Answer:
m=-4
Step-by-step explanation:
5m-10m=-10m+5m=-(10m-5m)=-5m=20
divide by 5 on both sides, -m=4
miltiply by -1 on both sides, m=-4
Answer:
$ 800
Step-by-step explanation:
Parking slot is in the shape of parallelogram.
base = 3 m
Height = 6 2/3 m
Area = base * height
Cost of paving the parking spot = 20 * 40
= $ 800
Answer:
There is a 1/6 chance of rolling a certain number and 1/2 chance of getting a heads.
1/6 x 1/2 = 1/12 so C.
1 is the chance of getting the wanted number / 6 is all the numbers in total
When there are multiple chances you just multiply the fractions
Step-by-step explanation:
Answer:
a = 3
Step-by-step explanation:
Factor both expressions
x² - x - 6
Consider the factors of the constant term (- 6) which sum to give the coefficient of the x- term (- 1)
The factors are - 3 and + 2 , since
- 3 × 2 = - 6 and - 3 + 2 = - 1 , thus
x² - x - 6 = (x - 3)(x + 2)
-----------------------------------
x² + 3x - 18
consider factors of constant term (- 18) which sum to give the coefficient of the x- term (+ 3)
The factors are + 6 and - 3 , since
6 × - 3 = - 18 and 6 - 3 = + 3 , thus
x² + 3x - 18 = (x + 6)(x - 3)
Both expressions have a common factor of (x - 3)
Compare with (x - a ), then a = 3
Answer:
1.
336-6=330
330÷6=55
55 Students in each bus
2.
242-11=231
231÷7=33
Each book was 33 dollars
3.
5+30+100=135
The smallest number is 5
4.
18-3=15
15÷8=1.8
Each candy bar was 1.8 dollars
5.
14-9=5
Her allowance is 5 dollars
6.
4+20+60=84
The smallest number is 4
7.
12-7=5
5×2=10
She had 10 in the begining
