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3 years ago

Help homework is due today. please

Mathematics

1 answer:

Oxana [17]3 years ago

8 0

First solve the equation:

5(3x-7)=20 => 15x - 35 = 20 => 15x = 55 => x=11/3

Fill in this solution in 6x-8:

6*11/3 - 8 = 22 - 8 = 14

Second question: apply the distributive property (ie,. both terms get multiplied by 4/5):

4/5(20x - 10) = 80/5x - 40/5 = 16x - 8

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5.5r - 8.35s when r = 12 and s = 4.

nataly862011 [7]

Answer:

32.6

Step-by-step explanation:

just do this

5.5(12)-8.35(4)

then solve

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3 years ago

At noon, the shadow of a flagpole is 10 feet long. At the same time, the shadow of a 140-foot tall building is 60 feet long. Wha

Free_Kalibri [48]

10=2x5
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2 years ago

-15 + 12x = 5x + 7 -3x SOLVE FOR X

Natali [406]

Answer: $x=\frac{11}{5}$

Simplify both sides of the equation

$-15+12x=5x+7+-3x$

$12x-15=(5x+-3x)+(7)$ (Combine Like Terms)

$12x-15=2x+7$

Subtract 2x from both sides

$12x-15-2x=2x+7-2x\\10x-15=7$

Divide both sides by 10

$\frac{10x}{10} =\frac{22}{10}$

$x=\frac{11}{5}$

6 0

3 years ago

Read 2 more answers

The school is located where Wilson Street and Green Street intersect. Which ordered

blondinia [14]

(5,3) is the answer for the current question

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2 years ago

Factor f(x) = 15x^3 - 15x^2 - 90x completely and determine the exact value(s) of the zero(s) and enter them as a comma separated

Illusion [34]

Answer:

$x=-2,0,3$

Step-by-step explanation:

We have been given a function $f(x)=15x^3-15x^2-90x$ . We are asked to find the zeros of our given function.

To find the zeros of our given function, we will equate our given function by 0 as shown below:

$15x^3-15x^2-90x=0$

Now, we will factor our equation. We can see that all terms of our equation a common factor that is $15x$ .

Upon factoring out $15x$ , we will get:

$15x(x^2-x-6)=0$

Now, we will split the middle term of our equation into parts, whose sum is $-1$ and whose product is $-6$ . We know such two numbers are $-3\text{ and }2$ .