It is systems of equations.
Let cups=c and l=liters
7c + 3l = 9.8
5l - 9c = 6 

35c + 15l = 49 
15l - 27c = 18 
62c = 31 

c = 1/2 pint 
l = 2.1 pint 
1 cup = 1/2 pint 1 liter = 2.1 pints

3 0

3 years ago

The heat in the house is set to keep the minimum and maximum temperatures (in degrees Fahrenheit) according to the equation |x –

dmitriy555 [2]

$|x-72.5|=4 \\
x-72.5=-4 \ \lor \ x-72.5=4 \\
x=-4+72.5 \ \lor \ x=4+72.5 \\
x=68.5 \ \lor \ x=76.5$

The minimum and maximum temperatures in the house are 68.5°F and 76.5°.

5 0

3 years ago

if a pineapple costs $p and a mango costs $q, write an algebraic expression, in dollars, in terms of p and q for the total cost

nadezda [96]

Answer: 5p + 3q

Explantation: 5 pineapples is going to be multiplied by p, the cost of 1. And 3 mangoes are going to be multiplied by q, the cost of 1. And adding the two totals together gives you the total cost.

7 0

3 years ago

Help is it A or B? pls help

Damm [24]

Answer:

$f(x)=-(x+8)(x-2)$