Question

Please help meeee. (EXPLAIN PLEASE)

Answer 1

7)

GIVEN :-

• Flat fee = $5
• Amount you receive on walking a mile = $2

TO FIND :-

• Expression for the total money you'll collect from your sponsor
• Money you receive for walking 20 miles

PROCEDURE :-

Lets assume that you walk 'x' miles.

For 1 mile , you'll get $2.

⇒ For 'x' miles , you'll get =
`2 * x` = $(2x)

So,

Total money you'll receive from your sponsor after walking 'x' miles = (Flat fee) + (Amount you'll receive for walking 'x' miles)

⇒ $5 + $(2x)

⇒ $(2x + 5)

∴ Money you'll receive after walking 20 miles = $(2 × 20 + 5) = $45

8)

GIVEN :-

• Number of tomatoes he already has = 6
• Number of tomatoes needed to win the contest = 30
• Number of tomatoes he needs to produce per week = 8

TO FIND :-

• Number of weeks he needs to produce 30 tomatoes

PROCEDURE :-

Let the number of weeks he needs to produce 30 tomatoes be x.

In 1 week , he needs to produce 8 tomatoes.

⇒ In 'x' weeks , he needs to produce =
`8 * x = 8x` tomatoes.

So,

(Number of tomatoes he produces in 'x' weeks) + (number of tomatoes he already has) = Number of tomatoes he needed to win the contest

⇒
`8x + 6 = 30`

⇒
`8x = 30 - 6 = 24`

⇒
`x = (24)/(8) = 3`

∴ He needs 3 weeks to produce 30 tomatoes.