Plz help I need help

Plz Help I Need Help

Answers

Answer 1

Answer:

x = 6

Step-by-step explanation:

This can be written as a ratio

7 : 2

21 : x

If you times one side by 3, you have to multiply the other side by three too:

2 × 3 = 6

∴ x = 6 when y = 21


Related Questions

in a set of 5 numbers the average of two is 12 the average of the other 3 is 7 what is the average of all five numbers. (fraction or whole number)​

Answers

Answer:

The average of all 5 numbers is  9

Step-by-step explanation:

Two of the numbers average 12. That means that their total is 2*12 = 24

Three of the other numbers average 7. That means that their total is 7*3 = 21

The total score for the 5 numbers is 24 + 21 = 45

The average for all 5 numbers is 45/5 = 9

Multiply 3hrs 30mins by 4

Answers

Answer:

14 hours

Step-by-step explanation:

3.30 x 4 = 14 hours

It took 35 seconds for 5 songs to download to Rebecca’s computer. The next day, it took 42 seconds for 6 songs to download. Write an equation in point-slope form to represent the time y it took to download x songs.

NEEDS TO BE STEP BY STEP

Answers

The equation in point-slope form to represent the time y it took to download x songs is; (y - 35) = 7(x - 5)

Since it took 35 seconds for 5 songs to download

and it took 42 seconds for 6 songs to download

In essence, we can represent the information as;

(5, 35) and (6,42)

To find the slope of the equation; we have;

Slope, m = (42-35)/(6-5)

m = 7

In essence, the equation in point-slope form to represent the time y it took to download x songs is;

(y - 35) = 7(x - 5)

Read more:

https://brainly.com/question/6497976

help please i will give brainliest ^^;;

Answers

Answer:

The slope for number 4 is 5/-4 and for number 6 is 4/1

Step-by-step explanation:

5/-4: slope is rise over run so you have to go up (positive) 5 and you have to go to the left (negative) so its 5/-4

4/1: again it's rise over run so you have to go up (positive)  4 and right one (positive)

Answer:

hello

are you army

who is your bias

What is the slope between these two points (-2, 7) and (4, 6)?(

Answers

[tex] \frac{6 - 7}{4 - ( - 2)} = \frac{ - 1}{6} = - \frac{1}{6} [/tex]

The slope is -1/6

Y2-Y1/X2-X1

6-7/4-(-2)

-1/6

= -1/6

Which of the following fractions is equivalent to 4/20? 2/6 8/16 1/2 3/6 5/10 7/11

Answers

Answer:

1/2

Step-by-step explanation:

In a distribution with a mean of 100 and a standard deviation of 15, the probability that a score
will be 115 or higher is _____ Please show all your work.

Answers

Using the Zscore principle, the probability of obtaining a score which will be 115 or higher is 0.15866

Given the Parameters :

Mean, μ = 100Standard deviation, σ = 15 Score, X ≥ 115

Zscore = (X - μ) ÷ σ

Zscore = (115 - 100) ÷ 15

Zscore = 1

Using a normal distribution probability ;

P(Z ≥ 1) = 1 - P(Z ≤ 1)

P(Z ≥ 1) = 1 - 0.84134

P(Z ≥ 1) = 0.15866

Therefore, the probability is 0.15866

Learn more :https://brainly.com/question/8165716

h e l p m e please its 20 points

Answers

Answer:

its just a rotation. its as simple as rotating it back to its origonal form and matching up the corners

Step-by-step explanation:

Someone help plz tyyyy!

Answers

Answer:

When y=7,9 the answer is yes when it = -10,-8 the answer is no.

Step-by-step explanation:

Simple substitution gets us the resulting values. for y=7 we get [tex]15\geq 15[/tex] which is true. For y=9 we get [tex]19\geq 15[/tex] which is also true. For the other values we get a negative number which is not a solution.

If the rate of the boat in still water is 20 mph, and the rate of the current is x mph, what is the rate of the boat going upstream

Answers

9514 1404 393

Answer:

  20 -x

Step-by-step explanation:

Relative to the shore, the speed of the current subtracts from the speed of the boat. The net upstream speed is ...

  20 -x . . . . miles per hour

Q: What is the product of (a-5) and (a+3)? ​

Answers

[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]

Let's solve for a :

[tex](a - 5) \times (a + 3)[/tex]

[tex](a \times a) + (a \times 3) + ( - 5 \times a) + ( - 5 \times 3)[/tex]

[tex] {a}^{2} + 3a - 5a - 15[/tex]
It would be a²+3a-5a-15

If f(x)=3x-2 and g(x)=2x+1, find (f+g)(x)

A. 5x - 3
B. x - 3
C. x - 1
D. 5x - 1

brainliest for help!!

Answers

Answer:

D. 5x - 1

Step-by-step explanation:

To solve this, you need to add together f(x) and g(x)

f(x) + g(x) = (3x - 2) + (2x + 1)

3x + 2x = 5x

-2 + 1 = -1

The answer is 5x - 1

Steffan cycled 10km in 45 minutes. He rested for
20 minutes then cycled a further 8 km in 40 minutes.
Work out his average speed for the whole journey.M
Give your answer correct to one decimal place.


