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3 years ago

8x-7(1/2x+7)=14 solve thid

1 answer:

7 0

First, you would use the distributive property to multiply -7 into the parenthesis. Then you’d have 8x-3.5x-49=14 Then you add 49 to both sides to combine like terms and get 8x-3.5x=63 Next you would combine like terms on the left side by subtracting 3.5x from 8x and end up with 4.5x=63 Then to get x by itself you would divide by 4.5 on both sides and end up with X=14 being your answer.

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if a motercycle is moving at a constant speed down the highway of 40 km/hr, how long would it the motorcycle to travel 10 km

ahrayia [7]

Answer:

15 minutes

Step-by-step explanation:

First, the motorcycle goes at a speed of 40 km/hr.

The question asks for how long it would take to travel 10 km.

Well, there are 60 minutes in an hour, since we will be translating into minutes.

Also, 10 km is 1/4 of 40 km, so it would make sense that the time length would be 1/4 of an hour as well.

1/4 of 60 minutes is 15 minutes. So it takes 15 minutes for the motorcycle to travel 10 km.

Now, if all this wordy stuff is too much to comprehend, you can also solve using proportional relationships.

$\frac{40km}{60min}=\frac{10km}{xmin}$

Now cross multiply:

$40km*xmin=10km*60min\\40x=600$

Divide both sides by 40:

$\frac{40x}{40}=\frac{600}{40}\\x=15$

Again, this shows that it wouls take 15 minutes for the motorcycle to travel 10 km.

6 0

3 years ago

Given g(x) is a linear function and passes through the points (3,2) and (5,-1),

Slav-nsk [51]

Answer:

-3/2

Step-by-step explanation:

here it goes. (-1)- (2) / (5)-(3)

7 0

3 years ago

1. 650 - 700 - 800 = ?<br>2. 25 - 45 + 23 ＝?

butalik [34]

carry on learning

7 0

3 years ago

Read 2 more answers

Square oabc is drawn on a centimetre grid

Vikentia [17]

Answer:

2 points

(3, 3) and (1, 3)

Step-by-step explanation:

5 0

2 years ago

What is the end behavior for f(x)=4x^4+2x^3-13x^2-14x+24?

Tpy6a [65]

Answer:

This means that f(x)→∞ as x→−∞ and f(x)→∞ as x→∞.

Step-by-step explanation:

Since the leading term of the polynomial (the term in a polynomial which contains the highest power of the variable) is x4, then the degree is 4, i.e. even, and the leading coefficient is 1, i.e. positive.

This means that f(x)→∞ as x→−∞ and f(x)→∞ as x→∞.

8 0

3 years ago