To estimate 25% of a decimal number, you can round the number in such a way that you can mentally
divide by 4
Which shows the correct relationship that exists between the sides of this right triangle?
122 + y2 = 132
What is the sum of −4y−3x−2+3y−x+4-4y-3x-2+3y-x+4?
−y−4x+2
What does the histogram report about the number of hours of TV watched by students last week?
About twice as many students watched 6 h to 10 h as watched 11 h to 15 h.
Solve for A using the Pythagorean Theorem.
8
Gino wants to leave at least 20% tip on his restaurant bill of $197.40. Approximately how much tip should he add to the bill?
40
What is the difference in the sum of the interior angles between a four-sided polygon (square) and a three-sided polygon (triangle)?
180°
(12a−7b)+(3a−4)+(5b+7)
15a−2b+3
How many times more frogs are there in September as in May?
4 times because the vertical axis shows an increase from 10 to 40
Two shorter sides of a right-angled triangle are 5 cm and 9 cm. Which is closest to the length of the longest side?
10.3 cm
42 of the people at the school play were children. This accounted for 35% of the people at the play. How many people were at the school play?
120
The circumference of a circle is 119.32 cm what is the radius of the circle?
Use 3.14 for 𝜋.
19 cm
9z + 6z
15z
Cody played a word game in which points are awarded depending on the letters that are used. He played 6 words and earned the following scores: 9, 6, 3, 4, 3, 9
5 points
To help the environment and make some extra money, Juliette takes her empty cans to the Cash Not Trash recycling shop. The shop pays cash based on the total weight of the cans Juliette brings in for recycling. There is a proportional relationship between the weight (in kilograms) of the cans Juliette brings into the shop, x, and the amount (in dollars) the shop pays Juliette, y.
Last month, Juliette brought 2 kilograms of cans into the shop and was paid $1. Write the equation for the relationship between x and y.
y = 0.5x
Which number is NOT a prime number?... 17, 23, 3, 38
38
What is the surface area of this cylinder?
Use 𝜋 ≈ 3.14 and round your answer to the nearest hundredth.
452.16 square meters
In a flash of sheer brilliance, Matthew invents a time machine! The machine uses a small nuclear reactor to generate the electricity it needs to travel back in time.
There is a proportional relationship between how many years Matthew wants to travel back in time, x, and how much electricity (in megawatts) and y (years traveled)
Write an equation for the relationship between x and y. Simplify any fractions.
y = x
You flip a coin.
What is P(tails)?
Write your answer as a percentage.
50%
How many sides does a quadrilateral have?
4
How do you write 5.6 × 10-5 in standard form?
0.000 056
The circumference of a circle is 62.8 millimetres. What is the circle's diameter?
use 3.14 for 𝜋.
20 mm
Solve for j.
–7j = –6j + 6
j = -6
Manuel has the following data: 16, 11, 17, 13, n
If the mean is 15, which number could n be?: 13, or 18?
18
A triangle has an angle that measures 70°. The other two angles are in a ratio of 7:15. What are the measures of those two angles?
35° and 75°