Math

Answers

Answer:  If you measure out a 10k course and then time how long it takes you to ride it, that will tell you which speed range to use and what time to input. If you weigh 185 pounds and fall into the 12 to 13 mph range, it will take you about 30 minutes to pedal 10k — which means that according to the ACE estimates, you will burn about 335 calories.

Step-by-step explanation:

Hope this helps!

Answer:

0.2km/min or 12.7km/hour

Step-by-step explanation:

speed = distance ÷ time

speed = (10km + 8km) ÷ (45 mins + 40 mins)

= 18 ÷ 85

= 0.21176...km/min ≈ 0.2km/min

To convert 0.21176...km/min into km/hr, you multiply by 60

0.21176...km/min × 60 = 12.70588...km/hr ≈ 12.7km/hr

it’s for i ready. please help

Answers

Answer:

6, 12, 18, 24, 30, 36, 42, 48, 54 (the bolded numbers go in the box)

Step-by-step explanation:

1. To find the multiples of 6 between 6 and 54, we have to multiply 6 by numbers from 1 to 9.

6 × 1 = 66 × 2 = 126 × 3 = 186 × 4 = 246 × 5 = 30 6 × 6 = 36 6 × 7 = 426 × 8 = 48 6 × 9 = 54

Therefore, the multiples of 6 between 6 and 54 are 6, 12, 18, 24, 30, 36, 42, 48, 54. (again, the bolded numbers go in the boxes)

Naomi is still not sure how many boxes of each type of candy to order. Her dad explains that he needs to do a little more mathematics before she can determine the best candy order. He creates a table to help her determine the solution.

He asks her to calculate how much money the band would make if she ordered 500 boxes of
each type of candy. He also asks her to calculate the profit on an order of 300 boxes of milk
chocolate and 500 boxes of dark chocolate. Determine both answers and show your work.

Answers

Answer:

how much does each box cost?

Step-by-step explanation:

‼️PLEASE HELP I HAVE NO IDEA ON HOW TO DO THIS‼️‼️

Solve each system by elimination. Please show the work.

1. 3x+3y+6z=9; 2x+y+3z=7; x+2y-z=-10

2. 3x-y+z=3; x+y+2z=4; x+2y+z=4

3. x-2y+3z=12; 2x-y-2z=5; 2x+2y-z=4

Answers

Answer:

under what topic is this?

I NEED A 100% ACCURATE ANSWER FOR THIS ASAP NO LINKS !!!
Solve for x: 7x = 4x + 27
x =

Answers

Answer:

x = 9

Step-by-step explanation:

Step 1: Subtract 4x from both sides.

[tex]7x - 4x = 4x + 27 - 4x[/tex] [tex]3x = 27[/tex]

Step 2: Divide both sides by 3.

[tex]\frac{3x}{3} =\frac{27}{3}[/tex] [tex]x = 9[/tex]

Step 3: Check if solution is correct.

[tex]7(9) = 4(9) + 27[/tex] [tex]63 = 36 + 27[/tex] [tex]63 = 63[/tex]

Therefore, x = 9.

7x = 4x +27
3x = 27
x = 9

The hourly rate for a lecturer is £17.50. She works 35 hours a week and 8 hours overtime at time-and-a-half. What is her total pay for the week?​

Answers

Her total pay is 822.50

See the question



Help


I’ll give a brainliest



1 , 2 , 3 , or 4 ?

Answers

Answer:

the answer is 3 I think if not than 2

Solve the for variable


c+7=13


c = ?

Answers

Answer:

c=6

Step-by-step explanation:

c+7=13

-7        -7

c=13-7

c=6

Pls answer the question in the photo

Answers

Answer:

correct answer to the problem is x= -9

Joe answered correctly.

Answer: nick

Step-by-step explanation: subtract 6 from both sides to get 0 on one side and then divide both sides by 2 to get x on its own

I have more questions to due after this

Answers

Answer:

a reflection over the line y=-x

Step-by-step explanation:

Compare the decimal numbers 0.218 and 0.128.

0.128 = 0.218
0.218 < 0.128
0.128 > 0.218
0.218 > 0.128
Easy Help 5th grade math will mark as brainlist

Answers

Answer

0.128>0.218 ,0.218>0.128, 0.128<0.218, 0.218>0.128

Step-by-step explanation:

0.218 is bigger because its 0.218 is a bigger number than 0.128

$5.95-$2.29 explained step by step

Answers

Answer:

$3.66

Step-by-step explanation:

5.00-2.00 = 3.00

0.95-0.29 = 0.66

3.00 + 0.66 = $3.66 which is the answer

Ok,so:

We don’t need the $ sign now.

So.

1. 5.95 -2.29 which is 3.66!

5 - 2 is 3, and 0.95 - 0.29 is 0.66.

