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Flauer [41]
3 years ago
12

I could use alot of help on this please and thankyouuuu

Mathematics
1 answer:
kicyunya [14]3 years ago
6 0

Answer:

B. Step 4 is incorrect , it should be \frac{10}{8}

Step-by-step explanation:

6x-1= -2x+9

Step 1

Collect like terms and change signs if you move anything from one side to the other; 6x+2x = 9+1

Step 2: Add like terms on both sides

8x = 10

Step 3: To remain with just x on one side, divide both sides by 8 and it becomes;

\frac{8x}{8} = \frac{10}{8}

The two 8s cancel each other and you remain with x=\frac{10}{8}

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if it took 9 hours to mow 15 lawns, then at that rate, how many lawns could be mowed in 27 hours? What was the rate of lawns mow
sammy [17]

Answer:

Step-by-step explanation:

15lawns/9hours= 1.6 lawns mowed per hour

1.6lph*27hours=43.2 lawns

6 0
2 years ago
Jacob leaves his summer cottage and drives home. After
krok68 [10]

Answer:

A linear relationship can be written as:

y = a*x + b

Where a is the slope and b is the y-intercept.

If this line passes through the points (a, b) and (c, d) then the slope can be written as:

a = (a - c)/(b - d)

Here y will represent the distance between Jacob and his house, and the variable x represents the time that he has ben driving.

In this case, we know that after driving for 5 hours, he is 112km from home.

Then we can write this point as (5h, 112km)

We also know that after 7 hours he is 15km from home.

Then we can write this point as (7h, 15km)

Then the slope of this function will be:

a = (15km - 112km)/(7h - 5h) = -48.5 km/h

Then the equation is:

y = -(48.5 km/h)*x + b

To find the value of b, we can replace the values of one of the points, for example in the point (7h, 15km)

This means that we need to replace x by 12h, and y by 15km, then we get:

15km = -( 48.5 km/h)*7h + b

15km + ( 48.5 km/h)*7h = b = 354.5 km

then the equation will be:

y = (-48.5 km/h)*x + 354.5 km

Now we want to answer: How long had Jacob been driving when he was 209 km from  home?

Then we need to only replace y by 209km, and solve for x:

209km = (-48.5 km/h)*x + 354.5 km

209km - 354.5 km = (-48.5 km/h)*x

-145.5km =  (-48.5 km/h)*x

-145.5km/( -48.5 km/h) = x = 3h

So he is 209km away from his home after driving for 3 hours.

6 0
3 years ago
The password for a new online gaming site must contain three letters followed by four digits . The digits can be repeated by but
vesna_86 [32]

Answer:

If I am correct, then it is 1,867,866,560 .

Share

Step-by-step explanation:

7 0
2 years ago
SOMEBODY VIEW THE PICTURE! PLEASE FASTT
Arte-miy333 [17]

Answer:

y=1/1

Step-by-step explanation:

4 0
2 years ago
Find the probability of this event Enter the answer as a fraction in simplest form, as a decimal, and as a
Step2247 [10]

Answer:

12+12+4+6+26=50

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3 0
3 years ago
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