<span>13 more than 4 times a number is negative 91
</span>Convert to numbers:
13 more than 4: 4+13
times a number: (x)
is negative 91: = -91
Put it together:
4x+13=-91
x = -26
Answer:
a) 256
b) 1/256
Step-by-step explanation:
_ _ _ _ _ _ _ _
every position has two possibilities (head or tail)
So,
2×2×2×2×2×2×2×2 = 2⁸ = 256
b) all tails is one of the 256 possible outcomes, so the probability is 1/256
Answer:
3/10
Step-by-step explanation:
Find the least common denominator or LCM of the two denominators:
LCM of 5 and 10 is 10
For the 1st fraction, since 5 × 2 = 10,
1
5
=
1 × 2
5 × 2
=
2
10
Likewise, for the 2nd fraction, since 10 × 1 = 10,
3
10
=
3 × 1
10 × 1
=
3
10
Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
2
10
<
3
10
or
1
5
<
3
10
Answer: 
Step-by-step explanation:
You can apply the elimination method:
- Multiply the first equation by -2.
- Add both equations to cancel out the variable x.
- Solve for y:
- Substitute y=0 into any of the original equations ans solve for x. Then:
