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Ilia_Sergeevich [38]
3 years ago
12

Answ

Mathematics
1 answer:
Amiraneli [1.4K]3 years ago
7 0

Answer:

1. 7

2. 48

Step-by-step explanation:

you have to <u>subtract</u> 49-42 because some got taken away then you should end up with 7, 63-15 is 48.

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Solve the following system of equations by using the substitution method.
Hatshy [7]
X = y + 3
2x + y = 9

Solution..
---------------

Substitute for x=y+3 in the second equation...

2x+y = 9

2(y+3)+y=9

2y+6+y=9
3y+6=9
3y=9-6
3y=3
y=3/3
y=1....

Substitute for y=1 in the first equation...

x=y+3

x = 1+3
x=4..

Am sure the answer is quite evident now...
3 0
3 years ago
A teacher asks her students to fill out a survey about themselves. Which
andreyandreev [35.5K]

Answer:

Age

Step-by-step explanation:

it is about them.

If it were how many siblings they have it, then would not be just about them.

If it were there sport it would not be about them it would also be about sports

3 0
3 years ago
City a and city b had two different temperatures on a particular day four times the temperature of city a was 8c more than 3 tim
alukav5142 [94]

Answer:

temperature of city a=5

temperature of city b=4

Step-by-step explanation:

Given:

Let temperature of city A= a

temperature of city B=b

As given:

4a=8+3b

a-2b=-3

rearranging 2nd equation we get:

a=-3+2b

substituting above in 1st equation we get:

4(-3+2b)-3b=8

8b - 12 = 3b + 8

8b-3b=12+8

5b = 20

b = 4

Now substituting b=4 in 4a = 8 + 3b , we get

4a = 8 + 3b

4a = 8 + 3(4)

4a = 8 + 12

4a = 20

a = 20/4

a = 5

temperature of city a and city b on that day is 5C and 4C respectively!

4 0
3 years ago
Read 2 more answers
The product of two numbers is negative which statement is true select two answers
Gelneren [198K]

Answer:

The product of two numbers is negative. Which statement is true? Select TWO answers.

A. The quotient of the two numbers is positive.

B. The quotient of the two numbers is negative.

C. No conclusion can be drawn about the quotient.

D. The signs of both numbers are negative.

E. The sign of one number is positive and the sign of the other is negative.

Step-by-step explanation:

The correct two options are B (the quotient of the two number is negative) and E (the sign of one number is positive and the sign of the other is negative).

To validate Option B; quotient is the result we get when we divide two numbers. For instance: \frac{-10}{5}  = -2\\therefore:\\-10 * 5 = -50

To validate Option E; multiplying two number of opposite sign will give us negative sign. For instance: -5 * 2 = -10

4 0
3 years ago
Simplify c^3d^4/c^2d
katovenus [111]

Answer:

I think the answer is :-

c {d}^{3}

5 0
2 years ago
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