MATHEMATICS HIGH SCHOOL

A car can travel 247 kilometers on 19 liters of gasoline. how much gasoline will it need to go 429 kilometers?

Answers

Answer 1

Answer:

find the number of miles per 1 liter:

247 kilometers / 19 liters = 13 kilometers per liter.

Divide how may kilometers they want to go by kilometers per liter:

429 kilometers / 13 kilometers per liter = 33 liters are needed.

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Determine the sign of the product -2/9×1/7 enter + for positive or - or negative
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Use the REMAINDER THEOREM to explain whether or not (x-2) is a factor of F(x)=x^4-2x^3+3x^2-10x+3

Answers

$(P(x))/(R(x))|(D(x))/(Q(x))$

$\frac{x^4-2x^3+3x^2-10x+3}{}|\frac{x-2}{}$

$(x^4-2x^3+3x^2-10x+3)/(-x^4+2x^3)|(x-2)/(x^3)$

$(3x^2-10x+3)/(-3x^2+6x)|(x-2)/(x^3+3x)$

$(-4x+3)/(4x-8)|(x-2)/(x^3+3x-4)$

$\frac{-5}{}|(x-2)/(x^3+3x-4)$

$\boxed{\boxed{(x^4-2x^3+3x^2-10x+3)/(-5)|(x-2)/(x^3+3x-4)}}$

$R(x)=-5$

Cristina bought a bag of coffee for $8.47. The weight of the bag was 7/8 of a pound. What was the price, per pound, of the coffee?

Answers

~For this problem, you need to divide.
~The easy way that I think might help you is if you change the fraction into a decimal.

$(7)/(8) = 0.875$

Now divide $8.47 by 0.875
$(8.47)/(0.875) = 9.68$

The price per pound of the coffee was $9.68

$8.47/ (7/8 pound)= $9.68/pound.

The price of the coffee is $9.68/pound~

If 4x^2 - 100 = 0, what are the roots of the equation?

Answers

the roots to this equation i s either positive or negative five

Positive or negative 5

a meter is one thousandth of a kilometer . write an equation to show the relationship between 962 meters and 0.962 kilometers

Answers

1,000m=1k
therefore, 962m=.962k
idk what you needed but
962/1,000=.962

Craig has 36 ounces of flour left in one bag and 64 ounces of flour in another bag. Use the Baking Flour Equivalent table to find how many cups of flour Craig has in all.Baking Flour Equivalents

Number of Ounces. Number of Cups
16. 3.6
10. 2.3
8. 1.8

Answers

so 16 = 3.6, 10 = 2.3 so 20 = 4.6 then add 16 + 20 to get 36 so 3.6 + 4.6 = 8.2
36 ounces = 8.2 cups

36 = 8.2, 8 = 1.8, 20 = 4.6, 36 + 8 + 20 = 64 ounces so 8.2 + 1.8 + 4.6 = 14.6 cups
64 ounces = 14.6 cups

Total cups = 8.2 + 14.6 = 22.8 cups

What 2 numbers multiply to be -14 and add to be -3

Answers

xy = -14
x + y = -3

$xy = -14$
$(xy)/(x) = (-14)/(x)$
$y = (-14)/(x)$

$x + y = -3$
$x + (-14)/(x) = -3$
$(x^(2))/(x) + (-14)/(x) = -3$
$(x^(2) - 14)/(x) = -3$
$x^(2) - 14 = -3x$
$x^(2) + 3x - 14 = 0$
$x = \frac{-(3) \± \sqrt{(3)^(2) - 4(1)(-14)}}{2(1)}$
$x = (-3 \± √(9 + 56))/(2)$
$x = (-3 \± √(65))/(2)$
$x = (-3 \± 8.06)/(2)$
$x = -1.5 \± 4.03$
$x = -1.5 + 4.03$ $or$ $x = -1.5 - 4.03$
$x = 2.53$ $or$ $x = -5.53$

  x + y = -3
2.53 + y = -3
- 2.53 - 2.53
  y = -5.53
  (x, y) = (2.53, -5.53)

x + y = -3
  -5.53 + y = -3
+ 5.53   + 5.53
  y = 2.53
  (x, y) = (-5.53, 2.53)

The two numbers that multiply to -14 and add up to -3 are -5.53 and 2.53.

Answer:

number one is corout

Step-by-step explanation

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