Harley solved the following equation and knows she made a mistake. Explain to her where her error was and then solve the equation correctly.

Answer:

3x + x = 48

12 pages

Step-by-step explanation:

let the number of pages read by Joelle be represented by x

Joelle = x pages

Deirdre = 3x (since she reads 3 times as much pages as Joelle)

3x + x = 48

4x = 48

x = 12 pages

So Joelle reads 12 pages

Answer:

4 pencils

Step-by-step explanation:

Note=  pencils costing 0. 90p

Given data

Balance= £10

pen= 3*1.45= £4.35

pencils=0.90p

change= £2.05

2.05= 10-4.35-90p

solve for p

2.05= 5.65-90p

collect like terms

5.65-2.05= 0.90p

3.6=90p

divide both sides by 90

p=3.6/0.90

p=4

Answer:

I don't know.

Step-by-step explanation:

Answer: I would answer but the image is blocked for me- can you type the problem by any chance?

Step-by-step explanation:

Answer:

3 feet

Step-by-step explanation:

Initial value usually means the y value when x=0

Angles that are supplimentary to ∠1 are ∠4 and ∠2 as they form and angle which measures 180°.

A line is called a transvarsal line when it intersects two or more than two lines at two or more than two different points.When a transvalsal intersect two lines at two different points two pairs of alternate angle forms and if they are congruent to each other then the lines which are intersected by a transvarsal are parallel to each other.

We know two are supplimentary if their sum is 180° and we also know that when two lines intersect each other their adjacent angles supplimentary to each other.

∴ Angles that are supplimentary to ∠1 are, ∠4 and ∠2 meaning ∠1 and ∠4 together form a supplimentary angle and ∠1 and ∠2 together form a supplimentary angle.

learn more about alternate angles here :

https://brainly.com/question/28380652

#SPJ2

Answer:

140 x  

25%=35 or 140/4 = 35

I think-

Step-by-step explanation:

Answer:

a

Step-by-step explanation:

to be a function, every x has to have exactly one y, so there can't be the same number x twice wirh different y's

Answer:

b= 75

Step-by-step explanation:

Answer:

I don't know this stuff, but it is -20.

Total no. of problems= x

No of questions answered correctly= 63

Percentage = 70%

A/q,

70/100*x= 63

x= 63*100/70

x= 90

There were 90 questions in the test.

Hope it helps you.

Answer:

y- intercept: 3

Step-by-step explanation:

m = (y-y')/(x-x')

y = mx + b     b: y intercept

m = (9 - -1) / (-3 -2) = 10 / -5 = -2

b = y - mx = -1 - (-2)*2 = -1 + 4 = 3

Greetings I am BrotherEye

Answer: How find the volume of a triangular pyramid?

Triangular pyramid volume formula

In words: the volume of a triangular pyramid is one-third of the product of the base area and the pyramid's height

Step-by-step explanation:

Now in mathematical terms Use the formula for the volume of a triangular pyramid: V=13Ah , where A = area of the triangular base, and H = height of the pyramid.

Best of Luck!

Answer:

LOOK

Step-by-step explanation:

7- 0.10X+0.25Y=0.80

8- 2 QUATERS ARE 50 CENTS.80 CENTS-50 CENTS IS 30 CENTS

Answer:

there monthly budget is $4000

Step-by-step explanation:

if 600 is 15% then there is 85% of there budget left so in order to find how much is 1% then 600/15=40 so $40 = 1% so 1%x100=100%  and 40x100=4000 so 100% of there budget is $4000

hope this helps have a blessed day :)

Answer:

700%

Step-by-step explanation:

504/72 = 7

7 * 100 = 700

Answer:

y=4x+3

Step-by-step explanation:

find the slope using y2-y1/x2-x1

11-3/2-0

simplify

8/2

simplify

4

find b by using the equation y=mx+b

since we know 4 is the slope, plug it in for m

plug an ordered pair into y=4x+b

3=4(0)+b

3=b

plug b in y=4x+b

y=4x+3

9514 1404 393

Answer:

  B

Step-by-step explanation:

Statement B is not true. Angles 2 and 7 are alternate exterior angles.

Answer: 24.0825%

Step-by-step explanation:

8.25% as fraction: 33/400

24+33/400

Convert element into fraction: 24x400/400

24x400/400+33/400= 9633/400

Final step: Make it into a decimal

24.0825% is your answer

Answer:

Option 1 = 3/2

Step-by-step explanation:

The rise = 3

The run = 2

9514 1404 393

Answer:

  16. x = 11

  17. x = 4

Step-by-step explanation:

The triangles of interest are congruent, so corresponding parts have the same measure.

__

16. 2x+2 = x+13

  x = 11 . . . . . . . . . subtract x+2 from both sides

__

17. 4x+4 = 3x+8

  x = 4 . . . . . . . . . subtract 3x+4 from both sides

Answer:

$10

Step-by-step explanation:

Since 6 cost four dollars 3 would cost 2 dollars multiply 3 to get 15 bananas and 2 to get $10

Answer:

$10

Step-by-step explanation:

Make proportion:

?= cost  of bananas

6  -  4

15  -  ?

?= 15×4÷6=10

Answer:

108pi

Step-by-step explanation:

We do not need to know the height and radius, as the formula for the volume of a cone is just a third of the volume of a cylinder. So we have 36pi * 3 or 108pi.

Answer:

the answer is B

Step-by-step explanation: hope this helps :)

Answer:

J (3; 9)

Step-by-step explanation:

Imagine each distance like a triangle and use Pythagorean theorem.

To illustrate I drew triangle ΔLON in the picture

Finding the distance between LN.

LO = [tex]y_{L} - y_{O}[/tex] = 5 - 1 = 4

NO = [tex]x_{N} - x_{O}[/tex] = 5 - 4 = 1

According to Pythagorean theorem

[tex]LN^{2} = LO^{2} + NO^{2}[/tex]

[tex]LN^{2}[/tex] = [tex]4^{2} + 1^{2}[/tex] = 17

LN  = [tex]\sqrt{17}[/tex] (LN > 0)

Since ΔMLN ≅ ΔKLJ, JL = LN (they are clearly equal triangles)

Mark J coordinates as (x; y)

Draw another triangle JOL, ∠JOL = 90°)

OJ is parallel with x axis and OL is parallel with y axis.  O coordinates then are (4; y)

OL  = y - 5

OJ = 4 - x

Note that ΔLON = ΔJOL, so OL is the same as LO and therefore

OL = LO = y - 5 = 4;

y = 9

OJ = NO = 4 - x = 1

x = 3

So the coordinates of J are (3; 9)

Similarly find the coordinates of K

Answer:18

Step-by-step explanation:

same as other side 90 degrees

Answer:

It's B

Step-by-step explanation: