Answer:
D.5
Step-by-step explanation:
You can write the following equations from the information given:
y=x+3 (1)
11x+5y=47 (2)
x is the number of hardback books
y is the number of paperback books
You can replace (1) in (2):
11x+5(x+3)=47
11x+5x+15=47
16x=47-15
16x=32
x=32/16
x=2
Then, you can replace the value of x in (1) to find the value of y:
y=2+3
y=5
According to this, the answer is that Jamal bought 5 paperback books.
To know if it's even based on it's prime factorization, check to see if it is a multiple of 2. If it is, it is an even number. If it is not, it is an odd number.
Answer:
Step-by-step explanation:
1. A
2.B
3. Don't see the choices, but the correct answer would be
4.A
5.B
6.A
7.B
8.1000/1=x/4200 1 Kilogram=1,000 grams
9.B
10. Answer: 1/5 = 8/x
Hi there!
Th' following triangle is divided into 2 sub-triangles!
• In 1ˢᵗ triangle :-
tan 45° =
⇒ 1 =
⇒
= 5
• In 2ⁿᵈ triangle :-
cos 30° =
⇒
=
⇒
= 2 × 5
⇒
= 10
Hence,
Th required answer is 10 units.
~ Hope it helps!