed that Mrs Anderson weighed 160 pounds earlier and two months later, she had dropped to 136 pounds. To. Calculate the percent of decrease in her weight goes thus:

We've to find her decrease in weight first. This will be:

= 160 pounds - 136 pounds

= 24 pounds

Percentage decrease will now be:

= Change in weight/Original weight × 100

= 24/160 × 100

= 0.15 × 100

= 15%

The percent of decrease in her weight is 15%.

Answer:

I thought it was the last one but I mean if it was wrong sorry

Greetings from Brasil....

The rate of change between 2 points is obtained through the expression:

a) (0, 2) and (4, 10) so, X₁ = 0; X₂ = 4; Y₁ = 2 and Y₂ = 10

m = ΔY/ΔX

m = (Y₂ - Y₁)/(X₂ - X₁)

m = (10 - 2)/(4 - 0)

m = 8/4 = 2

b) (0,5) and (2,8) so, X₁ = 0; X₂ = 2; Y₁ = 5 and Y₂ = 8

m = ΔY/ΔX

m = (Y₂ - Y₁)/(X₂ - X₁)

m = (8 - 5)/(2 - 0)

m = 3/2

c) (0,0) and (3,-4) so, X₁ = 0; X₂ = 3; Y₁ = 0 and Y₂ = - 4

m = ΔY/ΔX

m = (Y₂ - Y₁)/(X₂ - X₁)

m = (- 4 - 0)/(3 - 0)

m = -4/3

d) (0,6) and (12,9)​ so, X₁ = 0; X₂ = 12; Y₁ = 6 and Y₂ = 9

m = ΔY/ΔX

m = (Y₂ - Y₁)/(X₂ - X₁)

m = (9 - 6)/(12 - 0)

m = 3/12 ⇔ m = 1/4

Among all the values above, the largest is 2, so points

(0; 2) and (4; 10)

Answer:d/6+f/3=4 solve for d

step by step and accurate answer plz​

Step-by-step explanation:d/6+f/3=4 solve for d

step by step and accurate answer plz​

Answer:

11

Step-by-step explanation:

4(s-3)-4=4+8(3)

=4+24

=28

4s-12-4=28

4s-16=28

4s=28+16

4s=44

s=44/4

s=11

Answer:

S 1,-1     R 1,-3   :)

Step-by-step explanation:

Answer:

It dropped 8 degrees so the answer must be -8

Step-by-step explanation:

yes you are right, density formula is :

density = mass ÷ vol

Answer:

Option (4)

Step-by-step explanation:

Domain:

Domain of function is defined by the x-values (Input values) on the graph.

Range:

Range of a function is defined by the y-values (output values) on the graph.

From the graph attached,

x-values are starting from (-3) to infinity.

Therefore, domain of the function will be all real numbers greater than equal to (-3).

Option (4) will be the answer.

Answer:

47

Step-by-step explanation:

46, 24,87, 64, 39, 50, 37, 48

First put the numbers in order from smallest to largest

24,  37,  39,46, 48,50,64,87

Then we notice that there are 8 numbers.  The median is the middle

24,  37,  39,46     , 48,50,64,87

The middle is between 46 and 48

Take the average of these numbers

(46+48)/2 = 94/2 = 47

The median is 47

Answer:

49

Step-by-step explanation:

Fairly simple, line up the numbers in order from lowest to highest. Then find the middle two terms. Since we have 8 terms, we take the two in the center, 50 and 48 and add them together, then divide by two to get your median.

Answer:

Step-by-step explanation:

We are asked for the number of hours spent at the studio, so it is reasonable to let the variable x stand for the number of hours.

The total cost is ...

  vase cost + hourly cost = total cost

where hourly cost = (# of hours)(cost per hour)

  10 + 8x = 46

  8x = 36 . . . . . . subtract 10

  x = 4.5 . . . . . . . divide by 8

4.5 hours were spent at the studio.

Answer:

where is the figure????

nap......where is the figure?

Answer:

26/7

Step-by-step explanation:

[tex]2\frac{3}{5} * 1\frac{3}{7}[/tex]=

[tex]\frac{13}{5}* \frac{10}{3} =[/tex]

[tex]\frac{130}{35}[/tex]=

simplify= 26/7

Answer:

Step-by-step explanation:

Simplify the numerator first

Since they have the same square root that's root 5 we can subtract them directly

That's

So we have

Reduce the expression with √5

We have the final answer as

Hope this helps you

Answer:

N=2a2b

divide by 2a squared to get

b=N/2a2

Answer: His paycheck was $72.

Step-by-step explanation:

Let x = paycheck amount.

Given,  Amount spent on video games = [tex]\dfrac x2[/tex]

Amount he has left of it = [tex]x-\dfrac x 2=\dfrac x 2[/tex]

Amount received = $20

Total amount amount he has left = [tex]\dfrac x 2 +20[/tex]

According to the question,

[tex]\dfrac x 2 +20 = 56\\\\\Rightarrow\ \dfrac x 2= 36\\\\\Rightarrow\ x= 2\times 36=72[/tex]

∴ His paycheck was $72.

Answer:

Hey there!

Density = Mass/Volume

Mass= 6g

Volume=24 mL, which is 24 cm^3

Density= 6g/24 cm^3

Density=0.25 g/cm^3

Let me know if this helps :)

Answer:

0.25g/ml

Step-by-step explanation:

Mass=6g

Volume=24ml

Density=Mass/Volume

=6/24=1/4=0.25g/ml

Answer:

Hey there!!

Your required answer is option C.

The reason is;

Therefore, the possible answer is option D.

Hope it helps...

Step-by-step explanation:

f(x) = 25 / (10x -20)

When 10x - 20 = 0, f(x) is undefined. Therefore x = 2 is not in the domain for f(x) to be a function.

Answer = 2.

Answer:

4800 ml

Step-by-step explanation:

If you have any questions about the way I solved it, don't hesitate to ask :)

Answer:

4.8 L

Step-by-step explanation:

6 hours = 6*60*60 seconds = 21600 seconds

10 mL - 45 seconds

x mL - 21600 seconds

x = (21600*10)/45=4800 mL

4800 mL = 4.8 L

Step-by-step explanation:

6 answer

[tex] \frac{4}{15} \div \frac{2}{5} [/tex]

[tex] \frac{4}{15} \times \frac{5}{2} [/tex]

[tex] \frac{8}{75} = 0.10667[/tex]

7 answer

[tex] \frac{9}{10} \div \frac{1}{6 } [/tex]

[tex] \frac{27}{5 } = 5.4[/tex]

[tex] \frac{9}{10} \times 6[/tex]

8 answer

[tex] \frac{20}{8} \div \frac{1}{15} [/tex]

[tex] \frac{20}{8} \times 15[/tex]

[tex] \frac{1}{6} = 0.1667[/tex]

9 answer

[tex] \frac{6}{7} \div \frac{9}{14} [/tex]

[tex] \frac{6}{7} \times \frac{14}{9} [/tex]

[tex] \frac{4}{3} = 1.33[/tex]

5y^2×3/4

calculate:

15/4y^2

alternate form:

3.75y²

Answer:

(2,1)

Step-by-step explanation:

Answer:

(2,1)

Step-by-step explanation: