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4 years ago

Algebra Evaluate each expression for the given value of x

Mathematics

1 answer:

Andrew [12]4 years ago

5 0

Answer:

Step-by-step explanation:

Substitute 7 as x in the original equation, (9x-13)

9(7)-13

1) Multiply 9 and 7:

63-13

2) Subtract:

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At the grocery store, Lily spent m dollars on milk, twice that amount on fruit, and 6 dollars less than 3 times the amount spent

AlladinOne [14]

Answer:

The amount of money Lily had when she left the store, in terms of m, is 86 - 6m

Step-by-step explanation:

1. Let's review the information given to us to answer the question correctly:

m = Milk Lily purchased

2m = Fruit Lily purchased (twice that amount on fruit)

3m - 6 = Bread Lily purchased (6 dollars less than 3 times the amount spent on milk for bread)

Amount of money Lily entered = $ 80

2. How much money did Lily have when she left? Write your answer in terms of m.

Let's write the equation to find out the money left in terms of m, this way:

Money left = 80 - m - 2m - (3m - 6)

Money left = 80 - m - 2m - 3m + 6

Money left = 86 - 6m

The amount of money Lily had when she left the store, in terms of m, is 86 - 6m

3 0

3 years ago

Read 2 more answers

Write the equation given the point 4,2 and slope 1/2

raketka [301]

Hello.

We have a point that the line passes through and its slope.

Let's write the equation in Point-Slope Form:

y-y₁=m(x-x₁)

In this case,

y₁=2

m= $\displaystyle\frac{1}{2}$

x₁=4

Plug in the values:

$\mathrm{y-2=\displaystyle\frac{1}{2} (x-4)}$

This is point-slope form. Now, what about Slope-Intercept?

First, we should distribute $\displaystyle\frac{1}{2}$ :

$\mathrm{y-2=\displaystyle\frac{1}{2} x-2}$

Add 2 to both sides:

$\mathrm{y=\displaystyle\frac{1}{2} x-2+2}$

Simplify:

$\mathrm{y=\displaystyle\frac{1}{2} x}$

I hope it helps.

Have a nice day.

$\boxed{imperturbability}$

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2 years ago

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Sally gave her brother $3.95 in quarters and dimes. if the number of quarters is 6 more than the number of dimes, how many quart

WARRIOR [948]

13 quarters
q=6+d
25q+10d=395
solve for q and get 13

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4 years ago

Read 2 more answers

Find the equation of the line that

lisabon 2012 [21]

Answer:

answer your own

brainliest me now

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2 years ago

THis Is WaLtEr AnD i GiVe YoU 20 pOiNtS mErRy ChRiStMaS!!

Amanda [17]

Answer:

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Step-by-step explanation:

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3 years ago