All categories

2 years ago

How to solve numbers 17-28 Supplementary Problems

Mathematics

1 answer:

Virty [35]2 years ago

8 0

The answers to the questions

You might be interested in

Select the correct answer.

fomenos

Answer:

The answer is A. 133

Step-by-step explanation:

84 + 92 + 87 + 104 = 367

367 + 133 = 500

5 0

2 years ago

Please answer correctly !!!!!!!!! Will<br> Mark brainliest !!!!!!!!!!!!!

il63 [147K]

Answer:

$x=-\frac{-20+\sqrt{-20w+3600}}{10},\:x=-\frac{-20-\sqrt{-20w+3600}}{10}$

Step-by-step explanation:

$w=-5\left(x-8\right)\left(x+4\right)\\\mathrm{Expand\:}-5\left(x-8\right)\left(x+4\right):\quad -5x^2+20x+160\\w=-5x^2+20x+160\\Switch\:sides\\-5x^2+20x+160=w\\\mathrm{Subtract\:}w\mathrm{\:from\:both\:sides}\\-5x^2+20x+160-w=w-w\\Simplify\\-5x^2+20x+160-w=0\\Solve\:with\:the\:quadratic\:formula\\\mathrm{Quadratic\:Equation\:Formula:}\\\mathrm{For\:a\:quadratic\:equation\:of\:the\:form\:}ax^2+bx+c=0\mathrm{\:the\:solutions\:are\:}\\x_{1,\:2}=\frac{-b\pm \sqrt{b^2-4ac}}{2a}$

$\mathrm{For\:}\quad a=-5,\:b=20,\:c=160-w:\quad x_{1,\:2}=\frac{-20\pm \sqrt{20^2-4\left(-5\right)\left(160-w\right)}}{2\left(-5\right)}\\x=\frac{-20+\sqrt{20^2-4\left(-5\right)\left(160-w\right)}}{2\left(-5\right)}:\quad -\frac{-20+\sqrt{-20w+3600}}{10}\\x=\frac{-20-\sqrt{20^2-4\left(-5\right)\left(160-w\right)}}{2\left(-5\right)}:\quad -\frac{-20-\sqrt{-20w+3600}}{10}\\The\:solutions\:to\:the\:quadratic\:equation\:are\\x=-\frac{-20+\sqrt{-20w+3600}}{10},\:x=-\frac{-20-\sqrt{-20w+3600}}{10}$

6 0

3 years ago

when gail goes on a hike she always packs a ratio of 20 protien bars to 15 water bottles in her backpack . for a short hike ,gai

dimulka [17.4K]

Answer:

4 bars

Step-by-step explanation:

Gail's ratio of bars to bottles is ...

20 : 15 = 4 : 3

For 3 bottles, she should pack 4 bars.

8 0

3 years ago

Joanna receives 8$ an hour when she works at the coffee shop plus she earns tips as well. Last week she made 40$ in tips and ear

densk [106]

Answer:

she worked 17 hours

Step-by-step explanation:

first you subtract 256-40

then you get 216 and divide by 8

then you get 27 as an answer

3 0

3 years ago

Two decimal numbers have a difference of 0.7 And and a sum of 1.What are the numbers?

klio [65]

The two numbers are 0.85 and 0.15
if you add them together you get 1, 0.85+0.15=1
and if you subtract them you get 0.7, 0.85-0.15=0.7

3 0

3 years ago

Read 2 more answers