Jeremy is making a trail mix containing raisins and peanuts. Raisins cost $1.50 per pound. Peanuts cost $2.50 per pound. Jeremy spends $10.50 to make 5 pounds of trail mix. He uses the table below to organize this information. Which equation can Jeremy use to determine the amount of raisins in the trail mix?a.r + 1.50 = 1.5r
b. r + (5 – r) = 5
c. 1.5r + 2.5(5 – r) = 10.50
d. 1.5r + 2.5(5 – r) = 5

Answers

Answer 1

Answer: The answer is c. 1.5r + 2.5(5 – r) = 10.50. Let r be the number of raisins and p be the number of peanuts. Raisins cost $1.50 per pound: 1.5r. Peanuts cost $2.50 per pound: 2.5p. Jeremy spends $10.50: 1.50r + 2.50p = 10.50. Jeremy makes 5 pounds of trail mix: r + p = 5. So, we have the system of two equations: 1.5r + 2.5p = 10.50 and r + p = 5. Use the second equation to express p: p = 5 - r. Now, substitute p in the first equation: 1.5r + 2.5(5 - r) = 10.50. Therefore, the correct choice is c. 1.5r + 2.5(5 – r) = 10.50.

Answer 2

Answer:

Answer:

C. 1.5r + 2.5(5 – r) = 10.50

Step-by-step explanation:

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How can you tell if a number is divisible by 3

Answers

If the sum of the digits of a number is divisible by 3.
621=6+2+1=9
9/3=3

if 3 can go into that number equally

The measures of two base angles of an isosceles trapezoid are 7x – 12 and 5x + 6. What is the measure of x?Select one:
a. 3
b. 5
c. 7
d. 9

Answers

Because base angles on an isosceles trapezoid are equal you set up this equation
7x - 12 = 5x + 6
-5x+12 -5x +12
2x = 18
/2 /2
x = 9

What is 3.680 divided by 7.86??

Answers

Answer:

The answer is 0.5 since we are rounding to the tenths place

Answer:

0.47 or 0.468 whichever one is better

Step-by-step explanation:

just divide with a calculator

in a rational no. twice the numerator is 2 more than the denominator. if 3 is added to each, the numerator or the denominator, the new fraction is 2/3. find the original no.

Answers

$(x)/(y)- rational\ number\n\n2x-2=y\n\n (x)/(2x-2)- rational \ number\n\n (x+3)/(2x-2+3)=(2)/(3)\n\nCross\ multiplication\n\n3(x+3)=2(2x-2+3)\n\n3x+9=2(2x+1)\n\n3x+9=4x+2\n\n3x-4x=2-9\n\n-x=-7\ |*(-1)\n\nx=7\n\nOriginal \ number\ is\ (7)/(2*7-2)=(7)/(12)$

R + 11 + 8r= 29 can you help me

Answers

Answer:

Step-by-step explanation:

r+8r+11=29

9r+11=29

9r=29-11

9r=18

r=18-9

r=9

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$= \: \: \: \: r = 2$

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A curve is described by the following parametric equations:x = 2 - t
y = x^2 + 1
Which statement best describes the curve?

The curve is a parabola with a vertex at (2, 1) and is traced from left to right for increasing values of t.
The curve is a parabola with a vertex at (2, 1) and is traced from right to left for increasing values of t.
The curve is a parabola with a vertex at (-2, -1) and is traced from left to right for increasing values of t.
The curve is a parabola with a vertex at (-2, -1) and is traced from right to left for increasing values of t.

Answers

When you use a parameter to describe equations then you are talking about Parametric Equations, that is, you can write both $x$ and $y$ as functions of a parameter $t$ . In this problem we have the following equations:

$x=2-t \n y=x^(2)+1$

So substituting $x$ in $y$ we have:

$y=(2-t)^2+1 \n y=4-4t+t^2+1 \n y=t^2-4t+5$

So this equation represents a parabola where $y$ is the dependent variable and $t$ is the independent variable. This equation is shown in the figure below, the best statement that describes this curve is:

The curve is a parabola with a vertex at (2,1) and is traced from left to right for increasing values of t.

A curve is described by parametric equations x = 2 - t;

y = x^2 + 1 statement the curve is a parabola with a vertex at (2,1) and is traced from left to right for increasing values of t is the best-described curve.

We use a parameter to describe equations then we are talking about Parametric Equations, that isWe can write both as functions of a parameter.

We have given the parametric equation

$x = 2 - t\ny = x^2 + 1$

What is the parametric equation?

The parametric equation defines a group of quantities as functions of one or more independent variables called parameters.

So substituting the value of x in y we get,

$y=(2-t)^2+1\ny=2^2-4t+t^2+1\ny=4-4t+t^2+1\ny=5-4t+t^2\n$

So this equation represents a parabola where y is the dependent variable and t is the independent variable.

This equation is shown in the following figure, the best statement that describes the curve.

Therefore we can say that the curve is a parabola with a vertex at (2,1) and is traced from left to right for increasing values of t.

To learn more about the parametric equation visit:

brainly.com/question/51019

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