Math quiz 7B Alejandra Pastrana

The radious of the Earth is 6378.1km, wich is 2981.1km greater than the radious of Mars. Find the radious of Mars.

9056.5

3397.0

3399.0

6397.9

Mr. Johnson usually eats three meals a day. How many meals does he eat in a normal week?

100

Britney used 42 stamps to mail 7 letters. She used the same number of stamps on each letter. How many stamps did Britney put on each letter?

In the following week, he ate three times on Monday, Tuesday, and Friday, and four times on the rest of the days. How many meals did he eat during the week?

Collin bought 48 granola bars. If the granola bars came in packs of 12, how many packs did Collin buy?

What is the correct process of these operation ?2(–3)3 – (–3)2 – 4(–3) + 2

= 2(–27) – (9) + 12 + 2 = –54 – 9 + 14 = –63 + 14 = –49

= 2(–27) – (9) + 12 + 2 = –54 – 9 + 14 = 19

= –54 – 9 + 14 = –63 + 14 = –49

48 ÷ 12 = 4

Three times a number, increased by seventeen

3(a + 17)

3a + 17

(17 + 3)a

None of the above.

Jenny earns $30 a day working part time at a supermarket. Write an algebraic expression to represent the amount of money she will earn in d days.

30d

None of the above.

30/d

30 + d

In the amusement park, we have ridden in "The crazy wheel", which is very funny. We have been told by the caretaker that it has worked 40 times and always full, taking 5 children each trip. Another attraction, "The Purple Dragon", has taken 3 times more children than "The Crazy Wheel". How many children have been mounted on "The Purple Dragon"?

300

1000

600

999

With the above problem solves: How many children have ridden in "The Crazy Wheel"?

600

300

200

666

The pirate Barba Silver has told me that he has found a treasure in a desert island that had in total 3000 gold coins distributed equally in 3 coffers. In addition, in each box there were also 200 silver coins and 2 times more bronze coins than silver coins. How many coins were there in each box?

1600

1000

230

With the above problem solves: How many coins were there in each box?

1600

1000

2000

3000

With the above problem solves: How many bronze coins were in each chest?

250

400

333

255

Math quiz 7B Alejandra Pastrana

More Quizzes