Amy was given $74 for a birthday present. This present, along with earnings from a Saturday job, is being set aside for a mountain bike. The job pays $7.50 per hour, and the bike costs $344.

Answer:

You have to multiply the numbers diagonally not vertically.

So

10x = 7(350)

10x = 2450

x = 245

9514 1404 393

Answer:

Step-by-step explanation:

There is a method of solving proportions that is called "cross multiply" or "cross multiplication". For a proportion like this it looks like each numerator is multiplied by the opposite denominator. In this problem, the result would be ...

  7(350) = (10)x

While "cross multiplication" is a description of the appearance of what is happening, what is really happening is that both sides of the equation are being multiplied by the same value: the product of the denominators. This is in accordance with the multiplication property of equality, which requires you multiply both sides of the equation by the same value.

__

The error that was made in this problem is that each numerator was multiplied by its own denominator. Effectively, that multiplied the left side of the equation by 10² = 100, and the right side of the equation by 350² = 122500. This is in direct violation of the multiplication property of equality, so guarantees the value found for x will be wrong.

__

While "cross multiply" is an instruction often given for solving proportions, it causes an extra step to be needed in solving a proportion like this one. All that is really needed is to multiply both sides of the equation by the denominator under the variable. Here, that means multiplying both sides of the equation by 350.

Correct solution

  [tex]\dfrac{7}{10}=\dfrac{x}{350}\\\\350\cdot\dfrac{7}{10}=350\cdot\dfrac{x}{350}\\\\\\35\cdot 7=\boxed{x=245}[/tex]

Answer:

A=32

Step-by-step explanation:

area of parallelogram formula

A=b*h

A=8*4

A=32

Answer:

32

Step-by-step explanation:

Intuition for why the area of a parallelogram is A = b h A=bh A=bh. The formula for the area of a parallelogram is base times height, just like the formula for the area of a rectangle.

A=bh=8·4=32

Hope this helps!

All the love, Ya boi Fraser :)

Answer:

99

Step-by-step explanation:

All exterior angles should add up to 360. :)

Answer:

-23/3

Step-by-step explanation:

sorry if i am wrong

Answer:

C. 362

Step-by-step explanation:

If you divide 1567.46 by 4.33, you get 362.

Answer:

c

Step-by-step explanation:

Answer:

y=8x

Step-by-step explanation:

X is the input, Y is the output. The answer describes that whatever X is, if you times it by 8, you get Y. It can't be "x + 14" because that only works with the first number given. If you do Y = X + 14, 6 doesn't equal 48.

Answer:

1/2x+3

For the slope you have to on the 2,2 you have to go up and over to the next dot on a line and for the y intercept you just have to find it on the line and if it was on the bottom do a -3 rather than a +3.

Answer:

The answer to your problem should be 2

Answer:

x^2 - 6x + 8 = x^2 - 2x - 4x + 8 = x(x-2) - 4(x-2) = (x-4) (x-2)

x - 4 = 0 => x = 4

x - 2 = 0 => x = 2

Answer: she didnt get it wrong so its none of the above

Step-by-step explanation:i did it on khan if i got it right mark me brainliest pls

Answer:

d

Step-by-step explanation:

Answer:

If it's not a multiple of another number then for sure it's a factor

Answer:

.85 times the cost to make the shirt

Step-by-step explanation:

Let x represent cost to make the shirt.

Today, the shirt is in a 15 percent discount from its normal price.

