Your friend solves the equation $-4.2x=21. Is your friend correct? yes or no? Explain your reasoning.

Answers

Answer 1

Answer:

yes

Step-by-step explanation:

I am  not for sure though, hope it helps anyway!

Answer 2

Answer:

yes

Step-by-step explanation:


Related Questions

Find an equation of a line perpendicular to the given line and contains the given point. Write the equation in slope-intercept form.

y = ?

Answers

Answer:

y = -1/5 x -2

Step-by-step explanation:

Given line y = 5x - 1

as in slope intercept form m = 5

point (5, -3)

for two lines to be perpendicular product of slopes must be -1\

so for new line  slope is

m1 * m2 = -1

5 * m2 = -1

m2 = -1/5

line equation is y - (-3) = -1/5 (x - 5)

y + 3 = -1/5 x + 1

y = -1/5 x + 1 - 3

y = -1/5 x -2

Answer:

Step-by-step explanation:

Slope of the ⊥ line is ( - [tex]\frac{1}{5}[/tex] )

y - ( - 3 ) = - [tex]\frac{1}{5}[/tex] ( x - 5 )

y + 3 = - [tex]\frac{1}{5}[/tex] x + 1

y = - [tex]\frac{1}{5}[/tex] x - 2

Pleas help me3 this is for khan academy!!


Delilah does 184 jumping jacks in 4 minutes. She does her jumping jacks at a constant rate.
How many jumping jacks can Delilah do per minute?

Answers

Answer: deliah does 46 jumping jacks per min.
Have a great day/night :) do you need help with any more Khan Academy questions?

Mai works mowing lawns and babysitting. She earns $7.60 an hour for mowing and $7.10 an hour for babysitting. How much will she earn for 1 hour of mowing and 4 hours of babysitting?

Answers

Answer:

1 hour mowing=7.60

4 hours of babysitting= 28.40

7.60+28.40= $36 in total

Step-by-step explanation:

1 hour of mowing and 4 hours of babysitting: 7.60 + (7.10)x4 = 36$

Ok, I’m done. Thank to me :>

Which expression is equivalent to −3/4÷(−8/12)? A) −3/4×8/12 B) 3/4×(−8/12) C)−3/4×12/8 D) 34×12/8

Answers

D. Because when you divide fractions you need to keep change flip and multiply it by the reciprocal so that is what d shows you
D I GOT IR RIGHT ON MY TEST !!!

In a package of 60 markers, the number of black markers is 3/7 of the other colour. Find the number of black markers in the package,

Answers

Step-by-step explanation:

Im so sorry i took so long to answer i had to do a lot of typing and in the middle my laptop ran out of charge so it took me a while to turn it on.I think it took about 1 hour to write this im so sorry here is the answer :

(BRAINLIEST IF CORRECT AND SHOWS WORK) To make his famous chocolate cake, a baker uses chocolate that is 75% cocoa. Because his supplier delivered 100 lb of chocolate with 70% cocoa, The baker needs to melt and mix the delivery with chocolate that has 90% cocoa. How much of the 90% chocolate should he use?

Answers

33 and 1/3 should be the correct answer
he should use 33 and 1/3.

solve the equation 60= 3/4 h

Answers

H=80 hope that helps

Answer:

H=80

Step-by-step explanation:

10 POINTS: Last week, Belle's Diner sold 8 milkshakes with whipped cream on top and 24 milkshakes without whipped cream. What percentage of the milkshakes had whipped cream?

10 points if solve, will give brainliest to the correct answer. please explain I really need help with solving percentages, ( Thanks SO MUCH!)
* THANKS!*

Answers

Answer:

25% of the milkshakes had whipped cream.

Step-by-step explanation:

Belle's Diner sold 8 milkshakes with whipped cream and 24 milkshakes without whipped cream. Given this information, we can add these two numbers to identify the total number of milkshakes Belle's Diner made:

[tex]8+24=32[/tex]

Belle's Diner made 32 milkshakes in total.

To find the percentage of milkshakes that had whipped cream, simply divide the number of milkshakes that had whipped cream (8) by the total number of milkshakes (32):

[tex]\frac{8}{32} =.25[/tex]

.25 as a percentage is 25% (move the decimal point two decimal places to the right).

Answer:

25% of the milkshakes have whipped cream on top.

Step-by-step explanation:

24+8=32

8/32=.25

*Note: To get the decimal form of any fraction you divide the numerator by the denominator.

.25 = 25%

Please answer...
Q. Find the value of in each diagram. Show all your working and give reasons for any statements.

Answers

B- make it full circle. 360 degrees. Then one is a 90 degree so only solve for 250 degrees. Both angle have x so divide 250 by 2. One side is minus 30 so 125-30=95. Angle with just X is 125 angle X-30=95

Jenny is comparing the cost of two packages of socks. 1 package has eight pairs of socks for $12. Another package has 3 pairs of socks for $6. Are the rates equivalent?