So now add :3 + 0.66 is 3.66

So $3.66!

Hope this helped!

Factor.

3x(y−4)−2(y−4)



Enter your answer in the box.

Answers

Answer: Use the distributive property to multiply 3 by y−4.

3y−12−2(y−4)

Use the distributive property to multiply −2 by y−4.

3y−12−2y+8

Combine 3y and −2y to get y.

y−12+8

Add −12 and 8 to get −4.

Anwser:

y−4

Step-by-step explanation:

Hope this helps!

(p²qr + pq²r + pqr²)(-pq + qr - pr)
Please solve this problem as soon as possible.​

Answers

Answer:

−p3q2r−p3qr2−p2q3r−p2q2r2−p2qr3+pq3r2+pq2r3

Step-by-step explanation:

(p2qr+pq2r+pqr2)((−p)(q)+qr+−pr)

(p2qr)((−p)(q))+(p2qr)(qr)+(p2qr)(−pr)+(pq2r)((−p)(q))+(pq2r)(qr)+(pq2r)(−pr)+(pqr2)((−p)(q))+(pqr2)(qr)+(pqr2)(−pr)

−p3q2r+p2q2r2−p3qr2−p2q3r+pq3r2−p2q2r2−p2q2r2+pq2r3−p2qr3

−p3q2r−p3qr2−p2q3r−p2q2r2−p2qr3+pq3r2+pq2r3

[tex]\large\underline{\sf{Solution-}}[/tex]

Given that:

[tex]\sf\longmapsto(p^2qr+pq^2r+pqr^2)(-pq+qr-pr)[/tex]

Opening the brackets,

[tex]\sf\longmapsto p^2qr(-pq+qr-pr) + pq^2r(-pq+qr-pr) + pqr^2(-pq+qr-pr)[/tex]

Opening the next brackets,

[tex]\sf\longmapsto p^2qr(-pq)+ p^2qr(qr)- p^2qr(pr) + pq^2r(-pq)+ pq^2r(qr)- pq^2r(pr) + pqr^2(-pq)+ pqr^2(qr)- pqr^2(pr)[/tex]

So,

[tex]\sf\longmapsto -p^3q^2r+ p^2q^2r^2- p^3qr^2 - p^2q^3r+ pq^3r^2- p^2q^2r^2-p^2q^2r^2+ pq^2r^3- p^2qr^3[/tex]

[tex]\sf\longmapsto -p^3q^2r- p^3qr^2 - p^2q^3r+ pq^3r^2+ pq^2r^3- p^2qr^3+ p^2q^2r^2-2p^2q^2r^2 [/tex]

[tex]\sf\longmapsto -p^3q^2r- p^3qr^2 - p^2q^3r+ pq^3r^2+ pq^2r^3- p^2qr^3- p^2q^2r^2 [/tex]

Hence, the product is,

[tex]\longmapsto\bf -p^3q^2r- p^3qr^2 - p^2q^3r- p^2qr^3+ pq^3r^2+ pq^2r^3 - p^2q^2r^2 [/tex]

YO I NEED HELP

A forest owned by the Jumbo Lumber Corporation contains 4,498 trees. If Jumbo Lumber cuts down 57 trees every day, which function can be used to find the number of trees, n, left in the forest after t days?
A.
n(t) = (4,498-57)t
B.
n(t) = 4,498 + 57t
C.
n(t) = 4,498t - 57
D.
n(t) = 4,498 - 57t

Answers

Answer:

D

Step-by-step explanation:

Edmentum:))

b) Raj bought $3.63 worth of raisins.
What was the mass in grams? Give two
possible answers.

Answers

Answer:

how much is 1 gram of raisins worth in money

Step-by-step explanation:

Answer:

How much of 1 gram of raisin was worth in money

The function g(x) is a transformation of the cube root parent function, f(x) = 3vx
What function is g(x)?

Answers

Answer:

C.  g(x)=3√x+4+3

Step-by-step explanation:

g(x) shift left 4, shift up 3, with no compression or stretch.

a=1

h=-4

k=3

The function f(x) after the transformation can be written as -

g(x) = [tex]$\sqrt[3]{x-4} +3[/tex]

What is function?

A function is a relation between a dependent and independent variable. We can write the examples of function as -

y = f(x) = ax + b

y = f(x, y, z) = ax + by + cz

Given is that function g(x) is a transformation of the cube root parent function f(x) = [tex]$\sqrt[3]{x}[/tex].

The function f(x) is shifted up by three units and left by 4 units. So, we can write the rule for the function transformation as -

g(x) = [tex]$\sqrt[3]{x-4} +3[/tex]

Therefore, the function f(x) after the transformation can be written as -

g(x) = [tex]$\sqrt[3]{x-4} +3[/tex]

To solve more questions on functions, visit the link below-

https://brainly.com/question/30194223

#SPJ7

8.4y - 6.8 = - 3.2y + 16.4​

Answers

Answer:

y = 2

Step-by-step explanation:

Other Questions
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