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3 years ago

Can someone help me with this question and please show me how you got them thanks in advance

Mathematics

1 answer:

vichka [17]3 years ago

5 0

Together will do in 12 hours

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Unit rate $20 for 3 pies sold

rjkz [21]

Answer:

20 over 1 = 3 pies of gold

Step-by-step explanation:

In a unit rate , the number in the denominator is always 1 . There's 20$ for 3 pies of gold.

6 0

3 years ago

HELP ME DO THIS PLZ

cestrela7 [59]

Answer:

It landed at a height of 14 feet

Step-by-step explanation:

Given

$y = -\frac{1}{8}x^2 +4x$ --- Path of a t-shirt

$3y = 2x - 14$ --- height of bleachers

Required

Height when t-shirts land in bleachers

$3y = 2x - 14$

Make y the subject

$y = \frac{2}{3}x - \frac{14}{3}$

Substitute $y = \frac{2}{3}x - \frac{14}{3}$ in $y = -\frac{1}{8}x^2 +4x$

$\frac{2}{3}x - \frac{14}{3} = -\frac{1}{8}x^2 +4x$

Multiply through by 24

$16x- 112 = -3x^2 +96x$

Express as:

$3x^2 + 16x -96x- 112 = 0$

$3x^2 -80x- 112 = 0$

Using a calculator:

$x = 28$ or $x = -\frac{4}{3}$

x can not be negative:

So:

$x = 28$

Substitute $x = 28$ in $y = -\frac{1}{8}x^2 +4x$ to calculate the height it landed

$y = -\frac{1}{8} * 28^2 + 4 * 28$

$y = 14$

3 0

2 years ago

What's your annual income if you're unemployed?

Bad White [126]

Answer:

$46,819 is the average unemployed salary

6 0

2 years ago

A circular plate has a radius of 12 inches. What is its area? What is the value of supermeter?

juin [17]

Step-by-step explanation:

≈

452.38934

in²

4 0

2 years ago

I need help with 3) and 4)

ratelena [41]

3) Triangle = 180 degrees
180= 55+90+x
180=145+x
-145 -145
35=x
x=35 degrees

4) 1 liter = 1000 ml
Emilee drink more

6 0

3 years ago