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tatiyna
3 years ago
11

There are 78 students in the fourth grade 39 of them are girls

Mathematics
2 answers:
Zepler [3.9K]3 years ago
6 0
What is the rest of the problem or equation ?
ira [324]3 years ago
5 0

Answer:

This means that the answer is 39

Step-by-step explanation:

if u subtract 78 from 39 u get 39 just as if u add 39 + 39= 78.

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I'm very confused on how to solve this problem, can anyone please help? Thanks!
Pepsi [2]

Answer:

.

Step-by-step explanation:

DC = 16 and

DB = 30 so

CB = 14

DB = 30 and

EB = 49 so

EB = 19

5 0
3 years ago
Can someone help with my homework please
EleoNora [17]
B is the answer to this problem
8 0
3 years ago
Explain the reasoning please
Svet_ta [14]

Step-by-step explanation:

Something to keep in mind is that anything greater than 0 is positive and anything less than 0 is negative

a is to the right of 0 and 1 making it a positive number

b is to the left of 0 making is a negative number

A. a is greater than 1 and b is a negative number

negative number * positive number = negative number

We already know that a is greater than 1 so ab has to be much less than -1 making ab+1 a negative expression

B. Looking at the number line, you can tell that the distance between 1 and a is a bit less than the distance between 0 and 1

This means that a= 1.x not 2

Because of this, a-2 is negative

C. -b

b is a negative number which means that -b would be positive

D. a+b

Looking at the number line, you can tell that the distance between 0 and a is less than the distance between 0 and b

Therefore, a+b is negative

E. a-b

Since b is already negative, the expression would simplify to two positive numbers being added

This means that a-b can't be negative

F. a-1

The number line shows us that a is greater than 1, therefore, a minus 1 would be positive

I hope this helps in some way or another

7 0
3 years ago
Read 2 more answers
Given f(x) = 10-2x find f(7)
lara [203]
10 - 2x
10 - 2(7)
= 10 - 14
= -4
8 0
3 years ago
Read 2 more answers
What is the minimum value for g(x)=x2−10x+16 ?
mr_godi [17]
G(x)=x^2-10x+16
g(x)=x^2-10x+25-25+16
g(x)= (x-5)^2-9
minimum value is -9
3 0
3 years ago
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