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2 years ago

Y - 0.8x = 0.5 5y - 2.5 = 4x *Substitution

Mathematics

2 answers:

murzikaleks [220]2 years ago

4 0

Answer:

y =1.6 x

Step-by-step explanation:

hope this is right!!!

arlik [135]2 years ago

3 0

Answer:

y=0.5+0.8x

Step-by-step explanation:

solve for the first variable in one of the equations and then substitute the result into the other equation

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What is the range of the function f(x)=6x+5 for the domain {-1,0,1,2,3}

bogdanovich [222]

{-1, 5, 11, 17, 23} ................

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2 years ago

2D - 5F = 30 <br><br> Solve for F

Allushta [10]

Answer:

F = -6 + 2d/5

Step-by-step explanation:

2d-5f=30

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-5f=30-2d

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3 years ago

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Step-by-step explanation:

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2 years ago

Which of the followingis multiplicative of -a? (-1/a a 1 1/a)

Elodia [21]

Given:

The given value is $-a$ .

To find:

The multiplicative inverse of $-a$ .

Solution:

We know that $y$ is the multiplicative interval of $x$ if $xy=1$ .

Let $x$ be the multiplicative inverse of the given value $-a$ . Then,

$(-a)\times x=1$

Divide both sides by $-a$ .

$x=\dfrac{1}{-a}$

$x=-\dfrac{1}{a}$

Therefore, the multiplicative inverse of $-a$ is $-\dfrac{1}{a}$ . Hence the correct option is A.

4 0

2 years ago

Samuel used 1/5 of an ounce of butter to make 1/15 of a pound of jelly. How many ounces of butter are needed to make a pound of

vredina [299]

Set up ratio problem

.2 oz butter / (1/15) lb jelly = x / 1 lb jelly

Then cross multiply the stuff opposite each other in the fractions... set it up as a multiplication problem

.2 × 1 = (1/15) × x

.2 = (1/15)x

Multiply both sides of equation by 15 to clear out the (1/15) fraction and get x

x = 3

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3 years ago