1. Five more than twice a number is 7.

Mathematics

2 answers:

Nataly [62]4 years ago

8 0

Answer:

5+2n=7

Step-by-step explanation:

5+2n=7

7-5=2n

2=2n

2÷2=1

n=1

VashaNatasha [74]4 years ago

3 0

Let’s say the number is “n”

First it’s telling u twice a number meaning the number is going to multiply by 2 so

2 X n (X means multiplication) or 2n

Then it states five more than which means to add 5 to what follows so

2n + 5

It’s saying it’s 7 so

2n+5=7
2n= 7-5
2n=2
2n/2=2/2
N=1

The final answer is 1 meaning the number is 1

You might be interested in

Finish the pattern 2,4,8,16,_,_,_,_

motikmotik

It's multiplying by two

8 0

3 years ago

How do you determine whether a sum will be positive, negative, or 0 when adding a positive and a negative integer?

professor190 [17]

If the integers have the same absolute value ... they're the same number
but with different signs ... then their sum is zero.

Example: (plus) 927 added to (negative) 927 = zero

If the integers have different absolute values ... they're different numbers with different
signs ... then their sum has the same sign as the one with the bigger absolute value.

Examples:

==> (plus) 92 added to (negative) 91
   92 and 91 are 1 number apart on the number line.
   The positive number is bigger than the negative number.
   So the sum is +1 .

==> (plus) 35 added to (negative) 37
      35 and 37 are 2 numbers apart on the number line.
      The negative number is bigger than the positive one.
So the sum is -2 .

3 0

3 years ago

Domain: Range: HELP I BEG

dalvyx [7]

Well if the cubic unit is one, then we can assume that the domain is -1<0

7 0

3 years ago

Cos (90-theta) • cosec90-theta) =tano. How?

denis-greek [22]

Answer:

______________________________________________________

TRIGONOMETRY IDENTITIES TO BE USED IN THE QUESTION :-