Discount = 15/100 * x = 0.15x

Current cost = Original cost - discount

Current cost = x - 0.15x = 0.85x

The answer is;

.85 times the cost to make the shirt

Answer:

-10 and 8

Step-by-step explanation:

-10 + 8 = -2

-10 x 8 = -80

Answer:

x = -10 and y = 8

x = 8 and y = -10

Answer: b = m

(3 + m)(3 - m)

Step-by-step explanation:

Answer:  -8, -5, -2, 1, 4

Step-by-step explanation:

Y=3x-2

- Plug in the number for x.

x = -2, y = 3x - 2= 3(-2) - 2 = - 6 - 2= - 8

x = -1, y = 3x - 2= 3(-1) - 2 = - 3 - 2= - 5

x = 0, y = 3x - 2= 3(0) - 2 = 0- 2= - 2

x = 1, y = 3x - 2= 3(1) - 2 = 3 - 2= 1

x = 2, y = 3x - 2= 3(2) - 2 = 6 - 2= 4

Answer: $666

Step-by-step explanation: 306+ 60(6)= 666

9514 1404 393

Answer:

  1 11/12

Step-by-step explanation:

  [tex]\dfrac{1}{6}+\dfrac{7}{4}=\dfrac{2}{12}+\dfrac{21}{12}=\dfrac{2+21}{12}\\\\=\boxed{\dfrac{23}{12}=1\dfrac{11}{12}}[/tex]

Answer:

23mm

528 mm^2

Step-by-step explanation:

The area of a rectangle is given as  the product of its length and width.

Given that 12x²+17x-5mm² is the area

factorize

12x²+17x-5 = 12x²+20x -3x-5

= 4x(3x+5)-1(3x+5)

= (3x+5)(4x-1)

For the rectangle to be a square, it means that the sides 3x+ 5 and 4x - 1 are equal. Hence

3x + 5 = 4x -1

collect like terms

3x - 4x = -5 -1

-x = -6

x = 6

substitute into the sides

3x + 5 = 3(6) + 5 = 23

4x -1 = 4(6) - 1 = 23

The area of the square which is a product of the sides

= 23 * 23

= 529

Answer:

I got B

Step-by-step explanation

9k² = 225

k² = 225 : 9

k² = 25

k = -5 and k = 5 because :

(-5)² = (-5) * (-5) = 25

5² = 5 * 5 = 25

Answer:

Mr body took 9 blue pills

Step-by-step explanation:

Total number of pills consumed = 17

Number of blue pills, b = 11

Number of blue pills, b = g + 3

So that,

b = g + 3

11 = g + 3

g = 8

Total number of pills recommended = b + g

                                                            = 11 + 8

                                                            = 19

Total number of pills consumed = 17

Thus,

Number of blue pills consumed = 17 - 8

                                                     = 9

Therefore, Mr body took 9 blue pills.

Answer:

[tex] \frac{7}{9} x + 34 = 174 \\ => \frac{7x}{9} = 174 - 34 \\ = > \frac{7x}{9} = 140 \\ = > 7x = 140 \times 9 \\ = > 7x = 1260 \\ = > x = \frac{1260}{7} = 180 \\ { \huge{ \pink{x = 180}}}[/tex]

Answer:

At these rates Sydney read 10 pages per hour more than Zander.

Step-by-step explanation:

Zander read [tex]13\frac{3}{4}[/tex] pages in [tex]\frac{1}{4}[/tex] of an hour.

Therefore, pages read by Zander in 1 hour = [tex]\frac{\text{Total pages read}}{\text{Total time taken}}[/tex]

= [tex]\frac{13\frac{3}{4}}{\frac{1}{4}}[/tex]

= [tex]\frac{55}{4}\times \frac{4}{1}[/tex]

= 55 pages per hour

Sydney read [tex]43\frac{1}{3}[/tex] pages in [tex]\frac{2}{3}[/tex] of an hours.

Pages read by Sydney in 1 hour = [tex]\frac{43\frac{1}{3}}{\frac{2}{3} }[/tex]

= [tex]\frac{130}{3}\times \frac{3}{2}[/tex]

= 65 pages per hour

Therefore, number of pages read more by Sydney as compared to Zander,

= 65 - 55

= 10 pages per hour

At these rates Sydney read 10 pages per hour more than Zander.

Answer:

oo

online cheating

this is not fair

Answer: it is the first one

Step-by-step explanation: