Mathematics
Mathematics, 29.03.2021 23:40, cogger9348

Sachi has 238 rocks in her collection. She finds 47 more rocks. Then she gives 159 rocks to her brother. She solves this equation 238 + 47 – 159 = r. She says, “I have 126 rocks left.”

1. Is Sachi’s answer reasonable?

2. How do you know?

3. Use estimation to check her work.

Show your work. There are three parts to your answer. Be sure to share your estimation strategy.

answer
Answers: 3

Other questions on the subject: Mathematics

image
Mathematics, 21.06.2019 21:00, kdawg203
Yahir designs bracelets. he uses between 9 and 15 red and yellow beads in the ratio of 2 red bead to 5 yellow beads. drag the beads into the container to meet these requirements
Answers: 2
image
Mathematics, 22.06.2019 01:30, zariah10191101
What is the remainder when 3x^2-x-10 is divided by x-1 -6,-7,-8, or -9
Answers: 1
image
Mathematics, 22.06.2019 01:30, musfirahkhurram
Sara is flying a kite at the park. the angle of elevation from sara to kite in the sky is 53° and the length of the string is 32 feet. of sara is 5 feet tall how far off the ground is the kite
Answers: 1
image
Mathematics, 22.06.2019 02:00, QUEEN2267
The image of abc after a reflection across eg is abc
Answers: 2
Do you know the correct answer?
Sachi has 238 rocks in her collection. She finds 47 more rocks. Then she gives 159 rocks to her brot...

Questions in other subjects:

Konu
Mathematics, 21.06.2019 22:30
Konu
Biology, 21.06.2019 22:30