A student solved this problem by working backwards. Riley has some gerbils. He has 4 times as many as Lukas. Lukas has 2 gerbils. Riley gave 5 away and bought 2 more. How many gerbils does Riley have now?

Students's solution: Lukas has 2 gerbils, so Riley had 2 × 4 to begin with. So Riley had 8 gerbils. He gave away 5, so 8 – 5 = 3. He bought 2, so 2 + 3 = 5. So Riley has 5 gerbils.

Here is another problem that can also be solved by working backwards.

Maddy picked 2 times as many tomatoes as carrots from her garden. She picked 4 fewer cucumbers than tomatoes. Maddy picked 5 carrots.

How many cucumbers did Maddy pick?

Answers

Answer 1

Answer: 6
I hope this helped !!

Related Questions

What is the sum of 2/5 and 2/4?
Jack, Jill, and Ron share a 2-bedroom apartment. Rent is represented by R. The water bill is $20 per person. The electric bill is $250 a month. Jill will be picking up the water bill for everyone as well as half of the electric. Ron will be paying the other half of the electric bill as well as his third of the rent. Jack will be paying Jill's portion of the rent as well as his own. Match each person with the appropriate algebraic expression.-abcd -abcd 185-abcd -abcd Jill's paymentJack's paymentRon's paymentNo Match
Find the probability of drawing a pawn a knight and another pawn from the bag of white pieces
Last week, Hazel paid $32 to have 50 reports printed. This week, she paid $57 to have 100 reports printed. Assume the relationship is linear. Which equation models the relationship between the number of reports,x, and the and the cost, y, ?
A furniture maker uses the specification 19.88 ≤ w ≤ 20.12 for the width w in inches of a desk drawer. Write the specification as an absolute value inequality.

Write the most precise name for the space figure with the given properties. A lateral surface and two circular bases?

Answers

The figure would be a cylinder, which is two circular bases connected by a lateral side.

That would be a cylinder. c;

write an equation with the solution x=20. The equation should have the variable on both sides, a fractional coefficient on the left side, and a fraction anywhere on the right side

Answers

Answer:

$(8)/(7)x=(20)/(7)+x$

Step-by-step explanation:

The given equation is

$x=20$

We need to write an equation that should have the variable on both sides, a fractional coefficient on the left side, and a fraction anywhere on the right side.

Multiply both sides by 1/7 in the given equation.

$(1)/(7)* x=(1)/(7)* 20$

$(1)/(7)x=(20)/(7)$

Add x on both sides.

$(1)/(7)x+x=(20)/(7)+x$

$(8)/(7)x=(20)/(7)+x$

This equation have the variable x on both sides, a fractional coefficient 8/7 on the left side, and a fraction 20/7 on the right side.

Therefore the required equation is $(8)/(7)x=(20)/(7)+x$ .

1/2x+9=2x/2-1. I hope this meets ur criteria. It works and equals 20.

Rory is staying in a cabin on a hill 300 feet above sea level. She walks down the hill to the water’s edge. The equation of her average change in elevation over time is e = 300 – 10t, where t is the time in minutes since she left the cabin, and e is her elevation with regard to sea level. Which values are viable points, and what are their values in the table relating t and e

Answers

The correct answer :

a = not viable

b = 265

c = 0

Answer: a=Not viable,b=265,c=0

Step-by-step explanation: Just did it.

Find the upper quartile of this data set: 593, 588, 540, 434, 420, 398, 390, 375A. 427

B. 394

C. 420

D. 564

Answers

The answer is D. 564
When you put all the numbers in order from least to greatest and find the median which is between 420 and 434, you can then find your upper quartile which would be between 540 and 588 making it D

Answer:

564.

Step-by-step explanation:

Find the sum of 5m + 3n + p, -5p + 3n, and 2n - m.-4m + 8n - 4p

4m + 8n + 4p

4m - 8n - 4p

4m + 8n - 4p