The graph shows the relationship between the pounds of candy bought at a candy shop and the total cost, in dollars.

I don’t understand this can someone please give me and example on how to do it please?

olga55 [171]

For the first one,

you multiply 5x and -5 to get -25.

Then you move the constant to the right and change the sign to get 3x= -21 +25.

Calculate the sum of -21+25 to get 4.

Divide both sides of the equation by 3 to get x=4/3.

So then your final answer is x=4
——
3

For the second one,

Distribute 7 through the parentheses to get 14x + 14+8=120

The you add 14+8 to get 22. Your equation should be 14x+22=120

Move the constant to the right side and change its sign to get 14x=120-22

Subtract 120-22 to get 98. Now your equation should be 14x=98

Divide both sides of the equation by 14 to get x=7.

Your finial answer for the second one should be x=7.
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I hope this made sense.

5 0

3 years ago

write an even number that has a 7 in the hundreds place , has an odd number in the thousands place and is multiple of 10

Serjik [45]

Even numbers end with 0,2,4,6,8

7 in hundreds place

odd in thousands place, odd numbers are 1,3,5,7,9

multiplue of 10 end with 0

so therfor the number has 7 in hundreds place and ends with 0 with odd in thousands and undefined hundreds place

50 options

some examples are
1730
9790

any number, x7y0 such that x is odd and y can be any number

7 0

3 years ago

What is the slope of the line that passes through the points (-3,2) and (-1,-5)

Oduvanchick [21]

Answer:

m = -7/2

Step-by-step explanation:

(y2-y1) / (x2-x1)

->

(-5 - 2) / ( -1 -3)

= -7/2

hope that helps :D

7 0

3 years ago

Select the correct choice below and fill in the answer box(es) to complete your choice.

Tomtit [17]

Answer:

A.18.9285714286

B.18 remainder 39

Step-by-step explanation:

0 1 8

4 2 7 9 5

− 0

7 9

− 4 2

3 7 5

− 3 3 6

3 9

3 0

3 years ago

jabu left town A to travel to town B at 6:00 a.m. he drove at an average speed of 80km/h. At 8.30a.m. Sipho left town A to trave

7nadin3 [17]

Answer:

Sipho catches up Jabu at 6:30 pm

Step-by-step explanation:

Jabu left town A to travel to town B at 6:00 a.m. he drove at an average speed of 80km/h.

At 8:30 am, when Sipho leaves, we will have traveled 2.5 hours at 80 km/h, so he will be 80*2.5 = 200 km ahead.

From then, his position will be given by:

$J(t) = 200 + 80t$

Sipho left town A to travel to town B. He drove at an average speed of 100 km/h.

His position will be given by:

$S(t) = 100t$

At what time will Sipho catch up jabu?

He will catch up in t hours, and t is found when:

$S(t) = J(t)$

So

$100t = 200 + 80t$

$20t = 200$

$t = \frac{200}{20} = 10$

He will catch up 10 hours after 8:30 am, that is, 6:30 pm.

Sipho catches up Jabu at 6:30 pm

4 0

3 years ago