Answers

Nope
8 to 12
3 to 6-
6 to 12

Answer:

No, they are not equal rates.

Step-by-step explanation:

Package 1:

8 pairs : $12

8 ÷ 12 ≈ $0.67

Package 2:

3 pairs : $6

3 ÷ 6 = $0.6

Comparing...

$0.6 ≠ $0.67

need help!

Tyler's mom purchased a savings bond for Tyler. One year after it was purchased, the value of the savings bond was $156. If the value of the savings bond increases by 4% after one year, what was the value of the bond when Tyler's mom purchased it
Tyler's mom purchased another savings bond for $275 with the same return. How much will it be worth in one year?

give the correct answer, and I'll give brainliest
I purple You!

Answers

I don’t know that answer I just need to do this to ask anything question
10%=15\2=7.5 1%=1 7.5-1=6.5

Gaetano spent $ 11.34 on Pens. If each Pen costs $1.89, how many pens did he buy?

Answers

Answer:

6 pens

Step-by-step explanation:

11.34÷1.89=6

so that means 6 pens

Find the value of x in the following diagrams (I drew them instead)

Answers

Answer:

1)  51°      2)     _?_     3) 55 ⁰          4) 30°

Step-by-step explanation:

3) First you find out what is G which = 90⁰, And then add the 90 and 75.

Then we will make this equation : (90+75) - 360 ( because Angle Sum property = Sum of all angles from the inside = 360⁰)

Then we do that which will be = 185-360

                                                   =  175

The we plus all the x's = x + 2x

                                        = 3x

then our equation is =    3x= 175

                                   x = 175/3  (Because of Transposition )

                                    x= 55°

And Then we do add and multiply

Like This: x=55

               2x= 2x55 = 110°

1) First add 67 and 62

Then our equation= (67+62)-180 ( Because of Interior angle sum property of triangles = sum of all interior angles = 180°)

Then = 129 - 180

         = 51 °

And then because of opposite angle are equal so our x= 51° because our angle in the triangle above x = 51° so it will be equal opposite (hope you understand)

4) First add 2x+4x

    Our Equation= (2x+4x)=90° (be cause right angle = 90°)

                          =     6x=90              

                            x =90/6

                              x = 15°

So, 2x= 2 x 15 = 30°

     4x = 4 x 15 = 60°

2) Sorry I don't know the second one but i tried solving it but one favor can you please make another question for the second one in brainly so i can answer there.

K answer so you can mark other brainliest

52,398 rounded to the nearest thousands

Answers

The answer is 52,000

Answer:

52000

Step-by-step explanation:

PLEASE HELP I WILL GIVE BRAINLEIST!!!

Answers

108%

81/75=1.08 which equals 108%
108 percent hope this helped!

Gerard is calculating the area of a composite figure. The figure is made up of a square with side lengths of 6 centimeters (cm) and a triangle with a base of 6 cm and a height of 3.5 cm.
Gerard multiplies 6 by 3.5 to get that the area of the figure is 21 cm2, which is not the correct area.

Which statement correctly describes how Gerard could have found the correct answer?

-He should have found the area of the square, 36 cm2, and added it to the area of the triangle, 27 cm2, to get 63 sq. cm.
-He should have added 6 to 3.5 to get 9.5 sq. cm.
-He should have multiplied 21 by 12 to get 10.5 sq. cm.
-He should have found the area of the square, 36 cm2, and added it to the area of the triangle, 10.5 cm2, to get 46.5 sq. cm.

HELP PLEASE

Answers

The last one where he finds the area of the square [36] and then the triangle [10.5] and then add them together

The correct statement is Gerard should have found the area of the square, 36 cm², and added it to the area of the triangle, 10.5 cm², to get 46.5 sq. cm.

What is Area?

Area of a geometrical shape or figure in two dimension is the space which lies within the boundary of the shape.

The given composite figure composed of a triangle and a square.

So, we should find the area of both the triangle and the square and add it to get the area of the composite figure.

Let A₁ and A₂ be the area of the square and area of the triangle respectively.

Area of a square with side lengths 'a' = a²

Here, length of the side of the square = 6 cm

A₁ = 6² = 36 cm²

Area of a triangle with base 'b' and height 'h' = [tex]\frac{1}{2}[/tex] × b × h

Here, b = 6 cm and h = 3.5 cm

A₂ =  [tex]\frac{1}{2}[/tex] × 6 × 3.5 = 10.5 cm²

Area of the composite figure = A₁ + A₂

                                                =  36 cm² + 10.5 cm²

                                                = 46.5 cm²

Hence Gerard could have found the correct answer by finding the area of the square as 36 cm², and adding it to the area of the triangle, 10.5 cm², to get the area of the figure as 46.5 cm².

To learn more about Area, click:

https://brainly.com/question/27683633

#SPJ2

someone help me please.

Answers

Answer:

D. Henry's balloon was further from town at the beginning, but Tash's balloon traveled more quickly.

Step-by-step explanation:

With the lack of information provided, I was able to create a base and general observation and create an equation based off everything I know and believe. (may not be accurate due to lack of information and background on assignment and curriculum)

TASHA: y = 7x + 15

(current distance) = (7 miles per hour) + (starting distance)

(29) = (14) + (15)

HENDRY: y = 6x + 25

(current distance = (6 miles per hour ) + (starting distance)

(37) = (12) + (25)

Answer D is correct! I hope you do well!!

This is urgent please help I give brainliest if right

Answers

Answer:

5

Step-by-step explanation:

Answer:

5

Step-by-step explanation:

every time x changes y goes up by 5

HELP ME ASAP!!!!!!!!!

Answers

Answer:

Step-by-step explanation:No

Answer:

2*30       10*6       1*60   20*3

Step-by-step explanation:

Find 2 numbers that multiplied have a result of 60

If Jessica takes 2/5 hour to repaint 5/8 of her wall, how long will it take to paint her whole wall?

Answers

Answer:

38.4 or 38 2/5 minutes

Step-by-step explanation:

2/5×60 = 24

24÷5 = 4.8

4.8×8 = 38.4 minutes

I think the answer is 38 and 2/5

write down the inequality shown on the number line.

Answers

Answer:

The inequality on the number line shown is {x:x<2}

The inequality shown on the number line is represented by the relation x<2.

As,  the inequality on a number line, the notation includes the open circle at 2.

This means that the value of 2 itself is not included in the set of solutions.

In the notation "x < 2," the symbol "<" indicates "less than," and the number 2 is the upper bound of the inequality.

Since the inequality is strict, use an open circle to show that the point 2 is not part of the solution set.

Therefore, the inequality is "x < 2".

Learn more about Number Line here:

https://brainly.com/question/32029748

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I need to turn it in by 5pm Please Help!!!!!

At the movies, you order 3 boxes of popcorn and a bottle of water. The cost of the bottle of water is $1.75. Your total cost is $9.25. Write an EQUATION to find the cost of one box of popcorn.

Answers

3 boxes of popcorn and a bottle of water are $9.25
A bottle of water is $1.75

$9.25 - $1.75 = $7.5 (the price of 3 boxes of popcorn)
We divide $7.5 by 3 to know the price of one box of popcorn
$7.5 : 3 = $2.5
One box of popcorn costs $2.5

Answer:

Step-by-step explanation:

$9.25-$1.75=7.5

now you divide 7.5 by the number of popcorn have brought

$7.5 divided by 3= $2.5

pls help... 30 pts.. i'm so tired rn-
On the following scale drawing, the scale is 2 centimeters = 1 meter
Make a new scale drawing of this rectangular figure using the scale 3 centimeters = 1 meter. Make sure to label the new dimensions.
What are the actual dimensions of the figure?

Answers

343 because you take the divider and multiply it by the 7.8

A stock has a return of -$1.26 per day. Find the number of days until the total return is -$10.08.

The total return is -$10.08 after _?_ days.

Answers

Answer: 8

Step-by-step explanation: You can use division to solve.

Answer:

8 days

Step-by-step explanation:

1 day : -$1.26

? days : -$10.08

-10.08 ÷ -1.26 = 8

So ? = 8

helpp i don't know the answer an i need it right away

Answers

Answer:

8

Step-by-step explanation:

in the box put in 8 since (2)^3 is 8

45, pemdas! 4b^3 first! b=2 so 2x2x2=8 then 8 times 4 is 32! Then do 3a, a=6 is 18! 18+32 is 50 then subtract 5 :)

How many fossilized snail shells does Elmer have?

Answers

Answer:

279

Step-by-step explanation:

elmer has 279 fossilized snail shells

What is 4 – (-6)?
What is the sum of -2/3 and -4/6?

Answers

Answer:

4-(-6)=10

-2/3-4/6=-1 2/6

Answer : 10

2 Answer : -2

I hope that helps

What is the answer its forcing me to write more so how is your day if its not good i hope it gets better

Answers

Answer:

good

Step-by-step explanation:

A and E
For A all you have to do is collect like terms
And for E you need to factorise the answer you got in A

PLS HELP IM NOT SMART PLSS ITS DUE SOON

Answers

Answer:

Step by step explanation:
I can’t help you. I need help myself.

Angle B and angle C are supplementary. If the measure of angle B is 14 times the measure of angle C, what is the difference between the angles' measures?

Enter your answer as the correct number of degrees, like this: 42
HELP PLEASEEEEEE

Answers

Answer:

156°

Step 1: Create an Equation Using the idea (Angle B + Angle C = 180°)

=> 14x + x = 180°

Step 2: Solve.

=> 14x + x = 180°

=> 15x = 180°

=> x = 12°

Step 3: Multiply 12 by 14.

=> 12 x 14 = 168°

Step 4: Subtract 168 by 12.

=> 168 - 12

=> 156°

Final Answer:

After working on this problem, we can conclude that the difference between Angle B and Angle C is 156°

Hoped this helped.

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